| Brazil States Map Quiz | 0 | - | 4.86 | 48,647 |
| States of Brazil | 0 | - | 4.97 | 89,808 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,105 |
| Countries Bordering Brazil | 0 | - | 4.96 | 132,282 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,921 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,729 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,580 |
| Topological Map of Asia Quiz | 0 | - | 4.82 | 20,461 |
| South America Map Quiz | 0 | - | 5.00 | 1,557,060 |
| Countries that Beat Brazil | 0 | - | 4.49 | 69,265 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,565 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,180 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,707 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,124 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,475 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,694 |
| States of Mexico | 0 | - | 4.96 | 178,371 |
| Mexico States Map Quiz | 0 | - | 4.85 | 105,692 |
| Countries of South America with an Empty Map | 0 | - | 4.95 | 105,531 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.93 | 54,916 |
| Central American Countries | 0 | - | 4.98 | 157,385 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,624 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 150,753 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,597 |
| American History Quotes #1 | 0 | - | 4.37 | 96,212 |
| American History Quotes #2 | 0 | - | 4.38 | 41,512 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,348 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,993 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,006 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,014 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,427 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,613 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,854 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 71,900 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,812 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,945 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,623 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,845 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,150 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,409 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,779 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,833 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,581 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,590 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,477 |
| Name a Valid African Country | 0 | - | 4.98 | 155,098 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,828 |
| History of Mexico | 0 | - | 4.52 | 15,367 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 44,205 |
| South American Geography Quiz #1 | 0 | - | 4.63 | 32,914 |
| Brazil Country Quiz | 0 | - | 4.52 | 102,405 |
| Brazil Cities Map Quiz | 0 | - | 4.62 | 36,846 |
| Colombia Country Quiz | 0 | - | 4.90 | 41,021 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,727,335 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,833 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,434 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,765 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,130 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,232 |
| Name that Greek Letter | 0 | - | 4.93 | 325,072 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,316 |
| Name the English Monarchs | 0 | - | 4.91 | 506,790 |
| Prime Ministers of the UK | 0 | - | 4.95 | 442,554 |
| Which City in Latin America? | 0 | - | 4.63 | 47,158 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,592 |
| Rivers of the United States | 0 | - | 4.93 | 66,712 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,728 |
| Countries Closest to Alaska | 0 | - | 4.93 | 125,182 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,630 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,593 |
| Last Names in U.S. History #2 | 0 | - | 4.39 | 17,704 |
| The American Civil War | 0 | - | 4.62 | 52,640 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 510,379 |
| Random General Knowledge - U.S. States | 0 | - | 4.46 | 42,179 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 50,152 |
| Countries that Beat Canada | 0 | - | 4.90 | 99,032 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,646 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,353 |
| The Trojan War | 0 | - | 4.83 | 40,006 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,019 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,639 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,612 |
| Roman Emperors | 0 | - | 4.95 | 121,274 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,249 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,906 |
| Geography of Spain | 0 | - | 4.59 | 22,190 |
| People Buried at Westminster Abbey | 0 | - | 4.67 | 14,334 |
| British History Quiz for Dummies | 0 | - | 4.70 | 79,079 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,501 |
| Topological Map of Africa Quiz | 0 | - | 4.80 | 21,631 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,429 |
| Belize Country Quiz | 0 | - | 4.85 | 21,102 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,306 |
| Names of Generations | 0 | - | 4.09 | 45,545 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,751 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,620 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,685 |
| Hawaiian Islands | 0 | - | 4.83 | 42,962 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,528 |
| U.S. State Flags | 0 | - | 4.89 | 173,100 |
| U.S. States that Border Canada | 0 | - | 4.91 | 186,787 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,532 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,665 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,478 |
| Which City in Canada? | 0 | - | 4.83 | 57,371 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,639 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,775 |
| History of Russia Quiz | 0 | - | 4.47 | 32,009 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,912 |
| Ancient Greek Words | 0 | - | 4.93 | 112,527 |
| History of Italy | 0 | - | 4.55 | 32,159 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,972 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,533 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,830 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,433 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,110 |
| The Vietnam War | 0 | - | 4.44 | 35,663 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,781 |
| History of South Africa | 0 | - | 4.60 | 17,767 |
| Word Chain - Australia | 0 | - | 4.38 | 38,250 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,799 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,944 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,757 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,150 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,866 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 193,864 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,896 |
| States That Beat Montana | 0 | - | 4.49 | 25,738 |
| Valid Answer - U.S. History | 0 | - | 4.24 | 22,605 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,556,445 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,583 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,536 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,199 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,473 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,438 |
| Topological Map of Mainland Europe | 0 | - | 4.39 | 29,083 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,927 |
| History of Austria | 0 | - | 4.70 | 17,978 |
| Geography of the French Empire | 0 | - | 4.45 | 27,221 |
| The French Revolution | 0 | - | 4.47 | 24,151 |
| History of France | 0 | - | 4.61 | 57,654 |
| German Groups of Things | 0 | - | 4.47 | 38,645 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,562 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,980 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,956 |
| The Vikings! | 0 | - | 4.46 | 28,409 |
| The Portuguese Empire | 0 | - | 4.58 | 12,113 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,854 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,468 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,292 |
| Geography of the British Empire | 0 | - | 4.48 | 39,852 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,666 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,741 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,368 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,795 |
| History of Iran | 0 | - | 4.66 | 16,426 |
| Geography of Egypt | 0 | - | 4.60 | 21,620 |
| Geography of China | 0 | - | 4.21 | 14,024 |
| History of China | 0 | - | 4.35 | 57,610 |
| History of India | 0 | - | 4.62 | 21,519 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 33,099 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,470 |
| Political Movements by Country | 0 | - | 4.46 | 72,790 |
| Inventions by Country #1 | 0 | - | 4.47 | 55,192 |
| Countries that Beat South Africa | 0 | - | 4.69 | 42,706 |
| Countries that Beat D.R. Congo | 0 | - | 4.75 | 42,029 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,695 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,139 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,495 |
| Australian Capitals | 0 | - | 4.92 | 62,839 |
| Australia Map Quiz | 0 | - | 4.95 | 346,254 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,208 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,864 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,773 |
| South American Physical Geography | 0 | - | 4.58 | 18,407 |
| Which South American Country? | 0 | - | 4.69 | 52,126 |
| Argentina Country Quiz | 0 | - | 4.53 | 57,822 |
| Chile Country Quiz | 0 | - | 4.75 | 40,308 |
| Ecuador Country Quiz | 0 | - | 4.60 | 32,022 |
| Peru Country Quiz | 0 | - | 4.54 | 48,947 |
| El Salvador Country Quiz | 0 | - | 4.63 | 31,898 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 32,354 |
| Cuba Country Quiz | 0 | - | 4.70 | 51,766 |
| Jamaica Country Quiz | 0 | - | 4.59 | 35,254 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,821 |
| United States Map Quiz | 0 | - | 4.98 | 4,172,040 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,448 |
| 75 Americans Named John | 0 | - | 4.41 | 23,977 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,603 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 636,150 |
| States that Beat Alaska | 0 | - | 4.49 | 26,604 |
| California Cities Map Quiz | 0 | - | 4.50 | 88,197 |
| Fictional Characters from California by Picture | 0 | - | 4.23 | 22,581 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 61,015 |
| New York Cities Map Quiz | 0 | - | 4.55 | 42,374 |
| Fictional Characters from New York | 0 | - | 4.09 | 21,441 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,617 |
| Events in U.S. History | 0 | - | 4.41 | 28,832 |
| U.S. History A-Z #1 | 0 | - | 4.36 | 30,536 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,203 |
