RoboHelp doesn't have a mechanism built in that monitors what has been asked and dynamically creates an FAQ for you (if tha'ts what you are asking).
So certainly any FAQ list will have to be constructed by you. Fortunately, RoboHelp does offer tools that will assist.
RoboHelp 8 offers what is called a "Mini TOC Placeholder" that might help. What you would do is to create a topic and insert the Questions followed by the Answers up and down the page. Then format each question as a Heading. (Heading 1, Heading 2, etc. Generally I like using Heading 2.) Then insert the placeholder at the top of the topic and RoboHelp will construct a list of questions that has each question as a link pointing to its counterpart farther down the page.
If you aren't too keen on that approach you could also type your list of questions and create a dynamic HTML drop-down where each answer would expand and reveal itself as the user clicked the question.
Helpful and Handy Links