I've researched this a little bit on meta and there are some good ideas on how to handle FAQs, but I come across event delegation in jQuery every single visit I've ever had to Stack Overflow and it always results in the same comments/answer.
Instead of marking these questions as "duplicates", because some of the questions can be phrased very differently and they are very rarely marked as duplicates, can we have some functionality to flag a question as a "Frequently Asked Question"?
The user could then select one of the Frequent questions from the relevant tag to link to. The OP gets their answer and it's quick for those who know what the answer is to flag the question as an FAQ.
edit: This illustrates my point quite well. Say I want to flag this question as a duplicate of an event delegation question:
Step 1: Try "event delegation"
Even though the question is tagged only
jQuery, it pulls back results for C#
Step 2: Try "jquery event delegation" Only 4 votes? Surely has to be something more popular than that?
Step 3: Try "jquery .on()" Not even close.
Step 4: Give up
If I clicked on "Duplicate of a Frequently Asked Question", had the choice of the top 20 questions in the jQuery tag, it would be so much easier.