| Prime Ministers of the UK | 0 | - | 4.95 | 437,677 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,757 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,845 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,413 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,839 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 94,829 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,189 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,687,149 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,341 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,656 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,464 |
| Country by Photo of its Leader | 0 | - | 4.72 | 123,830 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,141 |
| Arms Exports - Russia | 0 | - | 4.48 | 25,118 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,295 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,718 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,126 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,873 |
| Countries of the Popes | 0 | - | 4.79 | 127,846 |
| National Founders | 0 | - | 4.40 | 83,784 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 425,774 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,220 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,610 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,049 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 381,031 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,748 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,909 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,865 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,988 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,961 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,643 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,135 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 191,281 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,134 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,000 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,214 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,854 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 76,097 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,252 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,683 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,574 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,407 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,586 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,434 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,408 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,997 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,730 |
| Political Movements by Country | 0 | - | 4.46 | 72,455 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,584 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,406 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,995 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,272 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,915 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,062 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,792 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,751 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,479 |
| Every European Country Shape | 0 | - | 4.96 | 201,253 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,435 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,382 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,738 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,032 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,137 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,238 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,900 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,686 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,073 |
| UK Immigration by Country | 0 | - | 4.94 | 140,634 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,382 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,879 |
| Name the English Monarchs | 0 | - | 4.91 | 501,336 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,976 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 129,313 |
| Hindu Countries | 0 | - | 4.86 | 49,988 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,399 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,500 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,681 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,854 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,290 |
| Russia by Picture | 0 | - | 4.40 | 20,363 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,458 |
| The Trojan War | 0 | - | 4.83 | 39,639 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,947 |
| Name that Greek Letter | 0 | - | 4.93 | 323,043 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,505 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,401 |
| Roman Emperors | 0 | - | 4.95 | 119,631 |
| Monty Python Quotes | 0 | - | 4.88 | 42,434 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,138 |
| Pope Facts | 0 | - | 4.39 | 31,196 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,820 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,327 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,225 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,509 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,221 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,564 |
| Presidential Middle Names | 0 | - | 4.41 | 60,090 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,168 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,419 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,932 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,346 |
| The American Revolution | 0 | - | 4.52 | 54,209 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,594 |
| Random European Flag to Country | 0 | - | 4.89 | 181,895 |
| History of Russia Quiz | 0 | - | 4.49 | 31,878 |
| Flags of Countries That Border Russia | 0 | - | 4.70 | 70,490 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,663 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,895 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,841 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,451 |
| Ancient Greek Words | 0 | - | 4.93 | 111,315 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,471 |
| History of Italy | 0 | - | 4.55 | 31,933 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,732 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,608 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,156 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,101 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,784 |
| Animals in British History | 0 | - | 4.44 | 25,972 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 857,262 |
| Scotland A-Z | 0 | - | 4.73 | 41,216 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,583 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,914 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,034 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,820 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,580 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,845 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,278 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,805 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,613 |
| Europe Map Quiz | 0 | - | 5.00 | 4,754,616 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,912 |
| Random European Countries on a Map | 0 | - | 4.97 | 283,018 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 317,458 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,012 |
| Russia A-Z | 0 | - | 4.46 | 27,218 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,501 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,520 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,531 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,020 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,189 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 387,442 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,594 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 37,660 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,211 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,707 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,608 |
| The Vietnam War | 0 | - | 4.44 | 35,476 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,150 |
| Communist Countries in History | 0 | - | 4.63 | 494,793 |
| History of India | 0 | - | 4.61 | 21,393 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,384 |
| Africa Map Quiz | 0 | - | 5.00 | 2,114,327 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,784 |
| History of South Africa | 0 | - | 4.60 | 17,658 |
| Oceania Map Quiz | 0 | - | 4.98 | 640,352 |
| Australian Capitals | 0 | - | 4.92 | 62,693 |
| History of Mexico | 0 | - | 4.58 | 15,290 |
| United States Map Quiz | 0 | - | 4.98 | 4,153,404 |
| American Political Words | 0 | - | 4.39 | 23,395 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,135 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,502 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.20 | 10,853 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,032 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,239 |
| First Ladies of the United States | 0 | - | 4.28 | 85,530 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,924 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,196 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,909 |
| U.S. President Scramble | 0 | - | 4.40 | 116,619 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,154 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,928 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,141 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,838 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,791 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,982 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,528 |
| Official European Union Languages | 0 | - | 4.97 | 238,079 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,585 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,421 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,285 |
| Most Forested European Countries | 0 | - | 4.80 | 75,224 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,606 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,366 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,901 |
| History of Austria | 0 | - | 4.70 | 17,831 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,108 |
| Geography of the French Empire | 0 | - | 4.45 | 27,019 |
| The French Revolution | 0 | - | 4.46 | 23,897 |
| History of France | 0 | - | 4.59 | 56,808 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,460 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,215 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 144,239 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,931 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,874 |
| Mythology A-Z | 0 | - | 4.31 | 37,160 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,377 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,011 |
| Byzantine History | 0 | - | 4.91 | 28,750 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.26 | 102,476 |
