| Prime Ministers of the UK | 0 | - | 4.95 | 439,998 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,395 |
| Prime Ministers of Australia | 0 | - | 4.50 | 32,000 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,635 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,707,604 |
| Country by Photo of its Leader | 0 | - | 4.72 | 124,255 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,525 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,350 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,874 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,554 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,184 |
| National Founders | 0 | - | 4.40 | 83,879 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,209 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,106 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,830 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 427,004 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,051 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,096 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 382,281 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 192,559 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,459 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 221,278 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 134,589 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,863 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,188 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,274 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,704 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,071 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,758 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,801 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,731 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,934 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,785 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,724 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,313 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,071 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,301 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,125 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,968 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,418 |
| Countries of the Popes | 0 | - | 4.79 | 128,326 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,453 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,434 |
| The Vietnam War | 0 | - | 4.44 | 35,573 |
| Political Movements by Country | 0 | - | 4.46 | 72,618 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,418 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,032 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,055 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,573 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,991 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,941 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,354 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,793 |
| Name that Greek Letter | 0 | - | 4.93 | 324,147 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,408 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,288 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 42,049 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,495 |
| Name the English Monarchs | 0 | - | 4.91 | 503,857 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,193 |
| Hindu Countries | 0 | - | 4.86 | 50,296 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,701 |
| Rivers of the United States | 0 | - | 4.93 | 66,319 |
| Arms Exports - United States | 0 | - | 4.77 | 62,515 |
| American Political Words | 0 | - | 4.39 | 23,438 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,914 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,696 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,977 |
| Presidential Middle Names | 0 | - | 4.41 | 60,398 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,446 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,663 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,483 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,561 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,242 |
| The American Civil War | 0 | - | 4.62 | 52,497 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 507,798 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 66,589 |
| U.S. States with the Most Billionaires | 0 | - | 4.51 | 50,455 |
| Top U.S. States in Crude Oil Production | 0 | - | 4.51 | 41,102 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,658 |
| Least Visited U.S. States by JetPunkers | 0 | - | 4.44 | 70,753 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,552 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,022 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,662 |
| The Trojan War | 0 | - | 4.83 | 39,795 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,223 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,481 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,643 |
| Roman Emperors | 0 | - | 4.95 | 120,372 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,841 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,529 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,893 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,980 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,283 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,541 |
| South America Flags Map Quiz | 0 | - | 4.95 | 88,270 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,337 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 305,340 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,047 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,208 |
| The American Revolution | 0 | - | 4.52 | 54,292 |
| Hawaiian Islands | 0 | - | 4.83 | 42,773 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,375 |
| American History Quotes #1 | 0 | - | 4.37 | 96,099 |
| American History Quotes #2 | 0 | - | 4.38 | 41,440 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,273 |
| U.S. State Flags | 0 | - | 4.88 | 171,270 |
| U.S. States that Border Canada | 0 | - | 4.91 | 185,516 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,223 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,523 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,748 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,198 |
| History of Russia Quiz | 0 | - | 4.47 | 31,948 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,581 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,812 |
| Ancient Greek Words | 0 | - | 4.93 | 111,893 |
| History of Italy | 0 | - | 4.55 | 32,052 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,494 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,925 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,718 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,295 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,411 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,952 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,098 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,893 |
| History of India | 0 | - | 4.62 | 21,452 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,574 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 101,018 |
| History of South Africa | 0 | - | 4.60 | 17,715 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,664 |
| Puerto Rico Trivia | 0 | - | 4.51 | 12,017 |
| American Monopoly Board - Map Quiz | 0 | - | 4.52 | 21,224 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,179 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,540 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.22 | 10,874 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,458 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,279 |
| First Ladies of the United States | 0 | - | 4.28 | 85,730 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,978 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,243 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,247 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,236 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,997 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,544,200 |
| Top 10 Most Jewish U.S. States | 0 | - | 4.31 | 43,020 |
| U.S. States by Hottest Recorded Temperature | 0 | - | 4.36 | 57,449 |
| States in a Tank of the U.S. Map | 0 | - | 4.47 | 31,328 |
| U.S. States Richer than Their Neighbors | 0 | - | 4.43 | 27,389 |
| Most Visited U.S. States by JetPunkers | 0 | - | 4.30 | 44,578 |
| Colleges by U.S. State - Multiple Choice | 0 | - | 4.57 | 23,072 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,855 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,906 |
| Europe Map Quiz | 0 | - | 5.00 | 4,770,438 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,048 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,511 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,695 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,838 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,792 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 94,149 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 80,849 |
| History of Austria | 0 | - | 4.70 | 17,901 |
| Geography of the French Empire | 0 | - | 4.45 | 27,154 |
| The French Revolution | 0 | - | 4.47 | 24,058 |
| History of France | 0 | - | 4.59 | 57,266 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,375 |
| Mythology A-Z | 0 | - | 4.31 | 37,280 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,838 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,679 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.27 | 103,216 |
| The Vikings! | 0 | - | 4.46 | 28,368 |
| The Portuguese Empire | 0 | - | 4.58 | 12,082 |
| Arthurian Legend | 0 | - | 4.33 | 25,132 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,715 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,402 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,655 |
| Geography of the British Empire | 0 | - | 4.48 | 39,733 |
| Pope Facts | 0 | - | 4.39 | 31,289 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,668 |
| History of Iran | 0 | - | 4.66 | 16,373 |
| The Iraq War | 0 | - | 4.47 | 15,672 |
| History of China | 0 | - | 4.37 | 57,309 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,363 |
| Communist Countries in History | 0 | - | 4.63 | 496,466 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,517 |
| Countries of Africa | 0 | - | 5.00 | 2,544,411 |
| Africa Map Quiz | 0 | - | 5.00 | 2,121,507 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,086 |
| African East Coast | 0 | - | 4.96 | 96,272 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,128 |
| Oceania Map Quiz | 0 | - | 4.98 | 648,130 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,887 |
| Australian Capitals | 0 | - | 4.92 | 62,751 |
| Australia A-Z | 0 | - | 4.54 | 50,025 |
| Australia Map Quiz | 0 | - | 4.95 | 345,090 |
| History of Mexico | 0 | - | 4.58 | 15,334 |
| United States Map Quiz | 0 | - | 4.98 | 4,163,352 |
| U.S. States by Governor | 0 | - | 4.43 | 18,078 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,716 |
| Mayors of New York City | 0 | - | 3.96 | 12,237 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,708 |
