| Prime Ministers of the UK | 0 | - | 4.95 | 442,057 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,180 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,888 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,602 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,525 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,923 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,665 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,723,644 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,098 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,268 |
| Country by Photo of its Leader | 0 | - | 4.70 | 124,591 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 166,387 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,974 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,966 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,918 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,863 |
| Countries of the Popes | 0 | - | 4.79 | 128,685 |
| National Founders | 0 | - | 4.40 | 83,961 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,332 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 162,227 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,631 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,626 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,126 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,468 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,282 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,412 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,487 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,302 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,745 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,764 |
| Name a Valid U.S. President #1 | 0 | - | 4.90 | 193,675 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,833 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,284 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,357 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,282 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,184 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,678 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,773 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,512 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,502 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 81,120 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,634 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,563 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,939 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 29,010 |
| Political Movements by Country | 0 | - | 4.46 | 72,751 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,134 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,140 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,080 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,861 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,708 |
| Every European Country Shape | 0 | - | 4.96 | 202,846 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,795 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,733 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,997 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,525 |
| Arms Exports - Russia | 0 | - | 4.49 | 25,189 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 102,661 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,618 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,613 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,766 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,340 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,832 |
| UK Immigration by Country | 0 | - | 4.94 | 141,630 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,897 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,788 |
| Name the English Monarchs | 0 | - | 4.91 | 506,082 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 97,915 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,081 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,452 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,054 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,951 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,274 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,962 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,591 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,985 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,108 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,257 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 94,403 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,613 |
| The Trojan War | 0 | - | 4.83 | 39,966 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,541 |
| Name that Greek Letter | 0 | - | 4.93 | 324,882 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,866 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,559 |
| Roman Emperors | 0 | - | 4.95 | 121,096 |
| Monty Python Quotes | 0 | - | 4.89 | 42,601 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 238,213 |
| Pope Facts | 0 | - | 4.39 | 31,376 |
| Hindu Countries | 0 | - | 4.87 | 50,556 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,525 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,511 |
| U.S. Presidents by Event | 0 | - | 4.58 | 35,271 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,585 |
| Presidential Middle Names | 0 | - | 4.41 | 60,697 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,666 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,877 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,183 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,620 |
| The American Revolution | 0 | - | 4.52 | 54,349 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,285 |
| Random European Flag to Country | 0 | - | 4.90 | 184,094 |
| History of Russia Quiz | 0 | - | 4.47 | 31,999 |
| Russia by Picture | 0 | - | 4.41 | 20,474 |
| Flags of Countries That Border France | 0 | - | 4.89 | 123,747 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,121 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 97,816 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,520 |
| Ancient Greek Words | 0 | - | 4.93 | 112,392 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,403 |
| History of Italy | 0 | - | 4.55 | 32,138 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,281 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,810 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,413 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,737 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,079 |
| Animals in British History | 0 | - | 4.43 | 26,085 |
| 2026–2027 English Premier League Teams | 0 | - | 4.84 | 870,540 |
| Scotland A-Z | 0 | - | 4.73 | 41,445 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,167 |
| Prime Ministers of Israel | 0 | - | 3.97 | 18,060 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,484 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,536 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,737 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 306,133 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,550 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,350 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,503 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,123 |
| Europe Map Quiz | 0 | - | 5.00 | 4,785,672 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,173 |
| Random European Countries on a Map | 0 | - | 4.97 | 284,966 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 320,362 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,447 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,237 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,829 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 126,659 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,574 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,268 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 389,926 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,799 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 38,178 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,454 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,851 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,560 |
| The Vietnam War | 0 | - | 4.44 | 35,642 |
| Countries of the Japanese Empire | 0 | - | 4.96 | 104,542 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,260 |
| Communist Countries in History | 0 | - | 4.63 | 497,967 |
| History of South Africa | 0 | - | 4.60 | 17,757 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,841 |
| Australian Capitals | 0 | - | 4.92 | 62,825 |
| History of Mexico | 0 | - | 4.52 | 15,360 |
| United States Map Quiz | 0 | - | 4.98 | 4,170,420 |
| American Political Words | 0 | - | 4.39 | 23,467 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,212 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,561 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.22 | 10,902 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,933 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,358 |
| U.S. Presidential Running Mates | 0 | - | 4.41 | 28,760 |
| First Ladies of the United States | 0 | - | 4.28 | 85,931 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.42 | 24,059 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,306 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,451 |
| U.S. President Scramble | 0 | - | 4.40 | 117,434 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,355 |
| Add a Letter - Make a U.S. President | 0 | - | 4.58 | 24,089 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,333 |
| Win the 1828 U.S. Presidential Election | 0 | - | 4.31 | 58,161 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 48,074 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,936 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,678 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,007 |
| Official European Union Languages | 0 | - | 4.97 | 239,679 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,578 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,650 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,474 |
| Most Forested European Countries | 0 | - | 4.80 | 75,658 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,702 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,601 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 217,979 |
| History of Austria | 0 | - | 4.70 | 17,968 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,349 |
| Geography of the French Empire | 0 | - | 4.45 | 27,209 |
| The French Revolution | 0 | - | 4.47 | 24,136 |
| History of France | 0 | - | 4.61 | 57,568 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,556 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,575 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 145,570 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,213 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,033 |
| Mythology A-Z | 0 | - | 4.31 | 37,385 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,950 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,699 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,427 |
| Byzantine History | 0 | - | 4.91 | 29,013 |
| Byzantine Emperors | 0 | - | 4.93 | 14,573 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.27 | 103,690 |
| History of The Netherlands | 0 | - | 4.46 | 17,545 |
