When my wife was in full indoctrination mode I asked her the following:
"Jehovah created man correct? Then who created Jehovah?"
She was flumoxed by this question as it had clearly never occurred to her. So I said: "I will give you a clue, they also created Allah, the Hindu Gods, the Ancient Egyptian Gods etc." She continued to look perplexed but also now a bit suspicious. "Do you give up?" I asked. "Mankind!" I answered at which point she looked at me darkly and walked off.