A long list, but only the first need to be answered, anyone trying to answer say Q4 would have to get into ovaries, testicles etc.
God is the ultimate though experiment, a concept, an idea, a need, a want. Belief in God is ultimately a matter, not of reason but of faith.
A physical deity is impossible in this 93 billion light year universe, so your questions from two to 17 are irrelevant, albeit, I am on record of asking some of them myself in previous posts.
In summary: “The best any human can do is to pick a delusion that helps him get through the day” ? Scott Adams, God's Debris: A Thought Experiment