Good Jokes

Joke: What do you do if you are asked to add the numbers from 1 to 100?

Joke: Knock knock!
Who's there?
Britney Spears!
Knock knock!
... Who's there?
Oops I did it again!

Joke: Math teacher: You can't use y to represent a single point!
Student: Y-naught?

Joke: What did Jon do when his dog ate his science book?

Joke: What is black and white and green and black and white?