Answer:
I help engines spin and pants stay up.
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.
What has one eye but cannot see?
Lovely and round I shine with pale light grown in the darkness a lady's delight.
I drive men mad for love of me, easily beaten, never free. What am I?
A little house full of meat, no door to go in and eat.