Or write something like “sorry, no time to give a real answer to this question” for each of the long nebulous ones. Probably almost as easy as giving up, and more useful-in-expectation to the people who made the questionnaire. (If there’s some reward for filling it in, this may reduce the probability that you’re eligible, but I doubt you’re filling in questionnaires just for the sake of the rewards offered.)
Or write something like “sorry, no time to give a real answer to this question” for each of the long nebulous ones. Probably almost as easy as giving up, and more useful-in-expectation to the people who made the questionnaire. (If there’s some reward for filling it in, this may reduce the probability that you’re eligible, but I doubt you’re filling in questionnaires just for the sake of the rewards offered.)