Here's a novel thought - instead of these multiple-guess questions, where the game is to spot the trick wording in the answers, how about some sensible questions, to which you have to write down the answers, and which are then marked by a human being who knows something about the subject matter.
Y'know, like it was when we did O levels. If you weren't quite sure what the question meant you could explain that in your answer, and give alternative answers for different interpretations, and it could be marked accordingly. For example you could say things like "I don't give a toss whether it's met vis or RVR that's 1800m, because my personal minimum is 3km, so on a day like that I wouldn't be flying anyway".