Answer:
I am alive without breath and cold as death. I am never thirsty but always drinking. What am I?
A trail, a union, together tied. Come across me and you will find you cannot change the course I'm on. Without me you cannot travel on. What am I?
What has a face and two hands but no arms or legs?
I know a word of letters three. Add two and fewer there will be. What is the word?
Lovely and round I shine with pale light grown in the darkness a lady's delight.
No matter how little or how much you use me, you change me every month.