Answer:
A tasty reward given to well behaved dogs and kids
A setting that proved to be deadly for Abraham Lincoln.
A big shiny black car nobody wants to be a passenger in.
What goes trough your head but you forget it like 3 days after?
People want it, and when they have it, they use it by giving it
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.