Answer:
What flares up and does a lot of good, and when it dies is just a piece of wood?
I am the tool, for inspiring many. Buy me in the store, for not much more than a penny. Don't overuse me, or my usefulness will go.
What has 13 hearts but none beat?
A device for finding furniture in the dark.
A precious stone, as clear as diamond. Seek it out whilst the sun's near the horizon. Though you can walk on water with its power, Try to keep it, and it'll vanish within an hour.
People take me on walks and I run and have fun. What am I?