Asking where you may already know or have an answer, even a guess
55871
Can I ask a technically solved question for better advice?
127006
You are here, but where's here?
131094
Is there a Stack Exchange site for asking questions about where a question goes?
42404
When answering, could we be informed that "the following people are already answering this question"?
65568
Should I ask a question that is easily Google-able?
148199
Finding the question I've started answering
93724
How to substantiate the claim that something is not known?
149888
Answering your own question
92326
Is there anywhere to get help wording a question?
140926
Can I re-ask a question if it hasn't been answered?
44699
Answering beyond the question's scope
81403
Is there a tool to help find where the best place to ask a question is?
47546
How much detail should we give in an answer to a rudimentary question?
242
Accepting your own answer with alternative answers to be worth +2 reputation?
3302
Does it make sense to answer old questions?
103155
Does Stack Exchange allow for answers which question the validity or stance of the original question?
52024
How can I link to a specific answer?