The Brick Joke
Once upon a time, there was a man who wanted to build a house. But, being a little eccentric, he wanted to build the house using only 99 bricks. So he went to the hardware store and said, "Hello, I'd like to buy 99 bricks."
The owner of the store told him, "I'm sorry, we only sell bricks in quantities of 100."
"Can't you cut me a deal or something?" the man asked.
"Nope, sorry," replied the owner. So the guy bought 100 bricks.
He took the bricks back to his lot, and he built a house using 99 bricks. Now, if you do the math, 100 minus 99 is 1, so he had one brick left. And he took that brick, and he just chucked it, way up in the air!