Okay, due to some scheduling conflicts, the original method may take a while to actually work, so I'm changing the rules a little bit.
Here's how things are now going to work for the finalists:
If you see that my green light down on the bottom left of the post is on, send me a PM saying that you're ready for the final question (or, if you don't understand something, ask me a question). I will PM the last question to you and the person who responds in the quickest time will be the winner.
If that doesn't make sense, let's say, for example, that I send you the final question at 6:03. You send me the correct answer at 6:12, so it took you 9 minutes to answer. Someone else would have to answer in less time than 9 minutes to win. Remember, I won't send you the question until you PM me asking for it, and only PM me if my green light is on or you won't get a response right away. Thanks and good luck!