| Prime Ministers of the UK | 0 | - | 4.95 | 443,344 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,612 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,250 |
| Canadian Prime Ministers | 0 | - | 4.64 | 58,030 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,732,370 |
| Country by Photo of its Leader | 0 | - | 4.70 | 124,770 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 127,880 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,414 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,953 |
| U.S. Bill of Rights | 0 | - | 4.53 | 33,918 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,699 |
| National Founders | 0 | - | 4.40 | 84,003 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,173 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,880 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,960 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,146 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,970 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 194,083 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,982 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,831 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,898 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.46 | 26,972 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,526 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,638 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,771 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 241,015 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,180 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 201,035 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,611 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 86,184 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 66,064 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 72,060 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,764 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,096 |
| Name the Popes Quiz | 0 | - | 4.47 | 139,115 |
| Countries of the Popes | 0 | - | 4.78 | 128,930 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 98,194 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,835 |
| The Vietnam War | 0 | - | 4.44 | 35,696 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,741 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,248 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,526 |
| Political Movements by Country | 0 | - | 4.46 | 72,844 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,207 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 192,063 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,837 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,460 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,442 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,317 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,216 |
| Name that Greek Letter | 0 | - | 4.93 | 325,373 |
| Countries Italy Declared War On | 0 | - | 4.74 | 48,849 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,838 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,549 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 87,056 |
| Name the English Monarchs | 0 | - | 4.91 | 507,550 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 77,170 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 62,124 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,511 |
| Rivers of the United States | 0 | - | 4.93 | 66,818 |
| Arms Exports - United States | 0 | - | 4.77 | 62,816 |
| American Political Words | 0 | - | 4.39 | 23,488 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,690 |
| U.S. Presidents by Event | 0 | - | 4.58 | 35,493 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,788 |
| Presidential Middle Names | 0 | - | 4.42 | 60,820 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,757 |
| Assassinated U.S. Presidents | 0 | - | 4.62 | 94,948 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,665 |
| Countries Closest to Alaska | 0 | - | 4.93 | 125,351 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,723 |
| The American Civil War | 0 | - | 4.62 | 52,671 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 511,142 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 66,771 |
| U.S. States with the Most Billionaires | 0 | - | 4.51 | 50,628 |
| Top U.S. States in Crude Oil Production | 0 | - | 4.51 | 41,153 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 50,311 |
| Least Visited U.S. States by JetPunkers | 0 | - | 4.44 | 71,038 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,701 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,232 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 72,155 |
| The Trojan War | 0 | - | 4.83 | 40,104 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,314 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 128,039 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,715 |
| Roman Emperors | 0 | - | 4.95 | 121,491 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 54,037 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 81,112 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,299 |
| Prime Ministers of Israel | 0 | - | 3.97 | 18,104 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,603 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,697 |
| Hindu Countries | 0 | - | 4.86 | 50,697 |
| South America Flags Map Quiz | 0 | - | 4.95 | 89,221 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,858 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 306,460 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,262 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,677 |
| The American Revolution | 0 | - | 4.52 | 54,395 |
| Hawaiian Islands | 0 | - | 4.83 | 43,036 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,585 |
| American History Quotes #1 | 0 | - | 4.37 | 96,258 |
| American History Quotes #2 | 0 | - | 4.38 | 41,543 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,375 |
| U.S. State Flags | 0 | - | 4.88 | 173,600 |
| U.S. States that Border Canada | 0 | - | 4.91 | 187,142 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,558 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 533,205 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 162,583 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,927 |
| History of Russia Quiz | 0 | - | 4.47 | 32,031 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,643 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,622 |
| Ancient Greek Words | 0 | - | 4.93 | 112,719 |
| History of Italy | 0 | - | 4.55 | 32,195 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,594 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,568 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,859 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,480 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 108,965 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,152 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,228 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 29,105 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,843 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,757 |
| Puerto Rico Trivia | 0 | - | 4.52 | 12,089 |
| American Monopoly Board - Map Quiz | 0 | - | 4.52 | 21,275 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,228 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,579 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.22 | 10,913 |
| U.S. Vice Presidents | 0 | - | 4.39 | 137,210 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,384 |
| U.S. Presidential Running Mates | 0 | - | 4.41 | 28,806 |
| First Ladies of the United States | 0 | - | 4.28 | 86,035 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,339 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,546 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,392 |
| Add a Letter - Make a U.S. President | 0 | - | 4.58 | 24,125 |
| Win the 1828 U.S. Presidential Election | 0 | - | 4.32 | 59,685 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,559,085 |
| Top 10 Most Jewish U.S. States | 0 | - | 4.31 | 43,200 |
| U.S. States by Hottest Recorded Temperature | 0 | - | 4.36 | 57,576 |
| States in a Tank of the U.S. Map | 0 | - | 4.47 | 31,508 |
| U.S. States Richer than Their Neighbors | 0 | - | 4.43 | 27,465 |
| Most Visited U.S. States by JetPunkers | 0 | - | 4.30 | 44,714 |
| Colleges by U.S. State - Multiple Choice | 0 | - | 4.57 | 23,158 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,963 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,230 |
| Europe Map Quiz | 0 | - | 5.00 | 4,794,605 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,267 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 217,551 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,723 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,770 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,730 |
| Countries Invaded by the USSR | 0 | - | 4.30 | 94,526 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 81,248 |
| History of Austria | 0 | - | 4.70 | 17,992 |
| Geography of the French Empire | 0 | - | 4.45 | 27,240 |
| The French Revolution | 0 | - | 4.47 | 24,173 |
| History of France | 0 | - | 4.61 | 57,753 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,580 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,673 |
| Mythology A-Z | 0 | - | 4.31 | 37,462 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 21,071 |
| Figures from Greek Mythology | 0 | - | 4.92 | 193,768 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.27 | 104,196 |
| The Vikings! | 0 | - | 4.46 | 28,427 |
| The Portuguese Empire | 0 | - | 4.58 | 12,120 |
| Arthurian Legend | 0 | - | 4.33 | 25,195 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,860 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,496 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,404 |
| Geography of the British Empire | 0 | - | 4.48 | 39,888 |
| Pope Facts | 0 | - | 4.39 | 31,435 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 281,107 |
| History of Iran | 0 | - | 4.66 | 16,443 |
| The Iraq War | 0 | - | 4.47 | 15,721 |
| History of China | 0 | - | 4.35 | 57,701 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,706 |
| History of India | 0 | - | 4.62 | 21,531 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,729 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 101,695 |
| History of South Africa | 0 | - | 4.60 | 17,782 |
| Communist Countries in History | 0 | - | 4.63 | 498,884 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,624 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,633 |
| Australian Capitals | 0 | - | 4.92 | 62,865 |
| Australia A-Z | 0 | - | 4.54 | 50,169 |
| Australia Map Quiz | 0 | - | 4.95 | 346,574 |
| History of Mexico | 0 | - | 4.52 | 15,376 |
| United States Map Quiz | 0 | - | 4.98 | 4,174,073 |
| U.S. States by Governor | 0 | - | 4.43 | 18,125 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,790 |
| Mayors of New York City | 0 | - | 3.96 | 12,312 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,810 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,789 |
| Win the U.S. Presidential Election | 0 | - | 4.79 | 637,617 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,625 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,299 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,790 |
