Tuesday, March 3, 2009

3 + 3 = 4

How can you make this possible ?

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Thursday, February 26, 2009

Hair Problem

What is the probability that, at least two people in the world have exactly same number of hairs ?

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Wednesday, February 11, 2009

Box illusion

Which box is darker ? Why?


Friday, January 30, 2009

Open Top Box

An open box with a square bottom is to be cut from a piece of cardboard 10 feet by 10 feet by cutting out the corners and folding the sides up.

Find the dimensions that will result in the largest volume.


Thursday, January 29, 2009

Geometry and the Globe

You draw two circle one in a plain paper and the other on a north pole, with the pole as a center. Which circle will have a bigger area and Why ?


Tuesday, January 20, 2009

Mysterious Dancer

The dancer is turning clockwise or anti-clockwise?


Thursday, January 1, 2009

"Easy" One

Can you Join Seven spots by drawing straight lines, such that each spot is joined to all others and no lines intersect ?


Wednesday, December 24, 2008

Broken keyword

The Author suddenly had an epiphany, when he realized that he can only write using the first line of letters in his keyboard.

What can you write with one line of a broken keyword ?

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Tuesday, December 16, 2008

Rooster's Dilemma

A young rooster perches on the ridge of a roof, the sides of which slope down at angles of 30 degree and 45 degree to the horizontal, respectively. If the rooster lays an egg, will the egg roll down the side with the steep slope or the side with the gentler slope?


Thursday, December 4, 2008

End of Days

21 ST December 2012 is the End of Days according to Mayan Calendar. It also mention about that the turning point would be a year with minimum number of days.

Starting on Jan 1 and ending on Dec 31, what is the minimum number of days in ten years before 2012? How about in any given ten years ?


Thursday, November 20, 2008

The Headless Man's Letter

A headless man had a letter to write;
It was read by a man who had lost his sight.
The dumb repeated it word for word;
And deaf was he who listened and heard.

- abdeali kothari

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Tuesday, November 18, 2008

Double Proposition

In a small town, a person decided to open up a liquor shop, which was right opposite to a church. The church & its congregation started a campaign to block the liquor shop from opening with petitions and prayed daily against his business.
Work progressed. However, when it was almost complete and was about to open a few days later, a strong lightning struck the liquor shop and it was burnt to the ground.
The church folks were rather smug in their outlook after that, till the liquor owner sued the church authorities on the grounds that the church through its congregation & prayers was ultimately responsible for the destruction of his liquor shop, either through direct or indirect actions or means.
In its reply to the court, the church vehemently denied all responsibility or any connection that their prayers were reasons for the act of God.

If you were Judge, How will you decide ?


Wednesday, November 12, 2008

Numeral Sequence

What comes next in the following sequence ?

1, 2, 3, 2, 1, 2, 3, 4, 2, 1, ??


Wednesday, November 5, 2008

Next Number

What is the next number in the following sequence

1, 8 , 11, 69, 88, 96 ...


Tuesday, October 14, 2008

The Secret Password

A man wants to enter a private club, but the main door is guarded by a doorman who only lets people in who know the right password. The man hides in the bushes near the door and listens.

One patron approaches the doorman, who says, "12."
The patron replies, "6," and the doorman lets him in.

Another patron approaches the doorman who says, "6."
The patron replies, "3," and the doorman lets him in.

Thinking he has the code figures out, the man approaches the doorman.
The doorman says, "8," and the man replies, "4."
"I'm sorry sir," the doorman says, "This is a private club and only members are allowed."

What did the man do wrong?

Posted by Sammy's Dad on October 14, 2008.

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Unique Distance

It takes three days to go from X to Y, but four days to go from Y to X.

Can you think of X and Y ?

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Thursday, October 9, 2008

Poor Farmer

"You have four straight fencing of one yard, two yards, three yards, and four yards", "What ever area you can enclose in those four will be yours" said the King. The poor Farmer, if only he had listened to his maths teacher could have maximized this opportunity. Luckily he came to ToM. Now only YOU can help. Will you ?

* Assume: Nothing

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Monday, October 6, 2008

Run Cat Boss

If 44 + 7 = RUN and 6 + 85 = CAT and 5 + 76 + 16 = BOSS

What does 35 + 33 + 6 equal ?

