Answer:
What is it that was given to you, belongs only to you. And yet your friends use it more than you do?
What has two spines and a lot of ribs, and carries much but never moves?
Round like a dishpan and smaller than a bathtub. But the ocean can't fill it. What is it?
Whoever makes it, tells it not. Whoever takes it, knows it not. And whoever knows it wants it not
Both old people and owls are said to be possessing this trait
People take me on walks and I run and have fun. What am I?