Answer:
When I come in from sea to shore twenty paces you'll see No less no more.
Use me if you really want to see inside someone
You heard me before and then again. Afterward I die, until you call me again. What am I?
Against the sun I protect your eyes and am often worn on the face of spies
At night I come without being fetched, and by day I am lost without being stolen. What am I?
What did the piece of wood say when he saw the screwdriver and screws approaching?