MooFAQ is a grwat extension. It brings a very intuitive approach to the faq sections for joomla sites. The faq questions are simply common joomla articles, no additional db tables and no separate component where you can do that. You simply set it up by modifying its menu item parameters.
Also the support is the best that I encountered so far for a joomla extension. My client asked for some additional modifications to be done, and the developer did that in practically no time. Outstanding!