An interviewer says, "Tell me your choice. I can either ask you ten easy questions or one very difficult question. Think hard before you make up your mind."
"Ummm, I'd like one very difficult question."
"You have made your own choice. Good luck to you. Tell me which comes first: day or night?"
"The day, sir."
"And how did you reach that conclusion?"
"Sorry, sir. I can't answer that. I said I would only answer one difficult question."
http://www.amazon.com/When-Can-Start-Interview-Hired/dp/0988702800