Gemini rules 🎉✌🏼️
I was thinking Lion, Ram, Scales.... :/
(and waterman threw me for a few seconds..)
A lot of people wouldnt have a diploma or driving license if that was the case ;) you learn and try and. (If at first you dont succeed)
And I really think this should be ( though I often hate them) a yellow box one, the answers are so tied with their dates. It will be much harder yes, even more for non english speakers ( though when you do know the english one you probably know what it is in your own language so it wouldnt be harder to get the months). Might need a bit more time then, cause there would be a lot of trial and error. Most probably know atleast their own though and maybe their parents/syblings/partner
Although, having said that, nowadays there should be a thirteenth (Ophiuchus), because of how the stars have moved relative to the sun and Earth since the twelve were first described in this way. So perhaps it's a mixture of science and history.