Answer:
I am a place where time is told. I am not bought and I am not sold. What am I?
My teeth are sharp my back is straight to cut things up it is my fate.
They come at night without being called and are lost in the day without being stolen. What are they?
I may seem real but it always turns out I was never there in the first place... you only see me during a certain resting stage.
There was a girl half my age when I was 12, now I am 66, how old is she?
Runs over fields and woods all day. Under the bed at night sits not alone, With long tongue hanging out, Resting at your feet until we go for a walk