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Saturday, October 4, 2008

Four Wise Words

A long, long time ago, two Egyptian camel drivers were fighting for the hand of the daughter of the sheik of Abbudzjabbu. The sheik, who liked neither of these men to become the future husband of his daughter, came up with a clever plan: a race would determine who of the two men would be allowed to marry his daughter. And so the sheik organized a camel race. Both camel drivers had to travel from Cairo to Abbudzjabbu, and the one whose camel would arrive last in Abbudzjabbu, would be allowed to marry the sheik's daughter.
The two camel drivers, realizing that this could become a rather lengthy expedition, finally decided to consult the Wise Man of their village. Arrived there, they explained him the situation, upon which the Wise Man raised his cane and spoke four wise words. Relieved, the two camel drivers left his tent: they were ready for the contest! What were the words?


Wednesday, October 1, 2008

The Code *

"Four have only one", and "Three have two."
"What about eight" asked the student.
"It has three."
"and Eleven"
"Well! Eleven has eight"

What's going on here ?

* Changed due to an email from a ToM User

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Tuesday, September 30, 2008


Early 22nd century! A city in space without gravity. 

Wall-E* following EVE on his escape-pod reaches a place which looks like a parking area. Fortunately he got a parking spot. The numbers on the left read 16 , 06, 68, 88 and one on the right says 98. What number he parked his pod ?

*For the uninitiated "Wall-E" is an Earth Robot and "EVE" state of the art feminine robot from space.

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Tuesday, September 23, 2008

Not for the Queen

In chess, there is one specific type of move, the Queen is unable to make but all the other pieces can.

And you thought you know chess, huh !

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Tuesday, September 16, 2008

Question Island

In the weird Question Island, people are as weird as the members of trick of mind.

Answers are not allowed. If the first person begins with a question, the other(s) reply with another question, the first person puts a third question, the opponent responds with a fourth. If you cannot ask the question, you don't speak. Repeated questions not allowed. No multiple questions. If you are wondering how the conversation goes, here is the first ever talk between Adam and Eve of Question Island.

Adam: What time is it?
Eve: Why do you want to know?
Adam: Why do you ask that?
Eve: Why can't you answer a civil question?
Adam: Why can't you look at your watch and tell?
Eve: When are you going to get yourself a watch?
Adam: What's that got to do with it?
Eve: Who do you think you are talking to me like that?
Adam: Where can i find someone who will tell me the time?
... so on. Know, what I mean ! So...

What is the Question ?

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Monday, September 15, 2008

Last Year

What was the last year in which someone could have been born, in order to live in a year which was the square of their age ?

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Friday, September 12, 2008

Fair Enough

Two brothers had a flock of sheep which they sold getting as many dollars, for every sheep as there were sheep in the flock. Intending to share the amount equally, the older brother and then the younger brother, took from it $ 10 each, alternately in succession.

At the last stage, when it was the turn of the younger brother, there remain less than $ 10. the younger brother took this amount and the elder one gave him his new knife for the sharing to be fair.

Now ! YOU tell me, What's the question to be asked, and what is the Answer?

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Wednesday, September 10, 2008

Square in Rubik's Cube

How many squares can you perceive in a Rubik's Cube and how many of them are visible ?

By perceive, I mean you can assume a square, if you can join four co-ordinates to form a square.

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Friday, September 5, 2008

Do Something

What do creating robots, flying rockets and crime scene investigation have in common ?

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Thursday, September 4, 2008

Cosmic Addition

If (Venus + Earth) x Neptune = 40 ,

How much is (Jupiter - Mercury) x Pluto ?

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Monday, September 1, 2008


Is boiling water always hot ? If not, why not ?

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Wednesday, August 20, 2008


You have two Cans !
That's right, you have two Cans filled with water and a large empty container.

Now you must be thinking that this guy is going to ask you to make some calculations and pour waters from one to another, right ? Wrong. I am going to ask you a completely different question so listen(listen !) carefully.

"Is there a way and Can you put all the water into the large container so that you Can tell which water came from which Can ?"

Now there are three can's in the above sentence you of course have to be very careful.

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Thursday, July 31, 2008

Chance of a Century

What are the chances that the first day of the new century is a working day?

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Monday, July 28, 2008

The Joy of Lex

"One hug?" smiled Alice.
"Enough !" said Bob.

What about, "a decimal point?" added Alice
"I'm a dot in place." Bob answered.

"the Mona Lisa ?" asked Alice.
What did Bob said ?

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Thursday, July 24, 2008

2 + 2 = 2 x 2

Simple and unique equation !

Can you tell any similar equations, involving two or more numbers on each side of the equation?

