Answer:
What is it that was given to you, belongs only to you. And yet your friends use it more than you do?
I love to dance and twist and prance. I shake my tail, as away I sail. Wingless I fly into the sky.
Look into my face and I'm everybody. Scratch my back and I'm nobody.
What is a five-letter word that has brain in it?
I don't think or eat or slumber. Or move around or fear thunder. Just like you I look the same but I can't harm you or be your bane.
You use it between your head and your toes, the more it works the thinner it grows.