A woman lives in a skyscraper thirty-six floors high and is 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?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

You need to arrange three 7 and mathematical symbols to form number 1?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

Who is that with a neck and no head, two arms and no hands? What is it?

Every words stands for unique digit that makes the arithmetic equation true

SEVEN + SEVEN + SIX = TWENTY.

What are the digits ?

You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?