No it does not. It still within the USA.
No. Antarctica is a continent, and is not a country with which another country could share a border.
There are not 17 states that border another country in the US only 16
border
Texas
northwest
Canada or Mexico
obviously yes
Frontier: The part of a country that borders another country; border; boundary
No, Wyoming does not border any other country. It is bordered on all sides by US states.
Maine, New Hampshire, Vermont, Pennsylvania, New York, Michigan, Minnesota, North Dakota, Montana, Idaho, Washington, and Alaska all border Another Country (Canada). California, Arizona, New Mexico and Texas all border another Country (Mexico).
The Indian state that touches the maximum border of another country is Arunachal Pradesh, which shares borders with Bhutan, China, and Myanmar.
Hawaii