This question already has an answer here:
One of the most prominent reasons why questions are closed is the fact that people are posting e.g. home work excercises without any additional info on where they are struck, and what they tried.
So far, these kind of questions are either closed as "This question is missing context or other details", including not showing your own work, but also sometimes as "unclear what you're asking".
Would it be a good idea to promote "You're not showing effort" as a high-level closing reason, rather than having it in the fine print.
This older question was asking the same thing and I was wondering if there were any recent developments in this.