If eleven plus two equals one, what does nine plus five equal?

How many times in a given day, minutes and hour clock comes in a straight line ?

Can you solve below mathematical equation?

2^1234 - 2^1233

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

How many letters are in the alphabet?

On rolling two dices (six-sided normal dice) together, what is the probability that the first one comes up with a 2 and the second one comes up with a 5?

Why is Saturday stronger than Monday?

Mr Red Lives in the red house.
Mr Green Lives in the greenhouse.
Mr Yellow Lives in the yellow house.

Who lives in the Whitehouse?

In the attached figure, you can see a chessboard and two rooks placed on the chess board. What you have to find is the number of squares that do not contain the rooks. How many are there?

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?