One would be 1/1/1 = 1 * 1 * 1

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Monday, July 21, 2008

Honey Combs

Why do honey bees create hexagonal shapes for Honey Comb ? Why don't they build cylinders or prisms with triangle or square or other cross sections?

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Wednesday, July 16, 2008

Cattle Case

An old farmer died leaving three sons. He bequethed the first son half of his cattle, the second one third and to the third son one ninth.

He had a total of 12 cows and 5 buffalows ! Can you solve the case ?

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Tuesday, July 15, 2008

Odd Sequence

8, ?, 4, ?, 1, ?, 6, ?, 2

Add some odd numbers to make the odd sequence logical (pun intended)

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Friday, July 11, 2008

Força !

What is the most powerful force in the universe ? Why ?

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Wednesday, July 9, 2008

Coin Conundrum

The chances of a tossed coin falling head or tails is almost 50-50 with an extremely small chance of it falling on its edge.

How will you make a coin so that it has a probability of 1/3 to fall heads, 1/3 to fall tails, and 1/3 on its edge?

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Tuesday, July 8, 2008

SUM of the Series

Will the SUM of the following series ever reach 100 ?

1/2 + 1/3 + 1/4 + 1/5 + 1/6 + 1/7 + 1/8 . . .

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Thursday, July 3, 2008

Number Story

The first digit will tell you how many zeroes are there in the story, the second digit will tell you how many one's are there in the story and so on.

How long your story can be and what's the story ?

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Monday, June 23, 2008

Face Value

Why is 2008 quarters (25 cent coins) worth more than 2007 quarters?

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Friday, June 6, 2008

Murder Mystery

One the morning of July 17 The body of Rick litopale was found on his apartment floor; there were only 3 suspects Julie Litopale, his wife, Felix roberston, a friend, and Lynda litopale, his mom. Here are their allibi's

Julie was trying to remember as she was looking at her shoes to her left, Well I came home from work, as usual, and I found my husbands body on the floor, I check and he wasn't breathing, so I called the Police, he had told me before I left, Felix and his mom was coming over later.

Felix came over after I had called him, he said, Well I had come over and had a few beers and I left

His mom said well I had just come over to see my son after a couple of years when I went to Europe.

Well everyone's allibi seems air-tight, can you help solve the murder?

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Monday, June 2, 2008

Alphabet Soup !

When the junior Einstein saw a series of G along with the following alphabets in his soup.


His mind created an amazing calculation. If you would have known the
operation, you might have known the numbers which each alphabet
represent. Don't you ?

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Thursday, May 29, 2008

Unique Problem !

The problems says, re-arrange numbers one through eight, in the grid so that no two consecutive digits are adjacent horizontally, vertically, or diagonally.


Can you do that ?

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Wednesday, May 28, 2008

Basic Arithmetic

Using only "arithmetical" signs, complete the following equation correctly

10 10 10 = 9.50

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Thursday, May 22, 2008

Time Sequence

23 minutes past one, 26 minutes to one...

What is the next item in the sequence.

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Wednesday, May 21, 2008

Who Comes Next ?

Who/What comes next in the following perplexing sequence


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Thursday, May 15, 2008


if 5 empty botlles is equal to 1 full bottle,
how many full bottles in total will you get if you have 77
empty bottles?


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Wednesday, May 14, 2008

Peculiar Groups

Mrs. Connar wrote the following letters in the board

1 2 3 4
5 7 8 9

and said to the class.

"I want you to arrange the eight numbers I have written on the board into two groups of four numbers each. When you add up each group, the sums must be the same.

Your time starts now."

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Tuesday, May 13, 2008

Fill in the Blank

The sentence has ______________ letters.

There are atleast three ways to fill in the blank and make the statement correct. Can you tell them ?

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Friday, April 18, 2008

Still Got Friday

I got on scooter within ten minutes after I got your letter. When I got to Carlsbad, I got a taxi for town. But I got wet through before I got to Carlsbad, and I have got such a cold as I shall not be able to get rid of in a hurry. I got to bank about noon, but first of all I got shaved and dressed. I soon got into the secret of getting a petition before the board, but I could not get an answer then, however I got intelligence from the agent that I should most likely get one the next morning.

As soon as I got back to my hotel, I got my dinner, and got to bed, it was not long before I got to sleep. When I got up in the morning, I got my breakfast, and then got myself dressed, that I might get out in time, to get an answer to my petition. As soon as I got it, I got into the taxi, and got to Carlsbad by three: and about tea time, I got home. I have got nothing particular for you and so Adieu.

