Answer:
What word when read from left to right is a ruler, but when read from right to left is a servant?
What jumps when it walks, but sits when it stands?
I can fly but I have no wings. I can cry but I have no eyes. Wherever I go darkness follows me.
When you stop and look you can always see me. If you try to touch you cannot feel me. I cannot move but as you near me I will move away from you.
I break away from my pack. I create holes in my victims. I can travel for miles and then disappear. I am part of a dying breed. What am I?
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.