| Prime Ministers of the UK | 0 | - | 4.96 | 436,453 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,063 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,672,522 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,363 |
| Name that Greek Letter | 0 | - | 4.93 | 322,471 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,724 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,002 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,627 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 79,855 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,779 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,889 |
| Ancient Greek Words | 0 | - | 4.93 | 111,061 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,581 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,653 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,098 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,790 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,538 |
| Countries of the Popes | 0 | - | 4.79 | 127,564 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,257 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,230 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 143,792 |
| Monty Python Quotes | 0 | - | 4.88 | 42,371 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,588 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 97,734 |
| German History A-Z | 0 | - | 4.49 | 24,506 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,374 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 424,894 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 380,297 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,431 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,308 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,016 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,822 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.91 | 37,309 |
| British History A-Z #1 | 0 | - | 4.45 | 46,283 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 61,763 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,468 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,024 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,780 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,237 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,892 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,302 |
| Presidential Middle Names | 0 | - | 4.41 | 59,909 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,964 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,178 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,846 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,272 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 190,643 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,919 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,238 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,611 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,844 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,489 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,814 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,916 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,460 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,334 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,178 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,441 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,385 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,708 |
| All Countries that Once Bordered Germany | 0 | - | 4.34 | 74,727 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,730 |
| Famous Ancient Romans | 0 | - | 4.69 | 85,223 |
| UK Cities Map Quiz | 0 | - | 4.95 | 463,140 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,599 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,636 |
| Pope Facts | 0 | - | 4.39 | 31,125 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,614 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,276 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,145 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,665 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,006 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,511 |
| Countries of the German Empire | 0 | - | 4.51 | 37,778 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,015 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,391 |
| UK Immigration by Country | 0 | - | 4.94 | 140,059 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,862 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,171 |
| Name the English Monarchs | 0 | - | 4.92 | 499,924 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,658 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,201 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,419 |
| U.S. Vice Presidents | 0 | - | 4.39 | 135,598 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,195 |
| First Ladies of the United States | 0 | - | 4.28 | 85,361 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,864 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,158 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,649 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,076 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,878 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,712 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,729 |
| Every European Country Shape | 0 | - | 4.96 | 200,768 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,267 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,286 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,733 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,389 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,464 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,839 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,135 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,162 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,849 |
| Germany by Picture | 0 | - | 4.39 | 29,684 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,723 |
| The Trojan War | 0 | - | 4.83 | 39,550 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,109 |
| Ireland Country Quiz | 0 | - | 4.68 | 134,183 |
| Roman History Vocabulary | 0 | - | 4.40 | 57,520 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,260 |
| Roman Emperors | 0 | - | 4.95 | 119,172 |
| Roman History by Picture | 0 | - | 4.46 | 26,390 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,621 |
| Countries Closest to Iceland | 0 | - | 4.89 | 73,126 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,075 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,805 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,619 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,097 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 63,837 |
| Do You Even Know Anything About Shakespeare? | 0 | - | 4.57 | 34,263 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,817 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,326 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,748 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 398,917 |
| National Founders | 0 | - | 4.40 | 83,727 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,542 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,687 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,565 |
| The John Adams Presidency | 0 | - | 4.12 | 8,704 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,710 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,806 |
| The American Revolution | 0 | - | 4.52 | 54,139 |
| Random European Flag to Country | 0 | - | 4.89 | 181,497 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,445 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,624 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,204 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,024 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,040 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,522 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,864 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,308 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,384 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,141 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 139,894 |
| 2025–2026 English Premier League Teams | 0 | - | 4.86 | 854,831 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,872 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,838 |
| Flags of WW1 | 0 | - | 4.60 | 38,138 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,173 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,964 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,695 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,096 |
| The George Washington Presidency | 0 | - | 4.03 | 14,501 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,901 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,262 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,637 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,656 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 219,442 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,183 |
| Europe Map Quiz | 0 | - | 5.00 | 4,744,415 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,613 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,837 |
| Random European Countries on a Map | 0 | - | 4.97 | 282,606 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 316,689 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,463 |
| History of Russia Quiz | 0 | - | 4.49 | 31,837 |
| Arms Exports - Russia | 0 | - | 4.48 | 25,087 |
| Countries that Beat Ireland | 0 | - | 4.40 | 34,174 |
| History of Italy | 0 | - | 4.55 | 31,892 |
| Italy by Picture | 0 | - | 4.41 | 30,825 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,200 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,554 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,084 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,703 |
| UK Rivers Map Quiz | 0 | - | 4.54 | 30,305 |
| British Places A-Z | 0 | - | 4.29 | 79,724 |
| Name a James Bond Movie A-Z | 0 | - | 4.60 | 10,317 |
| Shakespeare's Plays Quiz | 0 | - | 4.38 | 386,708 |
| Shakespearean Characters | 0 | - | 4.38 | 37,563 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,449 |
| Animals in British History | 0 | - | 4.44 | 25,928 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,132 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,657 |
| 10 Plagues of Egypt | 0 | - | 4.41 | 53,693 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,030 |
| Communist Countries in History | 0 | - | 4.63 | 493,773 |
| History of India | 0 | - | 4.61 | 21,338 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,298 |
| Africa Map Quiz | 0 | - | 5.00 | 2,110,135 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,323 |
| History of South Africa | 0 | - | 4.60 | 17,635 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,250 |
| Australian Capitals | 0 | - | 4.92 | 62,652 |
| History of Mexico | 0 | - | 4.58 | 15,257 |
| United States Map Quiz | 0 | - | 4.98 | 4,147,776 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,842 |
| Win the U.S. Presidential Election | 0 | - | 4.80 | 622,018 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,405 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,126 |
| People in Pictures with Ronald Reagan | 0 | - | 4.35 | 40,533 |
