In the movie, a character was telling a story which others have to guess the reason for happening (like a puzzle): A woman goes in the library, opens a book, finds 50$ and kills herself.
Why? The answer was because she was the author who years ago donated the book and put the money in, so now years later finding the money means no one ever read her book.
Which movie or tv series is this scene from?
I have no idea, but I like that.