An "operator" is just a person who has admin status on a server.
Another op on the server has to make you one.
There's no particular way to do it, on most servers the op is just the guy hosting it, and his friends.
Chat with our AI personalities
You have to be the host of the server.
Force Operator hasn't worked since 1.2.5, and there isn't a certain password for it. It's against the terms and conditions of Minecraft, so I'd stick away from it.
if you die on hardcore mode, you can become your kid.
You can become nauseated if you eat the rotten flesh dropped by zombies, or raw chicken.
No, people do not give out admin for free on servers to any random stranger