| Prime Ministers of the UK | 0 | - | 4.95 | 412,391 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,445,562 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 75,845 |
| Soviet Leaders 1917–1991 | 0 | - | 4.42 | 91,536 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 52,761 |
| Name the Popes Quiz | 0 | - | 4.46 | 132,046 |
| Countries of the Popes | 0 | - | 4.80 | 122,738 |
| Prime Ministers of Australia | 0 | - | 4.49 | 30,245 |
| Canadian Prime Ministers Quiz | 0 | - | 4.63 | 54,089 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 59,735 |
| Commonwealth of Nations Countries | 0 | - | 4.93 | 230,492 |
| Country by Photo of its Leader | 0 | - | 4.79 | 120,089 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 67,734 |
| Olympian Gods Quiz | 0 | - | 4.96 | 471,684 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 52,394 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 81,902 |
| U.S. Presidents by Picture | 0 | - | 4.85 | 411,389 |
| First Names of U.S. Presidents | 0 | - | 4.84 | 369,582 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 83,003 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 66,576 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 103,431 |
| Ancient Greek Words | 0 | - | 4.92 | 105,377 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 418,325 |
| Paramount Leaders of China | 0 | - | 4.35 | 10,543 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 231,734 |
| U.S. Presidential Trivia #1 | 0 | - | 4.49 | 103,676 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.56 | 88,779 |
| U.S. Presidential Trivia #2 | 0 | - | 4.48 | 49,222 |
| Assassinated U.S. Presidents | 0 | - | 4.61 | 87,678 |
| U.S. Presidents Who Died in Office | 0 | - | 4.78 | 33,206 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 35,813 |
| Name a Valid U.S. President #1 | 0 | - | 4.90 | 180,501 |
| Play-Doh Presidents | 0 | - | 5.00 | 78,997 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 142,574 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 70,169 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.94 | 57,440 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 65,508 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 52,042 |
| Countries of the Soviet Union | 0 | - | 4.98 | 189,945 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 77,769 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.64 | 22,654 |
| Pope Facts | 0 | - | 4.39 | 30,043 |
| Prime Ministers of Israel | 0 | - | 4.06 | 17,128 |
| The Dictator Files: Chairman Mao | 0 | - | 4.33 | 20,056 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 100,615 |
| African Countries with the Most Christians | 0 | - | 4.92 | 71,926 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 70,572 |
| States of the German Confederation in 1848 | 0 | - | 4.85 | 29,357 |
| Biggest British Empire Countries | 0 | - | 4.70 | 84,231 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 109,733 |
| English Monarchs Quiz | 0 | - | 4.90 | 475,975 |
| Asian Countries with the Most Christians | 0 | - | 4.87 | 91,740 |
| Biggest Trading Partners – Australia | 0 | - | 4.92 | 58,327 |
| U.S. Bill of Rights | 0 | - | 4.53 | 31,781 |
| U.S. Vice Presidents | 0 | - | 4.39 | 128,889 |
| Governors Who Ran For President | 0 | - | 4.47 | 19,585 |
| U.S. Presidents by Event | 0 | - | 4.57 | 30,812 |
| First Ladies of the United States | 0 | - | 4.27 | 82,823 |
| Presidential Middle Names | 0 | - | 4.37 | 58,059 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.42 | 23,285 |
| The Abraham Lincoln Presidency | 0 | - | 4.51 | 25,579 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.31 | 72,551 |
| Random U.S. Vice President to President | 0 | - | 4.43 | 29,595 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.63 | 15,165 |
| Add a Letter - Make a U.S. President | 0 | - | 4.61 | 23,129 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 183,393 |
| Every European Country Shape | 0 | - | 4.95 | 181,003 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 87,755 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.70 | 56,373 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 124,582 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.35 | 47,109 |
| The Trojan War | 0 | - | 4.81 | 37,816 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 615,113 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.83 | 102,807 |
| Ancient Roman Trivia #1 | 0 | - | 4.83 | 75,114 |
| Roman Emperors | 0 | - | 4.96 | 109,535 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.21 | 79,280 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.96 | 81,468 |
| Do You Even Know Anything About Shakespeare? | 0 | - | 4.58 | 33,366 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.34 | 58,413 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.36 | 27,644 |
| National Founders | 0 | - | 4.40 | 82,356 |
| U.S. Presidential Running Mates | 0 | - | 4.39 | 27,501 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,317 |
| The John Adams Presidency | 0 | - | 4.12 | 8,398 |
| The Theodore Roosevelt Presidency | 0 | - | 4.33 | 7,451 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,281 |
| The American Revolution | 0 | - | 4.52 | 53,150 |
| Neutral European Countries of WWII | 0 | - | 4.93 | 155,513 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.43 | 25,836 |
| Flags of Countries That Border France | 0 | - | 4.87 | 117,878 |
| Flags of Countries that Border Germany | 0 | - | 4.85 | 92,441 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.90 | 88,580 |
| Name that Greek Letter | 0 | - | 4.94 | 311,000 |
| Famous Ancient Romans | 0 | - | 4.68 | 82,822 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 114,596 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.83 | 83,810 |
| Roman History Vocabulary | 0 | - | 4.43 | 56,581 |
