Answer:
What is the edge of earth and bread?
I cannot be burned in fire or drowned in water. What am I?
I am a path between high natural masses; remove the first letter to get a path between man-made masses.
I have four wings, but cannot fly, I never laugh and never cry; On the same spot Iām always found, toiling away with little sound. What am I?
I am a busy worker who is a water mammal.
The answer I give is yes, but what I mean is no. What was the question?