If a wheel has 54 spokes, how many spaces are there between the spokes?

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different. How do you measure 45 minutes?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

A wealthy man lives alone in a small cottage. Being partially handicapped he had everything delivered to his cottage. The mailman was delivering a letter one Thursday when he noticed that the front door was ajar. Through the opening he could see the man's body lying in a pool of dried blood. When a police officer arrived he surveyed the scene. On the porch were two bottles of warm milk, Monday's newspaper, a catalog, flyers, and unopened mail. The police officer suspects it was foul play. Who does he suspect and why?

The dirtier I get, the whiter I look. Who am I?

I was born in a small house and I live in it all alone. No windows and no doors have been assigned to my house. The only way I can go out is by breaking through the walls of my house.

Who am I?

Can you fill the blank with the correct number?

6 30 870 756030 _____

How could a baby fall out of a twenty-story building onto the ground and live?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?