| Biggest Roman Empire Countries | 0 | - | 4.88 | 98,732 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 39,473 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 104,312 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 184,918 |
| Beatles Songs Quiz | 0 | - | 4.96 | 223,279 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 283,675 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.40 | 50,091 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.89 | 49,680 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 810,396 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 73,202 |
| Countries of the Japanese Empire | 0 | - | 4.96 | 101,815 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 51,512 |
| All U.S. Supreme Court Justices | 0 | - | 4.50 | 28,187 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.43 | 11,174 |
| US Presidents - 1 Minute Sprint | 0 | - | 4.41 | 294,056 |
| The George Washington Presidency | 0 | - | 4.03 | 14,141 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,531 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 17,638 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,176 |
| Name a Valid U.S. President #2 | 0 | - | 4.53 | 66,249 |
| Category Elimination - U.S. States #1 | 0 | - | 4.92 | 208,329 |
| Europe Map Quiz | 0 | - | 5.00 | 4,553,415 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 509,485 |
| European Secessionist Movements on a Map | 0 | - | 4.52 | 33,396 |
| Random European Countries on a Map | 0 | - | 4.97 | 272,220 |
| Countries of Europe After World War II | 0 | - | 4.99 | 180,092 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 148,784 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 24,928 |
| Least Irish U.S. States | 0 | - | 4.47 | 17,616 |
| Roman History by Picture | 0 | - | 4.46 | 25,598 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 119,386 |
| Geography of the Dutch Empire | 0 | - | 4.68 | 33,567 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 76,178 |
| Invasions of Great Britain | 0 | - | 4.51 | 57,855 |
| British Monopoly Board - Map Quiz | 0 | - | 4.46 | 19,751 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.91 | 34,449 |
| 10 Plagues of Egypt | 0 | - | 4.41 | 45,249 |
| Communist Countries in History | 0 | - | 4.63 | 477,086 |
| History of India | 0 | - | 4.60 | 20,543 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.64 | 53,855 |
| Africa Map Quiz | 0 | - | 5.00 | 2,034,262 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 257,980 |
| History of South Africa | 0 | - | 4.59 | 17,174 |
| Oceania Map Quiz | 0 | - | 4.98 | 604,899 |
| Australian Capitals | 0 | - | 4.92 | 61,874 |
| History of Mexico | 0 | - | 4.58 | 14,751 |
| United States Map Quiz | 0 | - | 4.98 | 4,052,829 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 78,421 |
| Win the U.S. Presidential Election | 0 | - | 4.74 | 573,086 |
| U.S. Presidential Quotes | 0 | - | 4.36 | 43,721 |
| People in Pictures with Ronald Reagan | 0 | - | 4.33 | 39,383 |
| U.S. President Scramble | 0 | - | 4.39 | 112,433 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.47 | 22,201 |
| People in Pictures with Barack Obama | 0 | - | 4.09 | 46,666 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 125,964 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 65,163 |
| Biggest European Cities by Letter | 0 | - | 4.62 | 123,092 |
| Official European Union Languages | 0 | - | 4.98 | 228,009 |
| European Countries in their Native Language | 0 | - | 4.99 | 151,180 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 409,386 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 210,267 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 283,735 |
| Save Europeans by Guessing Countries | 0 | - | 4.87 | 192,833 |
| History of Russia Quiz | 0 | - | 4.48 | 31,098 |
| Countries Invaded by the USSR | 0 | - | 4.30 | 91,145 |
| History of Austria | 0 | - | 4.69 | 17,155 |
| Geography of the French Empire | 0 | - | 4.51 | 26,191 |
| The French Revolution | 0 | - | 4.45 | 22,862 |
| History of France Quiz | 0 | - | 4.56 | 41,696 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 22,818 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 136,421 |
| Ancient Greek Trivia | 0 | - | 4.56 | 65,300 |
| Mythology A-Z | 0 | - | 4.30 | 35,653 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.80 | 19,846 |
| Figures from Greek Mythology | 0 | - | 4.90 | 176,027 |
| History of Ireland Quiz | 0 | - | 4.44 | 20,264 |
| History of Italy | 0 | - | 4.53 | 31,042 |
| Countries Italy Declared War On | 0 | - | 4.75 | 41,818 |
| Byzantine History | 0 | - | 4.87 | 27,557 |
| History of The Netherlands | 0 | - | 4.45 | 16,572 |
| The Vikings! | 0 | - | 4.46 | 27,784 |
| The Portuguese Empire | 0 | - | 4.54 | 11,702 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.55 | 64,448 |
| Arthurian Legend | 0 | - | 4.32 | 24,706 |
| Wives of King Henry VIII | 0 | - | 4.55 | 52,473 |
| Countries the UK Declared War On | 0 | - | 4.56 | 117,735 |
| Geography of the British Empire | 0 | - | 4.51 | 38,464 |
| People Buried at Westminster Abbey | 0 | - | 4.67 | 13,813 |
| Medieval English History | 0 | - | 4.53 | 42,317 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.56 | 14,213 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,399,323 |
| Asia Map Quiz | 0 | - | 4.99 | 855,826 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 268,306 |
| History of Iran Quiz | 0 | - | 4.65 | 15,701 |
| Ottoman Empire Quiz | 0 | - | 4.44 | 16,437 |
| Vietnam War Countries | 0 | - | 4.81 | 90,291 |
| Chinese Inventions | 0 | - | 4.29 | 33,222 |
| History of China | 0 | - | 4.39 | 54,228 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 86,773 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 43,391 |
| Countries by Founding Story | 0 | - | 4.94 | 72,840 |
| Independence from Whom | 0 | - | 4.99 | 199,790 |
