I think that's the official name for the types of puzzles that were found in the book "stories with a hole". remember those? The man was afraid to go home, b/c the man with a mask would be there. You have to ask yes or no questions to figure out the scenerio (turns out that they were talking about a baseball game and the man with the mask was the catcher).

I really like these games, when they are done right. Too often, they are done wrong. The answer should be the most simple, logical answer. When you hear the answer, you are supposed to think "oh, duh, why didn't i think of that".

I found a website that has a bunch of them. Half of them are good b/c they stick to keeping it simple. The other half have answers that are so far in left field, that i can't imagine it being satisfying. At that point, i might as well just answer the question with "well, this is in a parralel universe run by aliens and where the laws of physics don't apply".

Since the stories tend to have millions of possible answers (if you allow for such lunacy), it makes more sense to keep the standard as "the answer that is most simple and logical is right".