feenx, I doubt you'll find any active dubs on this site who would be willing to answer your question, because your question is in the same category as the other faith-challenging questions you mentioned. Dubs will not entertain such questions for a moment because they are braindead.
However, as the most reluctant dub in the world, I never brushed such questions away when I was in my teens. Instead, very foolishly, I went to the elders and asked them. They would give me a plausible answer, and I would go away satisfied. But then I started thinking (always dangerous for dubs) about the answer I was given, would see flaws in it, and at the next meeting ask more questions. After about five or six sessions like this, the elders told me that my "constant" questioning was a sign of weak faith, and that I should stop asking them. I did stop asking the elders. But I mulled them over myself, came to certain conclusions, and when my son was born, I got the hell out of dubville.
In her book, Visions of Glory, Barbara Grizzuti Harrison stated that, while still a dub, she regarded her "intelligence as a kind of predatory animal which, if not firmly reined, would spring on me, attack me, and destroy me."
And her conversation with Knorr when she told him she was leaving Bethel and the dubs:
Knorr: Weren't you high school valedictorian?
BGH: No.
Knorr: But you were smart.
BGH: yes.
Knorr: That's your trouble.
Lesson to be learned -- if you're a dub with little intelligence or curiosity, you'll make a great dub. If you're a dub with some smarts and a willingness to use them, you won't be a dub for long.
Apparently, Jehovah judges one by how well he/she uses the mind Jehovah supposedly created.