One player reads out a question to the others. They each write down a made up, but believable answer and hand it to the person who read the question. This person then reads out the REAL answer and all the made up answers, in random order.

The others must guess which is actually correct. You score moves on the board for each player who is conned into believing that your made up answer is the real one, as well as for choosing the real and often unbelievable answer.

It sounds simple AND IT IS!