There are none.
France is the largest country that Andorra borders.
India is the largest country that borders the Bay of Bengal.
Uh .. Singapore is a country, with one city, which is Singapore .. That's why on addresses, it is seen as Singapore, Singapore .
Singapore
Singapore.
China is the largest country that borders Nepal.
Saudi Arabia is the largest county that borders the Persian Gulf.
The world's largest desert is Antarctica and it borders no country. It is a continent surrounded by ocean.
Russia.
The Indian Ocean borders Singapore.
Australia has the largest percent of its land mass on an island, as it is both a country and a continent. Australia's entire land mass is situated on the Australian continent, which is the world's largest island.
China borders the largest number of other countries, with a total of 14 neighboring nations.