| Prime Ministers of the UK | 0 | - | 4.96 | 436,512 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,710 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,784 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,267 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,035 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,667 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,813 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,673,102 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,750 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,400 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,409 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,601 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,854 |
| Arms Exports - Russia | 0 | - | 4.48 | 25,089 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,073 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,629 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 79,868 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,554 |
| Countries of the Popes | 0 | - | 4.79 | 127,575 |
| National Founders | 0 | - | 4.40 | 83,732 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 424,931 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,908 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,320 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,027 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 380,331 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,262 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,767 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,734 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,826 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,178 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,617 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,803 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 190,665 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,928 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,631 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,858 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,502 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,833 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,930 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,472 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,349 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,195 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,446 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,388 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,375 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,619 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,642 |
| Political Movements by Country | 0 | - | 4.46 | 72,383 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,290 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,154 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,501 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,749 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,845 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,972 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,676 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,701 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,744 |
| Every European Country Shape | 0 | - | 4.96 | 200,794 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,343 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,289 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,441 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,896 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,483 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,134 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,400 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,816 |
| UK Immigration by Country | 0 | - | 4.94 | 140,093 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,885 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,630 |
| Name the English Monarchs | 0 | - | 4.92 | 499,992 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,672 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 119,245 |
| Hindu Countries | 0 | - | 4.86 | 49,809 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,207 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,422 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,288 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,483 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,180 |
| Russia by Picture | 0 | - | 4.40 | 20,324 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,150 |
| The Trojan War | 0 | - | 4.83 | 39,552 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,467 |
| Name that Greek Letter | 0 | - | 4.93 | 322,493 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,130 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,269 |
| Roman Emperors | 0 | - | 4.95 | 119,204 |
| Monty Python Quotes | 0 | - | 4.88 | 42,371 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,829 |
| Pope Facts | 0 | - | 4.39 | 31,127 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,620 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,180 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,127 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,246 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,911 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,318 |
| Presidential Middle Names | 0 | - | 4.41 | 59,918 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,972 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,190 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,852 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,276 |
| The American Revolution | 0 | - | 4.52 | 54,142 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,645 |
| Random European Flag to Country | 0 | - | 4.89 | 181,532 |
| History of Russia Quiz | 0 | - | 4.49 | 31,839 |
| Flags of Countries That Border Russia | 0 | - | 4.70 | 70,377 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,449 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,822 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,636 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,300 |
| Ancient Greek Words | 0 | - | 4.93 | 111,082 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,028 |
| History of Italy | 0 | - | 4.55 | 31,893 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,590 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,557 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,091 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 107,930 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,710 |
| Animals in British History | 0 | - | 4.44 | 25,930 |
| 2025–2026 English Premier League Teams | 0 | - | 4.86 | 854,947 |
| Scotland A-Z | 0 | - | 4.73 | 41,138 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,368 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,872 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,849 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,343 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,132 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,666 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 219,473 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,209 |
| Europe Map Quiz | 0 | - | 5.00 | 4,745,009 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,844 |
| Random European Countries on a Map | 0 | - | 4.97 | 282,622 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 316,716 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 210,946 |
| Russia A-Z | 0 | - | 4.46 | 27,185 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,125 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,437 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,212 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,073 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,171 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 386,757 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,455 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.91 | 37,328 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,138 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,658 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,127 |
| The Vietnam War | 0 | - | 4.43 | 35,399 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,037 |
| Communist Countries in History | 0 | - | 4.63 | 493,829 |
| History of India | 0 | - | 4.61 | 21,342 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,305 |
| Africa Map Quiz | 0 | - | 5.00 | 2,110,324 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,614 |
| History of South Africa | 0 | - | 4.60 | 17,636 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,371 |
| Australian Capitals | 0 | - | 4.92 | 62,655 |
| History of Mexico | 0 | - | 4.58 | 15,258 |
| United States Map Quiz | 0 | - | 4.98 | 4,147,977 |
| American Political Words | 0 | - | 4.39 | 23,376 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,115 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,490 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.20 | 10,832 |
| U.S. Vice Presidents | 0 | - | 4.39 | 135,614 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,197 |
| First Ladies of the United States | 0 | - | 4.28 | 85,369 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,869 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,160 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,665 |
| U.S. President Scramble | 0 | - | 4.40 | 116,455 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,080 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,881 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,084 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,773 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,732 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,837 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,394 |
| Official European Union Languages | 0 | - | 4.97 | 237,620 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,290 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,488 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,231 |
| Most Forested European Countries | 0 | - | 4.80 | 75,093 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,569 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,285 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,614 |
| History of Austria | 0 | - | 4.70 | 17,796 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,029 |
| Geography of the French Empire | 0 | - | 4.45 | 26,997 |
| The French Revolution | 0 | - | 4.46 | 23,857 |
| History of France | 0 | - | 4.59 | 56,590 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,423 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,087 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 143,816 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,865 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,836 |
| Mythology A-Z | 0 | - | 4.31 | 37,097 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,799 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,890 |
| Byzantine History | 0 | - | 4.91 | 28,698 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.26 | 102,004 |
| History of The Netherlands | 0 | - | 4.46 | 17,354 |
| The Vikings! | 0 | - | 4.46 | 28,283 |
