Pronounced as one letter and wrtten with three, two letters there are and two only in me. I'm double, I'm single. I'm black, blue, and gray. I'm read from both ends and the same either way. What am I?

I see all but only those that look above see me I am stone but rarely alone for I am perched high above mortals but was created by them I

I am considered one-but function as two--but can be purchased to function as three!

A man was standing outside his hotel and he knew immediately he was bankrupt how did he know?

This riddle has me beat, I have no idea what the answer is, so I ask that you guys pleasssssssse help me! Here's the riddle: From corner to corner, I can be found covered in darkness. Yet my little green body will not be entirely consumed by the blackness. What am I?