What's wrong in the above paragraphs ? Can you fix it ?

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Wednesday, April 16, 2008


Robert Wordsworth said
"SAD can be one of the word, TRY is another one, SAW is not and neither is ZEBRA, Nor you can count LION, but LAD yes, LAD can be one of the word, TIE is in but TIME is out"

"Thats confusing Robert, can you be more specific?" asked Appleseed.

"Well! If the word must have a vowel you cannot have any word starting from Z,X,C,V,B,N,M " added WordsWorth. "What is the biggest word which can be made with the logic given ?"

Any Clue ?

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Monday, April 14, 2008

The Missing Number


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Saturday, April 12, 2008

A Civil Code

Can you decode the following message which was sent, undetected, in 1862 during the American Civil War? Who sent the message?

Burnside, Acquia creek:
Can Inn Ale me with 2 oar our Ann pas Ann me flesh
ends N.y. Corn Inn our with U cud Inn heaven day nest
Wed Roe Moor Tom darkey hat Creek Why Hawk of
abbot inn b chewed i if-Bates

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Wednesday, April 9, 2008

The Carpet Factory

A factory creates carpet with size in the range of length 10-15 foot and breadth 5-10 foot. One of manufacturing machine went bad and started creating a 8 x 1 foot hole in the middle of 9 x 12 foot carpet.

Alex Rogo, the plant manager responsible, when came to know about the problem the machine already created 1000 unit with holes. "I am going to lose my job for this," he thought, "Wait ! I have an idea to reduce the loss."

A week later he was promoted ! What did he do?

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Monday, April 7, 2008

Adam & Eve

An explorer comes across two bodies frozen in ice that are perfectly preserved. He takes them to his laboratory, thaws them out and examines them thoroughly. He claims to know beyond any doubt that the bodies are Adam and Eve. How can he be so sure?

Ross Fraser

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Monday, March 31, 2008

Wooden Rubik's Cube

A Carpenter wants to cut a Wooden Cube into 27 equal cubes.

what is the minimum number of cuts required for the process ?

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Tuesday, March 25, 2008

Hardware Special

The following board was seen on the hardware store window.


$ .25 each
100 for $ .75
1000 for $ 1.00
10,000 for $ 1.25

What are they selling ?

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Where am I?

I traveled 500 miles due north, then 500 miles due east, then 500 miles due south and ended up where I started. Where am I?

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Wrong date?

Nero and Gregor have been good friends for many years. Nero had some tendency to be absent-minded. In order not to forget his friend Gregor's anniversary (birthday), he had written it down on his handkerchief, so that he would never forget it. Therefore at the january 7 he had bought a nice present for Gregor and decided to come to his party.

Upon arrival he knocked on the door of Gregor's house. Gregor opened the door and Nero shouted: "Happy birthday!" and tried to give Gregor his present. However, Gregor was astonished and mumbled: "but.. it is not my birthday, my anniversary is on the second of april!"

What was written on Nero's handkerchief?

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Sunday, March 23, 2008

Time is Money

A man give 10 cents to one son and 15 cents to another son; what time is it?

btw this is a funny one ;)

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Friday, March 21, 2008

The sky is the limit

Sorry for the disappearance but I'm back with a toughie:

Where is the world is the sky no more than three yards wide?

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Thursday, March 20, 2008

Effervescent Nectar

"Could I induce you to imbibe an effervescent nectar infused with the savory fluid of cacao ?"


"Thats a perfect example of your obtuse mentality"


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Monday, March 10, 2008

Numbers Series

Find the next set of numbers.


by: Melanie

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Tuesday, February 26, 2008

Odd number of Birds

Can you put 46 birds into nine cages so that each cage contains an odd number of birds.

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Wednesday, February 20, 2008

What is it ?

I could not resist. It was just sitting there in the store, silent, waiting. Every day I would stop and look at it, with the freakish fascination of bystanders at the scene of an accident.

It kept calling to me. I kept coming back to it.

A friend was wondering what was wrong with me. "Why do you look at that? You don't even like it!". How could I explain to him the indifferent compulsion that drew me again and again? How could I explain that words such as "like" became meaningless, hollow noise when compared to the universe of my fascination?

And then one day, I bought it: ?

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Monday, February 18, 2008

Alien Division

Alien's "calculator" scanned twenty humans in four houses, immediately six showed up in the "calculator's" display.

What will the "calculator" show if the number of humans are ten distributed in five houses?

