| Prime Ministers of the UK | 0 | - | 4.95 | 440,337 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,871 |
| Prime Ministers of Australia | 0 | - | 4.50 | 32,025 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,669 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,887 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,217 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,066 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,710,424 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,074 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,981 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,561 |
| Country by Photo of its Leader | 0 | - | 4.72 | 124,298 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,703 |
| Arms Exports - Russia | 0 | - | 4.49 | 25,155 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,707 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,861 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,568 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,501 |
| Countries of the Popes | 0 | - | 4.79 | 128,380 |
| National Founders | 0 | - | 4.40 | 83,896 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 427,204 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,830 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,173 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,103 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 382,430 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,719 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 94,179 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,227 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,297 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,336 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,710 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,792 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 192,696 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,508 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,786 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,914 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,808 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,702 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,166 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,379 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,185 |
| Russia by Picture | 0 | - | 4.41 | 20,439 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,842 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 80,885 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,564 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,506 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,294 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,918 |
| Political Movements by Country | 0 | - | 4.46 | 72,639 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,047 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,110 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,957 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,832 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,298 |
| Every European Country Shape | 0 | - | 4.96 | 202,301 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,624 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,600 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,452 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,316 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 101,664 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,439 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,335 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,310 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,546 |
| UK Immigration by Country | 0 | - | 4.94 | 141,212 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,278 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,429 |
| Name the English Monarchs | 0 | - | 4.91 | 504,252 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,541 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,739 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,131 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,798 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,472 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,848 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,729 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,559 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,446 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,573 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,561 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,144 |
| The Trojan War | 0 | - | 4.83 | 39,814 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,315 |
| Name that Greek Letter | 0 | - | 4.93 | 324,252 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,319 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,670 |
| Roman Emperors | 0 | - | 4.95 | 120,454 |
| Monty Python Quotes | 0 | - | 4.89 | 42,516 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,754 |
| Pope Facts | 0 | - | 4.39 | 31,306 |
| Hindu Countries | 0 | - | 4.86 | 50,330 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,416 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,973 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,763 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 94,045 |
| Presidential Middle Names | 0 | - | 4.41 | 60,451 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,476 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,681 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,067 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,497 |
| The American Revolution | 0 | - | 4.52 | 54,296 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,802 |
| Random European Flag to Country | 0 | - | 4.89 | 183,054 |
| History of Russia Quiz | 0 | - | 4.47 | 31,960 |
| Flags of Countries That Border Russia | 0 | - | 4.70 | 83,428 |
| Flags of Countries That Border France | 0 | - | 4.88 | 123,438 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,035 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 97,539 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,079 |
| Ancient Greek Words | 0 | - | 4.93 | 111,977 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,606 |
| History of Italy | 0 | - | 4.55 | 32,066 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,042 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,732 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,311 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,449 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,976 |
| Animals in British History | 0 | - | 4.43 | 26,045 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 862,378 |
| Scotland A-Z | 0 | - | 4.73 | 41,351 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,932 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,992 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,311 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,234 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,569 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 305,547 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,243 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 221,528 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 134,699 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,933 |
| Europe Map Quiz | 0 | - | 5.00 | 4,773,118 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,068 |
| Random European Countries on a Map | 0 | - | 4.97 | 284,376 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 319,465 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,824 |
| Russia A-Z | 0 | - | 4.46 | 27,270 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,684 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,703 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 126,268 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,234 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,246 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 388,850 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,733 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 37,996 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,351 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,790 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,776 |
| The Vietnam War | 0 | - | 4.44 | 35,585 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,388 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,670 |
| Communist Countries in History | 0 | - | 4.63 | 496,725 |
| History of South Africa | 0 | - | 4.60 | 17,724 |
| Oceania Map Quiz | 0 | - | 4.98 | 654,797 |
| Australian Capitals | 0 | - | 4.92 | 62,764 |
| History of Mexico | 0 | - | 4.58 | 15,339 |
| United States Map Quiz | 0 | - | 4.98 | 4,164,282 |
| American Political Words | 0 | - | 4.39 | 23,439 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,181 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,541 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.22 | 10,876 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,551 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,290 |
| First Ladies of the United States | 0 | - | 4.28 | 85,766 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,986 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,253 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,292 |
| U.S. President Scramble | 0 | - | 4.40 | 117,146 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,245 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 24,008 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,235 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,958 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,863 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,370 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,808 |
| Official European Union Languages | 0 | - | 4.97 | 239,003 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,188 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,342 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,403 |
| Most Forested European Countries | 0 | - | 4.80 | 75,480 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,666 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,505 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 217,575 |
| History of Austria | 0 | - | 4.70 | 17,916 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,248 |
| Geography of the French Empire | 0 | - | 4.45 | 27,161 |
| The French Revolution | 0 | - | 4.47 | 24,072 |
| History of France | 0 | - | 4.61 | 57,313 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,405 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 145,037 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,092 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,954 |
| Mythology A-Z | 0 | - | 4.31 | 37,301 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,853 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,843 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,284 |
| Byzantine History | 0 | - | 4.91 | 28,925 |
| Byzantine Emperors | 0 | - | 4.92 | 14,395 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.27 | 103,265 |
| History of The Netherlands | 0 | - | 4.46 | 17,492 |
| The Vikings! | 0 | - | 4.46 | 28,372 |
| The Portuguese Empire | 0 | - | 4.58 | 12,086 |
