Answer:
Iām tall when Iām young. Iām short when Iām old. I can light up your world. What am I?
My first half means container. Not a lot of people understand my language.
What gets bigger when more is taken away?
I dig out tiny caves and store gold and silver in them. I also build bridges of silver and make crowns of gold. Sooner or later everybody needs my help yet many people are afraid to let me help them.
What two keys cannot open any door?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?