Answer:
This thing runs but cannot walk, sometimes sings but never talks. Lacks arms, has hands; lacks a head but has a face.
At first I am a yellow weed in the lawn, and then the wind blows, and my white feathers are gone. What am I?
He stands beside the road. In a purple cap at tattered green cloak. Those who touch him, curse him.
Slayer of regrets, old and new, sought by many, found by few.
Talks like this, a green wise man does. Guess my clue, you will.
What language does a billboard speak?