Answer:
These are the bumpy parts of your digits
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.
What has a head, a tail, is brown, and has no legs?
I start with āeā end with āeā. I have whole countries inside me. What am I?
I'm a starchy plant tuber that is one of the most important food crops, cooked and eaten fried, such as french fries.
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.