Did you hear about the mathematician who's afraid of negative numbers?
He'll stop at nothing to avoid them.
What instrument did the plus sign play in band?
Where do frogs keep their money?
What do you call a fly without wings?
Did you hear that H2O opened up a bike shop?
What's black and white and goes around and around?
Why could no one recognize the sheep?
Which dogs love to study science?
If H2O is the formula for water, what is the formula for ice?
Where do kangaroos like to eat?
What job in the NFL® is most competitive for boats?