The Emacs FAQ is available from within Emacs by typing the command ‘C-h C-f’. The FAQ is also available on the Web.

There is also a collection of questions frequently asked in #emacs on this wiki: CommunityEmacsFAQ

Questions not answered in these FAQs nor found in EmacsManual can be posted to the most relevant article on EmacsWiki, or added to OpenQuestions.