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?

John and his wife were living in a rural place. On a particular day, John's wife fell ill and he called the local doctor. When the doctor picked up, he said, "Doctor, my wife is ill. She might have appendicitis."

"This can't be possible! I took out her appendix two years ago myself," the doctor explained.

When diagnosed, John's wife was found to have appendicitis. How can this be possible?

Take away the whole and some still remain. What is it?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

A boy was at a carnival and went to a booth where a man said to the boy, "If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?

Find the next number in the series below

21 32 54 87 131 ?

Prove that twice of ten is the same as twice of eleven.

Can you name four days which start with the letter 'T'?

What number divided by 4 is the same as that number minus 4?

What can you hold in your right hand, but never in your left hand?