Answer:
The 8 of us go forth and back to protect our king from a foes attack
I'm tall I'm round and hollow Seems to get chewed a bit But you'll rarely see me unless the other end is lit.
What runs around the whole yard without moving?
Against the sun I protect your eyes and am often worn on the face of spies
There are four of us but it seems like everyone loves spades the most.
When is it bad luck to see a black cat?