| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,965 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,349 |
| Australian Capitals | 0 | - | 4.92 | 62,583 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,481 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,534 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,381 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 19,842 |
| Oceania Geography Quiz | 0 | - | 4.55 | 21,965 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,715 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,830 |
| Australian States and Territories | 0 | - | 4.95 | 140,539 |
| Australian Immigration by Country | 0 | - | 4.81 | 76,986 |
| Australia True or False | 0 | - | 4.87 | 56,455 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,485 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,783 |
| New Zealand Country Quiz | 0 | - | 4.68 | 75,416 |
| Non-Stop Flights to New Zealand | 0 | - | 4.46 | 47,666 |
| Countries that Beat New Zealand | 0 | - | 4.69 | 26,130 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,958 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,570 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,906 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,944 |
| Asia Geography Quiz #1 | 0 | - | 4.78 | 53,298 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,293 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,135 |
| Flags of Oceania | 0 | - | 5.00 | 254,547 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 26,873 |
| Word Chain - Australia | 0 | - | 4.37 | 37,999 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,007 |
| Regions of New Zealand | 0 | - | 4.85 | 28,097 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,242 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,746 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,279 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,222 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 69,973 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 55,892 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,480 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,234 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,692 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 90,951 |
| Name a Valid African Country | 0 | - | 4.98 | 152,793 |
| Palau Country Quiz | 0 | - | 4.89 | 22,814 |
| Australia Country Quiz | 0 | - | 4.43 | 69,230 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,273 |
| Tonga Country Quiz | 0 | - | 4.82 | 20,331 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,169 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,449 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,015 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,363 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,088 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,181 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 273,942 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 164,876 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,210 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 112,993 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,087 |
| Name the English Monarchs | 0 | - | 4.92 | 497,301 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,534 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,420 |
| Name a Valid Asian Country | 0 | - | 4.98 | 119,922 |
| Topological Map of Africa Quiz | 0 | - | 4.80 | 21,102 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,364 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,648,061 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,105 |
| U.S. History for Dummies | 0 | - | 4.47 | 82,402 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,760 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,831 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,752 |
| The Trojan War | 0 | - | 4.83 | 39,390 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,097 |
| Name that Greek Letter | 0 | - | 4.94 | 321,403 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,318 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 83,952 |
| Roman Emperors | 0 | - | 4.95 | 118,265 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,581 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,010 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,109 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,886 |
| Animals of Australia | 0 | - | 4.52 | 42,134 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,214 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 525,966 |
| History of Russia Quiz | 0 | - | 4.49 | 31,770 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,080 |
| Olympian Gods Quiz | 0 | - | 4.96 | 494,492 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,021 |
| History of Italy | 0 | - | 4.55 | 31,796 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,458 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,267 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,957 |
| Geography of Spain | 0 | - | 4.59 | 21,937 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,353 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,033 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,309 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 423,217 |
| American History Quotes #1 | 0 | - | 4.37 | 95,648 |
| American History Quotes #2 | 0 | - | 4.38 | 41,211 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,060 |
| Europe Map Quiz | 0 | - | 5.00 | 4,726,858 |
