Countries that Have Never Been Neighbours with the Former British Empire
Name all the countries that have never bordered any (modern-day) country whose land was part of the British Empire - even if it was just a small territory. Countries whose territory was part of the empire do not count either.
Based on this map and this quiz. Wikipedia and this quiz do not consider Afghanistan and Ivory Coast to have been part of the British Empire.
Smaller territories also count (e.g. Heligoland, Ionian Is., Mosquito Coast, Hong Kong, Welhal, Gibraltar, Menorca). They count as a whole modern-day country: Hong Kong -> China --> all Chinese neighbours are out.