T.. suggested as a comment on this question that we use a
solution-request tag for certain questions. The resulting conversation has been transferred here:
This site needs tags like
exercise, etc (separate from
puzzle, which has other connotations) but I can't think of a canonical name. In this particular case,
solution-requestfits but a more general tag for posing problems would be useful. --T..
@T..: I would interpret any question not tagged
solution-request.If you or someone else who agrees on the need for such a tag can collect a list of fitting questions, and a brief explanation why, please put it on meta. --Kaestur Hakarl
Posting a specific mathematical exercise, with a request to display a solution (a calculation, proof, or reference to such), is a "solution request". The majority of MO/math.SE questions are more open-ended and do not request such definite answers. Examples: "how do I compute De Rham cohomology", "could P=NP be unprovable", "how to see field extensions as covering spaces", etc. –- T..
I've made this community wiki so that someone who supports the addition of such a tag can add a list of questions it belongs on.
I also want to point out that during the beta, I think users should feel free to create tags for questions when they feel it is appropriate, but when there is disagreement, it's better to have a discussion on meta to avoid a ton of meta-y comments on the main site diluting the math. Since the comments have been reproduced here, I've deleted them on the original question.