Answer:
I occur twice in eternity. And I'm always within sight.
I am a king but also a common device of measure. What am I?
The more you take, the more you leave behind. What are they?
Prior to smartphones, people used this to record their lives.
What can't you see, hear or feel, until itβs too late. What shadows love, and shopkeepers hate?
What never gets any wetter no matter how hard it rains?