This progression of questions and answers takes lines of logic to a whole new level. Players: 4 or more
To get started: Have each player write her name and a question she wants to "ask the oracle" at the top of her piece of paper -- the sillier the question, the funnier it will be in the end.
To play: Each person passes her paper to the person on her left. That person answers the question handed to her -- keeping it logical yet silly, if possible -- then folds the page so only the answer is visible. She then passes it to the next player, who writes a question that suits the visible answer. This player folds the paper so that only her question is visible, and so on. Repeat this pattern until everyone has her paper back in hand. Now for the payoff: have each person take a turn reading aloud her original question and the last answer, then the chain of reasoning.
Our testers' twist: Give everyone a theme for the first question and see how similar -- or not! -- the lines of logic are.