| Prime Ministers of the UK | 0 | - | 4.95 | 437,616 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,843 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,408 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,702 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 94,817 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,169 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,686,786 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,265 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,634 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,871 |
| Name the English Monarchs | 0 | - | 4.91 | 501,276 |
| Country by Photo of its Leader | 0 | - | 4.72 | 123,824 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,449 |
| The Trojan War | 0 | - | 4.83 | 39,637 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,904 |
| Name that Greek Letter | 0 | - | 4.93 | 323,028 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,494 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,235 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,398 |
| Roman Emperors | 0 | - | 4.95 | 119,623 |
| Monty Python Quotes | 0 | - | 4.88 | 42,428 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,134 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,724 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,755 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,275 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,705 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,101 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,859 |
| Countries of the Popes | 0 | - | 4.79 | 127,842 |
| National Founders | 0 | - | 4.40 | 83,782 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 425,746 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,212 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,601 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,049 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 381,000 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,731 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,890 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,862 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,982 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,939 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,643 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,122 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 191,263 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,130 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,988 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,196 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,844 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 76,091 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,241 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,675 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,399 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,582 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,431 |
| Countries Bordering France | 0 | - | 4.83 | 401,777 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,514 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,408 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,981 |
| Political Movements by Country | 0 | - | 4.46 | 72,450 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,576 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,383 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,767 |
| Top 10 Richest Countries in Africa | 0 | - | 4.86 | 75,910 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,160 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,914 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,061 |
| U.S. Cabinet Departments | 0 | - | 4.85 | 72,788 |
| 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 | 201,241 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,431 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,380 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,720 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,027 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,703 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,166 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,776 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,075 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,992 |
| Counties of Ireland | 0 | - | 4.92 | 194,536 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,735 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,665 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,517 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,674 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,551 |
| UK Immigration by Country | 0 | - | 4.94 | 140,623 |
| Arthurian Legend | 0 | - | 4.33 | 25,094 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,360 |
| 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 | 130,046 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,206 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,659 |
| Scotland Trivia | 0 | - | 4.58 | 57,545 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,957 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 126,898 |
| Hindu Countries | 0 | - | 4.86 | 49,983 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,388 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,499 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,667 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,841 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,130 |
| 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 | 47,030 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,868 |
| Countries that Beat Germany | 0 | - | 4.95 | 106,070 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,886 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,375 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,436 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,598 |
| Ireland Country Quiz | 0 | - | 4.69 | 134,355 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,289 |
| 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 | 59,120 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,111 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,769 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,341 |
| Countries that Beat the United Kingdom | 0 | - | 4.53 | 63,523 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 64,040 |
| 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 | 65,557 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,570 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,449 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 400,115 |
| Pope Facts | 0 | - | 4.39 | 31,191 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,808 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,324 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,220 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,502 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,210 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,556 |
| Presidential Middle Names | 0 | - | 4.41 | 60,082 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,161 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,417 |
| 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 | 54,207 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,562 |
| Random European Flag to Country | 0 | - | 4.89 | 181,888 |
| 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 | 96,833 |
| All Countries that Once Bordered Germany | 0 | - | 4.34 | 74,847 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,112 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,415 |
| The Life of Alexander the Great | 0 | - | 4.50 | 18,474 |
| Ancient Greek Words | 0 | - | 4.93 | 111,301 |
| History of Italy | 0 | - | 4.55 | 31,930 |
| Italy by Picture | 0 | - | 4.41 | 30,880 |
| 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 | 34,759 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,643 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,155 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,095 |
| UK Baby Girl Names by Decade | 0 | - | 4.36 | 160,139 |
| UK Baby Boy Names by Decade | 0 | - | 4.37 | 131,940 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,783 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,999 |
| 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 | 140,492 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 857,180 |
| Scotland A-Z | 0 | - | 4.73 | 41,213 |
| The Wales Quiz | 0 | - | 4.47 | 29,117 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,544 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,912 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,007 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,806 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,566 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,840 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,266 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,790 |
| Europe Map Quiz | 0 | - | 5.00 | 4,754,270 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,908 |
| Random European Countries on a Map | 0 | - | 4.97 | 283,008 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 317,440 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,946 |
| 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 | 125,519 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,974 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,189 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 387,410 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,582 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 37,638 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,208 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,705 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,578 |
| The Vietnam War | 0 | - | 4.44 | 35,473 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,147 |
| Communist Countries in History | 0 | - | 4.63 | 494,748 |
