| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,006 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,361 |
| Australian Capitals | 0 | - | 4.92 | 62,594 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,516 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,603 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,461 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 19,886 |
| Oceania Geography Quiz | 0 | - | 4.55 | 21,980 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,807 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,870 |
| Australian States and Territories | 0 | - | 4.96 | 140,913 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,021 |
| Australia True or False | 0 | - | 4.87 | 56,510 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,847 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,809 |
| New Zealand Country Quiz | 0 | - | 4.68 | 75,472 |
| Non-Stop Flights to New Zealand | 0 | - | 4.46 | 47,712 |
| Countries that Beat New Zealand | 0 | - | 4.69 | 26,175 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,992 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,618 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,946 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,987 |
| Asia Geography Quiz #1 | 0 | - | 4.78 | 53,332 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,328 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,158 |
| Flags of Oceania | 0 | - | 5.00 | 255,231 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 26,921 |
| Word Chain - Australia | 0 | - | 4.37 | 38,014 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,060 |
| Regions of New Zealand | 0 | - | 4.85 | 28,141 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,347 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,953 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,429 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,421 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,117 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,022 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,523 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,365 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,907 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,100 |
| Name a Valid African Country | 0 | - | 4.98 | 152,946 |
| Palau Country Quiz | 0 | - | 4.89 | 22,845 |
| Australia Country Quiz | 0 | - | 4.43 | 69,285 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,297 |
| Tonga Country Quiz | 0 | - | 4.82 | 20,351 |
| South American Geography Quiz #2 | 0 | - | 4.62 | 39,198 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,471 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,184 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,399 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,148 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,561 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,230 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,184 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,823 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,260 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,294 |
| Name the English Monarchs | 0 | - | 4.92 | 497,946 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,730 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,571 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,059 |
| Topological Map of Africa Quiz | 0 | - | 4.80 | 21,140 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,586 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,654,830 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,264 |
| U.S. History for Dummies | 0 | - | 4.47 | 82,487 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,855 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,976 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,904 |
| The Trojan War | 0 | - | 4.83 | 39,430 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,967 |
| Name that Greek Letter | 0 | - | 4.94 | 321,686 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,542 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,051 |
| Roman Emperors | 0 | - | 4.95 | 118,495 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,678 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,668 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,188 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,948 |
| Animals of Australia | 0 | - | 4.52 | 42,155 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,243 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,363 |
| History of Russia Quiz | 0 | - | 4.49 | 31,795 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,095 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,204 |
| 101 Figures from Greek Mythology | 0 | - | 5.00 | 124,302 |
| History of Italy | 0 | - | 4.55 | 31,817 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,483 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,350 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,982 |
| Geography of Spain | 0 | - | 4.59 | 21,966 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,401 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,114 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,542 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 423,787 |
| American History Quotes #1 | 0 | - | 4.37 | 95,693 |
| American History Quotes #2 | 0 | - | 4.38 | 41,226 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,078 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,583 |
| Topological Map of Mainland Europe | 0 | - | 4.39 | 28,568 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,552 |
| German Groups of Things | 0 | - | 4.46 | 38,306 |
| Ancient Greek Words | 0 | - | 4.92 | 110,707 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,618 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,965 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,110 |
| Geography of Egypt | 0 | - | 4.60 | 21,415 |
| Inventions by Country #1 | 0 | - | 4.46 | 54,887 |
| History of India | 0 | - | 4.61 | 21,286 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,436 |
| History of South Africa | 0 | - | 4.60 | 17,602 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,264 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,593 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,875 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,680 |
| Valid Answer - U.S. History | 0 | - | 4.24 | 22,450 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,585 |
| Official European Union Languages | 0 | - | 4.97 | 236,569 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,707 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,223 |
| History of Austria | 0 | - | 4.70 | 17,748 |
| Geography of the French Empire | 0 | - | 4.48 | 26,936 |
| The French Revolution | 0 | - | 4.46 | 23,785 |
| History of France | 0 | - | 4.59 | 56,057 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,384 |
| Figures from Greek Mythology | 0 | - | 4.91 | 184,967 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,581 |
| The Vikings! | 0 | - | 4.46 | 28,246 |
| The Portuguese Empire | 0 | - | 4.54 | 11,991 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,179 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,783 |
| Geography of the British Empire | 0 | - | 4.48 | 39,474 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,440,536 |
| Asia Map Quiz | 0 | - | 4.99 | 907,089 |
| History of Iran | 0 | - | 4.65 | 16,272 |
| Geography of China | 0 | - | 4.21 | 13,874 |
| History of China | 0 | - | 4.37 | 56,695 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,019 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,170 |
| Countries by Founding Story | 0 | - | 4.95 | 76,543 |
| Independence from Whom | 0 | - | 4.99 | 209,693 |
| Political Movements by Country | 0 | - | 4.46 | 72,262 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,751 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,998 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.68 | 55,179 |
| Countries that Beat India | 0 | - | 4.41 | 62,594 |
| Countries of Africa | 0 | - | 5.00 | 2,508,069 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,822 |
| African East Coast | 0 | - | 4.96 | 95,057 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,929 |
| Countries that Beat South Africa | 0 | - | 4.69 | 42,064 |
| Countries that Beat D.R. Congo | 0 | - | 4.74 | 41,515 |
| Marshall Islands Country Quiz | 0 | - | 4.61 | 20,526 |
| Fiji Country Quiz | 0 | - | 4.78 | 24,092 |
| Kiribati Country Quiz | 0 | - | 4.70 | 18,921 |
| Federated States of Micronesia Country Quiz | 0 | - | 4.63 | 21,522 |
| Australia Map Quiz | 0 | - | 4.94 | 342,505 |
| AFL Teams | 0 | - | 4.40 | 39,753 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,685 |
| Vanuatu Country Quiz | 0 | - | 4.59 | 22,734 |
| Solomon Islands Country Quiz | 0 | - | 4.56 | 18,938 |
| Nauru Country Quiz | 0 | - | 4.53 | 23,174 |
| Papua New Guinea Country Quiz | 0 | - | 4.60 | 30,501 |
| Samoa Country Quiz | 0 | - | 4.80 | 20,648 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,614 |
| History of Mexico | 0 | - | 4.58 | 15,231 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,992 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,719 |
| 75 Americans Named John | 0 | - | 4.41 | 23,825 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 32,994 |
| Last Names in U.S. History #2 | 0 | - | 4.39 | 17,498 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,048 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,162 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,211 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,092 |
| Countries That Use the Euro | 0 | - | 4.96 | 103,007 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,318 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,542 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,572 |
| The Only European Country ... | 0 | - | 4.91 | 213,856 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,550 |
| Austria... or Australia? | 0 | - | 4.68 | 103,873 |
| Word Chain - France | 0 | - | 4.38 | 42,583 |
| French History Multiple Choice | 0 | - | 4.55 | 32,879 |
| History of Germany | 0 | - | 4.39 | 52,615 |
| Countries that Beat Greece | 0 | - | 4.52 | 48,588 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,779 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,771 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 72,906 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,437 |
| Italian Foods | 0 | - | 4.31 | 72,202 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,955 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,535 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,670 |
| Roman Names for Places | 0 | - | 4.62 | 57,878 |
| Byzantine History | 0 | - | 4.91 | 28,621 |
| History of The Netherlands | 0 | - | 4.46 | 17,311 |
| Countries that Beat the Netherlands | 0 | - | 4.56 | 36,144 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,474 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,026 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,569 |
