| Prime Ministers of the UK | 0 | - | 4.95 | 441,879 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,722,359 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,176 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,475 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,612 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,831 |
| Countries of the Popes | 0 | - | 4.79 | 128,655 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,560 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,750 |
| Name the English Monarchs | 0 | - | 4.91 | 505,914 |
| Country by Photo of its Leader | 0 | - | 4.70 | 124,561 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,875 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,561 |
| The Trojan War | 0 | - | 4.83 | 39,951 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,258 |
| Name that Greek Letter | 0 | - | 4.93 | 324,826 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,816 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,545 |
| Roman Emperors | 0 | - | 4.95 | 121,065 |
| Monty Python Quotes | 0 | - | 4.89 | 42,590 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 238,167 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,948 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,323 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,958 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,881 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,245 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 162,196 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,261 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,124 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,310 |
| U.S. Presidents by Event | 0 | - | 4.58 | 35,235 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,554 |
| Presidential Middle Names | 0 | - | 4.41 | 60,671 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,393 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,615 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,871 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,611 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,223 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,393 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,821 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,449 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,470 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,194 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 38,160 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,742 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,717 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,176 |
| Name a Valid U.S. President #1 | 0 | - | 4.90 | 193,599 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,808 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,230 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,314 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,208 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,078 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,637 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,728 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,482 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,471 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 81,096 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,629 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,920 |
| Countries Bordering France | 0 | - | 4.83 | 404,643 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,607 |
| Italy by Picture | 0 | - | 4.41 | 31,067 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 126,619 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,855 |
| Animals in British History | 0 | - | 4.43 | 26,083 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,999 |
| Pope Facts | 0 | - | 4.39 | 31,370 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,071 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,900 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,354 |
| U.S. Presidential Running Mates | 0 | - | 4.41 | 28,752 |
| First Ladies of the United States | 0 | - | 4.28 | 85,914 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,302 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,437 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,346 |
| Add a Letter - Make a U.S. President | 0 | - | 4.58 | 24,082 |
| Win the 1828 U.S. Presidential Election | 0 | - | 4.31 | 57,218 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,667 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,932 |
| Every European Country Shape | 0 | - | 4.96 | 202,800 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,723 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,031 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,534 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,238 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,039 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,891 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,110 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,429 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,381 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 145,502 |
| Counties of Ireland | 0 | - | 4.92 | 197,060 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,954 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,206 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,609 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,229 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,415 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,577 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,005 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,728 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,969 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,323 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,806 |
| UK Immigration by Country | 0 | - | 4.94 | 141,585 |
| Arthurian Legend | 0 | - | 4.33 | 25,166 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,837 |
| Top 100 UK Baby Boys' Names in 1850 | 0 | - | 4.42 | 70,242 |
| Most-Visited Countries by the British | 0 | - | 4.64 | 68,980 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,187 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,016 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,245 |
| Scotland Trivia | 0 | - | 4.58 | 57,743 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 97,874 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,420 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,029 |
| National Founders | 0 | - | 4.40 | 83,951 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,949 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,590 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.42 | 24,055 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,930 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,052 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 166,357 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,347 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,645 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,983 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,216 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,506 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.54 | 49,607 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,232 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,815 |
| Ireland Country Quiz | 0 | - | 4.69 | 135,164 |
| Biggest Cities in Italy | 0 | - | 4.77 | 242,211 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,097 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,226 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,182 |
| Roman Names for Places | 0 | - | 4.62 | 58,659 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,062 |
| Modern Day Countries of the Portuguese Empire on a Map | 0 | - | 4.56 | 52,100 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,799 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,299 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,288 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,010 |
| Countries that Beat the United Kingdom | 0 | - | 4.53 | 63,911 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 64,670 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,936 |
| British History A-Z #1 | 0 | - | 4.45 | 47,190 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,914 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 61,040 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,993 |
| 2026–2027 Football League Teams | 0 | - | 4.94 | 405,288 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,771 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,743 |
| The John Adams Presidency | 0 | - | 4.12 | 8,783 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,772 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,916 |
| The American Revolution | 0 | - | 4.52 | 54,344 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,175 |
| Random European Flag to Country | 0 | - | 4.90 | 184,031 |
| History of Russia Quiz | 0 | - | 4.47 | 31,996 |
| Flags of Countries That Border France | 0 | - | 4.89 | 123,704 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,112 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 97,781 |
| All Countries that Once Bordered Germany | 0 | - | 4.34 | 75,160 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,227 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,379 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,567 |
| Ancient Greek Words | 0 | - | 4.93 | 112,351 |
| History of Italy | 0 | - | 4.55 | 32,130 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,200 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,252 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,801 |
| Countries Once Held by Sweden | 0 | - | 4.18 | 34,846 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,179 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,408 |
| UK Baby Girl Names by Decade | 0 | - | 4.38 | 161,620 |
| UK Baby Boy Names by Decade | 0 | - | 4.37 | 133,021 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,068 |
| Satellite Images - The United Kingdom | 0 | - | 4.41 | 28,165 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,581 |
| Name a James Bond Movie A-Z | 0 | - | 4.60 | 10,480 |
| Shakespearean Characters | 0 | - | 4.38 | 37,724 |
| English Royal Consorts | 0 | - | 4.38 | 37,504 |
| Top 4 in English Football, 1888–2026 | 0 | - | 4.92 | 143,080 |
| 2026–2027 English Premier League Teams | 0 | - | 4.84 | 870,043 |
| The Wales Quiz | 0 | - | 4.47 | 29,259 |
| Prime Ministers of Israel | 0 | - | 3.97 | 18,054 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,474 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,718 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 306,079 |
| The George Washington Presidency | 0 | - | 4.03 | 14,600 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,978 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,371 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,751 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,529 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,272 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,441 |
| Europe Map Quiz | 0 | - | 5.00 | 4,784,143 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,165 |
| Random European Countries on a Map | 0 | - | 4.97 | 284,900 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 320,279 |
