| Prime Ministers of the UK | 0 | - | 4.96 | 435,050 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,003 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,712 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,117 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,659,159 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,340 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,438 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,265 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,386 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,493 |
| National Founders | 0 | - | 4.40 | 83,673 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,767 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,893 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,673 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 424,062 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,010 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,768 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 190,070 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,746 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 218,737 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,673 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,664 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,663 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,585 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,010 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,921 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,426 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,450 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,560 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,408 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,061 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,515 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,551 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,200 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,107 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,579 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,454 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,259 |
| Countries of the Popes | 0 | - | 4.79 | 127,307 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,365 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,318 |
| The Vietnam War | 0 | - | 4.43 | 35,322 |
| Political Movements by Country | 0 | - | 4.46 | 72,292 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,220 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,766 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,393 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,188 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,244 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,170 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,071 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,590 |
| Name that Greek Letter | 0 | - | 4.94 | 321,844 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,013 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,442 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,183 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,592 |
| Name the English Monarchs | 0 | - | 4.92 | 498,454 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,423 |
| Hindu Countries | 0 | - | 4.86 | 49,640 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,003 |
| Rivers of the United States | 0 | - | 4.93 | 65,590 |
| Arms Exports - United States | 0 | - | 4.70 | 54,411 |
| American Political Words | 0 | - | 4.39 | 23,347 |
| U.S. Vice Presidents | 0 | - | 4.41 | 135,109 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,029 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,618 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,069 |
| Presidential Middle Names | 0 | - | 4.41 | 59,755 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,801 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 93,894 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,195 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,404 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,509 |
| The American Civil War | 0 | - | 4.62 | 52,183 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 502,381 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.51 | 66,221 |
| U.S. States with the Most Billionaires | 0 | - | 4.51 | 50,118 |
| Top U.S. States in Crude Oil Production | 0 | - | 4.51 | 40,984 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,662 |
| Least Visited U.S. States by JetPunkers | 0 | - | 4.44 | 70,311 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,316 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,745 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,846 |
| The Trojan War | 0 | - | 4.83 | 39,467 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,706 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,483 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,115 |
| Roman Emperors | 0 | - | 4.95 | 118,615 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,528 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,592 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,829 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,717 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 54,007 |
| South America Flags Map Quiz | 0 | - | 4.95 | 86,758 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,488 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 303,508 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,765 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,492 |
| The American Revolution | 0 | - | 4.52 | 54,071 |
| Hawaiian Islands | 0 | - | 4.83 | 42,451 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,107 |
| American History Quotes #1 | 0 | - | 4.37 | 95,715 |
| American History Quotes #2 | 0 | - | 4.38 | 41,237 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,091 |
| U.S. State Flags | 0 | - | 4.89 | 167,631 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,708 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,716 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,632 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,559 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,124 |
| History of Russia Quiz | 0 | - | 4.49 | 31,803 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,648 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,857 |
| Ancient Greek Words | 0 | - | 4.92 | 110,794 |
| History of Italy | 0 | - | 4.55 | 31,842 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,328 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,916 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,496 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,003 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,743 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,572 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,007 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,564 |
| History of India | 0 | - | 4.61 | 21,298 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,687 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,469 |
| History of South Africa | 0 | - | 4.60 | 17,613 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,561 |
| Puerto Rico Trivia | 0 | - | 4.51 | 11,944 |
| American Monopoly Board - Map Quiz | 0 | - | 4.52 | 21,142 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,080 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,469 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.20 | 10,814 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,172 |
| First Ladies of the United States | 0 | - | 4.28 | 85,275 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,823 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,121 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,416 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,017 |
| Add a Letter - Make a U.S. President | 0 | - | 4.61 | 23,848 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,520,664 |
| Top 10 Most Jewish U.S. States | 0 | - | 4.31 | 42,770 |
| U.S. States by Hottest Recorded Temperature | 0 | - | 4.36 | 57,203 |
| States in a Tank of the U.S. Map | 0 | - | 4.47 | 31,062 |
| U.S. States Richer than Their Neighbors | 0 | - | 4.43 | 27,226 |
| Most Visited U.S. States by JetPunkers | 0 | - | 4.35 | 44,365 |
| Colleges by U.S. State - Multiple Choice | 0 | - | 4.57 | 22,930 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,698 |
| Europe Map Quiz | 0 | - | 5.00 | 4,734,380 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,774 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,833 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,864 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,481 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,934 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,595 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,293 |
| History of Austria | 0 | - | 4.70 | 17,765 |
| Geography of the French Empire | 0 | - | 4.45 | 26,949 |
| The French Revolution | 0 | - | 4.46 | 23,803 |
| History of France | 0 | - | 4.59 | 56,194 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,393 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 26,972 |
| Mythology A-Z | 0 | - | 4.31 | 37,024 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,170 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.26 | 101,618 |
| The Vikings! | 0 | - | 4.46 | 28,254 |
| The Portuguese Empire | 0 | - | 4.54 | 12,000 |
| Arthurian Legend | 0 | - | 4.33 | 25,054 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,408 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,214 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,892 |
| Geography of the British Empire | 0 | - | 4.48 | 39,508 |
| Pope Facts | 0 | - | 4.39 | 31,065 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,263 |
| History of Iran | 0 | - | 4.65 | 16,281 |
| The Iraq War | 0 | - | 4.47 | 15,563 |
| History of China | 0 | - | 4.37 | 56,736 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,895 |
| Communist Countries in History | 0 | - | 4.63 | 492,841 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.68 | 55,202 |
| Countries of Africa | 0 | - | 5.00 | 2,510,703 |
| Africa Map Quiz | 0 | - | 5.00 | 2,105,670 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,897 |
| African East Coast | 0 | - | 4.96 | 95,142 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,019 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,007 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,905 |
| Australian Capitals | 0 | - | 4.92 | 62,599 |
| Australia A-Z | 0 | - | 4.54 | 49,803 |
| Australia Map Quiz | 0 | - | 4.94 | 342,680 |
| History of Mexico | 0 | - | 4.58 | 15,238 |
| United States Map Quiz | 0 | - | 4.98 | 4,143,437 |
| U.S. States by Governor | 0 | - | 4.43 | 17,989 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,587 |
| Mayors of New York City | 0 | - | 3.96 | 12,150 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,560 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 54,998 |
| Win the U.S. Presidential Election | 0 | - | 4.80 | 619,346 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,370 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,484 |
