| Prime Ministers of the UK | 0 | - | 4.96 | 436,060 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,763 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,225 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,075 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,644 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,395 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,668,216 |
| Egypt Country Quiz | 0 | - | 4.82 | 77,176 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,605 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,513 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,611 |
| Countries Closest to Egypt | 0 | - | 4.83 | 100,695 |
| National Founders | 0 | - | 4.40 | 83,706 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 424,583 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 380,113 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,762 |
| Countries that Beat Egypt | 0 | - | 4.88 | 56,715 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,018 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,653 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 190,436 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,853 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,335 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,723 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,809 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,376 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,262 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,691 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,695 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,190 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,574 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,813 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,619 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,800 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,095 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,671 |
| Name the English Monarchs | 0 | - | 4.92 | 499,420 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,444 |
| Countries of the Popes | 0 | - | 4.79 | 127,489 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,570 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 117,882 |
| Political Movements by Country | 0 | - | 4.46 | 72,351 |
| Hindu Countries | 0 | - | 4.86 | 49,749 |
| Every African Country Shape | 0 | - | 4.90 | 86,459 |
| Biggest Trading Partners - South Africa | 0 | - | 4.74 | 40,168 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,134 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,925 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,406 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,687 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,604 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,257 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,576 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,319 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,306 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,359 |
| The Trojan War | 0 | - | 4.83 | 39,520 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 643,733 |
| Name that Greek Letter | 0 | - | 4.93 | 322,237 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,977 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,205 |
| Roman Emperors | 0 | - | 4.95 | 118,989 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,561 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,730 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,556 |
| Africa Flags Map Quiz | 0 | - | 4.95 | 36,096 |
| Random African Flag to Country | 0 | - | 4.88 | 74,413 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,078 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,170 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,789 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,224 |
| Presidential Middle Names | 0 | - | 4.41 | 59,857 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,907 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,050 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,819 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,239 |
| The American Revolution | 0 | - | 4.52 | 54,122 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,743 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,797 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,981 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,716 |
| Ancient Greek Words | 0 | - | 4.93 | 110,985 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,876 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,354 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,865 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,592 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 79,776 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,224 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,854 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,804 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,124 |
| Random African Countries on a Map | 0 | - | 4.99 | 294,373 |
| Africa Map with Random Merged Countries | 0 | - | 4.95 | 72,878 |
| U.S. Vice Presidents | 0 | - | 4.39 | 135,448 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,188 |
| First Ladies of the United States | 0 | - | 4.28 | 85,336 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,145 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,579 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 303,929 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,053 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,597 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,866 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 219,243 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,047 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,721 |
| Europe Map Quiz | 0 | - | 5.00 | 4,741,241 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,254 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,820 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,164 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,693 |
| History of Russia Quiz | 0 | - | 4.49 | 31,828 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,100 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,050 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,957 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,446 |
| History of Italy | 0 | - | 4.55 | 31,874 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,002 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,682 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,537 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,060 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,672 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,437 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,613 |
| Pope Facts | 0 | - | 4.39 | 31,113 |
| The Vietnam War | 0 | - | 4.43 | 35,365 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,978 |
| Communist Countries in History | 0 | - | 4.63 | 493,481 |
| History of India | 0 | - | 4.61 | 21,326 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,263 |
| Africa Map Quiz | 0 | - | 5.00 | 2,108,709 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,067 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 127,038 |
| History of South Africa | 0 | - | 4.60 | 17,629 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,539 |
| Australian Capitals | 0 | - | 4.92 | 62,637 |
| History of Mexico | 0 | - | 4.58 | 15,249 |
| United States Map Quiz | 0 | - | 4.98 | 4,146,371 |
| American Political Words | 0 | - | 4.39 | 23,369 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,098 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,478 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.20 | 10,826 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,388 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,112 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,849 |
| People in Pictures with Ronald Reagan | 0 | - | 4.35 | 40,513 |
| U.S. President Scramble | 0 | - | 4.40 | 116,384 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,069 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,754 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,780 |
| Official European Union Languages | 0 | - | 4.97 | 237,420 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,182 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,089 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 210,563 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,713 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,395 |
| History of Austria | 0 | - | 4.70 | 17,784 |
| Geography of the French Empire | 0 | - | 4.45 | 26,977 |
| The French Revolution | 0 | - | 4.46 | 23,843 |
| History of France | 0 | - | 4.59 | 56,463 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,413 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,844 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,820 |
| Mythology A-Z | 0 | - | 4.31 | 37,075 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,578 |
| Byzantine History | 0 | - | 4.91 | 28,671 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.26 | 101,881 |
| History of The Netherlands | 0 | - | 4.46 | 17,350 |
| The Vikings! | 0 | - | 4.46 | 28,272 |
| The Portuguese Empire | 0 | - | 4.58 | 12,015 |
| Arthurian Legend | 0 | - | 4.33 | 25,066 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,248 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,012 |
| Geography of the British Empire | 0 | - | 4.48 | 39,553 |
| Medieval English History | 0 | - | 4.53 | 43,365 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,568 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,038 |
| Asia Map Quiz | 0 | - | 4.99 | 909,659 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,919 |
| Top 10 Richest Countries in Asia | 0 | - | 4.73 | 105,111 |
| History of Iran | 0 | - | 4.66 | 16,293 |
| The Iraq War | 0 | - | 4.47 | 15,583 |
| Ottoman Empire Quiz | 0 | - | 4.42 | 17,060 |
| Chinese Inventions | 0 | - | 4.30 | 33,744 |
| History of China | 0 | - | 4.37 | 56,833 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,395 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,355 |
| Countries by Founding Story | 0 | - | 4.95 | 76,751 |
| Independence from Whom | 0 | - | 4.99 | 210,237 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,123 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,150 |
| Africa Capitals Quiz | 0 | - | 4.99 | 732,556 |
| Countries of Africa | 0 | - | 5.00 | 2,516,730 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,583 |
| Flags of Africa Quiz | 0 | - | 5.00 | 465,716 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,134 |
| African Capitals by Map | 0 | - | 4.99 | 132,611 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,028 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,805 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,560 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,733 |
| African East Coast | 0 | - | 4.96 | 95,379 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,539 |
