| Prime Ministers of the UK | 0 | - | 4.96 | 434,412 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,494 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,651,711 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,659 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,729 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,464 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,393 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,719 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,183 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,068 |
| Countries of the Popes | 0 | - | 4.79 | 127,143 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,203 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,547 |
| Name that Greek Letter | 0 | - | 4.94 | 321,526 |
| Monty Python Quotes | 0 | - | 4.88 | 42,314 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,568 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,010 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,175 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,301 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 423,485 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,414 |
| Ancient Greek Words | 0 | - | 4.92 | 110,626 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,333 |
| Paramount Leaders of China | 0 | - | 4.36 | 10,996 |
| U.S. Vice Presidents | 0 | - | 4.41 | 134,855 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 107,900 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,422 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 92,962 |
| Presidential Middle Names | 0 | - | 4.41 | 59,670 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,456 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,701 |
| Assassinated U.S. Presidents | 0 | - | 4.61 | 93,778 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,153 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,722 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,641 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,262 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,643 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,288 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,770 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,623 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,398 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,282 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,332 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,592 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,030 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.91 | 37,078 |
| Pope Facts | 0 | - | 4.39 | 31,026 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,794 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,826 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,263 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,505 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,723 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,170 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,858 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,356 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,319 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,052 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 55,964 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,205 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,272 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,503 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 143,095 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 95,920 |
| UK Immigration by Country | 0 | - | 4.94 | 139,539 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,066 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,019 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,142 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,532 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,154 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,369 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,161 |
| First Ladies of the United States | 0 | - | 4.28 | 85,223 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,107 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,231 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 15,994 |
| Add a Letter - Make a U.S. President | 0 | - | 4.61 | 23,824 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,191 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,678 |
| Every European Country Shape | 0 | - | 4.96 | 200,031 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,119 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,099 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,075 |
| Ireland Country Quiz | 0 | - | 4.69 | 133,850 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,745 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,013 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,402 |
| World Capitals Closest to Madrid | 0 | - | 4.50 | 42,352 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,202 |
| Name the English Monarchs | 0 | - | 4.92 | 497,670 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 61,492 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 396,936 |
| National Founders | 0 | - | 4.40 | 83,637 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 60,926 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,810 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,635 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,860 |
| Random European Flag to Country | 0 | - | 4.89 | 180,829 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,424 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,469 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,789 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,569 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,114 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,953 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,430 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,663 |
| The Trojan War | 0 | - | 4.83 | 39,415 |
| Famous Ancient Romans | 0 | - | 4.69 | 85,004 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,196 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,475 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,229 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,021 |
| Roman Emperors | 0 | - | 4.95 | 118,388 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,930 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,807 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,317 |
| Spain by Picture | 0 | - | 4.21 | 14,655 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,803 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 63,373 |
| Do You Even Know Anything About Shakespeare? | 0 | - | 4.57 | 34,191 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,149 |
| British History A-Z #1 | 0 | - | 4.45 | 45,784 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,299 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 51,924 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 139,016 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,812 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,660 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,918 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,457 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 303,296 |
| The George Washington Presidency | 0 | - | 4.03 | 14,472 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,655 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,487 |
| The John Adams Presidency | 0 | - | 4.12 | 8,675 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,865 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,679 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,204 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,606 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,366 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,768 |
| The American Revolution | 0 | - | 4.52 | 54,045 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,316 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,386 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,188 |
| Random European Countries on a Map | 0 | - | 4.97 | 281,854 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 87,992 |
| History of Russia Quiz | 0 | - | 4.49 | 31,783 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,101 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,329 |
| All Countries that Once Bordered Germany | 0 | - | 4.33 | 74,574 |
| Countries of the German Empire | 0 | - | 4.51 | 37,648 |
| Olympian Gods Quiz | 0 | - | 4.96 | 495,556 |
| History of Italy | 0 | - | 4.55 | 31,806 |
| Italy by Picture | 0 | - | 4.41 | 30,721 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,472 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,972 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,373 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,309 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,848 |
| Name a James Bond Movie A-Z | 0 | - | 4.60 | 10,263 |
| Shakespearean Characters | 0 | - | 4.38 | 37,501 |
| Animals in British History | 0 | - | 4.44 | 25,865 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,592 |
| 2025–2026 English Premier League Teams | 0 | - | 4.86 | 850,922 |
| 10 Plagues of Egypt | 0 | - | 4.41 | 49,484 |
| History of India | 0 | - | 4.61 | 21,272 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,431 |
| History of South Africa | 0 | - | 4.60 | 17,598 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,874 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,668 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 128,652 |
| Europe Map Quiz | 0 | - | 5.00 | 4,729,518 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,734 |
| Most Forested European Countries | 0 | - | 4.80 | 74,887 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,528 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,091 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 315,581 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,268 |
| Arms Exports - Russia | 0 | - | 4.48 | 24,759 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,514 |
| History of Austria | 0 | - | 4.70 | 17,742 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,859 |
| Geography of the French Empire | 0 | - | 4.48 | 26,920 |
| The French Revolution | 0 | - | 4.46 | 23,769 |
| History of France | 0 | - | 4.59 | 55,958 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,379 |
| German History A-Z | 0 | - | 4.49 | 24,203 |
| Figures from Greek Mythology | 0 | - | 4.91 | 184,821 |
| Countries that Beat Ireland | 0 | - | 4.39 | 34,081 |
| Roman History Vocabulary | 0 | - | 4.40 | 57,450 |
| The Life of Julius Caesar | 0 | - | 4.39 | 38,947 |
| Roman History by Picture | 0 | - | 4.46 | 26,336 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,652 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.26 | 101,412 |
| The Vikings! | 0 | - | 4.45 | 28,237 |
| The Portuguese Empire | 0 | - | 4.54 | 11,984 |
| Arthurian Legend | 0 | - | 4.33 | 25,049 |
| Biggest British Empire Countries | 0 | - | 4.73 | 87,264 |
| UK Rivers Map Quiz | 0 | - | 4.54 | 30,254 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,025 |
| British Places A-Z | 0 | - | 4.29 | 79,587 |
