How did this duplicate question manage to be answered after being marked as duplicate?
32138
How was this answer posted after this question was closed?
114835
Why don't I get credit for closing one of my own questions as a duplicate
37753
Answer edited and approved to contain a totally different answer
130688
Place a bounty to reward an answer on a duplicate (closed) question
27594
Should you gain rep for asking a duplicate question?
70074
How to handle a deliberate duplicate question
55508
Should I copy my answer to a duplicate question to the original question?
116288
How can I improve questions marked as duplicate?
148956
Is there any value to NOT deleting my own duplicate question?
22458
Add ability to flag answers as duplicates
72826
New question asking form sometimes leads to accidental double posts of questions
94974
Asking similar questions - process?
127414
How was this new user able to post two questions less than 40 minutes apart?
128880
"Marked as duplicate" text doesn't make sense for questions that have no answer
18509
Does the new guidance on duplicate questions suggest closing a question as duplicate, if the original answers the OP's question?
61584
When is a duplicate question not a duplicate?
133926
What if 2 answers are essentially the same?