Answer:
I have three hundred cattle, with a single nose cord
If Mississippi should lend Missouri her New Jersey, what would Delaware?
The eight of us move forth and back. To protect our king from the foes attack.
We are five little objects of an everyday sort. You will find us all in a tennis court.
What has wings, but can not fly. Is enclosed, but can outside also lie. Can open itself up, or close itself away. Is the place of kings and queens and doggerel of every means. What is it upon which I stand? Which can lead us to different lands.
I have a few points but we're not competing. I'll help you win when you're eating. What am I?