I have 13 hearts, but no other organs. What am I?

I have lakes with no water, mountains with no stone, and cities with no buildings. What am I?

I shave every day, but my beard stays the same. What am I?

First I am dried, then I am wet; The longer I swim, the more taste you get. What am I?

I have eyes but I can't see. I live in the dark until you need me. What am I?

You heard me before, and then again. Afterward, I die, until you call me again. What am I?

I can't be bought, but I can be stolen with a glance. I'm worthless to one, but priceless to two. What am I?

I can be short and sometimes hot. When displayed, I rarely impress. What am I?

I'm lighter than what I am made of, and more of me is hidden than is seen. What am I?

I'm a god, a planet, and I measure heat. What am I?

My voice is tender, my waist is slender and I'm often invited to play. Yet wherever I go I must take my bow or else I have nothing to say. What am I?

Lovely and round, I shine with pale light, grown in the darkness, A lady's delight. What am I?

I help you from your head to your toe. The more I work, the smaller I grow. What am I?

I'm where yesterday follows today and tomorrow is in the middle. What am I?

I'm found in socks, scarves and mittens; and often in the paws of playful kittens. What am I?