| Prime Ministers of the UK | 0 | - | 4.95 | 381,347 |
| Countries of the Popes | 0 | - | 4.86 | 108,663 |
| Canadian Prime Ministers Quiz | 0 | - | 4.64 | 49,630 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 100,092 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 178,871 |
| Soviet Leaders 1917–1991 | 0 | - | 4.42 | 87,369 |
| Countries that Visit the UK the Most | 0 | - | 4.85 | 62,639 |
| English Monarchs Quiz | 0 | - | 4.91 | 447,226 |
| Prime Ministers of Australia | 0 | - | 4.47 | 27,829 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,171,530 |
| Top 10 Richest Countries in Europe | 0 | - | 4.88 | 135,291 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 64,879 |
| Country by Photo of its Leader | 0 | - | 4.79 | 115,254 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 71,728 |
| Roman Emperors | 0 | - | 4.95 | 95,941 |
| Monty Python Quotes | 0 | - | 4.89 | 40,407 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 222,147 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 88,823 |
| The Trojan War | 0 | - | 4.81 | 35,958 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 584,530 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.81 | 85,459 |
| Countries Italy Declared War On | 0 | - | 4.79 | 39,956 |
| Biggest Trading Partners - Spain | 0 | - | 4.90 | 50,292 |
| Biggest Trading Partners - UK | 0 | - | 4.86 | 57,039 |
| Name the Popes Quiz | 0 | - | 4.45 | 120,645 |
| Biggest Trading Partners - Germany | 0 | - | 4.98 | 62,554 |
| Olympian Gods Quiz | 0 | - | 4.96 | 457,319 |
| Name that Greek Letter | 0 | - | 4.94 | 295,987 |
| National Founders | 0 | - | 4.38 | 79,628 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 177,313 |
| Paramount Leaders of China | 0 | - | 4.31 | 9,939 |
| U.S. Presidents by Picture | 0 | - | 4.85 | 394,558 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 147,966 |
| Ancient Greek Words | 0 | - | 4.90 | 97,517 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.58 | 46,312 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 48,708 |
| UK Cities Map Quiz | 0 | - | 4.94 | 433,354 |
| The Dictator Files: Chairman Mao | 0 | - | 4.32 | 18,524 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 353,134 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.92 | 49,596 |
| The Reign of Napoleon | 0 | - | 4.53 | 36,106 |
| Counties of England Map Quiz | 0 | - | 4.97 | 286,914 |
| Pope Facts | 0 | - | 4.42 | 26,890 |
| Prime Ministers of Israel | 0 | - | 4.10 | 16,131 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 222,135 |
| Name a Valid U.S. President #1 | 0 | - | 4.93 | 167,155 |
| Countries of Europe After World War II | 0 | - | 4.98 | 170,892 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 139,588 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 133,718 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 58,755 |
| Countries of the Soviet Union | 0 | - | 4.98 | 184,869 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 74,536 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.32 | 39,858 |
| Countries Bordering France | 0 | - | 4.87 | 357,425 |
| Countries Bordering Germany | 0 | - | 4.99 | 340,735 |
| States of the German Confederation in 1848 | 0 | - | 4.83 | 26,534 |
| Figures from Greek Mythology | 0 | - | 4.92 | 169,468 |
| Political Movements by Country | 0 | - | 4.46 | 68,539 |
| Nordic Countries and Capitals | 0 | - | 4.94 | 76,681 |
| Biggest Spanish Empire Countries | 0 | - | 4.90 | 93,602 |
| Countries Closest to Spain | 0 | - | 4.95 | 205,956 |
| UK Immigration by Country | 0 | - | 4.95 | 125,266 |
| Arthurian Legend | 0 | - | 4.35 | 24,286 |
| United Kingdom Country Quiz | 0 | - | 4.94 | 118,819 |
| Top 100 UK Baby Boys' Names in 1850 | 0 | - | 4.41 | 60,926 |
| Most-Visited Countries by the British | 0 | - | 4.64 | 60,857 |
| Counties of the UK and Ireland | 0 | - | 4.97 | 104,081 |
