Answer:
I am found in the sea and on land but I do not walk or swim. I travel by foot but I am toeless. No matter where I go, I am never far from home. What am I?
I am commonly ate before I'm born and after I'm dead.
Though I am dark Adam married me.
What gets sharper the more you use it?
A large oasis in the desert. Come with cash and leave with none.
Black we are and much admired. Many seek us if they are tired. We tire the horse, and comfort man, and turn White when we've fulfilled your plan.