What's the most popular sport on the Fourth of July?

Why do grandparents smile all the time?

What did the baby light bulb say to the mommy light bulb?

Where does a scientist wizard work?

What do soccer referees send during the holidays?

How do you make a cow float?

What does a lion call an antelope?

Which dogs love to study science?

What do you get when you cross a rabbit with shellfish?

Why did the man bring his swim trunks to the bar?

Who did the monster take to the Halloween dance?

Why do trees try new things so often?

I stayed up all night to see where the sun went.

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

What do you call a cow that can play a musical instrument?