| Brazil States Map Quiz | 0 | - | 4.85 | 47,377 |
| States of Brazil | 0 | - | 4.98 | 86,366 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,511 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,060 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,278 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,586 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,451 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 19,882 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,092 |
| Countries that Beat Brazil | 0 | - | 4.49 | 67,870 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 39,972 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,645 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,207 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,756 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,871 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,996 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,086 |
| Name a Valid African Country | 0 | - | 4.98 | 152,924 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,326 |
| States of Mexico | 0 | - | 4.95 | 173,312 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,776 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,143 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,949 |
| Central American Countries | 0 | - | 4.98 | 155,022 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 145,847 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,135 |
| American History Quotes #1 | 0 | - | 4.37 | 95,684 |
| American History Quotes #2 | 0 | - | 4.38 | 41,223 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,075 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,489 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,174 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,142 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,927 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,403 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,384 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,097 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,719 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,226 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,517 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,247 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,349 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,700 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,550 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,040 |
| History of Mexico | 0 | - | 4.58 | 15,230 |
| South American Geography Quiz #2 | 0 | - | 4.62 | 39,190 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,469 |
| Brazil Country Quiz | 0 | - | 4.52 | 101,075 |
| Brazil Cities Map Quiz | 0 | - | 4.62 | 36,365 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,309 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,653,473 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,228 |
| U.S. History for Dummies | 0 | - | 4.47 | 82,471 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,136 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,957 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,796 |
| Name that Greek Letter | 0 | - | 4.94 | 321,632 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,021 |
| Name the English Monarchs | 0 | - | 4.92 | 497,823 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,576 |
| Topological Map of Africa Quiz | 0 | - | 4.80 | 21,134 |
| Which City in Latin America? | 0 | - | 4.63 | 46,836 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,203 |
| Rivers of the United States | 0 | - | 4.93 | 65,501 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,547 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,295 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,431 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,237 |
| Last Names in U.S. History #2 | 0 | - | 4.39 | 17,496 |
| The American Civil War | 0 | - | 4.62 | 52,153 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,738 |
| Random General Knowledge - U.S. States | 0 | - | 4.46 | 41,751 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,559 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,843 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,880 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,093 |
| The Trojan War | 0 | - | 4.83 | 39,425 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,517 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,039 |
| Roman Emperors | 0 | - | 4.95 | 118,452 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,340 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,665 |
| Geography of Spain | 0 | - | 4.59 | 21,960 |
| People Buried at Westminster Abbey | 0 | - | 4.67 | 14,195 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,099 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,176 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,936 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,859 |
| Belize Country Quiz | 0 | - | 4.85 | 20,802 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,050 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,400 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 423,635 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,516 |
| Hawaiian Islands | 0 | - | 4.83 | 42,425 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,085 |
| U.S. State Flags | 0 | - | 4.89 | 167,029 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,402 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,504 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,475 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,643 |
| Which City in Canada? | 0 | - | 4.83 | 56,649 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,294 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,022 |
| History of Russia Quiz | 0 | - | 4.49 | 31,788 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,000 |
| Ancient Greek Words | 0 | - | 4.92 | 110,683 |
| History of Italy | 0 | - | 4.55 | 31,813 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,477 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,614 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,478 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,979 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,382 |
| The Vietnam War | 0 | - | 4.43 | 35,291 |
| History of India | 0 | - | 4.61 | 21,281 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,802 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,502 |
| History of South Africa | 0 | - | 4.60 | 17,599 |
| Word Chain - Australia | 0 | - | 4.37 | 38,014 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,754 |
| Mexican Foods | 0 | - | 4.07 | 14,609 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,321 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,668 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,260 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,879 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,669 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,811 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,662 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,518,205 |
| Europe Map Quiz | 0 | - | 5.00 | 4,730,761 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,986 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,610 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,941 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,979 |
| Topological Map of Mainland Europe | 0 | - | 4.39 | 28,565 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,410 |
| History of Austria | 0 | - | 4.70 | 17,745 |
| Geography of the French Empire | 0 | - | 4.48 | 26,926 |
| The French Revolution | 0 | - | 4.46 | 23,782 |
| History of France | 0 | - | 4.59 | 56,019 |
| German Groups of Things | 0 | - | 4.46 | 38,305 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,382 |
| Figures from Greek Mythology | 0 | - | 4.91 | 184,916 |
| The Vikings! | 0 | - | 4.45 | 28,244 |
| The Portuguese Empire | 0 | - | 4.54 | 11,989 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,939 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,171 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,762 |
| Geography of the British Empire | 0 | - | 4.48 | 39,469 |
| Asia Geography Quiz #1 | 0 | - | 4.78 | 53,325 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,319 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,146 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,085 |
| History of Iran | 0 | - | 4.65 | 16,271 |
| Geography of Egypt | 0 | - | 4.60 | 21,411 |
| Geography of China | 0 | - | 4.21 | 13,872 |
| History of China | 0 | - | 4.37 | 56,686 |
| Political Movements by Country | 0 | - | 4.46 | 72,254 |
| Inventions by Country #1 | 0 | - | 4.46 | 54,883 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.68 | 55,165 |
| Countries that Beat India | 0 | - | 4.41 | 62,584 |
| Countries of Africa | 0 | - | 5.00 | 2,507,343 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,092 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,801 |
| African East Coast | 0 | - | 4.96 | 95,029 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,912 |
| Countries that Beat South Africa | 0 | - | 4.69 | 42,059 |
| Countries that Beat D.R. Congo | 0 | - | 4.74 | 41,506 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,200 |
| Oceania Geography Quiz | 0 | - | 4.55 | 21,977 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,782 |
| Australian Capitals | 0 | - | 4.92 | 62,593 |
| Australia Map Quiz | 0 | - | 4.94 | 342,448 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,675 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,611 |
| Mexico Country Quiz | 0 | - | 4.49 | 71,968 |
| Mexico Cities Map Quiz | 0 | - | 4.77 | 33,313 |
| South American Physical Geography | 0 | - | 4.58 | 18,269 |
| Which South American Country? | 0 | - | 4.69 | 51,721 |
| Argentina Country Quiz | 0 | - | 4.53 | 57,078 |
| Chile Country Quiz | 0 | - | 4.75 | 39,718 |
| Peru Country Quiz | 0 | - | 4.54 | 48,298 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 31,900 |
| Cuba Country Quiz | 0 | - | 4.69 | 51,156 |
| Jamaica Country Quiz | 0 | - | 4.58 | 34,858 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,339 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,471 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,705 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,375 |
| Win the U.S. Presidential Election | 0 | - | 4.80 | 618,320 |
| States that Beat Alaska | 0 | - | 4.49 | 26,383 |
| California Cities Map Quiz | 0 | - | 4.50 | 87,637 |
| Fictional Characters from California by Picture | 0 | - | 4.23 | 22,472 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,626 |
| New York Cities Map Quiz | 0 | - | 4.54 | 42,039 |
| Fictional Characters from New York | 0 | - | 4.07 | 21,374 |
| Six Flags Over Texas | 0 | - | 4.79 | 63,007 |
| U.S. History A-Z #1 | 0 | - | 4.39 | 29,322 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 32,991 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.69 | 1,380,005 |
| US States by Borders in 30 Seconds | 0 | - | 4.68 | 2,664,423 |
