| Prime Ministers of the UK | 0 | - | 4.95 | 439,939 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,996 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,625 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,655 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,839 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,518 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,763 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,178 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,947 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,707,104 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,976 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,936 |
| Country by Photo of its Leader | 0 | - | 4.72 | 124,248 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,696 |
| Name that Greek Letter | 0 | - | 4.93 | 324,121 |
| Monty Python Quotes | 0 | - | 4.89 | 42,500 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,885 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,861 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,461 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 41,263 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,410 |
| Countries of the Popes | 0 | - | 4.79 | 128,313 |
| National Founders | 0 | - | 4.40 | 83,872 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 426,984 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,734 |
| Ancient Greek Words | 0 | - | 4.93 | 111,876 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,994 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,083 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,089 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 382,259 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 192,538 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,448 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,592 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,677 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,821 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,784 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,173 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,560 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,266 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,075 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,711 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,700 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,063 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,751 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,784 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,718 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,932 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,700 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,225 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,048 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,289 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,113 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,281 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 80,844 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,547 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,488 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,235 |
| UK Immigration by Country | 0 | - | 4.94 | 141,134 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,127 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,106 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,238 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,439 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,373 |
| Political Movements by Country | 0 | - | 4.46 | 72,613 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,407 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,030 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,104 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,554 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,830 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,043 |
| Every European Country Shape | 0 | - | 4.96 | 202,148 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,584 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,566 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,334 |
| Ireland Country Quiz | 0 | - | 4.69 | 134,665 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,404 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,771 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,186 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,215 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,347 |
| Name the English Monarchs | 0 | - | 4.91 | 503,788 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 62,239 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 402,601 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,189 |
| Hindu Countries | 0 | - | 4.86 | 50,288 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,695 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,910 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,693 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,973 |
| Presidential Middle Names | 0 | - | 4.41 | 60,393 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,441 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,659 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,477 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,344 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,470 |
| Random European Flag to Country | 0 | - | 4.89 | 182,912 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,619 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,547 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,051 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,950 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,349 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,019 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,953 |
| Germany A-Z | 0 | - | 4.56 | 62,690 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,124 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,175 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,832 |
| The Trojan War | 0 | - | 4.83 | 39,793 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,551 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,500 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,201 |
| Italy A-Z | 0 | - | 4.49 | 58,421 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,498 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,640 |
| Roman Emperors | 0 | - | 4.95 | 120,365 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,724 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,975 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,711 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 64,384 |
| Middle Earth Geography | 0 | - | 4.56 | 39,870 |
| Lord of the Rings Trivia | 0 | - | 4.53 | 81,563 |
| Members of the Fellowship of the Ring | 0 | - | 4.74 | 45,874 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,656 |
| British History A-Z #1 | 0 | - | 4.45 | 46,570 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,792 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,466 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 141,908 |
| Scotland A-Z | 0 | - | 4.73 | 41,333 |
| Pope Facts | 0 | - | 4.39 | 31,288 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,888 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,978 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,277 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,537 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,394 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 305,326 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,044 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,196 |
| The American Revolution | 0 | - | 4.52 | 54,290 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 221,261 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 134,573 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,472 |
| Random European Countries on a Map | 0 | - | 4.97 | 284,233 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 319,250 |
| History of Russia Quiz | 0 | - | 4.47 | 31,946 |
| Flags of Countries That Border France | 0 | - | 4.88 | 123,359 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 97,467 |
| All Countries that Once Bordered Germany | 0 | - | 4.34 | 75,012 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,756 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,682 |
| History of Italy | 0 | - | 4.55 | 32,048 |
| Italy by Picture | 0 | - | 4.41 | 30,983 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,880 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,716 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,292 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,404 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,947 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,397 |
| Name a James Bond Movie A-Z | 0 | - | 4.60 | 10,424 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 37,959 |
| Animals in British History | 0 | - | 4.43 | 26,038 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,775 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 861,672 |
| Premier League Relegated Teams | 0 | - | 4.81 | 126,858 |
| The Vietnam War | 0 | - | 4.44 | 35,572 |
| History of India | 0 | - | 4.62 | 21,450 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,557 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 101,007 |
| History of South Africa | 0 | - | 4.60 | 17,714 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,179 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,540 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.22 | 10,874 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,450 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,278 |
| First Ladies of the United States | 0 | - | 4.28 | 85,727 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,977 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,243 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,229 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,234 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,997 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,854 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,905 |
| Europe Map Quiz | 0 | - | 5.00 | 4,769,888 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,388 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,045 |
| Most Forested European Countries | 0 | - | 4.80 | 75,436 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,658 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,488 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 217,475 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,470 |
| Arms Exports - Russia | 0 | - | 4.49 | 25,150 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 94,142 |
| History of Austria | 0 | - | 4.70 | 17,900 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,224 |
| Geography of the French Empire | 0 | - | 4.45 | 27,152 |
| The French Revolution | 0 | - | 4.47 | 24,055 |
| History of France | 0 | - | 4.59 | 57,251 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,373 |
| German History A-Z | 0 | - | 4.49 | 24,654 |
| Mythology A-Z | 0 | - | 4.31 | 37,278 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,836 |
