Answer:
Who eats a lot of iron without getting sick?
I cost no money to use, or conscious effort to take part of. And as far as you can see, there is nothing to me. But without me, you are dead.
Ten men's strength, ten men's length. Ten men can't break it, yet a young boy walks off with it.
What has wings, but can not fly. Is enclosed, but can outside also lie. Can open itself up, or close itself away. Is the place of kings and queens and doggerel of every means. What is it upon which I stand? Which can lead us to different lands.
When can someone truthfully tell someone “well done” but think they did a bad job?
Often cooked as fillet, this meat comes from an animal that swims underwater.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?