Answer:
What has feet and legs, and nothing else?
You are my brother, but I am not your brother. Who am I?
I transfer oxygen from the atmosphere to your blood
I touch the Earth, I touch the sky, but if I touch you, you’ll likely die. What am I?
What has keys but no locks a space but no room and you can enter but can't go in?
What did the piece of wood say when he saw the screwdriver and screws approaching?