Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

The husband and wife were jogging in the morning. To match every two steps of the husband, the wife required three steps. If Both of them start with the here right foot. After how many steps do their left foot be together?

Replace the question mark with the correct number, given the pair of numbers exhibits a similar relationship?

? : 3839 :: 11 : 1209

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

Why do people go to bed?

Once while in his court, King Akbar asked Birbal to write something on a wall that makes one sad when read in good times and makes one happy when read in sad times.

He took only a few moment and wrote something that fit the requirements. What did he write?

What has lots of eyes, but can’t see?

A container contains 100 eggs. They can be either fresh or rotten. What is sure is the fact that there is at least one fresh egg in that container.

If you are asked to pick two eggs randomly from the container, at least one of them will be rotten.

Can you calculate how many eggs in that container are fresh?