The blog Abecedarian has a section dedicated to rhetorical questions, which the author kindly answers for us.
Q: Tired of totin' coffee pots from home?
A: Yes! We can hardly get through our front door, what with all the coffee pots.
Some of the answers even have quotes or links for research purposes. You'll find page after page of answers to questions that no one ever expected to be answered. Don't get too hung up on the dates listed for the posts, because no one is going to explain it. There's also a section called Rhetorical Answers, Questioned. It's a little different but just as entertaining. -via Nag on the Lake