| Prime Ministers of the UK | 0 | - | 4.95 | 437,636 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,843 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,409 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,746 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 94,817 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,175 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,686,878 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,280 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,640 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,875 |
| Name the English Monarchs | 0 | - | 4.91 | 501,290 |
| Country by Photo of its Leader | 0 | - | 4.72 | 123,825 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,452 |
| The Trojan War | 0 | - | 4.83 | 39,638 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,910 |
| Name that Greek Letter | 0 | - | 4.93 | 323,028 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,496 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,235 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,398 |
| Roman Emperors | 0 | - | 4.95 | 119,625 |
| Monty Python Quotes | 0 | - | 4.88 | 42,430 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,136 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,725 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,755 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,282 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,705 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,106 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,861 |
| Countries of the Popes | 0 | - | 4.79 | 127,844 |
| National Founders | 0 | - | 4.40 | 83,783 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 425,747 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,214 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,604 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,049 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 381,006 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,734 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,893 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,862 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,983 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,942 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,643 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,124 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 191,264 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,131 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,988 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,199 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,848 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 76,092 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,243 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,679 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,400 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,582 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,432 |
| Countries Bordering France | 0 | - | 4.83 | 401,785 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,517 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,408 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,983 |
| Political Movements by Country | 0 | - | 4.46 | 72,452 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,577 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,384 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,775 |
| Top 10 Richest Countries in Africa | 0 | - | 4.86 | 75,927 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,190 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,915 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,061 |
| U.S. Cabinet Departments | 0 | - | 4.85 | 72,789 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,750 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,470 |
| Every European Country Shape | 0 | - | 4.96 | 201,245 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,432 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,380 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,724 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,027 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,704 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,167 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,776 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,076 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,999 |
| Counties of Ireland | 0 | - | 4.92 | 194,549 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,735 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,669 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,522 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,678 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,552 |
| UK Immigration by Country | 0 | - | 4.94 | 140,626 |
| Arthurian Legend | 0 | - | 4.33 | 25,094 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,362 |
| Top 100 UK Baby Boys' Names in 1850 | 0 | - | 4.42 | 69,695 |
| Most-Visited Countries by the British | 0 | - | 4.64 | 68,459 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 130,059 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,207 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,660 |
| Scotland Trivia | 0 | - | 4.58 | 57,546 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,962 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 127,511 |
| Hindu Countries | 0 | - | 4.86 | 49,984 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,389 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,500 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,668 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,844 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,135 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,464 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,470 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,031 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,874 |
| Countries that Beat Germany | 0 | - | 4.95 | 106,074 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,887 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,375 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,438 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,599 |
| Ireland Country Quiz | 0 | - | 4.69 | 134,357 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,291 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,683 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,844 |
| Roman Names for Places | 0 | - | 4.62 | 58,160 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,349 |
| Modern Day Countries of the Portuguese Empire on a Map | 0 | - | 4.56 | 51,585 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,123 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,112 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,769 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,342 |
| Countries that Beat the United Kingdom | 0 | - | 4.53 | 63,524 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 64,041 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,732 |
| British History A-Z #1 | 0 | - | 4.45 | 46,384 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,558 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,570 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,451 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 400,122 |
| Pope Facts | 0 | - | 4.39 | 31,192 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,812 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,324 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,221 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,504 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,211 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,557 |
| Presidential Middle Names | 0 | - | 4.41 | 60,084 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,161 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,418 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,926 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,345 |
| The American Revolution | 0 | - | 4.52 | 54,208 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,571 |
| Random European Flag to Country | 0 | - | 4.89 | 181,890 |
| History of Russia Quiz | 0 | - | 4.49 | 31,878 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,651 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,835 |
| All Countries that Once Bordered Germany | 0 | - | 4.34 | 74,849 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,112 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,421 |
| The Life of Alexander the Great | 0 | - | 4.50 | 18,474 |
| Ancient Greek Words | 0 | - | 4.93 | 111,302 |
| History of Italy | 0 | - | 4.55 | 31,930 |
| Italy by Picture | 0 | - | 4.41 | 30,881 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,732 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,167 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,606 |
| Countries Once Held by Sweden | 0 | - | 4.17 | 34,760 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,644 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,156 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,098 |
| UK Baby Girl Names by Decade | 0 | - | 4.36 | 160,144 |
| UK Baby Boy Names by Decade | 0 | - | 4.37 | 131,943 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,783 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,000 |
| Name a James Bond Movie A-Z | 0 | - | 4.60 | 10,354 |
| English Royal Consorts | 0 | - | 4.37 | 37,308 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 140,499 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 857,198 |
| Scotland A-Z | 0 | - | 4.73 | 41,214 |
| The Wales Quiz | 0 | - | 4.47 | 29,117 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,555 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,913 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,011 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,807 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,567 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,840 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,269 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,791 |
| Europe Map Quiz | 0 | - | 5.00 | 4,754,336 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,908 |
| Random European Countries on a Map | 0 | - | 4.97 | 283,011 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 317,442 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,955 |
| Arms Exports - Russia | 0 | - | 4.48 | 25,118 |
| German History A-Z | 0 | - | 4.49 | 24,565 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,519 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,053 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,522 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,982 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,189 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 387,417 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,582 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 37,641 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,209 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,705 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,579 |
| The Vietnam War | 0 | - | 4.44 | 35,474 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,147 |
| Communist Countries in History | 0 | - | 4.63 | 494,754 |
