Why do biologists look forward to casual Fridays?

What do you call it when CO2 goes out to dinner?

Why do all the planets get along?

What is the opposite of coffee?

Why do track athletes never give up on anything?

Why is golf harder than baseball?

What do geometry teachers eat for dinner?

Why couldn't the couple get married at the library?

Why were the teacher's eyes crossed?

What do you call a sheep with no legs or head?

What's a mom's favorite headwear?

What happened to the chicken whose feathers were all pointing the wrong way?

What is the most appropriate holiday to have a baby on?

What did the light bulb say to the lamp on Valentine's Day?

What is a math teacher's favorite sum?