| Colombia Country Quiz | 0 | - | 4.90 | 40,635 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,717 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,068 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,915 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 20,094 |
| South America Map Quiz | 0 | - | 5.00 | 1,547,346 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,246 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,326,315 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,304 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,498 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,877 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,619 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,283 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,096 |
| Name a Valid African Country | 0 | - | 4.98 | 153,770 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,936 |
| States of Mexico | 0 | - | 4.95 | 175,511 |
| Mexico States Map Quiz | 0 | - | 4.85 | 104,471 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,781 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,670 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,876 |
| States of Brazil | 0 | - | 4.97 | 87,663 |
| Central American Countries | 0 | - | 4.98 | 155,894 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 147,915 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,196 |
| American History Quotes #1 | 0 | - | 4.37 | 95,959 |
| American History Quotes #2 | 0 | - | 4.38 | 41,372 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,215 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,638 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,305 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,691 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,888 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 76,132 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,294 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,708 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 259,983 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,355 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,239 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,053 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 109,711 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,552 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,771 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,332 |
| History of Mexico | 0 | - | 4.58 | 15,291 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,312 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,559 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,688,234 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,516 |
| U.S. History for Dummies | 0 | - | 4.47 | 82,929 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,396 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,789 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,138 |
| Name that Greek Letter | 0 | - | 4.93 | 323,096 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,125 |
| Name the English Monarchs | 0 | - | 4.91 | 501,506 |
| Prime Ministers of the UK | 0 | - | 4.95 | 437,858 |
| Topological Map of Africa Quiz | 0 | - | 4.80 | 21,341 |
| Which City in Latin America? | 0 | - | 4.63 | 46,983 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,638 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,441 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,512 |
| Countries that Beat Brazil | 0 | - | 4.49 | 68,412 |
| Rivers of the United States | 0 | - | 4.93 | 66,074 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,545 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,105 |
| Countries Closest to Maine | 0 | - | 4.85 | 66,973 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,406 |
| Last Names in U.S. History #2 | 0 | - | 4.39 | 17,591 |
| The American Civil War | 0 | - | 4.62 | 52,372 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 505,484 |
| Random General Knowledge - U.S. States | 0 | - | 4.46 | 41,916 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,228 |
| Countries that Beat Canada | 0 | - | 4.90 | 87,294 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,468 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,195 |
| The Trojan War | 0 | - | 4.83 | 39,651 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,543 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,420 |
| Roman Emperors | 0 | - | 4.95 | 119,658 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,662 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,148 |
| Geography of Spain | 0 | - | 4.59 | 22,051 |
| People Buried at Westminster Abbey | 0 | - | 4.67 | 14,240 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,471 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,695 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,340 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,103 |
| Belize Country Quiz | 0 | - | 4.85 | 20,933 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,176 |
| Names of Generations | 0 | - | 4.10 | 44,180 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,988 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 425,878 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 381,099 |
| Hawaiian Islands | 0 | - | 4.83 | 42,652 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,272 |
| U.S. State Flags | 0 | - | 4.89 | 169,735 |
| U.S. States that Border Canada | 0 | - | 4.91 | 184,357 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,343 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,849 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,010 |
| Which City in Canada? | 0 | - | 4.82 | 56,944 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,764 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,750 |
| History of Russia Quiz | 0 | - | 4.49 | 31,880 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,599 |
| Ancient Greek Words | 0 | - | 4.93 | 111,358 |
| History of Italy | 0 | - | 4.55 | 31,936 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,323 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,005 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,613 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,166 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,794 |
| The Vietnam War | 0 | - | 4.44 | 35,482 |
| History of India | 0 | - | 4.61 | 21,396 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,938 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,884 |
| History of South Africa | 0 | - | 4.60 | 17,661 |
| Word Chain - Australia | 0 | - | 4.38 | 38,115 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,768 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,704 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,801 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,463 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,063 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,753 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 191,352 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,154 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,533,860 |
| Europe Map Quiz | 0 | - | 5.00 | 4,755,632 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,211 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,868 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,157 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,184 |
| Topological Map of Mainland Europe | 0 | - | 4.39 | 28,778 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,260 |
| History of Austria | 0 | - | 4.70 | 17,835 |
| Geography of the French Empire | 0 | - | 4.45 | 27,025 |
| The French Revolution | 0 | - | 4.46 | 23,903 |
| History of France | 0 | - | 4.59 | 56,838 |
| German Groups of Things | 0 | - | 4.46 | 38,440 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,464 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,456 |
| The Vikings! | 0 | - | 4.46 | 28,319 |
| The Portuguese Empire | 0 | - | 4.58 | 12,048 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,076 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,307 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,303 |
| Geography of the British Empire | 0 | - | 4.48 | 39,631 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,473 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,497 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,224 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,690 |
| History of Iran | 0 | - | 4.66 | 16,340 |
| Geography of Egypt | 0 | - | 4.60 | 21,493 |
| Geography of China | 0 | - | 4.21 | 13,936 |
| History of China | 0 | - | 4.37 | 57,048 |
| Political Movements by Country | 0 | - | 4.46 | 72,466 |
| Inventions by Country #1 | 0 | - | 4.47 | 54,997 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,390 |
| Countries that Beat India | 0 | - | 4.41 | 62,866 |
| Countries of Africa | 0 | - | 5.00 | 2,530,235 |
| Africa Map Quiz | 0 | - | 5.00 | 2,114,728 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,617 |
| African East Coast | 0 | - | 4.96 | 95,832 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,616 |
| Countries that Beat South Africa | 0 | - | 4.69 | 42,274 |
| Countries that Beat D.R. Congo | 0 | - | 4.74 | 41,711 |
| Oceania Map Quiz | 0 | - | 4.98 | 640,628 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,034 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,470 |
| Australian Capitals | 0 | - | 4.92 | 62,695 |
| Australia Map Quiz | 0 | - | 4.95 | 343,850 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,853 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,714 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,331 |
| South American Physical Geography | 0 | - | 4.58 | 18,330 |
| Which South American Country? | 0 | - | 4.69 | 51,896 |
| Argentina Country Quiz | 0 | - | 4.53 | 57,411 |
| Brazil Country Quiz | 0 | - | 4.52 | 101,639 |
| Brazil Cities Map Quiz | 0 | - | 4.62 | 36,566 |
| Chile Country Quiz | 0 | - | 4.75 | 39,992 |
| Ecuador Country Quiz | 0 | - | 4.60 | 31,817 |
| Peru Country Quiz | 0 | - | 4.54 | 48,582 |
| El Salvador Country Quiz | 0 | - | 4.63 | 31,662 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 32,134 |
| Cuba Country Quiz | 0 | - | 4.70 | 51,429 |
| Jamaica Country Quiz | 0 | - | 4.58 | 35,032 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,547 |
| United States Map Quiz | 0 | - | 4.98 | 4,154,035 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,047 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,502 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 625,346 |
| States that Beat Alaska | 0 | - | 4.49 | 26,480 |
| California Cities Map Quiz | 0 | - | 4.50 | 87,882 |
| Fictional Characters from California by Picture | 0 | - | 4.23 | 22,508 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,820 |
| New York Cities Map Quiz | 0 | - | 4.55 | 42,193 |
| Fictional Characters from New York | 0 | - | 4.09 | 21,398 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,272 |
| U.S. History A-Z #1 | 0 | - | 4.36 | 29,947 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,089 |
