| French Geography Quiz #1 | 0 | - | 4.89 | 35,099 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,718 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,571 |
| Topological Map of Asia Quiz | 0 | - | 4.82 | 20,458 |
| South America Map Quiz | 0 | - | 5.00 | 1,556,957 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,559 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,978 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,692 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,086 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,466 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,690 |
| States of Mexico | 0 | - | 4.96 | 178,339 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,678 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,516 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.93 | 54,900 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,630 |
| States of Brazil | 0 | - | 4.97 | 89,762 |
| Central American Countries | 0 | - | 4.98 | 157,380 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,619 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 150,697 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,583 |
| American History Quotes #1 | 0 | - | 4.37 | 96,206 |
| American History Quotes #2 | 0 | - | 4.38 | 41,510 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,344 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,951 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,979 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,987 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,413 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,556 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,828 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 71,883 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,764 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,931 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,615 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,824 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,134 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,397 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,761 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,818 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,566 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,587 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,462 |
| Name a Valid African Country | 0 | - | 4.98 | 155,073 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,827 |
| History of Mexico | 0 | - | 4.52 | 15,367 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 44,182 |
| South American Geography Quiz #1 | 0 | - | 4.63 | 32,912 |
| Chile Country Quiz | 0 | - | 4.75 | 40,296 |
| Colombia Country Quiz | 0 | - | 4.90 | 41,016 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,726,957 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,818 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,429 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,759 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,116 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,141 |
| Name that Greek Letter | 0 | - | 4.93 | 325,032 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,316 |
| Name the English Monarchs | 0 | - | 4.91 | 506,670 |
| Prime Ministers of the UK | 0 | - | 4.95 | 442,468 |
| Which City in Latin America? | 0 | - | 4.63 | 47,156 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,564 |
| Countries Bordering Brazil | 0 | - | 4.96 | 132,279 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,911 |
| Countries that Beat Brazil | 0 | - | 4.49 | 69,255 |
| Rivers of the United States | 0 | - | 4.93 | 66,701 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,712 |
| Countries Closest to Alaska | 0 | - | 4.93 | 125,173 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,622 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,591 |
| Last Names in U.S. History #2 | 0 | - | 4.39 | 17,703 |
| The American Civil War | 0 | - | 4.62 | 52,631 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 510,316 |
| Random General Knowledge - U.S. States | 0 | - | 4.46 | 42,176 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 50,139 |
| Countries that Beat Canada | 0 | - | 4.90 | 99,024 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,633 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,351 |
| The Trojan War | 0 | - | 4.83 | 40,002 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,003 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,613 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,607 |
| Roman Emperors | 0 | - | 4.95 | 121,255 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,245 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,895 |
| Geography of Spain | 0 | - | 4.59 | 22,187 |
| People Buried at Westminster Abbey | 0 | - | 4.67 | 14,334 |
| British History Quiz for Dummies | 0 | - | 4.70 | 79,071 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,497 |
| Topological Map of Africa Quiz | 0 | - | 4.80 | 21,627 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,423 |
| Belize Country Quiz | 0 | - | 4.85 | 21,096 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,305 |
| Names of Generations | 0 | - | 4.09 | 45,541 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,743 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,591 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,666 |
| Hawaiian Islands | 0 | - | 4.83 | 42,959 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,520 |
| U.S. State Flags | 0 | - | 4.89 | 173,058 |
| U.S. States that Border Canada | 0 | - | 4.91 | 186,748 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,507 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,649 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,474 |
| Which City in Canada? | 0 | - | 4.83 | 57,368 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,613 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,762 |
| History of Russia Quiz | 0 | - | 4.47 | 32,009 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,872 |
| Ancient Greek Words | 0 | - | 4.93 | 112,516 |
| History of Italy | 0 | - | 4.55 | 32,156 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,910 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,525 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,827 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,429 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,103 |
| The Vietnam War | 0 | - | 4.44 | 35,662 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,778 |
| History of South Africa | 0 | - | 4.60 | 17,766 |
| Word Chain - Australia | 0 | - | 4.38 | 38,248 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,799 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,941 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,756 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,148 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,866 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 193,846 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,885 |
| States That Beat Montana | 0 | - | 4.49 | 25,737 |
| Valid Answer - U.S. History | 0 | - | 4.24 | 22,604 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,556,219 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,218 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,533 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,195 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,469 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,436 |
| Topological Map of Mainland Europe | 0 | - | 4.39 | 29,075 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,882 |
| History of Austria | 0 | - | 4.70 | 17,977 |
| Geography of the French Empire | 0 | - | 4.45 | 27,220 |
| The French Revolution | 0 | - | 4.47 | 24,149 |
| History of France | 0 | - | 4.61 | 57,641 |
| German Groups of Things | 0 | - | 4.47 | 38,642 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,561 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,978 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,922 |
| The Vikings! | 0 | - | 4.46 | 28,409 |
| The Portuguese Empire | 0 | - | 4.58 | 12,107 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,849 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,467 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,276 |
| Geography of the British Empire | 0 | - | 4.48 | 39,849 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,663 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,739 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,366 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,776 |
| History of Iran | 0 | - | 4.66 | 16,425 |
| Geography of Egypt | 0 | - | 4.60 | 21,619 |
| Geography of China | 0 | - | 4.21 | 14,023 |
| History of China | 0 | - | 4.35 | 57,588 |
| History of India | 0 | - | 4.62 | 21,518 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 33,099 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,454 |
| Political Movements by Country | 0 | - | 4.46 | 72,787 |
| Inventions by Country #1 | 0 | - | 4.47 | 55,191 |
| Countries that Beat South Africa | 0 | - | 4.69 | 42,700 |
| Countries that Beat D.R. Congo | 0 | - | 4.75 | 42,025 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,634 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,138 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,486 |
| Australian Capitals | 0 | - | 4.92 | 62,837 |
| Australia Map Quiz | 0 | - | 4.95 | 346,226 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,205 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,863 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,765 |
| South American Physical Geography | 0 | - | 4.58 | 18,406 |
| Which South American Country? | 0 | - | 4.69 | 52,124 |
| Argentina Country Quiz | 0 | - | 4.53 | 57,819 |
| Brazil Country Quiz | 0 | - | 4.52 | 102,396 |
| Brazil Cities Map Quiz | 0 | - | 4.62 | 36,846 |
| Ecuador Country Quiz | 0 | - | 4.60 | 32,016 |
| Peru Country Quiz | 0 | - | 4.54 | 48,938 |
| El Salvador Country Quiz | 0 | - | 4.63 | 31,892 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 32,350 |
| Cuba Country Quiz | 0 | - | 4.70 | 51,763 |
| Jamaica Country Quiz | 0 | - | 4.58 | 35,253 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,818 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,828 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,441 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,602 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 636,050 |
| States that Beat Alaska | 0 | - | 4.49 | 26,602 |
| California Cities Map Quiz | 0 | - | 4.50 | 88,195 |
| Fictional Characters from California by Picture | 0 | - | 4.23 | 22,577 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 61,012 |
| New York Cities Map Quiz | 0 | - | 4.55 | 42,370 |
| Fictional Characters from New York | 0 | - | 4.09 | 21,441 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,613 |
| Events in U.S. History | 0 | - | 4.41 | 28,832 |
| U.S. History A-Z #1 | 0 | - | 4.36 | 30,531 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,200 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.70 | 1,398,800 |
