The way that the members of the committee, who disappear so easily, almost instantly when the lights go out in the committee chamber during A Change of Mind the only persons remaining when the light are turned back on, are No.6 and the Butler!
You see there is much which can be explained, such as the rocket, it's launching which caused the mass evacuation of the village, I can tell you what type of rocket it was. A Blue Streak rocket of British origin, what I can't tell you why it was in the possession of the village authorities!
Then there is the case of No.86 of A Change of Mind who told No.6 that she is higher than No.2, but that might have been the drug talking! Then what about No.2, the one who was due to retire, and who had been away on leave. No.2 was never known to go on leave before! and he must have been away on leave for a considerable length of time, because there were three interim No.2's that we see, and possibly as many we didn't. And then, when No.6 came to pay a call on No.2, he asked to see No.2. He didn't appear to recognise the retiring No.2 sitting in the chair at the time. And No.2 said "Ah Its No.6 isn’t it." that sounds like a question, but then I suppose it depends on how you say it. I mean shouldn't these people know one another? But perhaps this retiring No.2 hasn't had the dealings with No.6 as much, if any, as those of his predecessors, so busy with making improvements to the village, the new mural in the library, the electrification of the clocks, the new concert hall to be built and the new blue-zone in the post!
And all those helicopters taking off from all corners of the village, helicopters never before seen, apart from the French Alouette helicopter, where did they all come from? And then there are those so termed 'Jammers', didn't one of them ever try to escape? Seems they were given the perfect opportunity, seeing as how Control lets anything ride which comes from a Jammer!
Then in Free For All there was the interior wall of the Green Dome, in the way it revolved to reveal that singular steel door which led into that cave beyond. But even stranger were those four men dressed in overalls, wearing goggles and who sat around the village guardian, and which is pulsating. Now that is inexplicable!
So you see, no matter how much, and how deep, one cares to delve into the depths of the enigma that is the Prisoner, there will always be something left which remains a mystery. And in that perhaps lies the attraction of both the Prisoner and his village, in that it is not possible to explain, and put interpretations to, those things which will forever remain inexplicable!