Some hypothetical questions: Since history never stops, when does the future begin? What is a free gift? Aren't all gifts free? If a word in the dictionary were misspelled, how would we know? If toast always lands butter-side down, and cats always land on their feet, what happens if you strap toast on the back of a cat and drop it? Practice makes perfect but no one is perfect so why practice? If tomorrow is going to be twice as cold as it iss today, and if today is 0 degrees, how cold will it be tomorrow? When people say "Expect the unexpected," doesn't that mean the unexpected is expected? Isn't it scary to know what doctors do for a living is called "practice"? If everyone is a winner, then doesn't that mean that everyone is also a loser? What's another word for thesaurus? How do you throw away a trash can? If quitters never win and winners never quit who came up with "Quit while your ahead"? What happens if you get scared half to death twice? Why is it that when something is sent in a car, it's called a shipment, yet when it's sent in a ship, it's called cargo? How do you know when you're out of invisible ink? Where does the sky finally have its limit? Can you breath out of your nose and into your mouth at the same time? If a person with multiple personalities threatens suicide, is that a hostage situation? If psychics know the winning lottery numbers why are they still working? What is the speed of dark? Why do people ask if they can "borrow" a piece of paper? Do they really plan on returning it. If a pizza is round then why do they make the box square? If repetition is the key to learning, and repetition is a sign of stupidity, does that make learning stupid? If you put a slinky on an escalator, would it go on forever?