A woman lives in a Tall building thirty-six floors high and served by several elevators which stop at each floor going up and down. Each morning she leaves her apartment and goes to one of the elevators. Whichever one she takes is three times more likely to be going up than down. Why?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

What number do you get when you multiply all of the numbers on a telephone's number pad?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

A person is found murdered in his Chamber. When the crime scene is investigated, the Investigator find out that there is a calendar on which the victim has written a few numbers with his blood. The numbers are 4, 11, 11 and 4.

There are four suspects in the murder, John, Jacob, Anna and Lee. Can you find out who is the murderer?

Move three sticks of the spiral below to form a square.

What word is represented by this rebus?

I know a nine-letter word having only one vowel.
Do you ?

What goes through cities and fields, but never moves?