I don't really care about this thing, but will express my thoughts here.
Obviously better questions should be asked when he was answering them. You would know so much by know. "Were you not born in america?" followed by "Were you born in America?" is just stupid. Also his thoughts on presentation and effect. Who would say that presentation doesn't enchance an effect?
Next, it clearly won't be Andrei or anyone that has been seen on here. It will probably be someone that has been hidden.
Balloons could be a big clue. He has added them to the teasers, it's in his avatar and he said he does balloon magic as well. It is also a person that likes riddles. David Blaine come to mind, with his book's fantastic treasure hunt, but it is unlikely, because he is so famous.
I think it's George Bush. Hey, the man needs a new job!
-Sebastian