| World Capitals Closest to London | 0 | - | 4.91 | 93,422 |
| 50 Busiest Air Routes from London | 0 | - | 4.89 | 86,005 |
| Scotland Trivia | 0 | - | 4.57 | 54,965 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 84,611 |
| Top 10 Richest Countries in Asia | 0 | - | 4.87 | 80,986 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 101,803 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 93,597 |
| African Countries with the Most Christians | 0 | - | 4.92 | 67,381 |
| Top 10 Richest Countries in Africa | 0 | - | 4.87 | 67,799 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 109,590 |
| U.S. Federal Agency Acronyms | 0 | - | 4.51 | 75,899 |
| All U.S. Supreme Court Justices | 0 | - | 4.49 | 27,324 |
| U.S. Cabinet Departments | 0 | - | 4.85 | 67,582 |
| Deadliest U.S. Wars | 0 | - | 4.83 | 158,117 |
| Every European Country Shape | 0 | - | 4.95 | 171,396 |
| Most Guessed European Capitals | 0 | - | 4.89 | 96,472 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.71 | 53,850 |
| Most Forested European Countries | 0 | - | 4.82 | 68,248 |
| Category Elimination - European Countries #1 | 0 | - | 4.87 | 76,691 |
| European Capital Superlatives - Top 2 | 0 | - | 4.93 | 61,687 |
| Countries Bordering Austria | 0 | - | 4.97 | 110,036 |
| Countries that Visit France the Most | 0 | - | 4.84 | 39,920 |
| Countries Closest to Metropolitan France | 0 | - | 4.87 | 66,275 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 43,972 |
| Countries With the Most German Speakers | 0 | - | 4.88 | 52,125 |
| Countries Bordering Italy | 0 | - | 4.92 | 78,801 |
| Countries Closest to Italy | 0 | - | 4.97 | 179,059 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.82 | 9,912 |
| Ancient Roman Trivia #2 | 0 | - | 4.55 | 35,398 |
| Geography of the Roman Empire | 0 | - | 4.55 | 48,510 |
| The Life of Julius Caesar | 0 | - | 4.46 | 32,115 |
| Roman Names for Places | 0 | - | 4.66 | 41,518 |
| Greenland Country Quiz | 0 | - | 4.81 | 32,362 |
| Countries Closest to Iceland | 0 | - | 4.87 | 62,818 |
| Modern Day Countries of the Portuguese Empire on a Map | 0 | - | 4.52 | 45,088 |
| Countries that Beat Portugal | 0 | - | 4.84 | 35,657 |
| Geography of the Spanish Empire | 0 | - | 4.48 | 35,226 |
| Countries that Beat Spain | 0 | - | 4.95 | 55,850 |
| The United States... or the United Kingdom? | 0 | - | 4.89 | 90,266 |
| Countries that Beat the United Kingdom | 0 | - | 4.57 | 58,571 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 54,722 |
| British History A-Z | 0 | - | 4.47 | 39,515 |
| Houses of British Monarchs | 0 | - | 4.50 | 52,113 |
| English First Names of the Middle Ages | 0 | - | 4.41 | 45,419 |
| British History Quiz for Dummies | 0 | - | 4.54 | 61,639 |
| 2025 Football League Teams | 0 | - | 4.94 | 345,206 |
| Biggest Trading Partners - Australia | 0 | - | 4.88 | 42,887 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 71,220 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 116,098 |
| Countries that Bordered the USSR | 0 | - | 4.95 | 152,578 |
| Biggest Trading Partners - Russia | 0 | - | 4.56 | 34,003 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 43,847 |
| Biggest Cities in Germany | 0 | - | 4.95 | 263,205 |
| Countries that Beat Germany | 0 | - | 4.87 | 70,268 |
| Greece by Picture | 0 | - | 4.14 | 13,763 |
| Mythology A-Z | 0 | - | 4.28 | 34,030 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.55 | 55,888 |
| Ancient Greece - Multiple Choice | 0 | - | 4.53 | 38,662 |
| Ireland Country Quiz | 0 | - | 4.72 | 125,233 |
| Countries that Beat Italy | 0 | - | 4.88 | 45,370 |
| Biggest Roman Empire Countries | 0 | - | 4.88 | 82,029 |
| Seven Hills of Rome | 0 | - | 4.68 | 8,542 |
| Geography of the Dutch Empire | 0 | - | 4.71 | 32,443 |
| Countries Once Held by Sweden | 0 | - | 4.17 | 33,515 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 74,701 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 99,923 |
