re the teaching in HK bit, most require you to have a "relevant" degree so if you're planning to teach, then you will need an English degree. And most tutorials and definitely schools do NOT sponsor without any sort of degree.
And if your wish is to teach in schools under the EDB guideliness you need a BA in English etc, PG Dip in teacher training and experience before they will hire you. you can check out all this information online on their website [url=http://www.edb.gov.hk]The Government of the Hong Kong Special Administrative Region of the People's Republic of China |