Answer:
It is able to speak because it has a hard gone. You know what it is as soon as it has sung. What is it?
When you stop and look, you can always see me. If you try to touch, you cannot feel me. I cannot move, but as you near me, I will move away from you.
Dies half its life. Lives the rest. Dances without music. Breathes without breath.
I am whole but incomplete. I have no eyes, yet I see. You can see, and see right through me. My largest part is one fourth of what I once was.
Two brothers we are, great burdens we bear. All day we are bitterly pressed. Yet this I will say, we are full all the day, and empty when go to rest.
When is it bad luck to see a black cat?