| Prime Ministers of the UK | 0 | - | 4.95 | 437,323 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,683,881 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,826 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 94,785 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,104 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,796 |
| Countries of the Popes | 0 | - | 4.79 | 127,771 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,403 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,823 |
| Name the English Monarchs | 0 | - | 4.91 | 500,988 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,775 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,381 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,392 |
| The Trojan War | 0 | - | 4.83 | 39,623 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,602 |
| Name that Greek Letter | 0 | - | 4.93 | 322,915 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,411 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,367 |
| Roman Emperors | 0 | - | 4.95 | 119,553 |
| Monty Python Quotes | 0 | - | 4.88 | 42,415 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,066 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,216 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,347 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,672 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,041 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 425,561 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,144 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,702 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,049 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,447 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,147 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,496 |
| Presidential Middle Names | 0 | - | 4.41 | 60,050 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 380,832 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,118 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,366 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,329 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,630 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,846 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,501 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,774 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,952 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,788 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 37,572 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,639 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,055 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,909 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 191,123 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,072 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,907 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,122 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,750 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 76,031 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,167 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,627 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,520 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,368 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,558 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,423 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,748 |
| Countries Bordering France | 0 | - | 4.83 | 401,627 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,413 |
| Italy by Picture | 0 | - | 4.41 | 30,869 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,454 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,914 |
| Animals in British History | 0 | - | 4.44 | 25,964 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,695 |
| Pope Facts | 0 | - | 4.39 | 31,167 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,517 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,316 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,765 |
| U.S. Vice Presidents | 0 | - | 4.39 | 135,912 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,229 |
| First Ladies of the United States | 0 | - | 4.28 | 85,473 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,188 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,873 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,135 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,920 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,372 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,775 |
| Every European Country Shape | 0 | - | 4.96 | 201,150 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,359 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,023 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,398 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,552 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,694 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,130 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,762 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,053 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,854 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 144,138 |
| Counties of Ireland | 0 | - | 4.92 | 194,396 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,703 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,719 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,217 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,581 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,990 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,851 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,471 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,627 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,487 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,465 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,010 |
| UK Immigration by Country | 0 | - | 4.94 | 140,552 |
| Arthurian Legend | 0 | - | 4.33 | 25,089 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,249 |
| Top 100 UK Baby Boys' Names in 1850 | 0 | - | 4.42 | 69,659 |
| Most-Visited Countries by the British | 0 | - | 4.64 | 68,427 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,892 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,167 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,629 |
| Scotland Trivia | 0 | - | 4.58 | 57,534 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,879 |
| National Founders | 0 | - | 4.40 | 83,772 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,347 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,493 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,908 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,601 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,765 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,067 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,381 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,998 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,728 |
| Countries that Beat Germany | 0 | - | 4.95 | 106,021 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,860 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,353 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,391 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,584 |
| Ireland Country Quiz | 0 | - | 4.69 | 134,326 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,549 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,257 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,670 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,832 |
| Roman Names for Places | 0 | - | 4.62 | 58,135 |
| Countries Closest to Iceland | 0 | - | 4.89 | 73,307 |
| Modern Day Countries of the Portuguese Empire on a Map | 0 | - | 4.56 | 51,562 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,073 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,100 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,741 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,292 |
| Countries that Beat the United Kingdom | 0 | - | 4.53 | 63,508 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 63,997 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,721 |
| British History A-Z #1 | 0 | - | 4.45 | 46,362 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,541 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,551 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,419 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 399,855 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,296 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,587 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,706 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,600 |
| The John Adams Presidency | 0 | - | 4.12 | 8,724 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,722 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,824 |
| The American Revolution | 0 | - | 4.52 | 54,193 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,390 |
| Random European Flag to Country | 0 | - | 4.89 | 181,807 |
| History of Russia Quiz | 0 | - | 4.49 | 31,867 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,605 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,875 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,778 |
| All Countries that Once Bordered Germany | 0 | - | 4.34 | 74,818 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,105 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,194 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,469 |
| Ancient Greek Words | 0 | - | 4.93 | 111,247 |
| History of Italy | 0 | - | 4.55 | 31,925 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,438 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,158 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,600 |
| Countries Once Held by Sweden | 0 | - | 4.17 | 34,752 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,623 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,145 |
| UK Baby Girl Names by Decade | 0 | - | 4.36 | 160,056 |
| UK Baby Boy Names by Decade | 0 | - | 4.37 | 131,861 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,773 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,539 |
| Name a James Bond Movie A-Z | 0 | - | 4.60 | 10,348 |
| Shakespearean Characters | 0 | - | 4.38 | 37,599 |
| English Royal Consorts | 0 | - | 4.37 | 37,300 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 140,354 |
| 2025–2026 English Premier League Teams | 0 | - | 4.86 | 856,675 |
| The Wales Quiz | 0 | - | 4.47 | 29,109 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,903 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,928 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,692 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,496 |
| The George Washington Presidency | 0 | - | 4.03 | 14,525 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,912 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,288 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,648 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,801 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,127 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,696 |
| Europe Map Quiz | 0 | - | 5.00 | 4,751,754 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,893 |
| Random European Countries on a Map | 0 | - | 4.97 | 282,929 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 317,266 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,714 |
