| Prime Ministers of the UK | 0 | - | 4.95 | 440,342 |
| Prime Ministers of Australia | 0 | - | 4.50 | 32,027 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,669 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,709 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,861 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,569 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,888 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,217 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,070 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,710,451 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,075 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,983 |
| Country by Photo of its Leader | 0 | - | 4.72 | 124,298 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,323 |
| Name that Greek Letter | 0 | - | 4.93 | 324,254 |
| Monty Python Quotes | 0 | - | 4.89 | 42,516 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,918 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,871 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,609 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,305 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,504 |
| Countries of the Popes | 0 | - | 4.79 | 128,381 |
| National Founders | 0 | - | 4.40 | 83,896 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 427,206 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,830 |
| Ancient Greek Words | 0 | - | 4.93 | 111,980 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,042 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,175 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,103 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 382,431 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 192,698 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,509 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,720 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,786 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,915 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,843 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,232 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,684 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,297 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,345 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,733 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,710 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,793 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,957 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,810 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,707 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,169 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,382 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,187 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,316 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 80,886 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,564 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,506 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,312 |
| UK Immigration by Country | 0 | - | 4.94 | 141,213 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,279 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,295 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,246 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,544 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,744 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,131 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,799 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,849 |
| Political Movements by Country | 0 | - | 4.46 | 72,639 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,047 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,110 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,559 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,832 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,300 |
| Every European Country Shape | 0 | - | 4.96 | 202,302 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,624 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,600 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,453 |
| Ireland Country Quiz | 0 | - | 4.69 | 134,724 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,441 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,828 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,228 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,237 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,434 |
| Name the English Monarchs | 0 | - | 4.91 | 504,256 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 62,314 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 402,971 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,473 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,730 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,974 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,764 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 94,048 |
| Presidential Middle Names | 0 | - | 4.41 | 60,452 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,477 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,682 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,497 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,447 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,574 |
| Random European Flag to Country | 0 | - | 4.89 | 183,056 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,703 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,561 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,144 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,032 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,401 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,035 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,156 |
| Germany A-Z | 0 | - | 4.56 | 62,713 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,285 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,238 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,851 |
| The Trojan War | 0 | - | 4.83 | 39,815 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,582 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,525 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,319 |
| Italy A-Z | 0 | - | 4.49 | 58,478 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,642 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,670 |
| Roman Emperors | 0 | - | 4.95 | 120,454 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,775 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,009 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,773 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 64,426 |
| Middle Earth Geography | 0 | - | 4.56 | 39,884 |
| Lord of the Rings Trivia | 0 | - | 4.53 | 81,608 |
| Members of the Fellowship of the Ring | 0 | - | 4.74 | 45,895 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,755 |
| British History A-Z #1 | 0 | - | 4.45 | 46,596 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,863 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,525 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 142,150 |
| Scotland A-Z | 0 | - | 4.73 | 41,351 |
| Pope Facts | 0 | - | 4.39 | 31,306 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,934 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,996 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,311 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,234 |
| Hindu Countries | 0 | - | 4.86 | 50,331 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,416 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 305,547 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,067 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,243 |
| The American Revolution | 0 | - | 4.52 | 54,296 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 221,533 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 134,701 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,808 |
| Random European Countries on a Map | 0 | - | 4.97 | 284,377 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 319,467 |
| History of Russia Quiz | 0 | - | 4.47 | 31,960 |
| Flags of Countries That Border France | 0 | - | 4.88 | 123,439 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 97,539 |
| All Countries that Once Bordered Germany | 0 | - | 4.34 | 75,035 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,082 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,703 |
| History of Italy | 0 | - | 4.55 | 32,066 |
| Italy by Picture | 0 | - | 4.41 | 30,996 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,240 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,733 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,311 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,450 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,976 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,480 |
| Name a James Bond Movie A-Z | 0 | - | 4.60 | 10,428 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 37,997 |
| Animals in British History | 0 | - | 4.43 | 26,045 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,790 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 862,391 |
| Premier League Relegated Teams | 0 | - | 4.81 | 127,012 |
| The Vietnam War | 0 | - | 4.44 | 35,585 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,569 |
| History of South Africa | 0 | - | 4.60 | 17,724 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,182 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,541 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.22 | 10,876 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,552 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,290 |
| First Ladies of the United States | 0 | - | 4.28 | 85,767 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,986 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,253 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,293 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,245 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 24,008 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,863 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,934 |
| Europe Map Quiz | 0 | - | 5.00 | 4,773,158 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,403 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,069 |
| Most Forested European Countries | 0 | - | 4.80 | 75,480 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,666 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,505 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 217,576 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,825 |
| Arms Exports - Russia | 0 | - | 4.49 | 25,157 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 94,179 |
| History of Austria | 0 | - | 4.70 | 17,916 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,248 |
| Geography of the French Empire | 0 | - | 4.45 | 27,161 |
| The French Revolution | 0 | - | 4.47 | 24,072 |
| History of France | 0 | - | 4.61 | 57,313 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,405 |
| German History A-Z | 0 | - | 4.49 | 24,669 |
| Mythology A-Z | 0 | - | 4.31 | 37,301 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,853 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,845 |
| Countries that Beat Ireland | 0 | - | 4.40 | 34,373 |
| Roman History Vocabulary | 0 | - | 4.41 | 57,657 |
