| Prime Ministers of the UK | 0 | - | 4.96 | 423,645 |
| Canadian Prime Ministers Quiz | 0 | - | 4.63 | 55,582 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 69,217 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 52,951 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 77,663 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 193,644 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 92,962 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 112,967 |
| Prime Ministers of Australia | 0 | - | 4.49 | 30,987 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,549,196 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 145,830 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 70,699 |
| Country by Photo of its Leader | 0 | - | 4.79 | 121,269 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 625,825 |
| Largest Nordic Cities on a Map | 0 | - | 4.83 | 35,429 |
| Monty Python Quotes | 0 | - | 4.88 | 41,866 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 27,931 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.43 | 26,186 |
| Name that Greek Letter | 0 | - | 4.93 | 315,843 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 119,222 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,209 |
| Name the Popes Quiz | 0 | - | 4.47 | 134,496 |
| Countries of the Popes | 0 | - | 4.80 | 124,901 |
| National Founders | 0 | - | 4.39 | 83,169 |
| U.S. Presidents by Picture | 0 | - | 4.86 | 417,010 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 157,871 |
| Ancient Greek Words | 0 | - | 4.92 | 107,835 |
| Biggest Roman Empire Countries | 0 | - | 4.89 | 99,930 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 187,414 |
| Paramount Leaders of China | 0 | - | 4.35 | 10,772 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 374,297 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 185,008 |
| Play-Doh Presidents | 0 | - | 5.00 | 80,299 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.94 | 63,546 |
| Countries of Europe After World War II | 0 | - | 4.99 | 183,252 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 151,804 |
| Countries of the Soviet Union | 0 | - | 4.98 | 191,963 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 54,088 |
| UK Cities Map Quiz | 0 | - | 4.95 | 456,479 |
| The Dictator Files: Chairman Mao | 0 | - | 4.33 | 20,288 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 103,246 |
| African Countries with the Most Christians | 0 | - | 4.93 | 73,380 |
| African Countries with the Most Muslims | 0 | - | 4.81 | 98,822 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 117,807 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 234,907 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 71,492 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 145,679 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 72,711 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.94 | 60,284 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 67,683 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 54,027 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 79,385 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 78,882 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.35 | 47,708 |
| States of the German Confederation in 1848 | 0 | - | 4.88 | 30,309 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.64 | 22,953 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 112,090 |
| UK Immigration by Country | 0 | - | 4.93 | 136,675 |
| United Kingdom Country Quiz | 0 | - | 4.95 | 133,973 |
| Counties of England Map Quiz | 0 | - | 4.97 | 301,902 |
| British Monopoly Board - Map Quiz | 0 | - | 4.46 | 19,918 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 93,933 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 111,003 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,511 |
| Political Movements by Country | 0 | - | 4.44 | 71,441 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 73,956 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,062 |
| All U.S. Supreme Court Justices | 0 | - | 4.52 | 28,500 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,057 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.45 | 11,367 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 185,943 |
| Every European Country Shape | 0 | - | 4.94 | 195,974 |
| Most Guessed European Capitals | 0 | - | 4.89 | 100,271 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.70 | 57,213 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 86,091 |
| Ireland Country Quiz | 0 | - | 4.64 | 131,913 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,369 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 81,762 |
| Geography of the Spanish Empire | 0 | - | 4.48 | 36,638 |
| Countries that Visit the UK the Most | 0 | - | 4.85 | 71,754 |
| English Monarchs Quiz | 0 | - | 4.92 | 484,964 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.34 | 59,894 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 387,161 |
| Countries with the Most Hindus | 0 | - | 4.90 | 120,603 |
| Hindu Countries | 0 | - | 4.85 | 47,970 |
| Biggest Trading Partners – Australia | 0 | - | 4.92 | 59,604 |
| U.S. Presidential Trivia #1 | 0 | - | 4.47 | 105,785 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.57 | 91,002 |
| U.S. Presidential Trivia #2 | 0 | - | 4.48 | 51,076 |
| Assassinated U.S. Presidents | 0 | - | 4.61 | 90,885 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 37,191 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 90,781 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 128,170 |
| Random European Flag to Country | 0 | - | 4.89 | 176,546 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 161,986 |
| Biggest Trading Partners - Russia | 0 | - | 4.54 | 35,824 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 99,681 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 53,659 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 45,195 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,045 |
