Why were the kids so happy when the power went out at school?

Because they were de-lighted.

I once heard a joke about amnesia...

But I forget how it goes.

What does a hungry clock do?

It goes back four seconds.

I'm glad I know sign language.

It's become quite handy.

What's a criminal's best asset?

His lie-ability.

It's not that the guy didn't know how to juggle...

He just didn't have the balls to do it.