Are puzzles where you give hints that lead to a song, a movie, or a book on topic? For example, if there was a puzzle for Harry Potter, it would look like this:
Once there was a little boy,
Who was nearly killed when he was young.
At a new school, a version of the three musketeers was made,
Although there rivals were hard to beat.
First they guard a precious artifact,
After kill a dangerous monster
Then they meet someone who is half human
After that one brings back a villain
... And so on. Is this an acceptable type of puzzle? Or is it off topic? Even if it belongs to a different site, it is still off topic, so....