Why did the scarecrow win an award? Because he was outstanding in his field!
Parallel lines have so much in common. It's a shame they'll never meet.
I used to play piano by ear, but now I use my hands.
Why don't skeletons fight each other? They don't have the guts!
What did one wall say to the other wall? "I'll meet you at the corner!"
Did you hear about the mathematician who's afraid of negative numbers? He'll stop at nothing to avoid them.
What do you get when you cross a snowman and a vampire? Frostbite!
How do you organize a space party? You "planet"!
Why was the math book sad? Because it had too many problems.
I'm reading a book on anti-gravity. It's impossible to put down.