How old is the Earth?

[Welsh cake]

You did not understand what I was talking about. I was talking about your absolute claim that there is no such thing as absolutes. It's like a man saying, "I can only tell lies"- that is a self-refuting claim for obvious reasons.

Nice try using logic to disprove the statement, although like a square circle, absolute knowledge as a concept exists but in reality it is unattainable, an impractical pursuit to say the least.

To achieve absolute knowledge, final certainty, is to achieve omniscience, to achieve omniscience is to achieve the capacity to know everything infinitely, infinity cannot be achieved or realised in the real world because it is a man-made abstract concept.

Truth and knowledge exist, yes. While we seek to uncover truths about our universe, absolute truth is an unrealistic goal, for while we can develop a description of reality of varying accuracy no description can ever be absolutely inaccurate or absolutely accurate.

Which questions would you like answered?

I answered your three in the OP, its only fair you answer mine.