Answer:
I live above a star who never burns. I have 11 neighbors but they never turn. My initials are p q r and sometimes s.
I start new then become old. Start clean but be one dirty. I usually start big then become little.
What goes up and down, but does not move?
In wealth I abound; in water I stand; as a fencer I'm valued all over the land; at Venice I'm famous; by farmers I'm prized; respected by law yet huntsmen despised; consternation and ruin ensue when I break; And the beasts of the forest advantage won't take.
I am pronounced as one letter written with three. I come in blue black brown or grey. Reverse me and I read the same either way.
The answer I give is yes, but what I mean is no. What was the question?