My brother, wife, nieces, nephews, and I were demonstrating distilling. We were dressed in clothing appropriate to the 1830s, even though the still was my grandfather's and of early 20th C. vintage. Here are some of the questions we've been asked in all seriousness:

"Is that a real fire?"
"Did they have whiskey back then?"
"How did the corn ferment? Was it like it does now?"
"Was it as cold then as it is now?"
"Do you live here?"
"Do you dress like that all the time?"
(Pointing to the sandwich I was eating for lunch) "Is that okay to eat?"

The kids were the best -- they still had a sense of wonder.