WooCommerce FAQ plugin enables you to display store FAQs on separate page as well as product related FAQs exactly on product pages. Your customers can also use a smart “ask a question” form to ask send new questions. The store admin can review the new questions and enable them on front end with a comprehensive answer.

Demo: https://codecanyon.net/item/woocommerce-product-faqs-plugin-ask-a-question/20451491