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?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

What is the word or phrase?

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

A man started to town with a fox, a goose, and a sack of corn. He came to a stream which he had to cross in a tiny boat. He could only take one across at a time. He could not leave the fox alone with the goose or the goose alone with the corn. How did he get them all safely over the stream?

What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000?

How many letters are in the alphabet?

What will you call your mother's brother's brother-in-law?