What do a dog and a tree have in common? Their bark.
What do you call a Roman solder with hair in his teeth? A Gladiator.
My wife asked why I didn’t buy her flowers. To be fair, I didn’t know she sold flowers.
What's the difference between a hippo and a Zippo? One is really heavy and the other is a little lighter.
What do you call a blind dinosaur? A do you-think-he-saw-us?