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

What did the biologist wear on his big date?

How do amoebas make calls?

What's black and white and red all over?

What do accountants tell their children to do to fall asleep?

What do you call a horse that plays the violin?

Why were the teacher's eyes crossed?

What kind of money do fishermen make?

Why did the person let a fish perform surgery on them?

Why are cat owners so good at tipping?

What was the first animal in space?

What is a golfer's favorite bird?

Where does the president keep his razor?

What is a pig's favorite ballet?

What do you call the successful dog detective?