What Created God? or What is the Meaning of life?

I don't envision myself as an atheist.  I believe God exists, just not within a religious framework, that conveys rules for us to follow.  Being an agnostic, as opposed to an atheist, affords me the opportunity to question the existence of God.  What created God, and why?  Why does anything exist?  Did God just appear out of nothingness?  How does that phenomenon happen?  These questions have no concrete answer, and one should not waste his or her time pondering such unanswerable things (like I do).