Why can't I add an answer to my own supposedly "non-constructive" question?
3426
What is a "closed" or "duplicate" question?
25926
Why can't I accept two answers for the same question?
157365
What are limitations on self-answered questions?
72131
Is a StackExchange question only valid if it it's your own problem you're describing? If not, does this still apply in beta?
47093
Unable to edit my response to a locked question
88434
Why is "improve this question / answer" shown to anonymous users instead of "edit"?
41718
As a new user without much rep, what should I do if someone else has already asked a question I have, but it has no answers?
85905
Clarification for non-answers
116563
Where to post a "canonical answer" when it's not in response to a specific question?
14387
What can be done to improve moderation of self-answered questions?
55871
Can I ask a technically solved question for better advice?
64690
Should "Closing this question because I didn't get an answer" posts be flagged as "not an answer"?
24386
Submitting an answer to a closed question
99174
Award extra points to answer?
77934
Why there isn't a feature that lets any user on SO to request other user to answer their question?
16030
What to do when OP answers his/her own question in an edit?
36260
What do I do when a question can't be answered?