14 questions left unanswered
I think the answer is in the article. They were not answered because they were formulated around finding the consequences of premises which are not true, the findably existent self or universe.

There is at best no sense in answering them "I believe the moon to be made of cheese: is it Wensleydale or Gorgonzola?"; more likely they would lead to misunderstandings and cause suffering.