Answer:
I am the key that is the hardest to turn
I am a shimmering field that reaches far. Yet I have no tracks and am crossed without paths. What am I?
Everyone asks for me but yet everyone hates to face me. For someone I am agony for others I am relief. Who am I?
You can read me both ways I wear; One way it's a number reversed a snare.
No matter how much rain gets on me, I won't get any wetter. What am I?
I am your mother's brother's only brother in law. Who am I?