Riddle: I have billions of eyes, noses, and mouths, yet I reside in complete darkness. I have billions of ears, yet I possess only a quartet of lobes. I possess absolutely no musculature, yet I have control a pair of hemisphers with an iron fist. What am I??
Answer: The HUMAN BRAIN. It has billions of optical, auditory, perfunctory, and tasting nerves, 4 lobes (frontal, occipital, parietal, and temporal), and 2 hemispheres (the left and right).