There was a man he lives in a hotel each morning he presses the first floor button each evening if there is a person in the elevator he asks him to press the 10 floor button if there is no one in the elevator he takes the stairs why.

What has a bottom at the top?

I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What am I?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

How many letters are in the alphabet?

There was a blind man. He had four socks in his drawer either black or white. He opened it and took out two socks. Now the probability that it was a pair of white socks is 1/2.

Can you find out the probability that he had taken out a pair of black socks ?

What can you deduce from the following BrainBat?

CRY
LMKI

What has one eye, but can’t see?

Solve the following series:
AZ, GT, MN, __, YB

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?