No, it doesn't work that way for Recovery Questions. You need to know the current ones set in order for the appeal to work. (This is assuming you're not the original creator of the account. If you are, then you'll always be able to recover the account.)
False, even non-original creators can still recover the account without knowing recovery answers.
Basically recovery answers are useless when trying to recover an account. In very very few cases will they make/break an appeal

