I heard they change between sessions, I presume this meant each person gets a different set. I can't remember what they said at the admissions lecture, but they did mention it in some form.
I think it would be a little naive of the University to expect people not to share questions; they even allowed Niesh to do a practice MMI in their building over the weekend with students who had previously done the MMI, hmm, I wonder where they got their questions from? I mean sure, try as they might but yeah. I don't think it really matters anyway, at the admissions lecture they said there's something like 140 questions they pick at random from anyway (10 for each of the 14 qualities presumably).
I still can't believe I got a bloody interview. Must be some sort of crinkle in the time-space continuum.