Why do Chinese men eat more rice than Japanese men do ?

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?

What does an Island and the letter T have in common?

Can you name an animal whose killing cannot be performed without spilling your own blood?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

What can jump higher than a building?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

Can you solve the below tricky visual equation?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?