Answer:
Handy when you need to measure something or run a kingdom.
What comes down but never back goes up?
I'm often served as a "rack of ..." I'm often smoked or grilled, with bones in, and slathered in BBQ sauce.
Controlled by your hands and feet. It would be nothing without a street. What is it?
What bank has no money?
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.