| Prime Ministers of the UK | 0 | - | 4.95 | 438,412 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,907 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,468 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,411 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,174 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,763 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,267 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,222 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 94,914 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,431 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,693,163 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,612 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,770 |
| Country by Photo of its Leader | 0 | - | 4.72 | 123,977 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,782 |
| Name that Greek Letter | 0 | - | 4.93 | 323,282 |
| Monty Python Quotes | 0 | - | 4.88 | 42,450 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,779 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,785 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,761 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,038 |
| Countries of the Popes | 0 | - | 4.79 | 128,012 |
| National Founders | 0 | - | 4.40 | 83,815 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 426,199 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,368 |
| Ancient Greek Words | 0 | - | 4.93 | 111,476 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,807 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,751 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,062 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 381,326 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 191,580 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,217 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,977 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,220 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,408 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,503 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,935 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,898 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,069 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,260 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,640 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,669 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,745 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,537 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,500 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,310 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,838 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,068 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 80,349 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,500 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,859 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,755 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,111 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,676 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,465 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,430 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,871 |
| UK Immigration by Country | 0 | - | 4.94 | 140,789 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,638 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,360 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,208 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,135 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 133,678 |
| Political Movements by Country | 0 | - | 4.46 | 72,501 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,216 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,952 |
| 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 | 190,665 |
| Every European Country Shape | 0 | - | 4.96 | 201,468 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,481 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,452 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,932 |
| Ireland Country Quiz | 0 | - | 4.69 | 134,472 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,291 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,614 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,051 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,142 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,022 |
| Name the English Monarchs | 0 | - | 4.91 | 502,097 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 62,013 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 400,852 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,948 |
| Hindu Countries | 0 | - | 4.86 | 50,080 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,515 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,615 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,368 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,698 |
| Presidential Middle Names | 0 | - | 4.41 | 60,174 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,261 |
| Assassinated U.S. Presidents | 0 | - | 4.62 | 94,535 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,392 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,884 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,042 |
| Random European Flag to Country | 0 | - | 4.89 | 182,203 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,288 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,493 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,639 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,607 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,129 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,934 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,211 |
| Germany A-Z | 0 | - | 4.56 | 62,572 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,518 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,977 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,783 |
| The Trojan War | 0 | - | 4.83 | 39,683 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,433 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,414 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,700 |
| Italy A-Z | 0 | - | 4.49 | 58,231 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,818 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,480 |
| Roman Emperors | 0 | - | 4.95 | 119,827 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,501 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,753 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,468 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 64,167 |
| Middle Earth Geography | 0 | - | 4.56 | 39,790 |
| Lord of the Rings Trivia | 0 | - | 4.53 | 81,426 |
| Members of the Fellowship of the Ring | 0 | - | 4.74 | 45,811 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,287 |
| British History A-Z #1 | 0 | - | 4.45 | 46,449 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,624 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,323 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 140,863 |
| Scotland A-Z | 0 | - | 4.73 | 41,260 |
| Pope Facts | 0 | - | 4.39 | 31,223 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,685 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,933 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,129 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,396 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,281 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,797 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,964 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,943 |
| The American Revolution | 0 | - | 4.52 | 54,230 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,588 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 134,033 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,197 |
| Random European Countries on a Map | 0 | - | 4.97 | 283,275 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 317,831 |
| History of Russia Quiz | 0 | - | 4.47 | 31,903 |
| Flags of Countries That Border France | 0 | - | 4.88 | 122,803 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,938 |
| All Countries that Once Bordered Germany | 0 | - | 4.34 | 74,916 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,339 |
| 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 | 30,913 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,730 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,640 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,200 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,197 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,831 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,177 |
| Name a James Bond Movie A-Z | 0 | - | 4.60 | 10,380 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 37,777 |
| 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 | 858,598 |
| The Vietnam War | 0 | - | 4.44 | 35,504 |
| History of India | 0 | - | 4.62 | 21,410 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,038 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,861 |
| History of South Africa | 0 | - | 4.60 | 17,677 |
| 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 | 136,167 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,247 |
| First Ladies of the United States | 0 | - | 4.28 | 85,595 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,946 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,215 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 77,016 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,179 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,948 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,814 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,707 |
| Europe Map Quiz | 0 | - | 5.00 | 4,759,177 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,327 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,952 |
| Most Forested European Countries | 0 | - | 4.80 | 75,283 |
| 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 | 217,070 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,752 |
| Arms Exports - Russia | 0 | - | 4.48 | 25,130 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,972 |
| History of Austria | 0 | - | 4.70 | 17,851 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,131 |
| Geography of the French Empire | 0 | - | 4.45 | 27,043 |
| The French Revolution | 0 | - | 4.46 | 23,922 |
| History of France | 0 | - | 4.59 | 56,921 |
| 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 | 37,196 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,704 |
| Countries that Beat Ireland | 0 | - | 4.40 | 34,276 |
