Answer:
It is weightless, you can see it. If you put it in a barrel it will make it lighter?
Break it and it is better, immediately set and harder to break again.
White fat and fluffy, May even look like a puppy. Seems heavy but is light, Floats about without a worry, But if it turns dark you have to hurry!
When there is fire in me then I am still cold. When I own your true love’s face then you will not see me. To all things I give no more than I am given. In time I may have all things, and yet I can keep nothing.
What has 4 legs in the morning, 2 legs in the evening and 3 legs in the night?
I’m grown from darkness but shine with a pale light. Very round I am and always a lady's delight.