A fairly basic toy, the 20Q takes all the hassle out of playing the 20 questions game 'animal, mineral or vegetable' and computerises it in a funky hand-held device. The game involves you thinking of an object, and the 20Q then asks you questions about it and tries to guess what you're thinking within twenty questions. It's a classic childhood game, but the 20Q device takes things up a notch.
Response buttons to questions include 'Unknown', 'Yes', 'No' and 'Sometimes'. The 20Q is not always accurate, but it is a hard little system to beat.