There Is Such a Thing as A Stupid Question

I was at the gas station this morning filling up on my way to work. There was a woman at the kiosk who wanted to buy a bag of ice.

So the attendant asked her, "Would you like the 10 lb. or 20 lb. bag?"

And do you know what her response was?

"How big is the 20 lb. bag?"

And she asked it with a straight face.