FAQ Builder Topic Block and FAQ KB Articles

On the VA Academy video Using AI Search and other search tools with Virtual Agent I saw some great tips about enhancing the search (thank you!). We are exploring FAQ conversation builder topic block as it seems to be a quick win for VA to answer many more questions. In there it is mentioned that we can import FAQ documents. We have several documents in Q&A format, but no FAQ type KB articles. I have a couple questions for my own understanding:

1. When creating an FAQ KB article, do we have to create 1 FAQ article per each question?
2. We have documents in Q&A format with 50+ questions and answers in them. Can you share some on how to import Q&A formatted docs into FAQ type KB article(s)?

Thank you!