Ok, so I found this site: http://tweetcracker.com/. Essentially, people just tweet 10 digit numbers in hopes it is the correct number (like lottery, except free).
I heard that if you took all the numbers in the world (e.g. from bank statements, newspapers, stocks, sports scores, etc...) that you would get a logarithmic distribution, with "1" being on top (p=30.1%) and "9" on bottom, consecutively decreasing logarithmically. (Benford's Law)
I also heard that if you averaged all the guesses from a game of "guess the number of gum balls to win a prize" that you get a bell curve distribution and the correct answer is usually very close to the mean (average). This at least uses spatial skills, while Benford's Law and my tweetcracker situation are essentially totally random.
I thought about taking all the guesses and averaging them, but I suppose I would get some reflection of Benford's Law? I might just write a java program to process the data for me (just for the hell of it). I was just wondering what more experienced mathematicians thought about this? Any possible ways of narrowing down solution besides brute force? Those were all the ideas I could think of, intriguing, though randomness is a pretty fundamental principle so I guess if someone somehow "broke" it, then lotteries would not be around!! :) Nevertheless interesting, haha.