Easy Riddles

I run, yet I have no legs. What am I?

What has to be broken before you can use it?

What is black when you buy it, red when you use it, and gray when you throw it away?

How many months have 28 days?

What grows the more it is shared?

What has a head and a tail but no body?

I am not alive, but I grow; I don’t have lungs, but I need air; I don’t have a mouth, but water kills me. What am I?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

What can be broken, but is never held?

What is always coming but never arrives?