20 Questions was a popular radio and TV game show, based on the popular game “20 Questions.”
Here’s how the game works: One player is the Answerer. That person chooses a thing, but he doesn’t tell the others which subject he chose. The other players are Questioners. They each take a turn asking a “Yes” or “No” question about the thing the Answerer is thinking of. The Answerer answers each question. If the Questioner can guess what the thing is, he wins and becomes the Answerer for the next round. If no one guesses after 20 questions, the Answerer wins and gets to continue as Answerer for another round.