| UK Baby Girl Names by Decade | 0 | - | 4.30 | 128,709 |
| UK Baby Boy Names by Decade | 0 | - | 4.36 | 104,820 |
| Invasions of Great Britain | 0 | - | 4.49 | 55,610 |
| Satellite Images - The United Kingdom | 0 | - | 4.43 | 25,509 |
| Members of the British Royal Family | 0 | - | 4.11 | 109,288 |
| Shakespeare's Plays Quiz | 0 | - | 4.41 | 348,670 |
| English Royal Consorts | 0 | - | 4.27 | 34,545 |
| The Reign of Queen Elizabeth I | 0 | - | 4.50 | 29,651 |
| Top 4 in English Football, 1888–2024 | 0 | - | 4.95 | 107,546 |
| 2025 English Premier League Teams | 0 | - | 4.85 | 741,067 |
| Scotland A-Z | 0 | - | 4.75 | 37,753 |
| The Wales Quiz | 0 | - | 4.44 | 27,291 |
| Biggest Trading Partners - Turkey | 0 | - | 4.82 | 44,936 |
| Countries Closest to Israel | 0 | - | 4.88 | 98,697 |
| Biggest Trading Partners - China | 0 | - | 4.96 | 70,076 |
| Countries with the Most Hindus | 0 | - | 4.92 | 113,228 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 48,359 |
| Biggest Trading Partners - South Africa | 0 | - | 4.82 | 37,565 |
| Biggest Trading Partners - Colombia | 0 | - | 4.89 | 35,501 |
| U.S. Bill of Rights | 0 | - | 4.56 | 31,074 |
| American Political Words | 0 | - | 4.41 | 22,321 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.33 | 10,361 |
| U.S. Vice Presidents | 0 | - | 4.42 | 119,568 |
| U.S. Presidential Trivia #1 | 0 | - | 4.51 | 96,974 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.56 | 81,614 |
| U.S. Presidential Trivia #2 | 0 | - | 4.51 | 39,732 |
| Assassinated U.S. Presidents | 0 | - | 4.54 | 80,047 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 33,538 |
| The American Revolution | 0 | - | 4.51 | 51,695 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 457,376 |
| Random European Flag to Country | 0 | - | 4.89 | 161,726 |
| French Geography Quiz #1 | 0 | - | 4.86 | 31,078 |
| Flags of Countries That Border France | 0 | - | 4.90 | 112,518 |
| Flags of Countries that Border Germany | 0 | - | 4.85 | 87,226 |
| All Countries that Once Bordered Germany | 0 | - | 4.35 | 70,045 |
| Ancient Greece A-Z | 0 | - | 4.65 | 20,748 |
| The Life of Alexander the Great | 0 | - | 4.51 | 17,454 |
| Famous Ancient Romans | 0 | - | 4.72 | 74,340 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 111,582 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 399,665 |
| British Monopoly Board - Map Quiz | 0 | - | 4.45 | 19,201 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.33 | 25,403 |
| Countries "Ruled" by King Charles III | 0 | - | 4.79 | 80,720 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 255,426 |
| The Vietnam War | 0 | - | 4.41 | 32,826 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 98,476 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 244,856 |
| US Presidents - 1 Minute Sprint | 0 | - | 4.44 | 278,970 |
| Name a Valid U.S. President #2 | 0 | - | 4.52 | 61,222 |
| Category Elimination - U.S. States #1 | 0 | - | 4.90 | 194,947 |
| Europe Map Quiz | 0 | - | 5.00 | 4,293,949 |
| Random European Countries on a Map | 0 | - | 4.98 | 259,922 |
| Save Europeans by Guessing Countries | 0 | - | 4.87 | 167,166 |
| Arms Exports - Russia | 0 | - | 4.47 | 23,350 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 100,004 |
| Roman to Greek God | 0 | - | 4.51 | 113,906 |
| Communist Countries in History | 0 | - | 4.63 | 455,464 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 66,651 |
| Byzantine History | 0 | - | 4.87 | 26,235 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.26 | 71,942 |
| Netherlands by Picture | 0 | - | 4.19 | 18,020 |
| History of The Netherlands | 0 | - | 4.42 | 15,770 |
| The Vikings! | 0 | - | 4.44 | 27,110 |
| Denmark Country Quiz | 0 | - | 4.79 | 69,640 |
| Finland Country Quiz | 0 | - | 4.48 | 52,968 |
| Norway Country Quiz | 0 | - | 4.42 | 56,665 |
| Iceland Country Quiz | 0 | - | 4.71 | 38,822 |
