Answer:
This thing runs but cannot walk, sometimes sings but never talks. Lacks arms, has hands; lacks a head but has a face.
I appear in the morning. But am always there. You can never see me. Though I am everywhere. By night I am gone, though I sometimes never was. Nothing can defeat me. But I am easily gone.
What do you throw out when you need it but put away when you donβt?
What can be swallowed, but can swallow you?
You heart it speak, for it has a hard tongue. But it cannot breathe, for it has not a lung.
Iβm grown from darkness but shine with a pale light. Very round I am and always a lady's delight.