Before I leave this game I must do this. If the world was my stage I would take a right. Everyone must arrive and enter before they leave through it.

I have two eyes and yet I can't see, I have no lungs and yet I can breathe, Through me you feel one of the five, Through me your memories thrive, You feel me right now as you sigh, Kindly do tell, who am I?

I come at the end, small but discrete, In books or your belly, I’m a supplemental treat. A vestige of old, once thought obsolete, or extra material that makes texts complete.

I have one head, one foot, and for legs. In other contexts, I can be found be a river or in a garden. What am I?

Treasure is on the tip of my tongue, but if you're like me, you'll never tell