Answer:
He has one and a person has two. A citizen has three. And a human being has four. A personality has five. And an inhabitant of earth has six.
Runs smoother than any rhyme, loves to fall but cannot climb.
At first I am a yellow weed in the lawn, and then the wind blows, and my white feathers are gone. What am I?
What building has the most stories?
What is never used unless it's in a tight place?
People take me on walks and I run and have fun. What am I?