Answer:
What's get sharp the more you use it
How did Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune make up the solar system?
Everyone claims to know a way to stop these involuntary contractions but none of them work.
What starts with a "T", ends with a "T", and has T in it?
Why did the coffee file a police report?
When is it bad luck to see a black cat?