Yes for sure.
Well that depends on your religion. Christians Know there is a God and Atheists don't believe it. Muslims believe in A god, but its a different god and Buddhists believe in the Buddha. Those are just a few religions.
If you would like my opinion on the matter if you look at the bible it says all the stuff happening is going to happen and if you think of how the universe was made (the event known as the big bang) its an immense flash of light, as if God had said let there be light, which I believe happened. I hope this has been helpful :)
No he is not - just look around you!