"isanswered:no" returns questions with accepted answers
46289
The search parameter isanswered ignores acceptances
5735
Why is the Association Bonus ignored when trying to answer a protected question?
148502
Two accepted answers
71476
How to deal with duplicate answers posted long after first answer(s)
64202
Unaccepted answers lead to mismatches in the daily reputation displays
15090
Better oversight for self-deleted answered questions
112332
Show in linked/related questions sidebar whether a question has answers or not
158277
How to search unanswered questions
152813
No way to delete an answered question
51805
"Delete this answered question?" when the only answer is deleted
66264
Reduce accepting-own-answer delay
23542
How can I view all my unaccepted questions across SE?
123764
Question closed because yes/no answer
30878
Why does the "Unanswered Questions" tab show questions that have answers?
308
Different answer counts if there are deleted answers
47388
How can I bump other users' unanswered questions?
109169
Do answers left on questions that subsequently get deleted impact the Answer Ban criteria for those users?