What have four eyes but cannot see?

Tiny bumps come up on your hands and fingers don't hurt unless apply pressure like trying to open a jar or bottle seems to last about two weeks This time they are worse and also on toes what are they? What are reasons a pregnant woman wants a karyotype of her baby? The development of colon cancer occurs slowly and is more prominent in the elderly than the young? What are the symptoms of nasal papillomas? Can someone that's not a twin have twins with a partner that's mother is a twin? Preventive measures of communicable diseases? What is infectivity titer? 3 ways to keep the digestive system healthy? What treatments are available for patients with acoustic neuromas? What causes the heart sounds normally heard in a healthy individual? Low Blood Sugar Signs? What could be wrong if 4 and a half months after a C-section you have had an extended period for 2 months with a brown discharge after the blood stopped and you also have itching? How do you get more sebum? Will dogs mating always result in pregnancy? Can you prevent Klinefelter's syndrome? How could the word 'larynx' be used in a sentence? What slang names do girls use for vaginas? What daily routine uses the cerebellum? A single neuron and all the muscle fibers it stimulates comprise a? What cervical vertebrae is the atlas on?