| Prime Ministers of the UK | 0 | - | 4.95 | 381,188 |
| Countries of the Popes | 0 | - | 4.86 | 108,320 |
| Biggest Trading Partners - Spain | 0 | - | 4.90 | 50,277 |
| Biggest Trading Partners - UK | 0 | - | 4.86 | 57,024 |
| Canadian Prime Ministers Quiz | 0 | - | 4.64 | 49,587 |
| Biggest Trading Partners - Germany | 0 | - | 4.98 | 62,524 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 100,044 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 178,812 |
| Soviet Leaders 1917–1991 | 0 | - | 4.42 | 87,345 |
| Prime Ministers of Australia | 0 | - | 4.47 | 27,809 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,169,990 |
| Top 10 Richest Countries in Europe | 0 | - | 4.88 | 135,237 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 64,854 |
| Country by Photo of its Leader | 0 | - | 4.79 | 115,216 |
| Monty Python Quotes | 0 | - | 4.89 | 40,405 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 584,370 |
| Biggest Cities in Sweden | 0 | - | 4.82 | 37,243 |
| Name the Popes Quiz | 0 | - | 4.45 | 120,427 |
| Name that Greek Letter | 0 | - | 4.94 | 295,921 |
| National Founders | 0 | - | 4.38 | 79,619 |
| Biggest Roman Empire Countries | 0 | - | 4.88 | 82,011 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 177,265 |
| Paramount Leaders of China | 0 | - | 4.31 | 9,939 |
| U.S. Presidents by Picture | 0 | - | 4.85 | 394,457 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 147,910 |
| Ancient Greek Words | 0 | - | 4.90 | 97,466 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 48,677 |
| UK Cities Map Quiz | 0 | - | 4.94 | 433,258 |
| Pope Facts | 0 | - | 4.42 | 26,448 |
| The Dictator Files: Chairman Mao | 0 | - | 4.32 | 18,519 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 353,040 |
| Name a Valid U.S. President #1 | 0 | - | 4.93 | 167,073 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.92 | 49,509 |
| Countries of Europe After World War II | 0 | - | 4.98 | 170,845 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 139,531 |
| Countries of the Soviet Union | 0 | - | 4.98 | 184,837 |
| Biggest Spanish Empire Countries | 0 | - | 4.90 | 93,539 |
| UK Immigration by Country | 0 | - | 4.95 | 125,221 |
| United Kingdom Country Quiz | 0 | - | 4.94 | 118,759 |
| Counties of England Map Quiz | 0 | - | 4.97 | 286,846 |
| British Monopoly Board - Map Quiz | 0 | - | 4.45 | 19,195 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 84,572 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 101,770 |
| Prime Ministers of Israel | 0 | - | 4.10 | 16,129 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 93,553 |
| African Countries with the Most Christians | 0 | - | 4.92 | 67,355 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 109,554 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 222,106 |
| U.S. Cabinet Departments | 0 | - | 4.85 | 67,574 |
| Most Forested European Countries | 0 | - | 4.82 | 68,224 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 133,670 |
| European Capital Superlatives - Top 2 | 0 | - | 4.93 | 61,678 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 74,511 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.32 | 39,845 |
| States of the German Confederation in 1848 | 0 | - | 4.83 | 26,517 |
| Political Movements by Country | 0 | - | 4.46 | 68,528 |
| Nordic Countries and Capitals | 0 | - | 4.94 | 76,661 |
| Geography of the Spanish Empire | 0 | - | 4.48 | 35,221 |
| Countries that Visit the UK the Most | 0 | - | 4.85 | 62,592 |
| English Monarchs Quiz | 0 | - | 4.91 | 446,988 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.32 | 53,693 |
| 2025 Football League Teams | 0 | - | 4.94 | 345,013 |
| Top 10 Richest Countries in Asia | 0 | - | 4.87 | 80,893 |
| Top 10 Richest Countries in Africa | 0 | - | 4.87 | 67,771 |
| U.S. Federal Agency Acronyms | 0 | - | 4.51 | 75,888 |
| All U.S. Supreme Court Justices | 0 | - | 4.49 | 27,322 |
| Deadliest U.S. Wars | 0 | - | 4.83 | 158,060 |
