There is no Australian state which shares a border with all other states. No state except for Victoria shares a land border with Tasmania. South Australia shares a border with all mainland states and the Northern Territory.
Goa shares its border with only one other Indian state, which is Karnataka.
Kentucky and Colorado.
Kentucky.
Mississippi
the state that shares a border with Russia
Maine, it shares a border with Vermont.
Maine does not border at least 4 other states. It only shares borders with New Hampshire to the west.
There are two: Hawaii and Alaska. Neither shares a land border with any other US state.
Only Alaska and Hawaii do not share borders with other US states. Every other state shares a border with at least one other state.
The country which has an exclave that shares a border with both Russia and Canada is the United States. The United States exclave which shares a border with both is the state of Alaska.
Alaska and Hawaii do not share a border with any other US states. Alaska shares a border with the Yukon Territory of Canada.