Answer:
Different lights do make me strange, thus into different sizes I will change
If I have it, I don't share it. If I share it, I don't have it. What is it?
A muttered rumble was heard from the pen, and I, in my walking stopped to look in. What was this I saw? A massive beast, hoofed, and jawed. With spikes upon its mighty brow, I watched as he struck the turf and prowled. And yet for all of his magnificence, he couldn't get out of that wooden fence.
Someone walked into a room and you heard a crash! Someone died. What happened?
Without a bridle, or a saddle, across a thing I ride a-straddle. And those I ride, by help of me, though almost blind, are made to see.
Iām grown from darkness but shine with a pale light. Very round I am and always a lady's delight.