What to do when it is appropriate to give the same answer to more than one post?
64859
Is it acceptable to add a duplicate answer to several questions?
158880
Another take on canonical answers: Add a "canonical" vote
110537
The "best practice" answer etiquette
30736
Is it ok to tell the OP to accept an upvoted answer?
22458
Add ability to flag answers as duplicates
148715
Should the system cap the number of answers allowed for a specific question?
53369
How to Give Credit for An Answer in the Comments
9508
How to reply to one user among two having same names?
70074
How to handle a deliberate duplicate question
47803
Answering the same question across the site
90717
How do I combine two answers to create the best answer on stackoverflow?
94974
Asking similar questions - process?
147669
Why is it possible to answer a question twice?
89721
When should one add another answer instead of editing one's already posted?
113626
"Close as duplicate" - what if only the answer is a duplicate?
117258
Is it ok to to delete and repost a duplicate question?
10293
How should duplicate questions be handled?