If a rooster lays an egg on the roof of a house, which way does the egg roll?

What is always yours, but mostly used by others? Solve the riddle → I am meant to make you laugh, but I break as soon as I am explained. Solve the riddle → What can you hold in your right hand but never in your left? Solve the riddle → I'm unique: You throw away my outside to cook my inside. Then you eat my outside and throw away my inside. Solve the riddle → There is a line in front of you that you cannot jump over; how do you make it shorter without touching it? Solve the riddle →