Riddles, brain puzzles and mathematical problems

[BAndrew]

If you give me a minute I may be able to solve it.

EDIT: Actually nope, I don't think I can. Since we are the only people who post in this thread maybe you should just reveal the solution Chronofox.

Or teach us a bit about probabilities and statistics. If I am not wrong every riddle you post has to do with statistics and probabilities.