Answer:
I have three hundred cattle, with a single nose cord
My life can be measured in hours, I serve by being devoured. Thin, I am quick. Fat, I am slow. Wind is my foe.
When I get closer my tail grows longer, but when I go away my tail leads the way.
I am cracked by Indiana Jones. What am I?
Though easy to spot, when allowed to plume, It is hard to see, when held in a room.
I am your mother's brother's only brother in law. Who am I?