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?
It is an arctic double breasted formal wear.
Who is that with a neck and no head, two arms and no hands? What is it?
My first is in some but not in all. My second is into but not in tall. My third in little but no in big. My fourth in port but not in pig. My whole is made in nature's way. For clothing, rugs used every day.
I have three hundred cattle, with a single nose cord
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.