Intro for BOH Brain Teasers: Thinking outside the box

What do you have to give before you can keep it?

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

When I was born I was big but the older I get the smaller I am. What am I?

What is so fragile that sound can destroy it?

What can you break without touching it?

What's always coming but yet never arrives?

What grows down while it grows up?

What goes up but never comes down?

The more you take, the more you leave behind. What are they?