Wow, the first question is wrong. 4, 8, 16, ? Obviously they're going for the dumb answer of 32, but they really need to take a logic course. I actually used this same example for a critical thinking course I gave. The class was given infinite guesses to find the pattern. One correct answer is 7,893 (any set of increasing numbers was a valid pattern). I doubt I'll be playing this game very long, unfortunately.