In these puzzles someone describes a scenario, and the others will have to find out the whole story.
You may ask questions that may be answered by "yes" or "no". Alright?
May I suggest that if you already know the story, do not tell it right away but let the others have a guess?
I will start with my favourite one:
A man walks into a bar and asks the barkeeper for a glass of water. The barkeeper pulls out a gun and points it at the man. The man says "Thank you very much" and leaves the bar.