Some people have no problem believing in the existence of God. British theologian T. F. Torrance, for example, wrote somewhere: 'To doubt the existence of God would be an act of sheer irrationality.'
AND WHERE IS GOD?
A mother brought her son to the Rabbi for religious instruction. The rabbi challenged the boy: 'I'll give you a dollar if you can tell me where God lives!'
The boy thought for a moment, and then responded: 'Rabbi, I'll give you two dollars if you can tell me where God does not live!'
The Dawkins Delusion
This is clever (if the video below doesn't work, try http://www.youtube.com/watch?v=QERyh9YYEis )