Answer:
I can be written, I can be spoken, I can be exposed, I can be broken.
I count time, but have no end. Tick tick, but I am not a clock. What am I?
What is lengthened by being cut at both ends?
In the land of the green glass door there are riddles but no answers, sheets but no blankets, and books but no words. Name something found in the land of the green glass door.
I can move even when you are still. I can be one or many.
What do angels sing in the shower?