I agree that Ananke was the one that puzzled me the most... though my knowledge of Roman deities is pretty mediocre too.
The most sadistic world mythology quiz I could find after searching for five minutes.
This one is tricky... but I was good with the Norse questions, at least... I scored as follow:
You scored: 845 / 2500
You scored 7 questions correct on your first try. The average score for this quiz: 8 / 25
I'm not sure, but one question was who was the celtic goddess of strife and slaughter, and I was pretty sure that was Morrigan. Although Morrign could also be goddess of war.. I don't remember the name that the quiz stated as the correct one, but I never ehard of it.