Answer:
Dies half its life. Lives the rest. Dances without music. Breathes without breath.
What has 4 legs in the morning, 2 legs in the evening and 3 legs in the night?
Two horses, swiftest traveling, harnessed in a pair, and grazing ever in places. Distant from them.
What measures out time. Until in time all is smashed to it?
I can be cracked, I can be made. I can be told, I can be played.
You can always find me in the past. I am created in the present, but the future can not change me. What am I?