Answer:
What did the chewing gum say to the shoe?
What has a tongue but no mouth?
What doesn't exist, but has a name?
Your mother's brother's only brother-in-law is asleep on your couch. Who is asleep on your couch?
What did Physics say to History when they are arguing?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?