| Prime Ministers of the UK | 0 | - | 4.95 | 443,277 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 72,147 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,731,881 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,136 |
| Name that Greek Letter | 0 | - | 4.93 | 325,347 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,942 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,991 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 54,036 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 81,099 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,247 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 162,569 |
| Ancient Greek Words | 0 | - | 4.93 | 112,698 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,460 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,681 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,628 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,074 |
| Name the Popes Quiz | 0 | - | 4.47 | 139,106 |
| Countries of the Popes | 0 | - | 4.78 | 128,917 |
| Canadian Prime Ministers | 0 | - | 4.64 | 58,025 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,719 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 146,109 |
| Monty Python Quotes | 0 | - | 4.89 | 42,629 |
| Country by Photo of its Leader | 0 | - | 4.70 | 124,764 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,423 |
| German History A-Z | 0 | - | 4.49 | 24,953 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,594 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,932 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,940 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.89 | 114,545 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.54 | 49,693 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,529 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,631 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 38,315 |
| British History A-Z #1 | 0 | - | 4.45 | 47,348 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.32 | 62,682 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 61,166 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,146 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 241,001 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,681 |
| U.S. Presidents by Event | 0 | - | 4.58 | 35,489 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,775 |
| Presidential Middle Names | 0 | - | 4.42 | 60,816 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,756 |
| Assassinated U.S. Presidents | 0 | - | 4.62 | 94,947 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,262 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,661 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 194,061 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,975 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,789 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,707 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,759 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,590 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 86,131 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 66,041 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 72,046 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,748 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,717 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 81,243 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,697 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.46 | 26,971 |
| All Countries that Once Bordered Germany | 0 | - | 4.33 | 75,267 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,517 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,857 |
| Roman History Vocabulary | 0 | - | 4.41 | 57,744 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,894 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,323 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 29,101 |
| Pope Facts | 0 | - | 4.39 | 31,430 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,770 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,178 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 201,012 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,262 |
| Countries of the German Empire | 0 | - | 4.51 | 38,314 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,198 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 117,146 |
| UK Immigration by Country | 0 | - | 4.94 | 141,921 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 141,303 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,284 |
| Name the English Monarchs | 0 | - | 4.91 | 507,500 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 98,174 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,731 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,238 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 62,120 |
| U.S. Bill of Rights | 0 | - | 4.53 | 33,076 |
| U.S. Vice Presidents | 0 | - | 4.39 | 137,204 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,383 |
| U.S. Presidential Running Mates | 0 | - | 4.41 | 28,802 |
| First Ladies of the United States | 0 | - | 4.28 | 86,032 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,339 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,545 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,389 |
| Add a Letter - Make a U.S. President | 0 | - | 4.58 | 24,124 |
| Win the 1828 U.S. Presidential Election | 0 | - | 4.32 | 59,669 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 192,041 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,962 |
| Every European Country Shape | 0 | - | 4.96 | 203,299 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 97,430 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,833 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,451 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,437 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,638 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 166,661 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 105,019 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,622 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,824 |
| Germany by Picture | 0 | - | 4.39 | 29,878 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,676 |
| The Trojan War | 0 | - | 4.83 | 40,094 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,278 |
| Ireland Country Quiz | 0 | - | 4.70 | 135,341 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,708 |
| Roman Emperors | 0 | - | 4.95 | 121,466 |
| Roman History by Picture | 0 | - | 4.46 | 26,617 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,822 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,314 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,335 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 87,041 |
| Countries that Visit the UK the Most | 0 | - | 4.88 | 76,034 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,215 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 64,905 |
| Do You Even Know Anything About Shakespeare? | 0 | - | 4.56 | 34,530 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,641 |
| British History Quiz for Dummies | 0 | - | 4.70 | 79,169 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 36,033 |
| 2026–2027 Football League Teams | 0 | - | 4.94 | 408,213 |
| National Founders | 0 | - | 4.40 | 84,003 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,789 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,778 |
| The John Adams Presidency | 0 | - | 4.12 | 8,799 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,788 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,943 |
| The American Revolution | 0 | - | 4.52 | 54,394 |
| Random European Flag to Country | 0 | - | 4.90 | 184,509 |
| Flags of Countries That Border France | 0 | - | 4.89 | 123,941 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 98,000 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,570 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,739 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,525 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,312 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,908 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,207 |
| British History A-Z #2 | 0 | - | 4.28 | 12,034 |
| The Reign of Queen Victoria | 0 | - | 4.34 | 23,572 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,867 |
| Top 4 in English Football, 1888–2026 | 0 | - | 4.92 | 143,879 |
| 2026–2027 English Premier League Teams | 0 | - | 4.84 | 873,347 |
| Premier League Relegated Teams | 0 | - | 4.81 | 128,123 |
| Prime Ministers of Israel | 0 | - | 3.97 | 18,103 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,598 |
| Flags of WW1 | 0 | - | 4.60 | 38,785 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,167 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,879 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.38 | 24,092 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 306,443 |
| The George Washington Presidency | 0 | - | 4.03 | 14,622 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 17,004 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,398 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,777 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,674 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,799 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,874 |
| Europe Map Quiz | 0 | - | 5.00 | 4,794,157 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 533,137 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,261 |
| Random European Countries on a Map | 0 | - | 4.97 | 285,402 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 320,939 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,908 |
| History of Russia Quiz | 0 | - | 4.47 | 32,030 |
| Arms Exports - Russia | 0 | - | 4.49 | 25,208 |
| Countries that Beat Ireland | 0 | - | 4.40 | 34,688 |
| History of Italy | 0 | - | 4.55 | 32,187 |
| Italy by Picture | 0 | - | 4.41 | 31,120 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 127,087 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,856 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,472 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,150 |
| UK Rivers Map Quiz | 0 | - | 4.54 | 30,606 |
| British Places A-Z | 0 | - | 4.29 | 80,155 |
| Name a James Bond Movie A-Z | 0 | - | 4.60 | 10,517 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 390,613 |
| Shakespearean Characters | 0 | - | 4.38 | 37,772 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,858 |
| Animals in British History | 0 | - | 4.43 | 26,121 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,519 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,925 |
| 10 Plagues of Egypt | 0 | - | 4.41 | 53,938 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,702 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,837 |
| Communist Countries in History | 0 | - | 4.63 | 498,836 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,534 |
| Australian Capitals | 0 | - | 4.92 | 62,864 |
| History of Mexico | 0 | - | 4.52 | 15,376 |
| United States Map Quiz | 0 | - | 4.98 | 4,173,908 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,203 |
| Win the U.S. Presidential Election | 0 | - | 4.79 | 637,545 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,625 |
| U.S. President Scramble | 0 | - | 4.40 | 117,578 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,372 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 48,117 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,741 |
