Answer:
If you happen to wake up at dawn, you'll probably find this covering the lawn.
Handy when you need to measure something or run a kingdom.
Your reflection can be seen here, as long as youβre not moving.
Touch this and you'll regret it. But if it's cold, you won't forget it. What is it?
One more than a duet.
I am a room that has a roof but no walls. What am I?