Answer:
If you blow past your destination, you'll have to throw your car into this.
Many foods can make me strong but give me water and I won't last long.
Why is 6 afraid of 7?
Very helpful if you intend to go gently down a river.
Small, containing light, You'll need it in the dark, It will provide that spark, and shine into the night. Will light up any pyre, 'Cause it can help make a fire.
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.