How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

I am sure no one can have two things for dinner. what are they?

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

What jumps when it walks and sits when it stands?

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

Solve the mathematical equation in the picture below.

The day after tomorrow will be three days before Tuesday. Can you find out what is today?

Why Aeroplane windows are round?

You are given with the following sum. Each of the letters can be decoded as a digit. If we tell you that D = 5, then can you solve it entirely?

DONALD
+GERALD
=ROBERT