| Prime Ministers of the UK | 0 | - | 4.96 | 435,607 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,743 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,179 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,936 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,008 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,571 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,700 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,622 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,574 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,586 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,665,012 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,416 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,255 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,460 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 643,362 |
| Name that Greek Letter | 0 | - | 4.94 | 322,117 |
| Monty Python Quotes | 0 | - | 4.88 | 42,353 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,598 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,680 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,727 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,377 |
| Countries of the Popes | 0 | - | 4.79 | 127,426 |
| National Founders | 0 | - | 4.40 | 83,691 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 424,363 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,689 |
| Ancient Greek Words | 0 | - | 4.92 | 110,917 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,489 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,159 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,016 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,997 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 190,305 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,806 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,965 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,020 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,617 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,054 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,643 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,863 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,730 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,779 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,426 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,596 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,122 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,006 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,540 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,561 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,602 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,243 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,670 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,704 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,334 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,215 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,803 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,355 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,344 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,347 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,226 |
| UK Immigration by Country | 0 | - | 4.94 | 139,926 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,545 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,389 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,157 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,490 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 114,827 |
| Political Movements by Country | 0 | - | 4.46 | 72,335 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,302 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,794 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,916 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,394 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,683 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,528 |
| Every European Country Shape | 0 | - | 4.96 | 200,537 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,290 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,223 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,216 |
| Ireland Country Quiz | 0 | - | 4.69 | 134,050 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,067 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,202 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,863 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,062 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,493 |
| Name the English Monarchs | 0 | - | 4.92 | 499,067 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 61,655 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 398,200 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,514 |
| Hindu Countries | 0 | - | 4.86 | 49,697 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,080 |
| U.S. Vice Presidents | 0 | - | 4.41 | 135,342 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,116 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,722 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,171 |
| Presidential Middle Names | 0 | - | 4.41 | 59,813 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,860 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 93,977 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,226 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,031 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,236 |
| Random European Flag to Country | 0 | - | 4.89 | 181,260 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,701 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,376 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,956 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,024 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,727 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,774 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,885 |
| Germany A-Z | 0 | - | 4.56 | 62,396 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,451 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,598 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,711 |
| The Trojan War | 0 | - | 4.83 | 39,501 |
| Famous Ancient Romans | 0 | - | 4.69 | 85,097 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,271 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,883 |
| Italy A-Z | 0 | - | 4.49 | 57,876 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,787 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,172 |
| Roman Emperors | 0 | - | 4.95 | 118,813 |
| Countries Closest to Iceland | 0 | - | 4.89 | 73,009 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,441 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,973 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 63,721 |
| Middle Earth Geography | 0 | - | 4.56 | 39,582 |
| Lord of the Rings Trivia | 0 | - | 4.53 | 80,935 |
| Members of the Fellowship of the Ring | 0 | - | 4.74 | 45,590 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,633 |
| British History A-Z #1 | 0 | - | 4.45 | 46,206 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,418 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,072 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 139,598 |
| Scotland A-Z | 0 | - | 4.73 | 41,099 |
| Pope Facts | 0 | - | 4.39 | 31,092 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,842 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,772 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,079 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,053 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 303,795 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,798 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,554 |
| The American Revolution | 0 | - | 4.52 | 54,110 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 219,027 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,894 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,967 |
| Random European Countries on a Map | 0 | - | 4.97 | 282,348 |
| History of Russia Quiz | 0 | - | 4.49 | 31,819 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,322 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,514 |
| All Countries that Once Bordered Germany | 0 | - | 4.33 | 74,667 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,459 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,367 |
| History of Italy | 0 | - | 4.55 | 31,864 |
| Italy by Picture | 0 | - | 4.41 | 30,796 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,455 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,524 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,037 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,824 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,645 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,761 |
| Name a James Bond Movie A-Z | 0 | - | 4.60 | 10,299 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.91 | 37,258 |
| Animals in British History | 0 | - | 4.44 | 25,907 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,637 |
| 2025–2026 English Premier League Teams | 0 | - | 4.86 | 853,481 |
| The Vietnam War | 0 | - | 4.43 | 35,348 |
| History of India | 0 | - | 4.61 | 21,318 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,850 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,549 |
| History of South Africa | 0 | - | 4.60 | 17,625 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,090 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,472 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.20 | 10,824 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,181 |
| First Ladies of the United States | 0 | - | 4.28 | 85,318 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,839 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,134 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,508 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,040 |
| Add a Letter - Make a U.S. President | 0 | - | 4.61 | 23,854 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,715 |
| Europe Map Quiz | 0 | - | 5.00 | 4,739,035 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,198 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,807 |
| Most Forested European Countries | 0 | - | 4.80 | 75,013 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,549 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,228 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,402 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 316,271 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 210,320 |
| Arms Exports - Russia | 0 | - | 4.48 | 24,982 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,669 |
| History of Austria | 0 | - | 4.70 | 17,779 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,984 |
| Geography of the French Empire | 0 | - | 4.45 | 26,964 |
| The French Revolution | 0 | - | 4.46 | 23,832 |
| History of France | 0 | - | 4.59 | 56,383 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,409 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,021 |
| German History A-Z | 0 | - | 4.49 | 24,475 |
| Mythology A-Z | 0 | - | 4.31 | 37,058 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,451 |
| Countries that Beat Ireland | 0 | - | 4.40 | 34,135 |
| Roman History Vocabulary | 0 | - | 4.40 | 57,495 |
