What's the most talkative class period in high school?

Why did the student eat their homework?

Knock, knock. Who's there? To. To who?

Which dogs love to study science?

What is an herbalist's favorite brand of peanuts?

Why did the frog starve?

Why couldn't the candy bars tell their children apart?

Why do biologists look forward to casual Fridays?

Which insect makes the best father?

Did you hear about the country giving free bread to its citizens?

What's a duck's favorite ballet?

What do you call it when a cat is not environmentally friendly?

Why aren't there any knock-knock jokes about the United States?

Why do birds fly south in the fall?

What's the most popular cat in New England?