Answer:
What do people want the least on their hands?
Which button does not function when being pressed?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.
To unravel me you need a simple key, no key that was made by locksmith's hand. But a key that only I will understand.
What can be swallowed, but can swallow you?
If you can spot one of these eastern warriors, it means they're not doing their job right.