Not to mock, but to inspire a thought.
How old was the earth when it was created?
This presents difficulty insofar as written reports (including science) by those who have gone before us have gaps. I accept the biblical texts as accurate and authoritative on the matter, but since they do not focus on the precise age of the earth, I'm not sure why I, or science, or anyone for that matter, ought to be required to answer with much precision. But there is absolutely no question as far as what the biblical texts say on the face of things regarding origin, purpose, place, and destinations. I rather enjoy the fact that not all the answers are given, but are mostly hidden.