| Prime Ministers of the UK | 0 | - | 4.95 | 441,726 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,917 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,720,980 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,060 |
| Name that Greek Letter | 0 | - | 4.93 | 324,773 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,891 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,257 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,946 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,856 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,165 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 162,161 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,452 |
| Ancient Greek Words | 0 | - | 4.93 | 112,311 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,230 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,801 |
| Countries of the Popes | 0 | - | 4.79 | 128,624 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,091 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,560 |
| Country by Photo of its Leader | 0 | - | 4.70 | 124,535 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,844 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,898 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 145,438 |
| Monty Python Quotes | 0 | - | 4.89 | 42,589 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,131 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,826 |
| German History A-Z | 0 | - | 4.49 | 24,875 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,552 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.32 | 62,503 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,261 |
| U.S. Presidents by Event | 0 | - | 4.58 | 35,188 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,526 |
| Presidential Middle Names | 0 | - | 4.41 | 60,659 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,304 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,598 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,859 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,600 |
| Name a Valid U.S. President #1 | 0 | - | 4.90 | 193,520 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,786 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,175 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,172 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,189 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,258 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,450 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,916 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,379 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,805 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,737 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.54 | 49,596 |
| Roman History Vocabulary | 0 | - | 4.41 | 57,701 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,309 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,445 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 38,141 |
| British History A-Z #1 | 0 | - | 4.45 | 47,169 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 61,029 |
| Pope Facts | 0 | - | 4.39 | 31,358 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,122 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,739 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,681 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,171 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,168 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 84,958 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,594 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,708 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,459 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 81,072 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,623 |
| All Countries that Once Bordered Germany | 0 | - | 4.34 | 75,146 |
| Countries of the German Empire | 0 | - | 4.51 | 38,134 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,114 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,775 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,988 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,917 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,062 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,585 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,855 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,347 |
| U.S. Presidential Running Mates | 0 | - | 4.41 | 28,744 |
| First Ladies of the United States | 0 | - | 4.28 | 85,905 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,293 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,412 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,336 |
| Add a Letter - Make a U.S. President | 0 | - | 4.58 | 24,076 |
| Win the 1828 U.S. Presidential Election | 0 | - | 4.30 | 55,649 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,630 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,927 |
| Every European Country Shape | 0 | - | 4.96 | 202,738 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,829 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,447 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,210 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,960 |
| Ireland Country Quiz | 0 | - | 4.69 | 135,136 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,158 |
| Roman History by Picture | 0 | - | 4.46 | 26,562 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,554 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,681 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,293 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,301 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,774 |
| UK Immigration by Country | 0 | - | 4.94 | 141,538 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,779 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,720 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,262 |
| Name the English Monarchs | 0 | - | 4.91 | 505,735 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,964 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 97,833 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,382 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,005 |
| National Founders | 0 | - | 4.40 | 83,942 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,924 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.42 | 24,047 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,878 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,713 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,998 |
| Random European Flag to Country | 0 | - | 4.90 | 183,961 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 166,326 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,519 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,319 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,624 |
| Germany by Picture | 0 | - | 4.39 | 29,837 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,484 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,254 |
| The Trojan War | 0 | - | 4.83 | 39,945 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,777 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,142 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,522 |
| Roman Emperors | 0 | - | 4.95 | 120,999 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,410 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,028 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,162 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,988 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 64,644 |
| Do You Even Know Anything About Shakespeare? | 0 | - | 4.56 | 34,469 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 238,118 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,972 |
| British History A-Z #2 | 0 | - | 4.24 | 11,491 |
| The Reign of Queen Victoria | 0 | - | 4.34 | 23,533 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,716 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 404,127 |
| Top 4 in English Football, 1888–2026 | 0 | - | 4.92 | 142,961 |
| 2026–2027 English Premier League Teams | 0 | - | 4.84 | 869,542 |
| Prime Ministers of Israel | 0 | - | 3.97 | 18,049 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,459 |
| Flags of WW1 | 0 | - | 4.60 | 38,630 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,381 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 306,026 |
| The George Washington Presidency | 0 | - | 4.03 | 14,595 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,769 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,742 |
| The John Adams Presidency | 0 | - | 4.12 | 8,778 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,976 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,771 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,371 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,749 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,499 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,913 |
| The American Revolution | 0 | - | 4.52 | 54,335 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,176 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,382 |
| Random European Countries on a Map | 0 | - | 4.97 | 284,813 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 320,205 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,593 |
| History of Russia Quiz | 0 | - | 4.47 | 31,993 |
| Arms Exports - Russia | 0 | - | 4.49 | 25,180 |
| Flags of Countries That Border France | 0 | - | 4.89 | 123,670 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 97,752 |
| History of Italy | 0 | - | 4.55 | 32,118 |
| Italy by Picture | 0 | - | 4.41 | 31,064 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,794 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,402 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,058 |
| UK Rivers Map Quiz | 0 | - | 4.54 | 30,560 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,687 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,529 |
| British Places A-Z | 0 | - | 4.29 | 80,057 |
| Name a James Bond Movie A-Z | 0 | - | 4.60 | 10,475 |
| Shakespearean Characters | 0 | - | 4.38 | 37,719 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,779 |
| Animals in British History | 0 | - | 4.43 | 26,079 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,841 |
| Premier League Relegated Teams | 0 | - | 4.81 | 127,592 |
| 10 Plagues of Egypt | 0 | - | 4.41 | 53,896 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,697 |
| History of South Africa | 0 | - | 4.60 | 17,748 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,133 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,854 |
| U.S. President Scramble | 0 | - | 4.40 | 117,382 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,315 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 48,061 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,565 |
| Europe Map Quiz | 0 | - | 5.00 | 4,782,745 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,027 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,151 |
| Most Forested European Countries | 0 | - | 4.80 | 75,620 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,693 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 217,895 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,164 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 94,357 |
| History of Austria | 0 | - | 4.70 | 17,963 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,327 |
| Geography of the French Empire | 0 | - | 4.45 | 27,202 |
