This excellent Faq Manager module has the ability for users to submit questions, which can be answered and then activated by admin upon receipt of a system email.
The Faq Manager is capable of infinite categories and sub categories.
Admin has full control via a comprehensive administration panel where every setting can be managed.
The Faq Manager module also supports customer reviews and includes a category sidebox.
This module creates an easy way for you to add multi language FAQs to your Zen Store.