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

Why did the teacher lead a marine biology seminar?

Why do rocket scientists take everything so seriously?

What's another name for your iPhone charger?

What's a dog's favorite tooth?

Who should carry the bear mace when hiking with friends?

Nurse, how is that little girl doing who swallowed ten quarters last night?

How does a barber get to work?

What do a hot day and a doctor have in common?

What's grandma's favorite fruit?

Why doesn't Dracula have any friends?

What does Father Christmas suffer from if he gets stuck in a chimney?

Why do we never tell jokes about pizza?

What kind of cat has to crawl everywhere he goes?

Why did the cake strike out in baseball?