How many words should I put in the FAQ for SEO?

An FAQ answer should be concise, accurate and directly answers the question to suit Google's BERT algorithm. According to LARK (an online communication platform), a short answer should be no more than 256 characters or 50 -65 words. According to a Backlinko study, to increase the chance of your FAQ being picked up as a voice answer, it should be concise,preferably be limited to 29 words and be the best answer.