Silpion

This plugin gives a possibility to manage Frequently Asked Questions as a custom post type. Site admin is able to add and edit questions and answers, assign them to categories and then display the output on any page using [faq] or [faq category={{category_id}}] on any WordPress page.
You can embeed the FAQ directly in your code using lcb_faq_display() function.

LCB FAQ

Displays questions with answers with FAQ category column.

shawfactor

This plugin provides a shortcode to include a HTML5 definition list suitable for FAQ’s or other question and answer lists.
This faq is powered by vanilla JavaScript and has minimal styling so it will not conflict with your theme or JavaScript framework. To learn how to configure the shortcode please read the plugin FAQ
Check out a <a href="https://princesparktouch.com/faq/#how-does-grading-work" rel="nofollow ugc">live example</a>.
View or <a href="http://lhero.org/plugins/lh-faq-shortcode/" rel="nofollow ugc">our documentation</a> for more information.
All tickets for the project are being tracked on <a href="https://github.com/shawfactor/lh-faq-shortcode" rel="nofollow ugc">GitHub</a>.

LH FAQ Shortcode

Creates an accordion style semantic FAQ list

LCB FAQ vs LH FAQ Shortcode