What can both hold an object and be a sharp turn on a road?

What can you hold in your right hand but never in your left? Solve the riddle → What captures triumphs, yet has so many holes? Solve the riddle → You often stretch me out, especially at the start of the day or after exertion. If I am neglected, I soon become stiff and unwilling. Solve the riddle → What flows upstream in history but always runs north, through the heart of the desert? 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 →