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Wednesday, February 6, 2008

Rock in the rowboat

A rowboat is floating in a swimming pool. Which will raise the water level more - dropping a rock into the water or putting the same rock into the boat? Or does it make any difference?

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Thursday, January 17, 2008

On Planting Trees

If you wish to plant some trees so that each is equal distant from every other tree what is the largest number you can plant.

By the way, Red Maple is one of the best tree to plant.

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Monday, January 7, 2008

Interview @ Microsoft

I was at Microsoft for an interview. At the end they asked me, if I have any questions for them. I thought this is my chance and asked,

"What is the optimum size of a team in a project, so that if we add more members, they do not contribute productivity equivalent to the percentage increase in the staff size and why ?"

What do you think they said?

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Monday, December 31, 2007

Wrong Time

At 16 minutes past 2, one afternoon a man, unaware of time checks his digital clock, it shows 2:17.

Its incorrect ! he knew, How ?

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Tuesday, December 25, 2007

December Days

What is so unique about December, other than the Christmas. Something which you don't find in any other month ?

btw, Merry Christmas guys !

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Monday, December 24, 2007

The Word Puzzle

Professor Nova, in the summer of 1798 invented a famous puzzle which goes like this...

99 + 9 = 9 ?

Now, all I need is to give a hint and ask you to solve it, right ? Right.

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Wednesday, December 19, 2007

Mad Mathematician

"Your check this evening comes to $ 43.89 sir! " the waiter said.
"Nonsense, I'm on a diet ...100,4180" said the mathematician

The mad mathematician was so astonished over the bill that he has lapsed into number talk at the end of his reply. Can you find out what he means ?

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Tuesday, December 18, 2007

Baffling Series

Which letter will come next in the series.

W, L, W, C, N, _

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Monday, December 10, 2007

Cube Curious

A logician has two cubes on his desk with one number written on each face. Every day he arranges the cubes so that the front faces shows the todays date of the month. What numbers are on the faces of the cubes ?

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Thursday, November 22, 2007

Amazing arrangement

I have 8 cue sticks and while playing with billiard balls in three dimension, a strange question struck me. What's the maximum number of cue sticks you can put in an arrangement so that each of them touches every other.

As I started trying arrangements in incremental order, I amazed myself everytime, so when did I stop ?

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Monday, November 19, 2007

Uncommonly common

What do the following words have in common ?

catalog, passing, canape, medallion, berate, foxnews

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Wednesday, November 14, 2007

Saving Private Ryan !

"Take exactly one tablet of medicine A and one of medicine B each day, lest you will die from either disease or overdosage" were the exact words of the doctor. "These tablets must be taken together and you need all of these", the last sentence he said before parting.

"The doctor is gone but, i do have bottles for each" thought Ryan. He took one of the tablet A in his hand, while tilting the bottle of tablet B, two tablets accidentally fall out. Now there are three tablets in his hand. Because both types look identical, he cannot tell which is which.

Can you help Ryan save his dosage and his life?

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Wednesday, October 31, 2007

Odd one out !

Find the odd one.
Guinea pig, catgut, shooting star, shortbread, lead pencil, firefly, law dictionary, and dry cleaning.

* For the creative in you, can you make a small story with the all but one words ? ofcourse the smallest story will be the winner

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Monday, October 29, 2007

Something different ...

about this series. Can you tell me, what would be the next number ?

12, 14, 15, 20

and what is the value of x, if 1+x = b, b+x = c, c+x=d and d+x = 89

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Thursday, October 25, 2007

Donut for you !

A women have a donut, along with two "use and throw" knives. This time*, she decided to divide the donut among 5 children and you, only if you can help her do that?

* last time was different

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Wednesday, October 17, 2007

chicken "little" question

A chicken weighs ten pounds plus half of its weight. How much does it weight ?

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Monday, October 8, 2007

Cheaper by the dozen !

How will you divide 5 potatoes among 6 children ?


Thursday, October 4, 2007

Every one is doing ...

What is every one in the world is doing at the same time ?


Thursday, September 13, 2007

Send more money !

    S E N D
+ M O R E

Can you find the numbers corresponding to each letter to make it work ?

(or alternatively you can send me more money :) )

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Monday, September 10, 2007

Letters ...

What is SGEG ?

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Monday, September 3, 2007

Pairs of Gloves

In dark, how many gloves you must take from a drawer with 6 pair of black & 6 pair of white gloves, in order to be sure to get a pair that match?

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