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.

Freemius

Abu Hayat

bPlugins

shehabulislam

Prosanta Roy

Awesome FAQ is a lightweight, user-friendly WordPress plugin that lets you create beautiful and responsive FAQ sections using Gutenberg Blocks or shortcodes. 
Perfect for bloggers, business owners, online shops, portfolios, and anyone who needs a simple and elegant way to display frequently asked questions.
The plugin comes with 5 free FAQ themes, and you can unlock 3 more premium themes with the Pro version. 
Gutenberg users will enjoy the built-in block support, while classic editor users can easily embed FAQs using shortcodes—giving you full flexibility.
<a href="https://demo.bplugins.com/demo/all-demos-in-one-place/" title="Live Demos" rel="nofollow ugc">Live Demos</a>
<h3>⭐ Key Features</h3>
<ul>
<li>5 Free modern FAQ themes </li>
<li>3 Premium FAQ themes in Pro </li>
<li>Fully responsive on all devices 
-Two Column FAQ and Horizontal FAQ</li>
<li>Gutenberg Block support </li>
<li>Shortcode support for any page or widget </li>
<li>Smooth animations </li>
<li>Fast and lightweight </li>
<li>Extremely easy to use—no coding needed </li>
<li>100% ad-free</li>
</ul>
<h3>🔥 Pro Features</h3>
Upgrade to the Pro version for full customization: 
– More premium FAQ templates 
– Category and Filter FAQ add 
– Search FAQ Options 
– MultiColumn FAQ Add 
– Color, icon, spacing & typography controls 
– Additional layouts & animation effects 
– Ideal for agencies and professional websites
<h3>How To Use</h3>
Awesome FAQ provides two easy ways to add FAQs to your website: Gutenberg Block and Shortcode.
1. Using Gutenberg Block
<ol>
<li>Open the WordPress Block/Gutenberg Editor on any page or post.</li>
<li>Click the Add Block (+) button.</li>
<li>Search for Awesome FAQ in the block directory.</li>
<li>Click on the block to add it to your content.</li>
<li>Customize the FAQ section using the block settings:
<ul>
<li>Choose a theme (free or Pro)</li>
<li>Set colors, icons, typography, and toggle options</li>
<li>Add questions and answers</li>
</ul>
</li>
<li>Preview and publish your page. Your FAQ section is now live!</li>
</ol>
2. Using Shortcode (via Custom Post Type)
<ol>
<li>In the WordPress dashboard, go to Awesome FAQ → Add New FAQ.</li>
<li>Enter your question and answer for each FAQ item.</li>
<li>Assign categories or groups if needed (for multiple FAQ sections).</li>
<li>Click Publish to save the FAQ item.</li>
<li>Copy the generated shortcode displayed on the page.</li>
<li>Paste the shortcode into any post, page, or widget where you want the FAQ to appear.</li>
<li>Save and preview to see your FAQs in action.</li>
</ol>
<h4>Feedback</h4>
Love the plugin? Want new features? Need support? 
We’d love to hear from you: 
📩 <a href="https://bplugins.com/support/" title="Send feedback" rel="nofollow ugc">Send your feedback</a>
<h4>⭐ Check out our other WordPress Plugins</h4>
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🔥 <a href="https://wpvideoplayer.com/" rel="nofollow ugc">Html5 Video Player</a> – Fully customizable video player plugin. 
🔥 <a href="http://pdfposter.com/" rel="nofollow ugc">PDF Poster</a> – Display PDFs beautifully on your website. 
🔥 <a href="https://wordpress.org/plugins/streamcast" rel="ugc">StreamCast</a> – Powerful radio player plugin. 
🔥 <a href="https://3d-viewer.bplugins.com/" rel="nofollow ugc">3D Viewer</a> – Display interactive 3D models easily.

Awesome FAQ  – Modern Accordion, Tabs, Responsive & Super Fast FAQ Builder.

This plugin i have developed for add Faq are in one of my clients website. 

LCB FAQ vs Awesome FAQ – Modern Accordion, Tabs, Responsive & Super Fast FAQ Builder.