Why do some questions closed as duplicates lack a duplicate target?
29817
Closed as a duplicate, but the duplicate list is empty?
48639
Why prevent duplicate questions?
131299
Changes to "close as duplicate"
77168
Do related linked questions really need to be linked twice?
4056
Can we clarify to the OP that their question is not yet closed and the duplicates are only suggestions?
78861
Why are there two separate boxes about duplicate questions?
128880
"Marked as duplicate" text doesn't make sense for questions that have no answer
20899
Linked and Related sections contain duplicate links to questions
141049
Incorrectly able to answer a closed question
130608
Why can we flag/vote a question on Meta as duplicate of another question which has no accepted/upvoted answers?
111647
How to find questions closed as duplicates via the Data Explorer
146576
Askers should be able to close their own question as a duplicate
12566
Give an incentive for finding duplicate questions
55609
Can closed:[0-1] apply to the parent question when is:answer is specified via search?
17883
Why does the question's closed status disappear when clicking to load a new edit?
113626
"Close as duplicate" - what if only the answer is a duplicate?
82191
What happened to the link to the duplicate when a question is closed as a duplicate?