Answer:
Iron on a mammal. Mammal on your feet.
What points the way without a hand. It floats on water but exists on land?
What loses its head in the morning and gets it back at night?
Brown I am and much admired; many horses have I tried; tire a horse and worry a man; tell me this riddle if you can.
We are all around, yet to us you are half blind. Sunlight makes us invisible, and difficult to find.
Often cooked as fillet, this meat comes from an animal that swims underwater.