In God We Trust

As is Anirud's nature, if he gets interested in any topic he will go as deep as possible and keep pestering us with volley of questions. In the recent times, the subject of his interest is, as you guess it - GOD. Although my wife and I are strong believers, we have never bothered to explore the spiritual side of things. Whether it is rational or otherwise, our tryst with God has never been based on questions, at least so far. On the other day, our brat started firing this way.

A: Did God create everything in the world?
We: Yes

A: Did he create the buildings?
We: He created everything natural.

A: So, who created the buildings?
We: Men built them, but the skills to build them were given by God.

A: How about people? Did God create the people?
We: Yes

A: Then, why did he create some bad people?
We: He created good people.. but some of them become bad on growing up.

A: Ok. If God created everybody, who created God? Did he create him all by himself?

I think we should have rather stopped him right at the beginning.