Misdirection jokes

There are 10 kinds of people in the world: those who understand binary and those who don't.

I asked the librarian if the library had books on paranoia. She whispered, "They're right behind you."

What's brown and sticky? A stick.

Knock, knock. Who's there? Cow says. Cow says who? No, silly, a cow says moo.

I asked the gym instructor if he could teach me to do splits. He said, "How flexible are you?" I said, "I can't make Tuesdays."