| Prime Ministers of the UK | 0 | - | 4.96 | 436,013 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,758 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,211 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,976 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,589 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 79,766 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,773 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,604 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,661 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,667,766 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,556 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,309 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,499 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 643,670 |
| Name that Greek Letter | 0 | - | 4.94 | 322,221 |
| Monty Python Quotes | 0 | - | 4.88 | 42,358 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,613 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,691 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,865 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,017 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,432 |
| Countries of the Popes | 0 | - | 4.79 | 127,480 |
| National Founders | 0 | - | 4.40 | 83,703 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 424,555 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,733 |
| Ancient Greek Words | 0 | - | 4.93 | 110,978 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,516 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,212 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,018 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 380,100 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 190,422 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,850 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,071 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,111 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,680 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,092 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,687 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,938 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,760 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,921 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,436 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,604 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,179 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,068 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,636 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,640 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,616 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,317 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,711 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,795 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,368 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,259 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,835 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,388 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,357 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,352 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,293 |
| UK Immigration by Country | 0 | - | 4.94 | 139,980 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,659 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,474 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,163 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,555 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 117,652 |
| Political Movements by Country | 0 | - | 4.46 | 72,349 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,379 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,813 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,923 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,404 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,686 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,595 |
| Every European Country Shape | 0 | - | 4.96 | 200,630 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,306 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,255 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,293 |
| Ireland Country Quiz | 0 | - | 4.69 | 134,115 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,089 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,227 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,880 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,063 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,547 |
| Name the English Monarchs | 0 | - | 4.92 | 499,364 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 61,690 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 398,445 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,547 |
| Hindu Countries | 0 | - | 4.86 | 49,740 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,126 |
| U.S. Vice Presidents | 0 | - | 4.39 | 135,439 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,163 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,777 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,220 |
| Presidential Middle Names | 0 | - | 4.41 | 59,853 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,903 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,030 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,235 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,124 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,339 |
| Random European Flag to Country | 0 | - | 4.89 | 181,333 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,749 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,386 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,025 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,078 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,756 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,793 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,008 |
| Germany A-Z | 0 | - | 4.56 | 62,413 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,555 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,632 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,717 |
| The Trojan War | 0 | - | 4.83 | 39,517 |
| Famous Ancient Romans | 0 | - | 4.69 | 85,112 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,280 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,967 |
| Italy A-Z | 0 | - | 4.49 | 57,919 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,872 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,195 |
| Roman Emperors | 0 | - | 4.95 | 118,979 |
| Countries Closest to Iceland | 0 | - | 4.89 | 73,055 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,470 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,020 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 63,768 |
| Middle Earth Geography | 0 | - | 4.56 | 39,596 |
| Lord of the Rings Trivia | 0 | - | 4.53 | 80,957 |
| Members of the Fellowship of the Ring | 0 | - | 4.74 | 45,601 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,708 |
| British History A-Z #1 | 0 | - | 4.45 | 46,240 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,439 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,098 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 139,710 |
| Scotland A-Z | 0 | - | 4.73 | 41,109 |
| Pope Facts | 0 | - | 4.39 | 31,109 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,853 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,796 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,117 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,074 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 303,919 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,815 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,590 |
| The American Revolution | 0 | - | 4.52 | 54,121 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 219,212 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,021 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,231 |
| Random European Countries on a Map | 0 | - | 4.97 | 282,441 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 316,432 |
| History of Russia Quiz | 0 | - | 4.49 | 31,828 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,376 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,547 |
| All Countries that Once Bordered Germany | 0 | - | 4.34 | 74,686 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,679 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,388 |
| History of Italy | 0 | - | 4.55 | 31,873 |
| Italy by Picture | 0 | - | 4.41 | 30,807 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,643 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,535 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,056 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,863 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,668 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,797 |
| Name a James Bond Movie A-Z | 0 | - | 4.60 | 10,307 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.91 | 37,275 |
| Animals in British History | 0 | - | 4.44 | 25,913 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,642 |
| 2025–2026 English Premier League Teams | 0 | - | 4.86 | 853,982 |
| The Vietnam War | 0 | - | 4.43 | 35,362 |
| History of India | 0 | - | 4.61 | 21,325 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,042 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,569 |
| History of South Africa | 0 | - | 4.60 | 17,629 |
| 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. Governors Who Ran For President | 0 | - | 4.47 | 20,187 |
| First Ladies of the United States | 0 | - | 4.28 | 85,329 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,847 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,145 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,576 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,053 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,865 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,720 |
| Europe Map Quiz | 0 | - | 5.00 | 4,740,950 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,209 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,818 |
| Most Forested European Countries | 0 | - | 4.80 | 75,041 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,554 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,257 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,479 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 210,540 |
| Arms Exports - Russia | 0 | - | 4.48 | 25,045 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,707 |
| History of Austria | 0 | - | 4.70 | 17,783 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,998 |
| Geography of the French Empire | 0 | - | 4.45 | 26,977 |
| The French Revolution | 0 | - | 4.46 | 23,843 |
| History of France | 0 | - | 4.59 | 56,457 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,413 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,049 |
| German History A-Z | 0 | - | 4.49 | 24,488 |
| Mythology A-Z | 0 | - | 4.31 | 37,071 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,557 |
| Countries that Beat Ireland | 0 | - | 4.40 | 34,148 |
| Roman History Vocabulary | 0 | - | 4.40 | 57,506 |
