When NASA first started sending up astronauts, they quickly discovered that ballpoint pens would not work in zero gravity. To combat the problem, NASA scientists spent a decade and $12 billion to develop a pen that writes in zero gravity, upside down, underwater, on almost any surface including glass and at temperatures ranging from below freezing to 300 C.

The Russians used a pencil.

Bono is up on stage with U2 doing a gig at Wembley, when the song finishes he starts to slowly clap his hands and says into the microphone: "Every time I clap my hands a child in Africa dies!"

A voice near the front of the stage shouts to bono in a Irish accent: "Well stop fucking clapping then!"

Teacher: "If I gave you three rabbits today and five rabbits tomorrow, how many rabbits would you have?"

Little Johnny: "Nine."

Teacher: "That's not right, you'd have eight."

Little Johnny: "No, Teacher, I'd have nine. I already have one rabbit at home!"

A man is having problems with his Johnson which certainly had seen better times. He consults a doctor who, after a couple of tests, says, "Sorry, but you've overdone it the last 30 years. Your dick is burned out; you only have 30 erections left in your penis."

The man walks home (deeply depressed); his wife is already expecting him at the front door and asks him what the doctor said concerning his problem. He tells her what the doc told him. She says, "Oh no, only 30 times! We shouldn't waste that. We should make a list!"

He replies, "Yes, I already made a list on the way home. Sorry, your name isn't on it."