What goes up and down but doesn't move?

Solve it.

One village, 1 queen , 1 police , 18 thieves , 4 wells , the police put thieves in the well or sometimes queen.


@jaychamp sorry can you clarify? Your way of putting the problem does not very accurately explain it. You could equivocate it to saying, "banana duck asparagus eating house on painting"

Coincidentally, Gwen Stefani's motto is "banana duck asparagus eating house on painting."