Pictures:

What can you say about a teacher without any students?

He's in a class all by himself.

1133

What is Fidel Castro saying?

Have a Havana banana with a bandana in my banana republic.

3140

What is an exact duplicate of a bicycle called?

A cyclone.

626

What type of tree is this?

A Pair Tree

1506

What did the surgeon say when the patient asked if he could administer his own anesthesia?

Sure, knock yourself out.

432

Is this cat anything special?

Yes - it's The Cat in the Hat.

2062

What do you say when you see an elephant?

You mongous!

1527

Why was Jim happy that after dieting he fit into his old clothes?

He knew that when it comes to dieting, it's survival of the fit-est.

2954

What do you call a student with a private tutor?

He's in a class all by himself.

35

What did the children say when given these?

Ooh...goody, goody gumdrops!

1283

What are commas, periods, and question marks that are used in puns called?

Pun-cuation.

2180

Why was it so easy to reverse-engineer this dessert recipe?

It was a piece of cake.

1261