Box Roulette:There will be 15 rounds where there will be exactly the same number of boxes as contestants.Each round , constestants will pick a box (and other can't pick an already picked box).Each box will have a paper , except for one box which will have nothing.If you get a paper , you are still in.If you get an empty box , you are out.After all 15 rounds , whoever is the last person wins.The empty box will be random.