Answer:
Of no use to one, Bliss to two. Men lie for it. The baby’s right,
Looks like water, but it's heat. Sits on sand, lays on concrete. A play on the eyes, but it's all lies.
They have not flesh, nor feathers, nor scales, nor bone. Yet they have fingers and thumbs of their own.
I go around in circles, but always straight ahead. Never complain, no matter where I am led.
You will find me with four legs, but no hair. People ride me for hours, but I don't go anywhere without needing to be tugged. Jerked or turned on, I always manage to be ready for work.
Both a currency and an antlered male. What is it?