| Costello, Ali - |
| Abiogenesis (100) | | Multiple Choice | 2013.07.09 |
| Bill Clinton (100) | | Multiple Choice | 2020.10.20 |
| David Krumholtz (45) | | Multiple Choice | 2009.08.14 |
| Exponential decay (41) | | Multiple Choice | 2015.09.25 |
| Giants Causeway: Ireland’s Natural Puzzle (8) | | Multiple Choice | 2011.03.23 |
| Heuristic (psychology) (48) | | Multiple Choice | 2021.08.17 |
| La Révolution française (film) (43) | | Multiple Choice | 2011.01.22 |
| List of trigonometric identities (10) | | Multiple Choice | 2008.04.14 |
| List of United States cities by population (31) | | Multiple Choice | 2014.11.20 |
| Lofoten Islands: Norway’s Arctic Archipelago (34) | | Multiple Choice | 2011.02.15 |
| Pamir Highway: The World’s Most Remote Road Trip (16) | | Multiple Choice | 2011.08.19 |
| Penal labour (15) | | Multiple Choice | 2023.10.01 |
| The Enchanted Forest of Dean, England (9) | | Multiple Choice | 2011.03.16 |
| The Salt Flats of Salar de Uyuni, Bolivia (13) | | Multiple Choice | 2011.06.06 |
| The Secret Gorges of Verdon, France (8) | | Multiple Choice | 2011.11.22 |
| The World’s Smallest Desert: Carcross, Canada (16) | | Multiple Choice | 2011.03.23 |
| Vajiralongkorn (33) | | Multiple Choice | 2020.04.04 |
| World War II in Yugoslavia (22) | | Multiple Choice | 2010.03.24 |
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