| Prime Ministers of the UK | 0 | - | 4.95 | 437,881 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,764 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,853 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,431 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,972 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 94,843 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,241 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,688,308 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,438 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,702 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,471 |
| Country by Photo of its Leader | 0 | - | 4.72 | 123,867 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,166 |
| Arms Exports - Russia | 0 | - | 4.48 | 25,121 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,329 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,734 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,170 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,918 |
| Countries of the Popes | 0 | - | 4.79 | 127,876 |
| National Founders | 0 | - | 4.40 | 83,792 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 425,880 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,254 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,646 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,052 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 381,107 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,809 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,928 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,877 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,010 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,033 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,650 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,174 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 191,353 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,154 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,060 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,248 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,893 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 76,135 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,299 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,709 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,616 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,431 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,612 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,445 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,415 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,031 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,744 |
| Political Movements by Country | 0 | - | 4.46 | 72,468 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,621 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,456 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,090 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,354 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,926 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,063 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,800 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,753 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,522 |
| Every European Country Shape | 0 | - | 4.96 | 201,312 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,445 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,399 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,792 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,050 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,272 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,253 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,927 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,726 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,103 |
| UK Immigration by Country | 0 | - | 4.94 | 140,680 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,471 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,917 |
| Name the English Monarchs | 0 | - | 4.91 | 501,523 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,020 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 131,184 |
| Hindu Countries | 0 | - | 4.86 | 50,010 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,434 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,502 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,735 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,906 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,304 |
| Russia by Picture | 0 | - | 4.40 | 20,364 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,488 |
| The Trojan War | 0 | - | 4.83 | 39,652 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,142 |
| Name that Greek Letter | 0 | - | 4.93 | 323,098 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,547 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,421 |
| Roman Emperors | 0 | - | 4.95 | 119,660 |
| Monty Python Quotes | 0 | - | 4.88 | 42,437 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,188 |
| Pope Facts | 0 | - | 4.39 | 31,205 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,844 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,342 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,247 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,528 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,259 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,596 |
| Presidential Middle Names | 0 | - | 4.41 | 60,106 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,186 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,440 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,938 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,356 |
| The American Revolution | 0 | - | 4.52 | 54,214 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,800 |
| Random European Flag to Country | 0 | - | 4.89 | 181,975 |
| History of Russia Quiz | 0 | - | 4.49 | 31,880 |
| Flags of Countries That Border Russia | 0 | - | 4.70 | 70,508 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,703 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,905 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,867 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,614 |
| Ancient Greek Words | 0 | - | 4.93 | 111,360 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,551 |
| History of Italy | 0 | - | 4.55 | 31,936 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,755 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,615 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,168 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,125 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,796 |
| Animals in British History | 0 | - | 4.44 | 25,978 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 857,590 |
| Scotland A-Z | 0 | - | 4.73 | 41,230 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,621 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,919 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,072 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,889 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,632 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,862 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,346 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,850 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,640 |
| Europe Map Quiz | 0 | - | 5.00 | 4,755,743 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,920 |
| Random European Countries on a Map | 0 | - | 4.97 | 283,095 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 317,548 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,310 |
| Russia A-Z | 0 | - | 4.46 | 27,222 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,687 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,537 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,574 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,339 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,195 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 387,522 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,611 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 37,700 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,222 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,711 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,692 |
| The Vietnam War | 0 | - | 4.44 | 35,482 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,172 |
| Communist Countries in History | 0 | - | 4.63 | 494,948 |
| History of India | 0 | - | 4.61 | 21,396 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,391 |
| Africa Map Quiz | 0 | - | 5.00 | 2,114,764 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,802 |
| History of South Africa | 0 | - | 4.60 | 17,661 |
| Oceania Map Quiz | 0 | - | 4.98 | 640,646 |
| Australian Capitals | 0 | - | 4.92 | 62,695 |
| History of Mexico | 0 | - | 4.58 | 15,291 |
| United States Map Quiz | 0 | - | 4.98 | 4,154,074 |
| American Political Words | 0 | - | 4.39 | 23,396 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,136 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,504 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.20 | 10,853 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,057 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,241 |
| First Ladies of the United States | 0 | - | 4.28 | 85,536 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,927 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,201 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,929 |
| U.S. President Scramble | 0 | - | 4.40 | 116,638 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,159 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,935 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,147 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,847 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,795 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,999 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,551 |
| Official European Union Languages | 0 | - | 4.97 | 238,142 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,624 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,530 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,298 |
| Most Forested European Countries | 0 | - | 4.80 | 75,243 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,608 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,382 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,936 |
| History of Austria | 0 | - | 4.70 | 17,835 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,113 |
| Geography of the French Empire | 0 | - | 4.45 | 27,025 |
| The French Revolution | 0 | - | 4.46 | 23,903 |
| History of France | 0 | - | 4.59 | 56,840 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,464 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,225 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 144,303 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,941 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,876 |
| Mythology A-Z | 0 | - | 4.31 | 37,169 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,458 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,027 |
| Byzantine History | 0 | - | 4.91 | 28,755 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.26 | 102,538 |
