What Am I Riddles

Question: What is bought by the yard by is worn by the foot?

Question: I go up and I go down,
towards the sky and the ground.
I'm present and past tense too,
Let's go for a ride, me and you.

What am I?

Question: What flies when it's born, lies when it's alive, and runs when it's dead?

Question: If you have me, you want to share me. If you share me, you haven't got me. What am I?

Question: I am a righter of wrongs, I hang down from above, I am coiled like a snake, I am tight as a glove. What am I?