A man lives on the fifteenth floor of an apartment building. Every morning he takes the elevator down to the lobby and leaves the building. In the evening, he gets into the elevator, and, if there is someone else in the elevator, or if it was raining that day, he goes back to his floor directly. Otherwise, he goes to the tenth floor and walks up five flights of stairs to his apartment. Can you explain why he does this?

On a bus, there is a 26-year-old pregnant lady.
A 30-year-old policeman.
A 52-year-old random woman.
And the 65-year-old driver.

Who is the youngest?

Solve the equation in the image by looking at the pattern closely.

A train full of passengers goes through a tunnel. When the train comes out from the other end, there is no single person on the train.

How did it happen?

Can you solve the below tricky visual equation?

The more it dries, the wetter it becomes. Can you tell what it is?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

I look at you, you look at me, I raise my right, you raise your left. What am I?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

It is always ahead of me yet I can never see it. What is it?