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?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

What does this rebus photo means?

How many letters are in the alphabet?

What question can you never answer yes to?

What does below chemistry rebus means?

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

In the picture that is attached with this question, you can find a square which comprises of four little squares inside it. Consider this square to be made with matchsticks. You have to remove two matchsticks such that only two squares remain instead of five.How will you do it ?