So You Know Maths

Can you think of a non prime number so that all its divisors is visible in the number itself ?

For example divisor of 13 is 1 and 13 so it satisfy the first condition but its a prime so not the second. You have to find a non prime. Your time starts now...

The Odd Rafting Trip

There are 8 people that need to cross a river on a raft. Only 2 people can be on the raft at a time. There is the Mom, Dad, two sons, two daughters, a policeman, and a criminal. The Mom can't be left alone with any of the sons, for she beats them (its just the rules, go with it), and the Dad can't be left alone with any of the daughters (same reason). The criminal can't be left alone without the officer or else he hurts everyone. Only the Officer, the Mom, and the Dad know how to operate the raft. Get Everyone Across.

- Bren

House Of Night

A woman walked to her apartment door. When she entered there were two men laying on the floor dead. They both had bullet wounds in their chests. And there were 53 bicycles sitting around them. What happened?

- House Of Night

How many planes ?

If there are 66 people in each plane, there are 10 full planes and there are 630 passengers

Is this possible?

- matthew hinds

How did he survive?

A man watched a horror movie in which there was a big pile of dead bodies, he had a drink and he noticed that there was something else in the cup besides the drink, he thought it was nothing. but when he went outside, he fell unconsious, he found himself on top of a big mountain, he fell off and died, he woke up in hospital a day later

how did he survive?

- matthew hinds

A zebra?? and water??!!

There are five houses.

The Ukrainian drinks tea.

The green house is immediately to the right of the ivory house.

The Spaniard owns the dog.

Coffee is drunk in the green house.

An Englishman lives in the red house.

Kools are smoked in the yellow house.

The Old Gold smoker owns snails.

Milk is drunk in the middle house.

An Englishman lives in the red house.

The Norwegian lives in the first house.

Kools are smoked in the house next to the house where the horse is kept.

The man who smokes Chesterfields lives in the house next to the man with the fox.

Kools are smoked in the yellow house.

The Japanese smokes Parliaments.

The Norwegian lives next to the blue house.

The Lucky Strike smoker drinks orange juice.

Now, if it is given that a resident drinks water and the same OR another has a zebra, which one is it?(or which ones are they)

PS: I hope this is good enough... the standard has gone down a little.

Compass Problem

How can you draw an Oval on the paper using a compass ?

A fox, hen and a basket of corn

This is a very old logic puzzle. Maybe in will be fun for some newbies.

A man had a fox, a hen and a basket of corn. He came to a river. There was a canoe there, but he could only take himself and one other thing in the canoe. If left unattend, the fox would eat the hen, or the hen eat the corn.

How did he manage to get himself and all three items across the river?

Equation

What is one thing you would do to make this question right?

81 X 9 = 801

-- Teddy Kumar

Cheesy

What Cheese is made backwards?

- Amber Lewis

Minus One

What is the square root of '-1'?

- Josh Mudie

No Kill

A woman shoots her husband. Then she holds him underwater for five minutes. Then finally she hangs him. Later they go out and enjoy a wonderful evening together. How is this possible?

- Ryan Lane

where would I eat my food

after 7 hours and fifteen days where would I eat my food

Warning: puncuation omitted.

T Shape Number Grid

if you have a ten by ten grid and you get a t shape of numbers out like this:

1-2-3
--12--
--22--

The t number is the number of the bottom of the t (22)
The t total is all the nubers in the t added together (1+2+3+12+22=40)

find the nth term (to get the t total when you are given the t number)

then do the same with a 9 by 9 and/or 11 by 11 grid and try to find the nth term to get the t total from the t number from any grid.

-- matthew hinds

Next Number

Solve for the next number in the series:

1 = 7
2 = 16
3 = 27
4 = 40
5 = 55
6 = 72
7= ?

- Bobby Braun

Vicar's Dog

Why did the vicar only want a black dog ?

Mega Hard Riddle

There is more than 1 but 1 is too many but if you have too much you don't have any

Alice and Bob

Today is Alice's birthday. She turned 24. Alice is twice as old as Bob was when Alice was as old as Bob now. How old is bob now ?

Free Fall

Brad stared through the dirty soot-smeared window on the 22nd floor of the office tower. Overcome with depression he slid the window open and jumped through it. It was a sheer drop outside the building to the ground. Miraculously after he landed he was completely unhurt. Since there was nothing to cushion his fall or slow his descent, how could he have survived the fall?

- Chris Azarian

Hoover Dam Bridge 2

This is a continuation of the previous item.

A steady convoy of cement trucks are dumping cement into two
hoppers that feed two pumps. The pumps put the wet cement flow
into an 8 inch diameter pipe. The pipe runs almost straight
down 300 foot to the arch footing. The pumps run at 200 psi.

How much cement (in cubic yards) will be pumped into the reinforced
form in the 12 hour period from dusk to dawn?

Hoover Dam Bridge

Last week, I saw a extreme construction project called the Hoover Dam Bridge.
At both ends of the new bridge in the walls of the canyon were massive amounts of
concrete footings to mount the base of massive arches. They called each of these constructs "Million Dollar pours. During a one night period the block had to be poured into reinforced steel before the daylight so the desert heat could ruin the "pour". The concrete would be delivered by a continious stream of cement trucks and pumped down the wall 300 feet through 8 inch pipe. Twice the announcer said the amount of concrete poured in this one night was a cubic mile.

Could this be possible? One cubic mile of concrete? In one night?

Poles and Fence II

If the average distance between post is 15 feet.
and the necessary area per cow is .4 cows per acre.
How many cows could he have?

Reference previous question, "Poles and Fence"

Turtle's Phone

What kind of phone a Turtle have ?

Poles and Fence

A farmer built a fence around his cows, in a square shaped region. He used 27 fence poles on each side of the square.

How many poles did he need altogether ?

One Billion Pound Raffle Part 3

Alright,
now, if the rest of the rules are the same except that this time, the marbles will be replaced, which place in line is most likely to win the One Billion Pound Raffle??

Octagon Problem

Archimedes looked into the Octagon and immediately told that it is possible to create a perfect square out of it, if you cut it into five pieces and re join it.

Can you do that ?

Bottle Trouble

So Mr. Ketuchky decided to double all the dimensions of a One Litre bottle, can you tell me what is the volume of the new bottle ?

Largest Number - III

What is the largest number you can make with one 1.

Trick of Mind?