The FAQ page is a rather tricky one :-).
You can have special Q: and A: markups between >>faq<< and >><< delimiters like this:
this is a question
And this is the answer
Be warned than the >><< structure can have only one level, >>faq<< >>xyz<< >><< >><< is not allowed.
With this you can ask questions and give answers anywhere.
But if you want to have them included in the FAQ page automatically, you must add an anchor [[#faq]]