It's always darkest ...

It's always darkest just before dawn.  So if you're going to steal the neighbor's  newspaper, that's the time to do it.

http://www.joecasaletto.com/jokes/deep.htm 

Do infants enjoy...

Do infants enjoy infancy as much as adults enjoy adultery?

http://www.jokes-db.com/jokes/deep-thoughts-jokes

Why do we say ...

Why do we say something is out of whack? What`s a whack?

http://www.jokes-db.com/jokes/deep-thoughts-jokes

If people from Poland ...

If people from Poland are called Poles, why aren`t people from Holland called Holes?

http://www.jokes-db.com/jokes/deep-thoughts-jokes

If you take an Oriental ..

If you take an Oriental person and spin him around several times, does he become disoriented?