Is there a one answer to the questions in hand?
No, of course not. Is there a single shoe that fits all feet?
Like we may see things differently, which is having different perspectives, but does that affect reality?
Of course our perspectives affect reality. They affect our perceptions and subsequently our interactions with the world which is then affected by those interactions. The entire face of the planet has been affected by the realities we live inside our minds. We create the world in our own image, in what ways we have the power to.
Like if we say there is X but people perceive it as Y or Z, it is still X.
So the answer to what is that, is this is X, regardless if you saw it as Y or Z.
First do bear in mind that we are affecting that X through our interactions with it, so it is changing or evolving. But more importantly unless you are able to see and hear, taste and know that reality from all perspectives and no perspectives at once, you are not seeing nor knowing what that reality is.
When it comes to the case of "revealed" religions for instance, those where the Absolute is believed to have 'spoken' in written word to the various tribe or people who assign the Absolute to their deity form, this even if true does not bypass the fact of perception of what the truth is. The very second it is put into words, it ceases to be Absolute, but more importantly it is completely dependent on the perspectives and perceptions of the hearer or reader of these words. That perception or interpretation is not Absolute. It's relative to the hearers point of view. And that you have a collective of people who "generally" agree upon a point of view, that is itself still entirely relative. It's a 'consensus consciousness' that exists in a meditated, relative collective reality. That's why you have entirely different generally agreed upon truths within other groups.
So my point is that "God revealed the truth to us through our prophet", does not get rid of this problem. It cannot be claimed to be the Truth revealed by God because it will always be translated through ones own mind. And the prophets themselves speaking the words were injecting their perspectives in interpreting this 'revelation', they were 'receiving' and so forth. Their own minds of necessity had to be involved. It cannot escape their own interpretation of whatever that was they were perceiving. The whole model fails.
I think one is exposed to greater Truth looking at the sunset or the night sky, than reading the words of those who claim their truths were Absolute revelation. You have to filter out their relative realities to get to whatever light they may have actually been exposed to when they put their words to it. At least looking at the night sky it's much more 'direct revelation' than from the mouth of another. But people just don't trust what they sense and see themselves and so they want another to interpret it for them; trust in the prophet to tell you instead. "Look, he performed a miracle to prove you can believe him", and so forth. Revealed truth in the form of scriptures is a form of mythology.
In that sense I would say that there is a one "true" answer to every question. There is a fact.
You're conflating a lot of lines of thought here. There is the "fact" of a foot, or the "fact" of a shoe, but is there a single shoe that fits every foot? Each of our lived realities is unique. The only way there is a single answer to every question would be if we were all completely identical. Again, the fallacy of "revealed truth" being entirely subjected to relative realities. It is useless as Absolute truth in a relative reality. Calling it that makes it a mythology utilized to simulate Unity through leveling the playing field into relative "sameness". There is radical difference between uniformity and unity. It's a fallacy to call a "revealed truth" Absolute, or "One Answer".
Other answers away from that fact would be called different perceptions and they are wrong if they don't match the fact.
Whose understanding of the fact? And is that understanding Absolute, or relative?