I can, maybe shed a little bit of a different perspective on this. To go back a few posts...
The saying "God works in mysterious ways" can be attributed to the perceivably bad or tragic things that happen on earth. For example, when a family member dies at a young age, there is, in reality a bigger picture or reason why that family member had to die. For example, when my mother died at the age of 50, I can't tell you how many things changed for the better despite her being an incredible influence on earth. Details aren't really necessary, just trust me, they did. My cousin died at the age of 39 a month after my mother.While there is obviously a lot of pain because she isn't here, the positive affects it has had are much more prevalent to so many people. Again, I could write an essay on the positive affects of these two great women's premature deaths.
That leads into God answering prayers. God is all knowing. He knows the consequences of an answered prayer. I've found that prayers always do get answered for me, although they aren't in the way or shape that I imagine they would be answered. Here's a really basic example. Say an 8 year old boy prays for a bicycle. Well, maybe, the way it would work is, a situation would arise for the kid to make a few bucks delivering papers. Maybe the local paper puts an ad in the paper and his father sees it. Now, not only does the kid have enough money to buy the bike himself, but through his answered prayer, now has learned how to work for what he gets.
Anyway, of course there are all kinds of reasons for any of these situations. That's why we have faith. We have faith in God, we have faith in ourselves, we have faith in our technology and sciences. With all of this faith, there should be little room to argue about it. We're all different and have faith in different things. It's good to debate about it, but in the end it just matters what you as a person believe in.