Suggested outline (Title of the question goes here)
Setup
The first few lines are likely to contain the setup necessary to setup the question. If the setup is short, Setup and Question can be merged into one section.
Question
The precise statement of the question. If there are follow-up questions, state them here too.
Additional material
It would be useful if you could add references, write subsections on related articles and outline strategies to attack the stated question.
Solution
When a problem is finally solved, the solution (or at least a sketch) will ideally be documented in this wiki.