| Prime Ministers of the UK | 0 | - | 4.95 | 438,298 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,692,152 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,899 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 94,898 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,389 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,006 |
| Countries of the Popes | 0 | - | 4.79 | 127,985 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,428 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,996 |
| Name the English Monarchs | 0 | - | 4.91 | 501,963 |
| Country by Photo of its Leader | 0 | - | 4.72 | 123,957 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,462 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,597 |
| The Trojan War | 0 | - | 4.83 | 39,674 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,636 |
| Name that Greek Letter | 0 | - | 4.93 | 323,250 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,661 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,464 |
| Roman Emperors | 0 | - | 4.95 | 119,786 |
| Monty Python Quotes | 0 | - | 4.88 | 42,447 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,267 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,392 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,722 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,758 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,251 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 426,145 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,343 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,797 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,059 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,598 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,347 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,682 |
| Presidential Middle Names | 0 | - | 4.41 | 60,165 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 381,276 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,243 |
| Assassinated U.S. Presidents | 0 | - | 4.62 | 94,514 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,387 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,937 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,927 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,570 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,646 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,054 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,205 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 37,766 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,666 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,287 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,956 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 191,528 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,205 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,197 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,382 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,020 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 79,876 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,448 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,822 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,726 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,485 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,663 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,460 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,779 |
| Countries Bordering France | 0 | - | 4.83 | 402,155 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,839 |
| Italy by Picture | 0 | - | 4.41 | 30,910 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,680 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,158 |
| Animals in British History | 0 | - | 4.44 | 25,986 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,772 |
| Pope Facts | 0 | - | 4.39 | 31,221 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,711 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,521 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,835 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,149 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,247 |
| First Ladies of the United States | 0 | - | 4.28 | 85,584 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,212 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 77,001 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,173 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,944 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,636 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,812 |
| Every European Country Shape | 0 | - | 4.96 | 201,445 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,440 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,582 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,186 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,755 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,745 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,235 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,819 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,125 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,360 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 144,427 |
| Counties of Ireland | 0 | - | 4.92 | 194,926 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,884 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,799 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,282 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,872 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,072 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,008 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,597 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,841 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,799 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,699 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,174 |
| UK Immigration by Country | 0 | - | 4.94 | 140,773 |
| Arthurian Legend | 0 | - | 4.33 | 25,102 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,606 |
| Top 100 UK Baby Boys' Names in 1850 | 0 | - | 4.42 | 69,754 |
| Most-Visited Countries by the British | 0 | - | 4.64 | 68,539 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 130,416 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,586 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,762 |
| Scotland Trivia | 0 | - | 4.58 | 57,575 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,117 |
| National Founders | 0 | - | 4.40 | 83,811 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,505 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,515 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,939 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,863 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,010 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,260 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,585 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,111 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,158 |
| Countries that Beat Germany | 0 | - | 4.95 | 106,212 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,964 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,408 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,555 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,629 |
| Ireland Country Quiz | 0 | - | 4.69 | 134,453 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,886 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,381 |
| 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 | 58,226 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,470 |
| Modern Day Countries of the Portuguese Empire on a Map | 0 | - | 4.56 | 51,672 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,211 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,139 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,840 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,451 |
| Countries that Beat the United Kingdom | 0 | - | 4.53 | 63,600 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 64,140 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,760 |
| British History A-Z #1 | 0 | - | 4.45 | 46,437 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,615 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,615 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,522 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 400,741 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,387 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,615 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,719 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,634 |
| The John Adams Presidency | 0 | - | 4.12 | 8,740 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,735 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,844 |
| The American Revolution | 0 | - | 4.52 | 54,229 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,129 |
| Random European Flag to Country | 0 | - | 4.89 | 182,160 |
| History of Russia Quiz | 0 | - | 4.47 | 31,899 |
| Flags of Countries That Border France | 0 | - | 4.88 | 122,784 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,926 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,925 |
| All Countries that Once Bordered Germany | 0 | - | 4.34 | 74,903 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,124 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,230 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,486 |
| Ancient Greek Words | 0 | - | 4.93 | 111,451 |
| History of Italy | 0 | - | 4.55 | 31,955 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,785 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,173 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,636 |
| Countries Once Held by Sweden | 0 | - | 4.17 | 34,773 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,711 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,196 |
| UK Baby Girl Names by Decade | 0 | - | 4.36 | 160,305 |
| UK Baby Boy Names by Decade | 0 | - | 4.37 | 132,079 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,824 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,732 |
| Name a James Bond Movie A-Z | 0 | - | 4.60 | 10,376 |
| Shakespearean Characters | 0 | - | 4.38 | 37,622 |
| English Royal Consorts | 0 | - | 4.37 | 37,336 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 140,807 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 858,358 |
| The Wales Quiz | 0 | - | 4.47 | 29,134 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,932 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,116 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,010 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,764 |
| The George Washington Presidency | 0 | - | 4.03 | 14,539 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,925 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,312 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,667 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,921 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,544 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,998 |
| Europe Map Quiz | 0 | - | 5.00 | 4,758,542 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,942 |
| Random European Countries on a Map | 0 | - | 4.97 | 283,229 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 317,771 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,661 |
