It did really happen, but as I said I don't remember whether the other questions were tougher. Perhaps they allow one question to be unknown. For example, when

It did really happen, but as I said I don't remember whether the other questions were tougher. Perhaps they allow one question to be unknown. For example, when you recover a Google account, they ask you when you've created it and the subject of your last email. among other questions. I'm pretty sure I had these ones wrong but they were apparently satisfied with my other answers.