Do we allow questions that are looking for trivia or fun-fact answers in JL&U? Some example 'fun' questions from English L&U that are not closed by the community:
- Awkward sounding but grammatically correct sentences?
- Hardest tongue twister
- What is a memorable no-pun-intended sentence you have used?
For nihongo, maybe something like asking for longest anagram (e.g. たなかのかなた)? Or find the author and title of the haiku that contains a specific line?
OK, not OK or 50-50?