As a student, i remember very vividly that any potential imprecision in the question of the exam was the source of great confusion, especially since you couldn'

As a student, i remember very vividly that any potential imprecision in the question of the exam was the source of great confusion, especially since you couldn't ask the examinator for explanation (the test was supposed to be perfect). I'm not being pedantic here, i am really furious against teachers that makes students think about the best way to disambiguate the question instead of thinking about the subject of the exam itself.