What's the difference between a novel and a book?

If nobody buys a ticket to a movie do they still show it?

Why doesn't glue stick to the inside of the bottle?

Does a man-eating shark eat women, too?

How can you tell when it is time to tune your bagpipes?

How do you get off a nonstop flight?

How do you know if honesty is the best policy unless you've tried some of the others?

How do you write zero in Roman numerals?

If you have a cold hot pocket, is it just a pocket?

Why is the show called Unsolved Mysteries? If they were solved they wouldn't be mysteries.

Do penguins have knees?

Why is it said that an alarm clock is going off when really it's coming on?

What are imitation rhinestones?

What do batteries run on?