| Every European Country Shape | 0 | - | 4.95 | 171,343 |
| Most Guessed European Capitals | 0 | - | 4.89 | 96,462 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.71 | 53,834 |
| Category Elimination - European Countries #1 | 0 | - | 4.87 | 76,661 |
| Ireland Country Quiz | 0 | - | 4.72 | 125,216 |
| Countries Italy Declared War On | 0 | - | 4.79 | 39,940 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.82 | 9,902 |
| Roman History Vocabulary | 0 | - | 4.43 | 55,106 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 71,710 |
| Roman Emperors | 0 | - | 4.95 | 95,901 |
| The Life of Julius Caesar | 0 | - | 4.46 | 32,109 |
| Countries Closest to Iceland | 0 | - | 4.87 | 62,793 |
| The United States... or the United Kingdom? | 0 | - | 4.89 | 90,230 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 54,698 |
| Middle Earth Geography | 0 | - | 4.56 | 37,257 |
| Lord of the Rings Trivia | 0 | - | 4.51 | 75,336 |
| Members of the Fellowship of the Ring | 0 | - | 4.79 | 43,188 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 222,103 |
| British History A-Z | 0 | - | 4.47 | 39,499 |
| English First Names of the Middle Ages | 0 | - | 4.41 | 45,405 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.92 | 46,453 |
| Top 4 in English Football, 1888–2024 | 0 | - | 4.95 | 107,457 |
| Scotland A-Z | 0 | - | 4.75 | 37,747 |
| Biggest Trading Partners - Turkey | 0 | - | 4.82 | 44,916 |
| Biggest Trading Partners - China | 0 | - | 4.96 | 70,049 |
| Countries with the Most Hindus | 0 | - | 4.92 | 113,190 |
| Biggest Trading Partners - South Africa | 0 | - | 4.82 | 37,550 |
| Biggest Trading Partners - Australia | 0 | - | 4.88 | 42,873 |
| U.S. Vice Presidents | 0 | - | 4.42 | 119,521 |
| U.S. Presidential Trivia #1 | 0 | - | 4.51 | 96,947 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.56 | 81,582 |
| U.S. Presidential Trivia #2 | 0 | - | 4.51 | 39,716 |
| Assassinated U.S. Presidents | 0 | - | 4.54 | 80,023 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 33,536 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 71,172 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 116,045 |
| Random European Flag to Country | 0 | - | 4.89 | 161,672 |
| Countries that Bordered the USSR | 0 | - | 4.95 | 152,132 |
| Biggest Trading Partners - Russia | 0 | - | 4.56 | 33,995 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 88,776 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 43,817 |
| The Reign of Napoleon | 0 | - | 4.53 | 36,097 |
| Biggest Cities in Germany | 0 | - | 4.95 | 263,103 |
| Germany A-Z | 0 | - | 4.65 | 49,839 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 76,201 |
| Holy Roman Empire Countries | 0 | - | 4.58 | 42,037 |
| The Trojan War | 0 | - | 4.81 | 35,949 |
| Famous Ancient Romans | 0 | - | 4.72 | 74,329 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.58 | 46,299 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.81 | 85,413 |
| Italy A-Z | 0 | - | 4.43 | 40,599 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 399,554 |
| Geography of the Dutch Empire | 0 | - | 4.71 | 32,435 |
| Largest Nordic Cities on a Map | 0 | - | 4.76 | 23,280 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 74,689 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 99,885 |
| Invasions of Great Britain | 0 | - | 4.49 | 55,587 |
| Which City In the United Kingdom? | 0 | - | 4.96 | 74,680 |
| Shakespeare's Plays Quiz | 0 | - | 4.41 | 348,557 |
| Countries "Ruled" by King Charles III | 0 | - | 4.79 | 80,712 |
| 2025 English Premier League Teams | 0 | - | 4.85 | 740,639 |
| Countries Closest to Israel | 0 | - | 4.88 | 98,677 |
| The Vietnam War | 0 | - | 4.41 | 32,819 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 48,341 |
| Biggest Trading Partners - Colombia | 0 | - | 4.89 | 35,482 |
| U.S. Bill of Rights | 0 | - | 4.56 | 31,071 |
