Answer:
I have three hundred cattle, with a single nose cord
What do you throw out to use and take in when you're done?
A beggar's brother went out to sea and drowned. But the man who drowned had no brother. Who was the beggar to the man who drowned?
Round as a button, deep as a well. If you want me to talk, you must first pull my tail.
When set loose I fly away. Never so cursed as when I go astray.
People take me on walks and I run and have fun. What am I?