A classic and fun deduction game, it's like Sudoku for the whole family! Place three number cards (like Indian feathers) in an elastic headband, then don your headband. When it's your turn, draw a card, then answer its question.

Each question involves numbers you can see on your opponents' heads, like sums, odd vs. evens, etc. The questions on each card are ranked in difficulty, so you can vary the difficulty depending on the participants.

Using the answers to the question, you can work together until everyone knows his or her numbers—or you can race to deduce your numbers. If you guess wrong, you keep your three numbers but lose four points. If you guess right, you get ten points and three new numbers on your head. The first person to some set total wins.

What's That On My Head is no longer in production. You're bidding on a new, unopened copy of the last version printed—a definite collector's item! For more information, click here.