Well australia has always been a problem with islands, because some people see it as a continent and some don't.
The UK is a country located completely on islands, just like ireland, and AKE88, Great Britain is the name of the island on which Scotland, wales and england are located, so the UK and Ireland are islands.
Ake88 there is a difference between island countries and countries without land borders. UK and Ireland are completely located on islands, BUT have land borders, just like Brunei, East Timor, Haiti, Dominican Republic, Papua New Guinea and Indonesia
Great, great quiz, but there are a couple of technical things that could be worked out: you've allowed abbreviation of Saint for Saint Vincent and Saint Kitts, but not for Saint Lucia; and you allow "Marshall" as an answer without needing to type "Islands", but require fully typing "Solomon Islands".
The UK is a country located completely on islands, just like ireland, and AKE88, Great Britain is the name of the island on which Scotland, wales and england are located, so the UK and Ireland are islands.