When someone comes up to you in the street and asks if you believe in God, what do you say ?
Which God are you asking about ?
I think about the Gods of Ancient Roman and just find them all a bit implausible.
The Greek Gods are similar, but do they live on Mount Olympus still ?
I used to love tales of the Norse Gods in my younger days, Loki, Thor, Odin - they still have a small neo-pagan following.
There have been so many Gods over the years people have written encyclopedias about Gods, that have only scratched the surface.
The two most popular religions - Christianity and Islam insist that there is only one God. They dismiss all the others. Hundreds and thousands of Gods. Which leads to one of my favourite saying - most people are just one God short of being an Atheist.