Answer:
The edge of earth and bread.
Whipping one of these out in the wrong setting is said to be terrible luck.
What has 4 fingers and a thumb, but is not living?
What gets bigger the more you take away from it?
What time of day, when written in a capital letters, is the same forwards, backwards and upside down?
Iām grown from darkness but shine with a pale light. Very round I am and always a lady's delight.