Unanswered questions with no answers
69027
How can I find unanswered questions with zero answers in some tag?
115700
Watching questions for answers
32219
Asks a question; never responds to answers/comments
149924
What is the meaning of "There are questions that science can't answer"?
35162
Duplicate questions without answers
13431
Question Limit exceeded but I haven't asked any!
91658
why are unanswered questions not sorted by date?
8765
Your answer is in another castle: when is an answer not an answer?
85440
Why does Unanswered show Answered questions?
60585
What if the answers of a historical locked question become obsolete?
58912
What should happen to questions asked by non-existent users with answers that score higher than the accepted answer?
82426
How to handle users who don't select answers for their questions?
152270
Answering comment-answered questions
81129
My bountied question is likely not to have a answer that works. But there is an upvoted answer that doesn't actually answer the question
140926
Can I re-ask a question if it hasn't been answered?
22841
Discourage questions being marked as answered within an hour or so of being posted
55871
Can I ask a technically solved question for better advice?