Answer:
What building has the most stories?
A dagger thrust at my own heart, dictates the way I'm swayed. Left I stand, and right I yield, to the twisting of the blade.
When the creeper passes, all the grass kneels
Salty water everywhere but not sea in sight.
Black we are and much admired. Many seek us if they are tired. We tire the horse, and comfort man, and turn White when we've fulfilled your plan.
I have two eyes in the front and a lot of eyes on my tail