I 'think' that most relevant questions have been answered on certain sites.

When there are doubts, no one can possibly answer all the questions posed by those who are dead-set to doubt.

I can't speak for, of course, those who have simply refused to keep repeating the answers over & over, and who keep getting asked new questions the grow from new hypotheticals. ....Plus, there are things which can't BE answered about the exact flow of jet fuel and the exact distribution of debris that hit surrounding buildings...etc.

One can invent an infinite # of questions...but there needs to be 'some' criteria of what questions are truly relevant and not already covered.