| Prime Ministers of the UK | 0 | - | 4.95 | 437,151 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,815 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,341 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,312 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 94,761 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,033 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,681,045 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,962 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,510 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,784 |
| Name the English Monarchs | 0 | - | 4.91 | 500,750 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,730 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,342 |
| The Trojan War | 0 | - | 4.83 | 39,611 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,310 |
| Name that Greek Letter | 0 | - | 4.93 | 322,821 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,350 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,191 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,355 |
| Roman Emperors | 0 | - | 4.95 | 119,491 |
| Monty Python Quotes | 0 | - | 4.88 | 42,405 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,013 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,680 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,739 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,185 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,661 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,000 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,741 |
| Countries of the Popes | 0 | - | 4.79 | 127,717 |
| National Founders | 0 | - | 4.40 | 83,765 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 425,402 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,083 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,488 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,045 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 380,658 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,545 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,860 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,816 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,912 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,701 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,636 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,993 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 190,982 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,026 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,847 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,058 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,690 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 75,980 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,111 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,592 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,324 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,537 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,412 |
| Countries Bordering France | 0 | - | 4.83 | 401,491 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,296 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,398 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,850 |
| Political Movements by Country | 0 | - | 4.46 | 72,420 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,466 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,283 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,636 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,881 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,884 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,037 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,738 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,734 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,259 |
| Every European Country Shape | 0 | - | 4.96 | 201,058 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,402 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,345 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,620 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,977 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,677 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,102 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,741 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,042 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,729 |
| Counties of Ireland | 0 | - | 4.92 | 194,280 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,693 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,507 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,448 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,564 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,392 |
| UK Immigration by Country | 0 | - | 4.94 | 140,513 |
| Arthurian Legend | 0 | - | 4.33 | 25,086 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,167 |
| Top 100 UK Baby Boys' Names in 1850 | 0 | - | 4.42 | 69,636 |
| Most-Visited Countries by the British | 0 | - | 4.64 | 68,402 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,797 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,144 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,591 |
| Scotland Trivia | 0 | - | 4.58 | 57,526 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,836 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 120,432 |
| Hindu Countries | 0 | - | 4.86 | 49,913 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,317 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,488 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,538 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,693 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,020 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,438 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,342 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,962 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,635 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,966 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,822 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,341 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,351 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,570 |
| Ireland Country Quiz | 0 | - | 4.69 | 134,294 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,221 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,660 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,825 |
| Roman Names for Places | 0 | - | 4.62 | 58,117 |
| Countries Closest to Iceland | 0 | - | 4.89 | 73,275 |
| Modern Day Countries of the Portuguese Empire on a Map | 0 | - | 4.56 | 51,534 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,040 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,097 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,717 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,252 |
| Countries that Beat the United Kingdom | 0 | - | 4.53 | 63,479 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 63,963 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,710 |
| British History A-Z #1 | 0 | - | 4.45 | 46,346 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,525 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,534 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,399 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 399,644 |
| Pope Facts | 0 | - | 4.39 | 31,157 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,728 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,268 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,179 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,394 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,070 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,430 |
| Presidential Middle Names | 0 | - | 4.41 | 60,006 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,080 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,307 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,884 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,305 |
| The American Revolution | 0 | - | 4.52 | 54,175 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,210 |
| Random European Flag to Country | 0 | - | 4.89 | 181,746 |
| History of Russia Quiz | 0 | - | 4.49 | 31,863 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,561 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,743 |
| All Countries that Once Bordered Germany | 0 | - | 4.34 | 74,805 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,097 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,982 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,463 |
| Ancient Greek Words | 0 | - | 4.93 | 111,214 |
| History of Italy | 0 | - | 4.55 | 31,918 |
| Italy by Picture | 0 | - | 4.41 | 30,859 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,675 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,148 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,593 |
| Countries Once Held by Sweden | 0 | - | 4.17 | 34,750 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,603 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,910 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,130 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,031 |
| UK Baby Girl Names by Decade | 0 | - | 4.36 | 159,990 |
| UK Baby Boy Names by Decade | 0 | - | 4.37 | 131,804 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,765 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,967 |
| Name a James Bond Movie A-Z | 0 | - | 4.60 | 10,341 |
| English Royal Consorts | 0 | - | 4.37 | 37,292 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 140,258 |
| 2025–2026 English Premier League Teams | 0 | - | 4.86 | 856,239 |
| Scotland A-Z | 0 | - | 4.73 | 41,179 |
| The Wales Quiz | 0 | - | 4.47 | 29,100 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,454 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,898 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,914 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,621 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,397 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,758 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 219,985 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,598 |
| Europe Map Quiz | 0 | - | 5.00 | 4,750,098 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,875 |
| Random European Countries on a Map | 0 | - | 4.97 | 282,869 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 317,107 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,505 |
| Arms Exports - Russia | 0 | - | 4.48 | 25,105 |
| German History A-Z | 0 | - | 4.49 | 24,543 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,482 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,041 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,406 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,615 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,178 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 387,153 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,521 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.91 | 37,501 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,183 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,688 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,409 |
| The Vietnam War | 0 | - | 4.43 | 35,442 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,103 |
| Communist Countries in History | 0 | - | 4.63 | 494,391 |
