Answer:
There is one in every corner and two in every room.
You can do this with your friends. You can do this with your nose. But don't do it with your friend's nose!
An artΒ-form and its colour-ful result.
They keep secrets locked away. And you pass through them each day. For each one there is a key, They respond to sesame.
What is something that can go up quite easily, but is not as easy to bring back down?
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.