| Prime Ministers of the UK | 0 | - | 4.95 | 442,062 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,185 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,889 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,974 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,434 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,966 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,919 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,605 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,526 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,668 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,723,810 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,105 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,270 |
| Country by Photo of its Leader | 0 | - | 4.70 | 124,593 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,551 |
| Name that Greek Letter | 0 | - | 4.93 | 324,885 |
| Monty Python Quotes | 0 | - | 4.89 | 42,601 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 29,013 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,924 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,426 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,865 |
| Countries of the Popes | 0 | - | 4.79 | 128,686 |
| National Founders | 0 | - | 4.40 | 83,962 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,341 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 162,229 |
| Ancient Greek Words | 0 | - | 4.93 | 112,396 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,282 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,640 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,126 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,479 |
| Name a Valid U.S. President #1 | 0 | - | 4.90 | 193,683 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,835 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,284 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,286 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,360 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,503 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,413 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,240 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,487 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,311 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,799 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,746 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,769 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,081 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,284 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,191 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,679 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,774 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,512 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,527 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 81,120 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,636 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,563 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,768 |
| UK Immigration by Country | 0 | - | 4.94 | 141,637 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,899 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,947 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,269 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 97,917 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,094 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,454 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,057 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,279 |
| 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 | 29,141 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,591 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,861 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,714 |
| Every European Country Shape | 0 | - | 4.96 | 202,852 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,795 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,735 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,000 |
| Ireland Country Quiz | 0 | - | 4.69 | 135,187 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,618 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,616 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,024 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,361 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,305 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,833 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,791 |
| Name the English Monarchs | 0 | - | 4.91 | 506,103 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.32 | 62,554 |
| 2026–2027 Football League Teams | 0 | - | 4.94 | 406,041 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,955 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,966 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,524 |
| U.S. Presidents by Event | 0 | - | 4.58 | 35,273 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,592 |
| Presidential Middle Names | 0 | - | 4.41 | 60,699 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,671 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,881 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,621 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,990 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,112 |
| Random European Flag to Country | 0 | - | 4.90 | 184,097 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 166,387 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,631 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,616 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,380 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,668 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,124 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,084 |
| Germany A-Z | 0 | - | 4.56 | 62,846 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,955 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,525 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,902 |
| The Trojan War | 0 | - | 4.83 | 39,966 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,762 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.54 | 49,616 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,870 |
| Italy A-Z | 0 | - | 4.49 | 58,715 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,279 |
| Roman History Vocabulary | 0 | - | 4.41 | 57,712 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,561 |
| Roman Emperors | 0 | - | 4.95 | 121,102 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,099 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,203 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,038 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 64,709 |
| Middle Earth Geography | 0 | - | 4.56 | 39,945 |
| Lord of the Rings Trivia | 0 | - | 4.53 | 81,762 |
| Members of the Fellowship of the Ring | 0 | - | 4.74 | 45,956 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,217 |
| British History A-Z #1 | 0 | - | 4.45 | 47,208 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 61,052 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,758 |
| Top 4 in English Football, 1888–2026 | 0 | - | 4.92 | 143,203 |
| Scotland A-Z | 0 | - | 4.73 | 41,445 |
| Pope Facts | 0 | - | 4.39 | 31,377 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,171 |
| Prime Ministers of Israel | 0 | - | 3.97 | 18,061 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,487 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,539 |
| Hindu Countries | 0 | - | 4.87 | 50,557 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,525 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 306,136 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,185 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,550 |
| The American Revolution | 0 | - | 4.52 | 54,349 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,353 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,507 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,292 |
| Random European Countries on a Map | 0 | - | 4.97 | 284,971 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 320,367 |
| History of Russia Quiz | 0 | - | 4.47 | 31,999 |
| Flags of Countries That Border France | 0 | - | 4.89 | 123,748 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 97,818 |
| All Countries that Once Bordered Germany | 0 | - | 4.34 | 75,178 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,544 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,831 |
| History of Italy | 0 | - | 4.55 | 32,138 |
| Italy by Picture | 0 | - | 4.41 | 31,076 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,584 |
| 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 | 108,745 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,080 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,732 |
| Name a James Bond Movie A-Z | 0 | - | 4.60 | 10,489 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 38,178 |
| Animals in British History | 0 | - | 4.43 | 26,085 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,851 |
| 2026–2027 English Premier League Teams | 0 | - | 4.84 | 870,574 |
| Premier League Relegated Teams | 0 | - | 4.81 | 127,738 |
| The Vietnam War | 0 | - | 4.44 | 35,645 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,738 |
| History of South Africa | 0 | - | 4.60 | 17,757 |
| 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 | 10,903 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,936 |
| 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 | 85,934 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.42 | 24,060 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,307 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,453 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,356 |
| Add a Letter - Make a U.S. President | 0 | - | 4.58 | 24,089 |
| Win the 1828 U.S. Presidential Election | 0 | - | 4.31 | 58,231 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,937 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,124 |
| Europe Map Quiz | 0 | - | 5.00 | 4,785,825 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,475 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,173 |
| 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 | 38,603 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 217,981 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,459 |
| Arms Exports - Russia | 0 | - | 4.49 | 25,189 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 94,405 |
| History of Austria | 0 | - | 4.70 | 17,969 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,349 |
| Geography of the French Empire | 0 | - | 4.45 | 27,210 |
| The French Revolution | 0 | - | 4.47 | 24,138 |
| History of France | 0 | - | 4.61 | 57,570 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,556 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,577 |