| Biggest Cities in Germany | 0 | - | 4.95 | 285,093 |
| Germany A-Z | 0 | - | 4.56 | 61,327 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 92,918 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 32,996 |
| Holy Roman Empire Countries | 0 | - | 4.78 | 54,292 |
| The Trojan War | 0 | - | 4.81 | 38,578 |
| Famous Ancient Romans | 0 | - | 4.69 | 83,933 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 48,588 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.83 | 106,679 |
| Italy A-Z | 0 | - | 4.48 | 47,547 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 89,837 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 82,582 |
| Roman Emperors | 0 | - | 4.96 | 112,587 |
| The Life of Julius Caesar | 0 | - | 4.48 | 33,413 |
| Countries Closest to Iceland | 0 | - | 4.88 | 70,799 |
| Countries that Beat Iceland | 0 | - | 4.81 | 41,207 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 96,174 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 61,562 |
| Middle Earth Geography | 0 | - | 4.56 | 38,974 |
| Lord of the Rings Trivia | 0 | - | 4.52 | 79,526 |
| Members of the Fellowship of the Ring | 0 | - | 4.74 | 45,007 |
| Commonwealth of Nations Countries | 0 | - | 4.93 | 233,196 |
| British History A-Z #1 | 0 | - | 4.42 | 43,323 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 59,289 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.89 | 50,735 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 134,471 |
| Scotland A-Z | 0 | - | 4.70 | 40,260 |
| Pope Facts | 0 | - | 4.39 | 30,545 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 73,960 |
| Colonies of Africa with a Map | 0 | - | 4.75 | 52,805 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 39,180 |
| US Presidents - 1 Minute Sprint | 0 | - | 4.41 | 298,466 |
| U.S. Presidents Who Died in Office | 0 | - | 4.78 | 34,039 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 67,749 |
| The American Revolution | 0 | - | 4.52 | 53,574 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 213,099 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 128,204 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 517,914 |
| Random European Countries on a Map | 0 | - | 4.97 | 277,096 |
| Flags of Countries That Border France | 0 | - | 4.89 | 120,102 |
| Flags of Countries that Border Germany | 0 | - | 4.85 | 94,524 |
| All Countries that Once Bordered Germany | 0 | - | 4.33 | 73,729 |
| Olympian Gods Quiz | 0 | - | 4.96 | 476,868 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 104,266 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 424,060 |
| Geography of the Dutch Empire | 0 | - | 4.68 | 33,999 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 76,561 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 105,924 |
| Invasions of Great Britain | 0 | - | 4.51 | 58,660 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 91,955 |
| Name a James Bond Movie A-Z | 0 | - | 4.62 | 9,847 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.91 | 35,658 |
| Animals in British History | 0 | - | 4.43 | 25,563 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,241 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 831,819 |
| The Vietnam War | 0 | - | 4.43 | 34,734 |
| History of India | 0 | - | 4.61 | 20,942 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 262,480 |
| History of South Africa | 0 | - | 4.60 | 17,373 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 25,883 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,317 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.20 | 10,667 |
| U.S. Vice Presidents | 0 | - | 4.40 | 131,808 |
| Governors Who Ran For President | 0 | - | 4.47 | 19,910 |
| U.S. Presidents by Event | 0 | - | 4.58 | 31,441 |
| First Ladies of the United States | 0 | - | 4.28 | 83,775 |
| Presidential Middle Names | 0 | - | 4.40 | 58,758 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,526 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 25,851 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 74,496 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.63 | 15,558 |
| Add a Letter - Make a U.S. President | 0 | - | 4.61 | 23,499 |
| Shortest U.S. Presidential Terms | 0 | - | 4.81 | 11,556 |
| Europe Map Quiz | 0 | - | 5.00 | 4,644,891 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 49,655 |
| European Secessionist Movements on a Map | 0 | - | 4.52 | 34,070 |
| Most Forested European Countries | 0 | - | 4.79 | 73,657 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,244 |
| European Cities with the Biggest Economies | 0 | - | 4.59 | 37,587 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 213,480 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 309,743 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 200,809 |
| History of Russia Quiz | 0 | - | 4.49 | 31,477 |
| Arms Exports - Russia | 0 | - | 4.45 | 24,476 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 92,276 |
| History of Austria | 0 | - | 4.69 | 17,434 |
| Biggest French Empire Countries | 0 | - | 4.50 | 64,248 |
| Geography of the French Empire | 0 | - | 4.51 | 26,510 |
| The French Revolution | 0 | - | 4.46 | 23,211 |
| History of France Quiz | 0 | - | 4.56 | 42,294 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.42 | 23,087 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 25,886 |
| Mythology A-Z | 0 | - | 4.30 | 36,288 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,255 |
| Figures from Greek Mythology | 0 | - | 4.90 | 178,660 |
| Least Irish U.S. States | 0 | - | 4.47 | 17,908 |
| History of Italy | 0 | - | 4.54 | 31,459 |
| Roman History Vocabulary | 0 | - | 4.40 | 56,977 |
| Roman History by Picture | 0 | - | 4.46 | 25,949 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 121,858 |
