How much room do fungi need in order to grow?

Did you hear about the mathematician who's afraid of negative numbers?

Why did the scientist hang the periodic table posters?

Who is the saddest person at McDonald's®?

Which celebrity is always prepared for cereal?

What do you call a pig with no clothes on?

What do geometry teachers eat for dinner?

What's a horse's favorite car?

Why did the tree go to the dentist?

Why is it hard to ski on fresh snow?

What did the bicycle call its dad?

How do vampires get around on Halloween?

Why do bees gossip?

What kind of haircuts do bees get?

What should clumsy people avoid when hiking?