| Prime Ministers of the UK | 0 | - | 4.96 | 434,222 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,483 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,649,849 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,645 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,703 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,435 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,370 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,690 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,146 |
| Name the Popes Quiz | 0 | - | 4.47 | 136,981 |
| Countries of the Popes | 0 | - | 4.79 | 127,100 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,170 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,347 |
| Name that Greek Letter | 0 | - | 4.94 | 321,469 |
| Monty Python Quotes | 0 | - | 4.88 | 42,307 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,563 |
| Canadian Prime Ministers | 0 | - | 4.63 | 56,982 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,112 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,295 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 423,379 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,385 |
| Ancient Greek Words | 0 | - | 4.92 | 110,580 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,317 |
| Paramount Leaders of China | 0 | - | 4.36 | 10,989 |
| U.S. Vice Presidents | 0 | - | 4.41 | 134,767 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 107,868 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,382 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 92,927 |
| Presidential Middle Names | 0 | - | 4.41 | 59,647 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,394 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,681 |
| Assassinated U.S. Presidents | 0 | - | 4.61 | 93,760 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,148 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,654 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,622 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,204 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,593 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,238 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,715 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,618 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,359 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,273 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,205 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,558 |
| UK Cities Map Quiz | 0 | - | 4.95 | 461,959 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.91 | 37,067 |
| Pope Facts | 0 | - | 4.39 | 31,019 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,738 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,801 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,209 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,491 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,712 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,128 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,810 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,316 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,273 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,010 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 55,930 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,191 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,265 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,491 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 143,040 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 95,884 |
| UK Immigration by Country | 0 | - | 4.94 | 139,511 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,004 |
| Counties of England Map Quiz | 0 | - | 4.97 | 305,983 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,140 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,522 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,090 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,366 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,155 |
| First Ladies of the United States | 0 | - | 4.28 | 85,206 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,101 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,198 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 15,989 |
| Add a Letter - Make a U.S. President | 0 | - | 4.61 | 23,819 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,153 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,673 |
| Every European Country Shape | 0 | - | 4.95 | 199,884 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,104 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,064 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,056 |
| Ireland Country Quiz | 0 | - | 4.69 | 133,833 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,704 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,004 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,385 |
| World Capitals Closest to Madrid | 0 | - | 4.50 | 42,348 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,175 |
| Name the English Monarchs | 0 | - | 4.92 | 497,507 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 61,474 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 396,789 |
| National Founders | 0 | - | 4.40 | 83,625 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 60,904 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,808 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,579 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,816 |
| Random European Flag to Country | 0 | - | 4.89 | 180,772 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,385 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,435 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,763 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,556 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,023 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,913 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,410 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,659 |
| The Trojan War | 0 | - | 4.83 | 39,400 |
| Famous Ancient Romans | 0 | - | 4.69 | 84,990 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,189 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,390 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,176 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 83,989 |
| Roman Emperors | 0 | - | 4.95 | 118,339 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,922 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,769 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,293 |
| Spain by Picture | 0 | - | 4.21 | 14,653 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,773 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 63,339 |
| Do You Even Know Anything About Shakespeare? | 0 | - | 4.57 | 34,187 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,110 |
| British History A-Z #1 | 0 | - | 4.45 | 45,769 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,288 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 51,911 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 138,937 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,807 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,646 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,900 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,451 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 303,224 |
| The George Washington Presidency | 0 | - | 4.03 | 14,469 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,653 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,448 |
| The John Adams Presidency | 0 | - | 4.12 | 8,673 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,862 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,678 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,197 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,602 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,331 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,765 |
| The American Revolution | 0 | - | 4.52 | 54,039 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,063 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,324 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,094 |
| Random European Countries on a Map | 0 | - | 4.97 | 281,726 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 87,948 |
| History of Russia Quiz | 0 | - | 4.49 | 31,774 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,074 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,304 |
| All Countries that Once Bordered Germany | 0 | - | 4.33 | 74,562 |
| Countries of the German Empire | 0 | - | 4.51 | 37,626 |
| Olympian Gods Quiz | 0 | - | 4.96 | 495,120 |
| History of Italy | 0 | - | 4.55 | 31,801 |
| Italy by Picture | 0 | - | 4.41 | 30,714 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,467 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,964 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,360 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,280 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,812 |
| Name a James Bond Movie A-Z | 0 | - | 4.60 | 10,260 |
| Shakespearean Characters | 0 | - | 4.38 | 37,497 |
| Animals in British History | 0 | - | 4.44 | 25,863 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,584 |
| 2025–2026 English Premier League Teams | 0 | - | 4.86 | 850,515 |
| 10 Plagues of Egypt | 0 | - | 4.41 | 45,649 |
| History of India | 0 | - | 4.61 | 21,268 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,376 |
| History of South Africa | 0 | - | 4.60 | 17,592 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,870 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,663 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 128,636 |
| Europe Map Quiz | 0 | - | 5.00 | 4,728,300 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,721 |
| Most Forested European Countries | 0 | - | 4.80 | 74,868 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,521 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,038 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 315,500 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,129 |
| Arms Exports - Russia | 0 | - | 4.48 | 24,756 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,493 |
| History of Austria | 0 | - | 4.70 | 17,738 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,852 |
| Geography of the French Empire | 0 | - | 4.48 | 26,917 |
| The French Revolution | 0 | - | 4.46 | 23,754 |
| History of France | 0 | - | 4.59 | 55,914 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,374 |
| German History A-Z | 0 | - | 4.49 | 24,188 |
| Figures from Greek Mythology | 0 | - | 4.91 | 184,729 |
| Countries that Beat Ireland | 0 | - | 4.39 | 34,069 |
| Roman History Vocabulary | 0 | - | 4.40 | 57,442 |
| The Life of Julius Caesar | 0 | - | 4.39 | 38,938 |
| Roman History by Picture | 0 | - | 4.46 | 26,330 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,612 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.26 | 101,372 |
| The Vikings! | 0 | - | 4.45 | 28,236 |
| The Portuguese Empire | 0 | - | 4.54 | 11,983 |
| Arthurian Legend | 0 | - | 4.33 | 25,047 |
| Biggest British Empire Countries | 0 | - | 4.73 | 87,241 |
| UK Rivers Map Quiz | 0 | - | 4.54 | 30,244 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,012 |
| British Places A-Z | 0 | - | 4.29 | 79,581 |
