| Prime Ministers of the UK | 0 | - | 4.95 | 441,021 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,715,669 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,697 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,110 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,345 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,374 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,637 |
| Countries of the Popes | 0 | - | 4.79 | 128,495 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,761 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 64,540 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 237,937 |
| Country by Photo of its Leader | 0 | - | 4.70 | 124,414 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,796 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,638 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,896 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,818 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 427,728 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 382,925 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,123 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,415 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,849 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,762 |
| Ancient Greek Words | 0 | - | 4.93 | 112,147 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,705 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,112 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,506 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,098 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,984 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 94,333 |
| Presidential Middle Names | 0 | - | 4.41 | 60,555 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,542 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,760 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,120 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,553 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 193,142 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,680 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,989 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 84,365 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,377 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,524 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,302 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,317 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 80,977 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,299 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,532 |
| Pope Facts | 0 | - | 4.39 | 31,330 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,902 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,723 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,006 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,898 |
| Biggest British Empire Countries | 0 | - | 4.74 | 100,307 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,306 |
| Name the English Monarchs | 0 | - | 4.91 | 504,953 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 97,684 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,261 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,893 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,817 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,573 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,705 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,318 |
| First Ladies of the United States | 0 | - | 4.28 | 85,821 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 24,016 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,269 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,332 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,291 |
| Add a Letter - Make a U.S. President | 0 | - | 4.58 | 24,050 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,467 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,896 |
| Every European Country Shape | 0 | - | 4.96 | 202,489 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,645 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,664 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,779 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,598 |
| The Trojan War | 0 | - | 4.83 | 39,903 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,177 |
| Name that Greek Letter | 0 | - | 4.93 | 324,498 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,549 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,392 |
| Roman Emperors | 0 | - | 4.95 | 120,727 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.27 | 103,451 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,441 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,203 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,655 |
| Do You Even Know Anything About Shakespeare? | 0 | - | 4.56 | 34,447 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 62,400 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.42 | 51,877 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,388 |
| National Founders | 0 | - | 4.40 | 83,921 |
| U.S. Presidential Running Mates | 0 | - | 4.41 | 28,704 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,761 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,715 |
| The John Adams Presidency | 0 | - | 4.12 | 8,769 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,755 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,885 |
| The American Revolution | 0 | - | 4.52 | 54,314 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,973 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,894 |
| Flags of Countries That Border France | 0 | - | 4.89 | 123,557 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 97,645 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,530 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,669 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,927 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,860 |
| Roman History Vocabulary | 0 | - | 4.41 | 57,679 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,129 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,349 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,545 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,317 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,617 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,410 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,596 |
| 2026–2027 English Premier League Teams | 0 | - | 4.85 | 865,710 |
| Premier League Relegated Teams | 0 | - | 4.81 | 127,333 |
| Prime Ministers of Israel | 0 | - | 3.97 | 18,031 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,372 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,371 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,125 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,843 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 305,806 |
| The George Washington Presidency | 0 | - | 4.03 | 14,580 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,957 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,346 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,732 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,383 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 221,827 |
| Category Elimination - U.S. States #2 | 0 | - | 4.83 | 135,002 |
| Europe Map Quiz | 0 | - | 5.00 | 4,777,670 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,382 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,108 |
| Random European Countries on a Map | 0 | - | 4.97 | 284,558 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 319,847 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,991 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,103 |
| History of Russia Quiz | 0 | - | 4.47 | 31,977 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,469 |
| History of Italy | 0 | - | 4.55 | 32,098 |
| Roman History by Picture | 0 | - | 4.46 | 26,541 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 126,431 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,763 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,359 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,019 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,251 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,758 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 38,061 |
| 10 Plagues of Egypt | 0 | - | 4.41 | 53,884 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,449 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,641 |
| Communist Countries in History | 0 | - | 4.63 | 497,195 |
| George Washington... or George W. Bush? | 0 | - | 4.16 | 12,284 |
| History of South Africa | 0 | - | 4.60 | 17,732 |
| Oceania Map Quiz | 0 | - | 4.98 | 657,187 |
| Australian Capitals | 0 | - | 4.92 | 62,791 |
| History of Mexico | 0 | - | 4.58 | 15,347 |
| United States Map Quiz | 0 | - | 4.98 | 4,166,400 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,082 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 631,905 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,570 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,241 |
| People in Pictures with Ronald Reagan | 0 | - | 4.35 | 40,857 |
| U.S. President Scramble | 0 | - | 4.40 | 117,289 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,281 |
| U.S. Presidents by Picture - Multiple Choice | 0 | - | 4.50 | 28,957 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 48,014 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,487 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,493 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,889 |
| Official European Union Languages | 0 | - | 4.97 | 239,285 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,336 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,906 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 217,741 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,528 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 94,267 |
| History of Austria | 0 | - | 4.70 | 17,939 |
| Geography of the French Empire | 0 | - | 4.45 | 27,187 |
| The French Revolution | 0 | - | 4.47 | 24,098 |
| History of France | 0 | - | 4.61 | 57,414 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,532 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 145,224 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,157 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,984 |
| Mythology A-Z | 0 | - | 4.31 | 37,335 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,165 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,526 |
| Byzantine History | 0 | - | 4.91 | 28,969 |
| Byzantine Emperors | 0 | - | 4.92 | 14,464 |
| History of The Netherlands | 0 | - | 4.46 | 17,512 |
| The Vikings! | 0 | - | 4.46 | 28,386 |
| The Portuguese Empire | 0 | - | 4.58 | 12,090 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,537 |
| Arthurian Legend | 0 | - | 4.33 | 25,141 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,429 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,051 |
| Geography of the British Empire | 0 | - | 4.48 | 39,800 |
| People Buried at Westminster Abbey | 0 | - | 4.67 | 14,285 |
| Medieval English History | 0 | - | 4.53 | 43,610 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,641 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,450,706 |
| Asia Map Quiz | 0 | - | 4.99 | 922,070 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,154 |
| History of Iran | 0 | - | 4.66 | 16,395 |
