Answer:
I've been around for millions of years, but I am no more than a month old. What am I?
What has feet and legs, and nothing else?
I open to close but I close to open. I'm surrounded by water but I'm never soaking. What am I?
I can run but not walk. Wherever I go thought follows close behind.
I am the kind of soda you must not drink.
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.