Answer:
Iām tall when Iām young. Iām short when Iām old. I can light up your world. What am I?
What can you hold in your right hand but not in your left hand?
What is black when you buy it red when you use it and gray when you throw it away?
I am the thing that is used to make your weight. What am I?
I am easy to waste. I am unstoppable. What am I?
Dry though I may be, I am still a sea.