| Prime Ministers of the UK | 0 | - | 4.95 | 438,324 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,902 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,463 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,194 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 94,902 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,399 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,692,255 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,589 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,756 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,003 |
| Name the English Monarchs | 0 | - | 4.91 | 502,003 |
| Country by Photo of its Leader | 0 | - | 4.72 | 123,960 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,605 |
| The Trojan War | 0 | - | 4.83 | 39,676 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,667 |
| Name that Greek Letter | 0 | - | 4.93 | 323,257 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,672 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,283 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,467 |
| Roman Emperors | 0 | - | 4.95 | 119,795 |
| Monty Python Quotes | 0 | - | 4.88 | 42,447 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,272 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,774 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,781 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,397 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,758 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,255 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,011 |
| Countries of the Popes | 0 | - | 4.79 | 127,988 |
| National Founders | 0 | - | 4.40 | 83,812 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 426,154 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,347 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,738 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,061 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 381,283 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,950 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,926 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,928 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,056 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,219 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,666 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,293 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 191,533 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,202 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,388 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,032 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 79,984 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,464 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,831 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,490 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,664 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,461 |
| Countries Bordering France | 0 | - | 4.83 | 402,176 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,896 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,428 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,177 |
| Political Movements by Country | 0 | - | 4.46 | 72,494 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,717 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,524 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,206 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,480 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,950 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,067 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,835 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,776 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,643 |
| Every European Country Shape | 0 | - | 4.96 | 201,449 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,477 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,443 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,923 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,103 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,746 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,238 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,825 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,128 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,374 |
| Counties of Ireland | 0 | - | 4.92 | 194,935 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,804 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,877 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,604 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,850 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,801 |
| UK Immigration by Country | 0 | - | 4.94 | 140,781 |
| Arthurian Legend | 0 | - | 4.33 | 25,105 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,616 |
| Top 100 UK Baby Boys' Names in 1850 | 0 | - | 4.42 | 69,757 |
| Most-Visited Countries by the British | 0 | - | 4.64 | 68,543 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 130,432 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,587 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,768 |
| Scotland Trivia | 0 | - | 4.58 | 57,575 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,120 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 133,549 |
| Hindu Countries | 0 | - | 4.86 | 50,071 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,506 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,516 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,869 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,018 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,266 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,489 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,593 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,117 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,174 |
| Countries that Beat Germany | 0 | - | 4.95 | 106,228 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,968 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,409 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,562 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,634 |
| Ireland Country Quiz | 0 | - | 4.69 | 134,456 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,386 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,714 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,878 |
| Roman Names for Places | 0 | - | 4.62 | 58,227 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,940 |
| Netherlands by Picture | 0 | - | 4.23 | 19,656 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,479 |
| Modern Day Countries of the Portuguese Empire on a Map | 0 | - | 4.56 | 51,675 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,216 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,139 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,845 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,460 |
| Countries that Beat the United Kingdom | 0 | - | 4.53 | 63,601 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 64,144 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,768 |
| British History A-Z #1 | 0 | - | 4.45 | 46,438 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,618 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,617 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,527 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 400,769 |
| Pope Facts | 0 | - | 4.39 | 31,221 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,938 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,388 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,274 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,600 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,350 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,684 |
| Presidential Middle Names | 0 | - | 4.41 | 60,167 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,244 |
| Assassinated U.S. Presidents | 0 | - | 4.62 | 94,516 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,958 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,387 |
| The American Revolution | 0 | - | 4.52 | 54,229 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,150 |
| Random European Flag to Country | 0 | - | 4.89 | 182,170 |
| History of Russia Quiz | 0 | - | 4.47 | 31,899 |
| Flags of Countries That Border France | 0 | - | 4.88 | 122,791 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,927 |
| All Countries that Once Bordered Germany | 0 | - | 4.34 | 74,908 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,125 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,251 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,486 |
| Ancient Greek Words | 0 | - | 4.93 | 111,459 |
| History of Italy | 0 | - | 4.55 | 31,957 |
| Italy by Picture | 0 | - | 4.41 | 30,910 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,799 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,173 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,637 |
| Countries Once Held by Sweden | 0 | - | 4.17 | 34,774 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,718 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,198 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,187 |
| UK Baby Girl Names by Decade | 0 | - | 4.36 | 160,312 |
| UK Baby Boy Names by Decade | 0 | - | 4.37 | 132,084 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,826 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,035 |
| Name a James Bond Movie A-Z | 0 | - | 4.60 | 10,376 |
| English Royal Consorts | 0 | - | 4.37 | 37,336 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 140,821 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 858,429 |
| Scotland A-Z | 0 | - | 4.73 | 41,257 |
| The Wales Quiz | 0 | - | 4.47 | 29,135 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,681 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,932 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,121 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,014 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,770 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,925 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,552 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 134,003 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,695 |
| Europe Map Quiz | 0 | - | 5.00 | 4,758,647 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,944 |
| Random European Countries on a Map | 0 | - | 4.97 | 283,243 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 317,775 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,674 |
| Arms Exports - Russia | 0 | - | 4.48 | 25,129 |
| German History A-Z | 0 | - | 4.49 | 24,590 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,570 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,069 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,686 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,656 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,206 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 387,758 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,635 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 37,770 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,240 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,721 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,856 |
| The Vietnam War | 0 | - | 4.44 | 35,500 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,203 |
