A familiar sight in locker rooms and forbidden doors, or maybe even a bridge in France, if you're so inclined? A valient guard thay has been around for centuries! And in its jaws, with a clean snap, you can feel assured that your treasure is well secured. Unless, of course, something with bigger teeth comes by to bite through iron bone...

Creak creak, is all one may hear, sans lube I'm a feared.

I am round or square, I have little holes everywhere. Syrup sits on top of me, What could I be?

An empty shell crumbles to dust, under a ghastly moon. What remains is barely there, a shadow of a cocoon...

Hotels are red, houses are green. The poorest neighborhood used to be purple in the US, but now is uniformly brown. The richest is dark blue. Four railroads are uniformly spaced and the jail is in a corner. Roll the dice and move your marker to solve this riddle.