Answer:
You are on an electric train. Which direction will the smoke fly in?
What has a hundred limbs, sometimes leaves, but cannot walk?
What has feet on the inside but not on the outside?
With sharp edged wit and pointed poise. It can settle disputes without making a noise.
Each morning I appear to lie at your feet, all day I follow no matter how fast you run. Yet I nearly perish in the midday sun.
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.