Your FAQs should answer the most common and relevant questions your audience has about your product, service, or topic. To determine these questions, you can look at your own data, such as customer service inquiries, reviews, comments, and emails. Additionally, you can analyze what questions your competitors answer and how they position themselves. Keyword research can also help you identify the search terms and phrases that your audience uses. Finally, online forums, communities, and social media can provide insights into the questions and issues your audience discusses.