| French Geography Quiz #1 | 0 | - | 4.89 | 34,864 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,375 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,214 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 20,231 |
| South America Map Quiz | 0 | - | 5.00 | 1,551,967 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,408 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,012 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,137 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 903,012 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,210 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,295 |
| States of Mexico | 0 | - | 4.96 | 176,843 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,169 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,127 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,209 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,263 |
| States of Brazil | 0 | - | 4.97 | 88,682 |
| Central American Countries | 0 | - | 4.98 | 156,810 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 112,978 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 149,108 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,891 |
| American History Quotes #1 | 0 | - | 4.37 | 96,104 |
| American History Quotes #2 | 0 | - | 4.38 | 41,445 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,277 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,976 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,420 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,687 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,775 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,560 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,132 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,350 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 262,303 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,079 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,164 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,027 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,580 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,368 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,111 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,256 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,115 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,401 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,622 |
| Name a Valid African Country | 0 | - | 4.98 | 154,396 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,691 |
| History of Mexico | 0 | - | 4.58 | 15,339 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,968 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,619 |
| Chile Country Quiz | 0 | - | 4.75 | 40,136 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,811 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,709,370 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,215 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,206 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,591 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,398 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,035 |
| Name that Greek Letter | 0 | - | 4.93 | 324,209 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,226 |
| Name the English Monarchs | 0 | - | 4.91 | 504,094 |
| Prime Ministers of the UK | 0 | - | 4.95 | 440,184 |
| Which City in Latin America? | 0 | - | 4.63 | 47,072 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,596 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,932 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,673 |
| Countries that Beat Brazil | 0 | - | 4.49 | 68,832 |
| Rivers of the United States | 0 | - | 4.93 | 66,366 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,853 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,603 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,255 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,508 |
| Last Names in U.S. History #2 | 0 | - | 4.39 | 17,647 |
| The American Civil War | 0 | - | 4.62 | 52,506 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 507,960 |
| Random General Knowledge - U.S. States | 0 | - | 4.46 | 42,059 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,681 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,531 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,081 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,264 |
| The Trojan War | 0 | - | 4.83 | 39,806 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,278 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,661 |
| Roman Emperors | 0 | - | 4.95 | 120,425 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,000 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,529 |
| Geography of Spain | 0 | - | 4.59 | 22,109 |
| People Buried at Westminster Abbey | 0 | - | 4.67 | 14,279 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,766 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,116 |
| Topological Map of Africa Quiz | 0 | - | 4.80 | 21,456 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,271 |
| Belize Country Quiz | 0 | - | 4.85 | 21,015 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,246 |
| Names of Generations | 0 | - | 4.09 | 45,219 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,359 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 427,113 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 382,364 |
| Hawaiian Islands | 0 | - | 4.83 | 42,780 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,389 |
| U.S. State Flags | 0 | - | 4.88 | 171,388 |
| U.S. States that Border Canada | 0 | - | 4.91 | 185,614 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 221,423 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 134,654 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,240 |
| Which City in Canada? | 0 | - | 4.83 | 57,153 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,715 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,237 |
| History of Russia Quiz | 0 | - | 4.47 | 31,957 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,989 |
| Ancient Greek Words | 0 | - | 4.93 | 111,933 |
| History of Italy | 0 | - | 4.55 | 32,060 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,125 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,283 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,723 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,301 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,964 |
| The Vietnam War | 0 | - | 4.44 | 35,581 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,558 |
| History of South Africa | 0 | - | 4.60 | 17,723 |
| Word Chain - Australia | 0 | - | 4.38 | 38,173 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,785 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,866 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,601 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,108 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,831 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 192,649 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,493 |
| States That Beat Montana | 0 | - | 4.49 | 25,683 |
| Valid Answer - U.S. History | 0 | - | 4.24 | 22,557 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,545,481 |
| Europe Map Quiz | 0 | - | 5.00 | 4,772,159 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,361 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,020 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,310 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,303 |
| Topological Map of Mainland Europe | 0 | - | 4.39 | 28,907 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,681 |
| History of Austria | 0 | - | 4.70 | 17,911 |
| Geography of the French Empire | 0 | - | 4.45 | 27,157 |
| The French Revolution | 0 | - | 4.47 | 24,066 |
| History of France | 0 | - | 4.59 | 57,291 |
| German Groups of Things | 0 | - | 4.46 | 38,529 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,845 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,776 |
| The Vikings! | 0 | - | 4.46 | 28,370 |
| The Portuguese Empire | 0 | - | 4.58 | 12,086 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,463 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,407 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,685 |
| Geography of the British Empire | 0 | - | 4.48 | 39,739 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,559 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,611 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,290 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,738 |
| History of Iran | 0 | - | 4.66 | 16,380 |
| Geography of Egypt | 0 | - | 4.60 | 21,556 |
| Geography of China | 0 | - | 4.21 | 13,978 |
| History of China | 0 | - | 4.37 | 57,342 |
| History of India | 0 | - | 4.62 | 21,460 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 33,010 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,633 |
| Political Movements by Country | 0 | - | 4.46 | 72,626 |
| Inventions by Country #1 | 0 | - | 4.47 | 55,092 |
| Countries that Beat South Africa | 0 | - | 4.69 | 42,445 |
| Countries that Beat D.R. Congo | 0 | - | 4.77 | 41,885 |
| Oceania Map Quiz | 0 | - | 4.98 | 654,049 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,079 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,962 |
| Australian Capitals | 0 | - | 4.92 | 62,759 |
| Australia Map Quiz | 0 | - | 4.95 | 345,242 |
| Prime Ministers of Australia | 0 | - | 4.50 | 32,014 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,795 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,529 |
| South American Physical Geography | 0 | - | 4.58 | 18,368 |
| Which South American Country? | 0 | - | 4.69 | 52,006 |
| Argentina Country Quiz | 0 | - | 4.53 | 57,600 |
| Brazil Country Quiz | 0 | - | 4.52 | 102,003 |
| Brazil Cities Map Quiz | 0 | - | 4.62 | 36,718 |
| Ecuador Country Quiz | 0 | - | 4.60 | 31,909 |
| Peru Country Quiz | 0 | - | 4.54 | 48,763 |
| El Salvador Country Quiz | 0 | - | 4.63 | 31,775 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 32,238 |
| Cuba Country Quiz | 0 | - | 4.70 | 51,588 |
| Jamaica Country Quiz | 0 | - | 4.58 | 35,154 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,673 |
| United States Map Quiz | 0 | - | 4.98 | 4,163,888 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,260 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,557 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 630,293 |
| States that Beat Alaska | 0 | - | 4.49 | 26,543 |
| California Cities Map Quiz | 0 | - | 4.50 | 88,051 |
| Fictional Characters from California by Picture | 0 | - | 4.23 | 22,542 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,934 |
| New York Cities Map Quiz | 0 | - | 4.55 | 42,272 |
| Fictional Characters from New York | 0 | - | 4.09 | 21,417 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,455 |
| Events in U.S. History | 0 | - | 4.41 | 28,718 |
| U.S. History A-Z #1 | 0 | - | 4.36 | 30,200 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,134 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.70 | 1,394,102 |
| US States by Borders in 30 Seconds | 0 | - | 4.68 | 2,685,653 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,652 |
