Answer:
Travel a mile and I will change, travel a million and I will end as I started. What am I?
First I may be your servant's name. Then your desires I may proclaim. When your mortal life is over, I hold all your wealth within my power. What am I?
I direct you from outer space.
I am the place where yesterday is always before today. What am I?
I go up and down at the same time. Up towards to sky and down towards the ground. What am I?
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.