******
Question: Does at least one deity exist?
Agnostic: (shrugging) Maybe, .......maybe not.
*******
My addition is the phrase “maybe not.”
I am probably splitting hairs but this is the typical response from an agnostic. They are noncommittal because they claim that they cannot know.
“Amen, amen, I say to you, unless you eat the flesh of the Son of Man and drink his blood, you do not have life within you” (Jn 6:53)