| Prime Ministers of the UK | 0 | - | 4.95 | 437,818 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,730 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,688,056 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,849 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,319 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,157 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 94,838 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,715 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,230 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,904 |
| Countries of the Popes | 0 | - | 4.79 | 127,865 |
| Country by Photo of its Leader | 0 | - | 4.72 | 123,854 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,101 |
| Name that Greek Letter | 0 | - | 4.93 | 323,086 |
| Monty Python Quotes | 0 | - | 4.88 | 42,437 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,648 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,431 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,529 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,411 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 425,862 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,246 |
| Ancient Greek Words | 0 | - | 4.93 | 111,350 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,751 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,051 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,525 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,250 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,592 |
| Presidential Middle Names | 0 | - | 4.41 | 60,102 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 381,086 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,180 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,435 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,355 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 191,335 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,152 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,796 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,045 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,239 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,427 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,763 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,873 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,660 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,536 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,298 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,001 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,019 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 37,690 |
| Pope Facts | 0 | - | 4.39 | 31,201 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,609 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,446 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,168 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,797 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,937 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,942 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,881 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 76,122 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,281 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,699 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,609 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,606 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,442 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 144,282 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,656 |
| UK Immigration by Country | 0 | - | 4.94 | 140,673 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,455 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,020 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,191 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,739 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,007 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,502 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,049 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,241 |
| First Ladies of the United States | 0 | - | 4.28 | 85,534 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,200 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,928 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,157 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,934 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,510 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,795 |
| Every European Country Shape | 0 | - | 4.96 | 201,291 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,390 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,423 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,691 |
| Ireland Country Quiz | 0 | - | 4.69 | 134,384 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,835 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,124 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,848 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,097 |
| World Capitals Closest to Madrid | 0 | - | 4.50 | 42,406 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,901 |
| Name the English Monarchs | 0 | - | 4.91 | 501,477 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 61,966 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 400,277 |
| National Founders | 0 | - | 4.40 | 83,792 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,425 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,926 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,723 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,893 |
| Random European Flag to Country | 0 | - | 4.89 | 181,956 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,156 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,476 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,504 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,062 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,961 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,317 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,908 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,766 |
| The Trojan War | 0 | - | 4.83 | 39,648 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,387 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,384 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,534 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,611 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,418 |
| Roman Emperors | 0 | - | 4.95 | 119,655 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,139 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,371 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,659 |
| Spain by Picture | 0 | - | 4.21 | 14,761 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,370 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 64,068 |
| Do You Even Know Anything About Shakespeare? | 0 | - | 4.57 | 34,336 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,177 |
| British History A-Z #1 | 0 | - | 4.45 | 46,400 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,586 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,267 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 140,577 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,917 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,066 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,337 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,601 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,611 |
| The George Washington Presidency | 0 | - | 4.03 | 14,535 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,714 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,616 |
| The John Adams Presidency | 0 | - | 4.12 | 8,734 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,917 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,727 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,300 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,657 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,859 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,835 |
| The American Revolution | 0 | - | 4.52 | 54,212 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,323 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,840 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,692 |
| Random European Countries on a Map | 0 | - | 4.97 | 283,081 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 317,524 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,745 |
| History of Russia Quiz | 0 | - | 4.49 | 31,879 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,693 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,859 |
| All Countries that Once Bordered Germany | 0 | - | 4.34 | 74,862 |
| Countries of the German Empire | 0 | - | 4.51 | 37,867 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,565 |
| History of Italy | 0 | - | 4.55 | 31,936 |
| Italy by Picture | 0 | - | 4.41 | 30,888 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,613 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,165 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,794 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,102 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,636 |
| Name a James Bond Movie A-Z | 0 | - | 4.60 | 10,362 |
| Shakespearean Characters | 0 | - | 4.38 | 37,610 |
| Animals in British History | 0 | - | 4.44 | 25,976 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,709 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 857,493 |
| 10 Plagues of Egypt | 0 | - | 4.41 | 53,781 |
| History of India | 0 | - | 4.61 | 21,396 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,870 |
| History of South Africa | 0 | - | 4.60 | 17,660 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,063 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,753 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,129 |
| Europe Map Quiz | 0 | - | 5.00 | 4,755,417 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,916 |
| Most Forested European Countries | 0 | - | 4.80 | 75,237 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,608 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,925 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,230 |
| Arms Exports - Russia | 0 | - | 4.48 | 25,119 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,920 |
| History of Austria | 0 | - | 4.70 | 17,834 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,112 |
| Geography of the French Empire | 0 | - | 4.45 | 27,025 |
| The French Revolution | 0 | - | 4.46 | 23,901 |
| History of France | 0 | - | 4.59 | 56,827 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,464 |
| German History A-Z | 0 | - | 4.49 | 24,572 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,435 |
| Countries that Beat Ireland | 0 | - | 4.40 | 34,244 |
| Roman History Vocabulary | 0 | - | 4.40 | 57,572 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,057 |
| Roman History by Picture | 0 | - | 4.46 | 26,437 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,560 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.26 | 102,526 |
| The Vikings! | 0 | - | 4.46 | 28,319 |
| The Portuguese Empire | 0 | - | 4.58 | 12,047 |
| Arthurian Legend | 0 | - | 4.33 | 25,094 |
| Biggest British Empire Countries | 0 | - | 4.74 | 99,755 |
| UK Rivers Map Quiz | 0 | - | 4.54 | 30,402 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,264 |
