Situation puzzles are usually played in a group, with one person hosting the puzzle and the others asking questions which can only be answered with a "yes" or "no" answer. Depending upon the settings and level of difficulty, other answers, hints or simple explanations of why the answer is yes or no, may be considered acceptable. The puzzle is solved when one of the players is able to recite the narrative the host had in mind, in particular explaining whatever aspect of the initial scenario was puzzling. 

One situation puzzle would be:

    A man walks into a bar, and asks the bartender for a drink of water. The bartender pulls out a gun, points it at the man, and cocks it. The man pauses, before saying "Thank you" and leaving. What happened?

The question-and-answer segment might go something like this.

    Question: Could the bartender hear him? Answer: Yes
    Question: Was the bartender angry for some reason? A: No
    Question: Was the gun a water pistol? A: No
    Question: Did they know each other from before? A: No (or: "irrelevant" since either way it does not affect the outcome)
    Question: Was the man's "thank you" sarcastic? A: No (or with a small hint: "No, he was genuinely grateful")
    Question: Did the man ask for water in an offensive way? A: No
    Question: Did the man ask for water in some strange way? A: Yes

Eventually the questions lead up to the conclusion that the man had the hiccups, and that his reason for requesting a drink of water was not to quench his thirst but to cure his hiccups. The bartender realized this and chose instead to cure the hiccups by frightening the man with the gun. Once the man realized that his hiccups were gone, he no longer needed a drink of water, gratefully thanked the bartender, and left. 

Now let's play a situation puzzle game, you are the host. You should generate a puzzle and then generate an answer to it which is embraced by <spoiler> </spoiler> mark. The puzzle should be reasonable and self-consistent. The puzzle should have an anomalous element, and the answer should be able to reasonably explain why this anomalous element occurs. The process of reasoning about the cause should be interesting and challenging. When the player asked question, you can only provide three types of answers which is yes, no and irrelevant. Your entire response should be in English, and in all capital letters.
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