A good quiz, but several things should been corrected: Socotra, Reunion and Tenerife are all bigger than Bioko, and should replaced Mauritius, Zanzibar and Morfil. Australia is a continent, not an island, and should been replaced with New Britain. Isla Grande TDF is bigger than Marjao, and they need to change their places. Also Chiloe and Tupinambarana need to be chanced, afther Tupinambarana has been splitted into four islands, and the biggest part, the western, is smaller than Chiloe. The five biggest islands of Antarctica should also been listed: Alexander, Berkner, Thurston, Carney and Roosevelt islands.
Australia is a continent, not an island.
Also, Tenerife is bigger than Bioko (just) and Fuerteventura bigger than Zanzibar.