| Prime Ministers of the UK | 0 | - | 4.96 | 436,231 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,085 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,765 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,240 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,670,065 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,545 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,955 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,273 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,413 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,633 |
| National Founders | 0 | - | 4.40 | 83,715 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,940 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,693 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 424,690 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,021 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 380,191 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 190,507 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,884 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 219,329 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,113 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,700 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,708 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,785 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,608 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,227 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,095 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,684 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,710 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,644 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,905 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,415 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,763 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,868 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,413 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,294 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,724 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,489 |
| Countries of the Popes | 0 | - | 4.79 | 127,531 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,610 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 118,454 |
| The Vietnam War | 0 | - | 4.43 | 35,377 |
| Political Movements by Country | 0 | - | 4.46 | 72,359 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,444 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,825 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,648 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,268 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,638 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,347 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,373 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,035 |
| Name that Greek Letter | 0 | - | 4.93 | 322,331 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,111 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,592 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,291 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,767 |
| Name the English Monarchs | 0 | - | 4.92 | 499,630 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,578 |
| Hindu Countries | 0 | - | 4.86 | 49,781 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,167 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,869 |
| Rivers of the United States | 0 | - | 4.93 | 65,747 |
| Arms Exports - United States | 0 | - | 4.75 | 61,660 |
| American Political Words | 0 | - | 4.39 | 23,372 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,204 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,833 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,272 |
| Presidential Middle Names | 0 | - | 4.41 | 59,876 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,924 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,117 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,251 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,704 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,694 |
| The American Civil War | 0 | - | 4.62 | 52,251 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 503,632 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.51 | 66,305 |
| U.S. States with the Most Billionaires | 0 | - | 4.51 | 50,213 |
| Top U.S. States in Crude Oil Production | 0 | - | 4.51 | 41,026 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,905 |
| Least Visited U.S. States by JetPunkers | 0 | - | 4.44 | 70,428 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,375 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,805 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,017 |
| The Trojan War | 0 | - | 4.83 | 39,536 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,036 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,931 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,228 |
| Roman Emperors | 0 | - | 4.95 | 119,046 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,606 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 79,807 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,329 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,860 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,818 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,147 |
| South America Flags Map Quiz | 0 | - | 4.95 | 87,067 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,733 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,020 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,829 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,619 |
| The American Revolution | 0 | - | 4.52 | 54,126 |
| Hawaiian Islands | 0 | - | 4.83 | 42,530 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,188 |
| American History Quotes #1 | 0 | - | 4.37 | 95,771 |
| American History Quotes #2 | 0 | - | 4.38 | 41,262 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,130 |
| U.S. State Flags | 0 | - | 4.89 | 168,438 |
| U.S. States that Border Canada | 0 | - | 4.91 | 183,414 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,826 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,382 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,828 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,416 |
| History of Russia Quiz | 0 | - | 4.49 | 31,831 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,010 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,894 |
| Ancient Greek Words | 0 | - | 4.93 | 111,019 |
| History of Italy | 0 | - | 4.55 | 31,880 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,364 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,813 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,545 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,070 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,887 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,690 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,267 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,620 |
| History of India | 0 | - | 4.61 | 21,331 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,209 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,591 |
| History of South Africa | 0 | - | 4.60 | 17,632 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,583 |
| Puerto Rico Trivia | 0 | - | 4.51 | 11,957 |
| American Monopoly Board - Map Quiz | 0 | - | 4.52 | 21,162 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,104 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,482 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.20 | 10,827 |
| U.S. Vice Presidents | 0 | - | 4.39 | 135,522 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,191 |
| First Ladies of the United States | 0 | - | 4.28 | 85,347 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,856 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,151 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,616 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,066 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,873 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,525,035 |
| Top 10 Most Jewish U.S. States | 0 | - | 4.31 | 42,825 |
| U.S. States by Hottest Recorded Temperature | 0 | - | 4.36 | 57,263 |
| States in a Tank of the U.S. Map | 0 | - | 4.47 | 31,117 |
| U.S. States Richer than Their Neighbors | 0 | - | 4.43 | 27,291 |
| Most Visited U.S. States by JetPunkers | 0 | - | 4.32 | 44,416 |
| Colleges by U.S. State - Multiple Choice | 0 | - | 4.57 | 22,966 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,724 |
| Europe Map Quiz | 0 | - | 5.00 | 4,742,450 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,825 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 210,694 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,523 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,789 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,141 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,740 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,425 |
| History of Austria | 0 | - | 4.70 | 17,792 |
| Geography of the French Empire | 0 | - | 4.45 | 26,983 |
| The French Revolution | 0 | - | 4.46 | 23,848 |
| History of France | 0 | - | 4.59 | 56,504 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,418 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,064 |
| Mythology A-Z | 0 | - | 4.31 | 37,081 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,645 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.26 | 101,929 |
| The Vikings! | 0 | - | 4.46 | 28,278 |
| The Portuguese Empire | 0 | - | 4.58 | 12,020 |
| Arthurian Legend | 0 | - | 4.33 | 25,071 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,441 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,255 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,043 |
| Geography of the British Empire | 0 | - | 4.48 | 39,566 |
| Pope Facts | 0 | - | 4.39 | 31,118 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,008 |
| History of Iran | 0 | - | 4.66 | 16,298 |
| The Iraq War | 0 | - | 4.47 | 15,586 |
| History of China | 0 | - | 4.37 | 56,865 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,001 |
| Communist Countries in History | 0 | - | 4.63 | 493,613 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,278 |
| Countries of Africa | 0 | - | 5.00 | 2,517,930 |
| Africa Map Quiz | 0 | - | 5.00 | 2,109,336 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,165 |
| African East Coast | 0 | - | 4.96 | 95,420 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,285 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,778 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,114 |
| Australian Capitals | 0 | - | 4.92 | 62,642 |
| Australia A-Z | 0 | - | 4.54 | 49,859 |
| Australia Map Quiz | 0 | - | 4.94 | 343,080 |
| History of Mexico | 0 | - | 4.58 | 15,252 |
| United States Map Quiz | 0 | - | 4.98 | 4,146,927 |
| U.S. States by Governor | 0 | - | 4.43 | 18,007 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,610 |
| Mayors of New York City | 0 | - | 3.96 | 12,171 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,591 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,098 |
| Win the U.S. Presidential Election | 0 | - | 4.80 | 621,606 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,397 |
