Answer:
They are two brothers. However much they run, they do not reach each other.
Sometimes it's silver but also gold. Printed on paper it's a treasure to hold. What is it?
It comes from crystal and melts to a treat. Add it to your tea to make it sweet. What is it?
Before Mt. Everest was discovered as the highest mountain in the world, which mountain was the highest?
A tiny bead, like fragile glass, strung along a cord of grass.
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.