Answer:
Two in a whole and four in a pair. And six in a trio you see. And eight's a quartet but what you must get. Is the name that fits just one of me?
My teeth are sharp, my back is straight, to cut things up it is my fate.
What has 3 feet but cannot walk?
A cowboy rode into Friday. He stayed in town for three days and rode back on friday. How is that possible?
Take one out and scratch my head I am now black but once was red.
My days are numbered. What am I?