| Topological Map of Mainland Europe | 0 | - | 4.39 | 28,531 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,004 |
| German Groups of Things | 0 | - | 4.46 | 38,286 |
| Ancient Greek Words | 0 | - | 4.92 | 110,530 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,539 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,846 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 276,882 |
| Geography of Egypt | 0 | - | 4.60 | 21,392 |
| Inventions by Country #1 | 0 | - | 4.46 | 54,862 |
| History of India | 0 | - | 4.61 | 21,262 |
| Africa Map Quiz | 0 | - | 5.00 | 2,102,528 |
| History of South Africa | 0 | - | 4.60 | 17,590 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,229 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,308 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,571 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,588 |
| Valid Answer - U.S. History | 0 | - | 4.24 | 22,432 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,508 |
| Official European Union Languages | 0 | - | 4.97 | 236,324 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,588 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,784 |
| History of Austria | 0 | - | 4.70 | 17,734 |
| Geography of the French Empire | 0 | - | 4.48 | 26,910 |
| The French Revolution | 0 | - | 4.46 | 23,745 |
| History of France | 0 | - | 4.59 | 55,861 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,368 |
| Figures from Greek Mythology | 0 | - | 4.91 | 184,643 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,053 |
| The Vikings! | 0 | - | 4.45 | 28,234 |
| The Portuguese Empire | 0 | - | 4.54 | 11,979 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,152 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,686 |
| Geography of the British Empire | 0 | - | 4.48 | 39,453 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,436,905 |
| Asia Map Quiz | 0 | - | 4.99 | 905,593 |
| History of Iran | 0 | - | 4.65 | 16,256 |
| Geography of China | 0 | - | 4.24 | 13,863 |
| History of China | 0 | - | 4.37 | 56,635 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,578 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,077 |
| Countries by Founding Story | 0 | - | 4.95 | 76,440 |
| Independence from Whom | 0 | - | 4.99 | 209,434 |
| Political Movements by Country | 0 | - | 4.46 | 72,219 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,576 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,937 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.68 | 55,124 |
| Countries that Beat India | 0 | - | 4.41 | 62,532 |
| Countries of Africa | 0 | - | 5.00 | 2,503,948 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,694 |
| African East Coast | 0 | - | 4.96 | 94,901 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,766 |
| Countries that Beat South Africa | 0 | - | 4.69 | 42,010 |
| Countries that Beat D.R. Congo | 0 | - | 4.74 | 41,479 |
| Marshall Islands Country Quiz | 0 | - | 4.61 | 20,495 |
| Fiji Country Quiz | 0 | - | 4.78 | 24,063 |
| Kiribati Country Quiz | 0 | - | 4.70 | 18,893 |
| Federated States of Micronesia Country Quiz | 0 | - | 4.63 | 21,489 |
| Australia Map Quiz | 0 | - | 4.94 | 342,200 |
| AFL Teams | 0 | - | 4.40 | 39,672 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,636 |
| Vanuatu Country Quiz | 0 | - | 4.59 | 22,701 |
| Solomon Islands Country Quiz | 0 | - | 4.56 | 18,909 |
| Nauru Country Quiz | 0 | - | 4.53 | 23,144 |
| Papua New Guinea Country Quiz | 0 | - | 4.60 | 30,463 |
| Samoa Country Quiz | 0 | - | 4.80 | 20,627 |
| Hispanic Last Names in the U.S. | 0 | - | 4.30 | 54,600 |
| History of Mexico | 0 | - | 4.58 | 15,216 |
| United States Map Quiz | 0 | - | 4.98 | 4,139,421 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,658 |
| 75 Americans Named John | 0 | - | 4.41 | 23,816 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 32,974 |
| Last Names in U.S. History #2 | 0 | - | 4.39 | 17,484 |
| Canadian Prime Ministers | 0 | - | 4.63 | 56,955 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,805 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,150 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,078 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,696 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,036 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,478 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,313 |
| The Only European Country ... | 0 | - | 4.91 | 213,445 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,298 |
| Austria... or Australia? | 0 | - | 4.68 | 103,809 |
| Word Chain - France | 0 | - | 4.38 | 42,563 |
| French History Multiple Choice | 0 | - | 4.55 | 32,850 |
| History of Germany | 0 | - | 4.39 | 52,586 |
| Countries that Beat Greece | 0 | - | 4.52 | 48,533 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,736 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,745 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 72,783 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,401 |
| Italian Foods | 0 | - | 4.30 | 72,116 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,905 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,493 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,635 |
| Roman Names for Places | 0 | - | 4.62 | 57,813 |
| Byzantine History | 0 | - | 4.91 | 28,578 |
| History of The Netherlands | 0 | - | 4.46 | 17,296 |
| Countries that Beat the Netherlands | 0 | - | 4.56 | 36,118 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,460 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 36,995 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,523 |
