I like this thread! I hope it doesn't get closed down.
Here's a couple more, one-liners are my favourite
1. What do you tell a woman with 2 black eyes? Nothing, she's already been told twice
2. How do you turn a fruit into a vegetable? Put a homosexual into a coma
3. Why do scottish men wear kilts? The sheep can hear zippers from a mile away.
4. What do Mt. Everest and Virginia Tech have in common? Both have a crazy slope and are -32 (This one is even a little offensive for my tastes!)