Little can be stated to a JW that would be so thought provoking that they start to question their faith. That type of questioning comes from within ones own psyche
I entirely agree DisArmed, which is why the questions are framed to start them thinking about what they believe rather than attacking a belief. I don't think it is particularly profound - just another logical inconsistancy in the bible/JW beliefs. Personally I think it is all nonsense. JWs usually need a bit of a push to get started in really thinking and then their own psyche can take over. As I said earlier, doesn't work for many, but asking questions like this can help some start thinking and there is little risk to the questioner since it isn't attacking a belief. Anyone tried questions like this? I have tried this one and listened for about half an hour to several witnesses examine all sorts of inconsistancies.
SF