Rectify the following equality 101 - 102 = 1 by moving just one digit.

You bought me for dinner but never eat me. What am I?

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?

A man hijacks an aeroplane transporting both passengers(8 of them) and valuable cargo. After taking the cargo, the man demands nine parachutes, puts one of them on, and jumps, leaving the other eight behind. Why did he want eight?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

There is something which is always coming but never arrives?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

How can one talk without saying a single word?

What always comes into a house through the keyhole?

Why is it very easy to weigh a fish?