John was visiting his friend Jacob. He found out that his friend's wife had just killed a burglar in self-defense.
John asks Jacob about what happened and he told that "His wife was watching television when suddenly the bell rang. She thought that it is her husband Jacob but she found the burglar who attacked her instantly and she got so frightened that she killed the burglar immediately with the knife.
John asked the police to arrest his friend's wife. Why?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

What is more useful when it is broken?

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?

There is a place where if I stand up straight, I will still be considered sideways.

The more it dries, the wetter it becomes. Can you tell what it is?

Which number should replace the question mark?

By what process could you make a 'Tea-Table' into food?

Assume the given figure to be a delicious doughnut. Yes, now you can concentrate more on the puzzle. So you have this delicious doughnut in your refrigerator when your friends come knocking at the door. There are eight of them. Now you have to make three cuts in this doughnut so that each one of you nine people can enjoy a piece of it. Neither you nor your friends would mind the size of their piece as long as they are getting it. How will you do it?

John was piloting a plane behind a car but was never able to overtake it. Why?