Recovery questions are a series of questions that only you know the answer to, so if somehow your password is stolen or lost, you can get your account back. You should not tell your recovery questions to anyone. If someone asks for your recovery questions, you should report them under Rule 3: Password Scamming. Try to avoid setting questions that have an obvious answer to them. For example, "What was the name of your first pet?". For people who know you, this would be quite obvious. Also, you are not allowed to set the same answer for all of the questions.