Chance of a Century

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

Designs of Nature

When I look at sun and moon I see orange and white Circles, when I look at mountains I see scalene Triangles. When I see a shooting star I see a straight line. The designs of nature are so accurately geometrical !

Can you think of three other natural items which are geometrical?

About Finding Things

Why are the numbers on a calculator and a phone reversed ?

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 ?

Triangle Trivia

You have a normal paper in which a triangle is inscribed.



For a circular piece of paper, the lines along which you can fold it "in half" (with half the area on each side) are precisely the lines through the center. Triangles are different and folding it exactly in half won't be that easy, even for an expert geometrician like you, would it ?

Do let me know how you do it, and don't assume anything !

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

My uncle

My Fathers brother knows the score of the game before it even starts how could this be?

1996

complete the following maths problem by filling the blanks using only the symbols listed afterwards:

1__9__9__6__=10

symbols: * , / , + , - , ( , ) , ! , squareroot

you may use more than one symbol per space provided eg 1 multiplied by the squareroot of 9 and the numbers must remain in their given order, enjoy and ill post answer in... 5 days

daniel

7 Letter Words Have 7 Letters

As far as I know, there is only one 7 letter english word that contains every vowel. Anyone?


Here is my hint, and I must admit, it is a clever one.......

Skyward, elegantly quaking, until our influence attacks.

Funny as Tautonyms

Tautonym is a word or name made of two identical parts or repeated words, example TOMTOM, MAMA, BYE-BYE. Do you know any Tautonyms ?

Normally a Tautanym is pronounced same word twice, but there is a special Tautonym _ _ _ _ _ _ _ _ which is pronounced differently. But ofcourse, you never listened to your English teacher, did you ?

Old Coin

A self proclaimed expert on the value of rare coins goes to a collectors exhibition. There, he sees, admires, and finally purchases a single silver coin for one million dollars. On the coin's face was the head of some dude, and the tail, a leaf kinda thing. What seemingly made this coin so valuable was the date etched on it: 210 B.C.
He returns home with his new prize, sits on the couch and relishes in his newest and finest investment; only to realize, after some logic, that he has been bamboozled.


How does he know?


CodyC

Homegrown Riddle

I looked up, down, and all around.
I peeked above, beyond, but it was gone.
Looked for it's bold word , but so absurd.
For now I don't know, if I should go.

It was there, then, but not again.
Those pesky kids struck, with pick-up truck.
Now at their home, it lies, and drivers die
Without the one sign, to keep them fine.


What's this about?

CodyC

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?

Beautiful Geometry

Sir Ramanujan said "The sides of the triangle is given. You have to find out the radii of the three circles inside the triangle, the three circles touches each other as well as each touches two side of the triangle as shown in the figure."



Take a = 507,
b = 375 and
c = 252

"You have got all of the weekend and the week after to solve the problem"

Can you ?

Shrink Word

A Shrink Word is similar to change word* except that in each step , either you reduce a letter in the word or change a letter. For example PIN becomes IN which then becomes I

Can you Shrink the word T H A N K S


* example of a change word

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 ?

Odd Sequence

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

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

Lions and Crows

Pride is to Lions as ____ is to Crows ?

Would you know ?

Força !

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

Coin confusion

How can you arrange 10 coins into 5 rows of 4 coins each?

Word Puzzle

Which English 6 letter word can form 7 other words without rearranging the order of any of the letters?

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?

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 . . .

The Fast and the Furious

There are two men that meet in Chicago and both saw each others car and thought that both had a faster more powerful car; so they both decide to race cross-country and see who can travel the most distance by the time they meet.

The men start off on the east and west coast, so the men call each other and told them they were both there. So the one on the east coast started off and 120 miles per hour, and the other starts off at 100 mph, assuming they didn't have to stop to fill up for gas, where do they meet?

Rendezvous

A Car in Los Angeles starts toward San Diego on I-5 South at 40 miles an hour. Fifteen minutes later a motor bike in San Diego starts towards Los angeles on I-5 North - 120 miles away - at 55 miles an hour.

Which vehicle is nearest to Los Angeles, when they meet ?

Magnetic "Perpetual" Motion

In attempts to invent a "perpetual motion" machine the magnet and its power have played a role of no mean magnitude. Ill-starred "perpetual motion" machine inventors have tried might and main to apply the magnet to this end. Here is one such project described back in 17th century by Englishmen John Wilkins, the Bishop of Chester.

A Powerful magnet A is placed on the top of the pillar leaned against which is two inclined grooves M and N, one above the other. The upper groove M has a small hole C at the top, while the lower groove N is curved.



The inventor claimed that the arrangement would operate as follows. A small iron ball B was to be placed on the upper groove. Attracted by the magnet A, it ought to roll upwards. On reaching the hole, it should roll down, be carried up by inertial along the curve D, and find itself again on the upper groove M, from whence, again attracted by the magnet, it should again roll up and drop through the hole, roll down and on to the upper groove, ad infinitum.

This the inventor conjectured, would produce "perpetual motion".

What do you think ? Will it ?

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 ?

Puzzle

What number do you have to take out to get another number?

STEVWEENTNTYEOENNAENDAANQDUATATHIERRD

Clock Chime

A tick-tock clock chimes every hour on the hour, and once each quarter hour in between. If we hear it chime once, what is the longest we may have to wait to be sure what time it is?

What is it?

"You throw away its outside, cook its inside, eat its outside, and throw away its inside."
What is it?

- pramsay13

Puzzle

Remove five letters from the word below to make the name of a fruit?

PFIIVNEEALEPTPTLERES

-pramsay13