NineEighteen is quite right, the CAA have distanced themselves from these questions although I think they did that mostly so they were seen to be not responsible for errors and were not expected to provide answers to the unanswerable.
Many of these questions still turn up in the exams with very few or no changes. A few are in the question bank but not used by the UK CAA, the Mass & Balance question about standard masses for infants is one, some have been lightly re-worded to make them more intelligible.