At night they come without being fetched, and by day they are lost without being stolen. What are they?
I’m the part of the bird that’s not in the sky. I can swim in the ocean and yet remain dry. What am I?
I am mother and father, but never birth or nurse. I’m rarely still, but I never wander. What am I?
I never was, am always to be,
No one ever saw me, nor ever will,
And yet I am the confidence of all
To live and breathe on this terrestrial ball.
What am I?