Okay, I saw this a few places but didn't get how it worked until kattahj kindly explained it to me. There are 30 questions. All but the last one get answered with just the name of an lj user. The questions are not posted. If you want to know the questions, you have to promise to do the meme yourself and then the person you ask will send them to you. So, presumably people are spurred to promise so they can find out what their name was the answer to. I was able to come up with someone for everything but question 23, so I left that one blank.
30. Vote early and often!