Can I ask different questions with the same title twice on Stack Overflow?
11859
Add title uniqueness to the heuristics for detecting low-quality questions
78861
Why are there two separate boxes about duplicate questions?
147570
Mark questions as duplicate of tag wiki
153800
What if two answer are correct on Stack Overflow?
39363
Please provide the ability to cross post questions to multiple Stack Exchange communities
71476
How to deal with duplicate answers posted long after first answer(s)
10674
Avoiding asking a question that's already been asked
44211
Duplicate notification for the same reputation event after editing question title
100090
Why don't we add a question with the same tag on multiple Stack Exchange sites?
78555
Double booked - User bookmarking question recorded twice
146225
Duplicate questions on other SE sites?
66156
Stack Overflow interesting questions implementation
11336
How should we deal with duplicate answers?
33449
Why does Stack Overflow allow duplicate display names?
20138
Allow cross-posting of questions to more than one SO site
146576
Askers should be able to close their own question as a duplicate
156434
Tagging multiple questions at the same time?