| American Political Words | 0 | - | 4.41 | 22,315 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.33 | 10,359 |
| US Presidents - 1 Minute Sprint | 0 | - | 4.44 | 278,886 |
| Name a Valid U.S. President #2 | 0 | - | 4.52 | 61,196 |
| The American Revolution | 0 | - | 4.51 | 51,686 |
| Category Elimination - U.S. States #1 | 0 | - | 4.90 | 194,844 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 457,270 |
| Random European Countries on a Map | 0 | - | 4.98 | 259,844 |
| Flags of Countries That Border France | 0 | - | 4.90 | 112,479 |
| Flags of Countries that Border Germany | 0 | - | 4.85 | 87,185 |
| All Countries that Once Bordered Germany | 0 | - | 4.35 | 70,027 |
| Olympian Gods Quiz | 0 | - | 4.96 | 457,244 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 99,978 |
| Roman History by Picture | 0 | - | 4.44 | 24,550 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 111,510 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.26 | 71,888 |
| The Vikings! | 0 | - | 4.44 | 27,107 |
| The Portuguese Empire | 0 | - | 4.54 | 11,339 |
| Arthurian Legend | 0 | - | 4.35 | 24,285 |
| Biggest British Empire Countries | 0 | - | 4.70 | 79,280 |
| UK Rivers Map Quiz | 0 | - | 4.60 | 27,976 |
| Which Country of the United Kingdom? | 0 | - | 4.60 | 35,219 |
| British Places A-Z | 0 | - | 4.32 | 75,988 |
| James Bond Movies | 0 | - | 4.65 | 143,656 |
| James Bond Trivia | 0 | - | 4.41 | 31,969 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.79 | 26,434 |
| Lord of the Rings - Races | 0 | - | 4.23 | 54,889 |
| The Ultimate LOTR Character Quiz - The Books | 0 | - | 4.60 | 17,705 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.90 | 30,884 |
| Wives of King Henry VIII | 0 | - | 4.53 | 44,633 |
| Countries the UK Declared War On | 0 | - | 4.58 | 112,297 |
| Geography of the British Empire | 0 | - | 4.50 | 37,029 |
| The Reign of Queen Elizabeth II | 0 | - | 4.38 | 33,743 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.33 | 25,385 |
| Doctor Who Actors | 0 | - | 4.59 | 16,840 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 255,357 |
| History of Iran Quiz | 0 | - | 4.63 | 15,123 |
| The Iraq War | 0 | - | 4.43 | 14,363 |
| History of China | 0 | - | 4.39 | 50,411 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 98,451 |
| History of India | 0 | - | 4.52 | 19,239 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 244,758 |
| African Countries with the Most Muslims | 0 | - | 4.76 | 80,982 |
| History of South Africa | 0 | - | 4.59 | 16,570 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.11 | 25,086 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.08 | 14,769 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.17 | 10,110 |
| Governors Who Ran For President | 0 | - | 4.47 | 18,892 |
| U.S. Presidents by Event | 0 | - | 4.58 | 29,095 |
| U.S. Presidential Running Mates | 0 | - | 4.41 | 25,705 |
| First Ladies of the United States | 0 | - | 4.27 | 79,886 |
| Presidential Middle Names | 0 | - | 4.37 | 56,094 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.41 | 22,518 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 24,838 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.31 | 64,310 |
| U.S. Presidents Who Died in Office | 0 | - | 4.75 | 31,209 |
| Random U.S. Vice President to President | 0 | - | 4.57 | 23,209 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.63 | 13,896 |
| Add a Letter - Make a U.S. President | 0 | - | 4.66 | 21,911 |
| Europe Map Quiz | 0 | - | 5.00 | 4,292,385 |
| European Capitals with the Least Sunshine | 0 | - | 4.48 | 47,609 |
| European Countries with NO Wolves | 0 | - | 4.63 | 63,773 |
| European Cities with the Biggest Economies | 0 | - | 4.58 | 35,344 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 202,496 |
| Europe Map with Random Merged Countries | 0 | - | 4.96 | 266,719 |
| Save Europeans by Guessing Countries | 0 | - | 4.87 | 167,013 |
| History of Russia Quiz | 0 | - | 4.48 | 29,867 |
