20 Questions

20 Questions is a game made popular from the years of radio entertainment.

The answerer chooses a subject and the questioners get 20 chances to ask questions to reveal the answer. The answerer can only give yes or no answers. This is where the infamous, “Is it bigger than a breadbox?” question originated!

The person who figures out the mystery is the winner. This is a great exercise in deductive reasoning and creativity!

http://en.wikipedia.org/wiki/Twenty_Questions