This really isn't a fun challenge for atheists, it's rather boring. It may be fun for an agnostic that is trying to find reasons to believe instead of disbelieve. Now that is plausable. For an atheists we just don't believe in God and that particular argument is void. The simple question is who or what created God? It's a simple question that doesn't take much logic. A long drawn out explanation would only come from a believer or someone that is racking their brain trying to believe.
It's okay to be agnostic for a little while, but you can't do it for long. Ya know like saying you don't believe but then pray about something just in case. It is hard to let go and it is sad. It would be nice to have someone answer our prayers. Not this particular God though, because he seems to pick and choose who to help. He seems a bit racsist too. I personally like Zeus. He wasn't the nicest God but he never pretended to be either.