Answer:
What has a mouth but can't chew?
I am a span of time you can always see through I am also the timepiece with the most pieces. What am I?
What does a WW1 Trench, A Submarine and a Popular Phone App all have in common?
What flies without wings? What passes all things? What mends all sorrow? What brings the morrow?
Big as a biscuit, deep as a cup, but even a river canβt fill it up. What is it?
Iβm grown from darkness but shine with a pale light. Very round I am and always a lady's delight.