| Prime Ministers of the UK | 0 | - | 4.95 | 438,427 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,907 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,471 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,411 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,175 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,764 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,268 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,229 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 94,920 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,449 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,693,458 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,615 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,773 |
| Country by Photo of its Leader | 0 | - | 4.72 | 123,979 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,800 |
| Name that Greek Letter | 0 | - | 4.93 | 323,284 |
| Monty Python Quotes | 0 | - | 4.88 | 42,451 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,779 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,787 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,772 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,039 |
| Countries of the Popes | 0 | - | 4.79 | 128,016 |
| National Founders | 0 | - | 4.40 | 83,815 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 426,215 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,370 |
| Ancient Greek Words | 0 | - | 4.93 | 111,487 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,811 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,753 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,062 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 381,346 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 191,595 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,219 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,989 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,227 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,417 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,509 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,939 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,900 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,075 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,264 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,641 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,669 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,754 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,540 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,506 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,317 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,839 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,073 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 80,434 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,504 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,868 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,760 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,111 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,679 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,465 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,431 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,873 |
| UK Immigration by Country | 0 | - | 4.94 | 140,791 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,641 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,371 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,208 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,139 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 133,711 |
| Political Movements by Country | 0 | - | 4.46 | 72,503 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,219 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,954 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,067 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,518 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,776 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,671 |
| Every European Country Shape | 0 | - | 4.96 | 201,476 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,483 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,455 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,938 |
| Ireland Country Quiz | 0 | - | 4.69 | 134,475 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,294 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,616 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,051 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,144 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,024 |
| Name the English Monarchs | 0 | - | 4.91 | 502,115 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 62,014 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 400,872 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,949 |
| Hindu Countries | 0 | - | 4.86 | 50,081 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,517 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,618 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,371 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,703 |
| Presidential Middle Names | 0 | - | 4.41 | 60,177 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,266 |
| Assassinated U.S. Presidents | 0 | - | 4.62 | 94,536 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,394 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,891 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,051 |
| Random European Flag to Country | 0 | - | 4.89 | 182,204 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,294 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,493 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,647 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,610 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,130 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,934 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,218 |
| Germany A-Z | 0 | - | 4.56 | 62,572 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,526 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,978 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,783 |
| The Trojan War | 0 | - | 4.83 | 39,684 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,435 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,415 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,707 |
| Italy A-Z | 0 | - | 4.49 | 58,234 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,823 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,480 |
| Roman Emperors | 0 | - | 4.95 | 119,840 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,502 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,760 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,470 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 64,170 |
| Middle Earth Geography | 0 | - | 4.56 | 39,790 |
| Lord of the Rings Trivia | 0 | - | 4.53 | 81,428 |
| Members of the Fellowship of the Ring | 0 | - | 4.74 | 45,814 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,291 |
| British History A-Z #1 | 0 | - | 4.45 | 46,449 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,626 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,325 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 140,873 |
| Scotland A-Z | 0 | - | 4.73 | 41,260 |
| Pope Facts | 0 | - | 4.39 | 31,224 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,686 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,933 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,130 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,401 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,281 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,804 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,964 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,944 |
| The American Revolution | 0 | - | 4.52 | 54,231 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,602 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 134,045 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,201 |
| Random European Countries on a Map | 0 | - | 4.97 | 283,278 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 317,837 |
| History of Russia Quiz | 0 | - | 4.47 | 31,904 |
| Flags of Countries That Border France | 0 | - | 4.88 | 122,809 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,940 |
| All Countries that Once Bordered Germany | 0 | - | 4.34 | 74,919 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,362 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,584 |
| History of Italy | 0 | - | 4.55 | 31,959 |
| Italy by Picture | 0 | - | 4.41 | 30,914 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,746 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,641 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,201 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,197 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,833 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,178 |
| Name a James Bond Movie A-Z | 0 | - | 4.60 | 10,380 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 37,781 |
| Animals in British History | 0 | - | 4.44 | 25,993 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,724 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 858,640 |
| The Vietnam War | 0 | - | 4.44 | 35,508 |
| History of India | 0 | - | 4.62 | 21,411 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,042 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,863 |
| History of South Africa | 0 | - | 4.60 | 17,678 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,144 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,511 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.20 | 10,856 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,174 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,248 |
| First Ladies of the United States | 0 | - | 4.28 | 85,598 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,946 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,216 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 77,018 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,179 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,950 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,814 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,714 |
| Europe Map Quiz | 0 | - | 5.00 | 4,759,294 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,328 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,953 |
| Most Forested European Countries | 0 | - | 4.80 | 75,284 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,620 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,413 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 217,074 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,764 |
| Arms Exports - Russia | 0 | - | 4.48 | 25,130 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,976 |
| History of Austria | 0 | - | 4.70 | 17,852 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,133 |
| Geography of the French Empire | 0 | - | 4.45 | 27,046 |
| The French Revolution | 0 | - | 4.46 | 23,922 |
| History of France | 0 | - | 4.59 | 56,925 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,266 |
| German History A-Z | 0 | - | 4.49 | 24,594 |
| Mythology A-Z | 0 | - | 4.31 | 37,200 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,717 |
| Countries that Beat Ireland | 0 | - | 4.40 | 34,277 |
