Answer:
People need me, yet they give me away every day. What am I?
We are little airy creatures all of different voice and features one of us in glass is set. One of us you'll find in jet. Another you may see in tin. And the fourth a box within. If the fifth you should pursue it can never fly from you.
I build bridges of silver and crowns of gold. What am I?
I describe a toilet cleaner as well as one of Santa's reindeer
I open to close but I close to open. I'm surrounded by water but I'm never soaking. What am I?
No matter how little or how much you use me, you change me every month.