Can I offer a bounty to an accepted answer that already exists?
51748
Can I award user with special bounty after accepting his anwer?
116674
Allow author of accepted answer to delete it in certain circumstances
67449
Offering actual money as a bounty?
87154
What to do if an out of date question+answers already exists?
140094
Does awarding bounties to a feature-request actually work (i.e. change prioritization)?
22416
Should we allow adding rep to bounties to extend their duration?
98564
Existing answers should be eligible for bounty auto-award, when the reason for bounty is to reward an existing answer
121836
A better answer was posted long after accepting another. Should I accept the new one?
75579
Allow bounty to be set with reputation from another site?
121288
What if I offer a bounty and don't get any good answers?
5563
Asking users to accept answer when they comment that it answers their question
59320
Is there a way to search questions with bounties (ever having had a bounty)?
146244
Notification of a more popular answer than the accepted one
42614
How can I lose a bounty?
112391
How should one respond to "duplicate answer" flags?
111759
Bounties for answers that were particularly useful
10674
Avoiding asking a question that's already been asked