20Q is an electronic mind-reading gizmo. First you think of an object or concept, and it begins with the Animal-Mineral-Vegetable-Other question. It then asks you a series of seemingly irrelevant questions such as "Is it flat?" and "Is it heavier than a pound of butter?", and you can answer with the "Yes", "No", and "Maybe" buttons. Miraculously it figures out what you're thinking, more often than not! Try the online version at 20Q.net.