Well, if you passed, why at the debrief, did the examiner not tell you which questions you got wrong, and why? How hard can it be for some people to pass on a bit of knowledge? It would be different if you failed - the examiner would probably tell you to p1ss off and do some study. I would.
My answers, from a practical - not necessarily legal - viewpoint:
1 yes and yes - provided that you have some alternative means of determining the wind direction; e.g. smoke, FMC/FMS/GPS, ground report, other nearby airport. AND if a diversion would compromise your fuel, or some emergency exists, even lacking all of the above: you (I) will be landing anyway using the most likely runway based on forecast or local knowledge.
2 no idea - 'a safe distance'? APPROXIMATELY 15 metres sounds like a good number. It is buried somewhere in the old CAOs where it waffles on about distance from another aircraft with engines running. Yeah right - try parking xx metres away from another aircraft at most busy airports these days.... This is one of those fairly useless questions, because my 15 metres could be your 20 and vice versa. We have no way of measuring it sitting in the cockpit. A bit like that favourite in all the air legislation exams about horizontal distance from cloud - how does one measure this in flight?
3 HIALS will be visible at cat one minima