Riddles for Adults

I am tall when I am young. I am short when I am old.

What am I ?

You go at green but stop at red. What am I ?

What goes up but never comes down?

I come in many different colours and I get bigger when I'm full. I will float away if you don't tie me down and make a loud sound if you pop. What am I?

What do you throw out when you want to use it, but take in when you don't want to?

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

(a)  

What goes around the world but stays in a corner

What is full holes but still holds water

I have a head and a tail. People often say I am #1. I am made of copper. I am lucky if you pick me up. What am I?

What's always coming yet never arrives?