A and B have a certain number of chocolates with them. If B gives one chocolate to A, they will have an equal number of chocolates. But if A gives one chocolate to B, then A will be left with half the number of chocolates that B has.

Can you find out the number of chocolates they have right now?

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?

In a mathematical quiz, you are asked the following question:

Use three 9s in a mathematical expression without dividing or multiplying to form the number one.

Can you answer the question?

How is the moon similar to a dollar?

Before Mount Everest was discovered, what was the highest mountain in the world?

What always comes into a house through the keyhole?

Which point will the car reach to go out?

What brings you down but never up?

What goes up but never comes down?

Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?