Good Jokes

Joke: Knock knock!
Who's there?
Pasture!
Pasture who?
Pasture bedtime, isn't it?

Joke: Mathematician: Hey girl what's your sign?
Girl: I'm a Libra... Why?
Mathematician: I could have swore your sine was π/2, because you're the one.
Girl: No...

Joke: Two chemists walk into a bar and the first one says, "I'll have some H₂O."

The second says, "I'll have some water too. Why'd you say 'H₂O'? We aren't at work."

The first chemist excuses himself and weeps in the bathroom.
His assassination plot had failed.

Joke: Yo mama's so fat, she was born with a silver shovel in her mouth.

Joke: Organic chemists study carbon compounds.
Biochemists study carbon compounds that crawl.