Sure, here are a few jokes for you:

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.

Did you hear about the mathematician who's afraid of negative numbers? He'll stop at nothing to avoid them.

Why don't scientists trust atoms? Because they make up everything!

I used to play piano by ear, but now I use my hands.

What did one wall say to the other wall? "I'll meet you at the corner!"

Why did the bicycle fall over? Because it was two-tired!