Creating FAQs for a website, product or service etc is a common thing. Most of the WordPress users create a simple page showing a list of FAQs in there. Today I encountered a fine working WordPress plugin by norcross specially created for adding and managing FAQs in WordPress. So use it because it gives a better experience than creating simple WP page for FAQs.
FAQ Manager allows you to use taxonomies and custom post types (including categories and tags) for managing FAQs section in your WordPress site. Also includes a set of custom taxonomies for organizing, various shortcode options for different types of display options. Usage: Install and activate it. You will see a new added FAQ section in your WordPress admin area dashboard, get your shortcodes from here and start.