Answer:
I am a king who's good at measuring stuff.
I am made of wood but can't be sawed? What am I?
I plow and plow but never sow.
I am two-faced but bear only one. I have no legs but travel widely. Men spill much blood over me. Kings leave their imprint on me. What am I?
I travel in a gaggle.
Long and slinky like a trout, never sings till it's guts come out.