| Prime Ministers of the UK | 0 | - | 4.95 | 443,513 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,274 |
| Canadian Prime Ministers | 0 | - | 4.64 | 58,058 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 201,104 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,720 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,160 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,733,850 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,511 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,461 |
| Country by Photo of its Leader | 0 | - | 4.70 | 124,799 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 166,709 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.46 | 26,977 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 72,181 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 54,048 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 81,149 |
| Name the Popes Quiz | 0 | - | 4.47 | 139,158 |
| Countries of the Popes | 0 | - | 4.78 | 128,961 |
| National Founders | 0 | - | 4.40 | 84,012 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 429,036 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 162,637 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,696 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,274 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,148 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 384,052 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,877 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,546 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,668 |
| UK Cities Map Quiz | 0 | - | 4.96 | 467,007 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,776 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 241,056 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 194,162 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,997 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,764 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,831 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,672 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 86,312 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 66,134 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 72,104 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,805 |
| Countries That Border Russia | 0 | - | 4.98 | 465,148 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,764 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 81,269 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,707 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,598 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,401 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 29,115 |
| Political Movements by Country | 0 | - | 4.46 | 72,857 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,226 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,180 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,206 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,885 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 192,114 |
| Every European Country Shape | 0 | - | 4.96 | 203,383 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,969 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,851 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,354 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,741 |
| Countries that Border Poland | 0 | - | 4.99 | 173,424 |
| Russia Country Quiz | 0 | - | 4.83 | 115,540 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 103,519 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,268 |
| Countries Italy Declared War On | 0 | - | 4.77 | 50,879 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 117,207 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 87,091 |
| UK Immigration by Country | 0 | - | 4.94 | 141,971 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 141,409 |
| Countries that Visit the UK the Most | 0 | - | 4.88 | 76,084 |
| Name the English Monarchs | 0 | - | 4.91 | 507,785 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 98,234 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,962 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,777 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,274 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 77,198 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,556 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 62,147 |
| U.S. Bill of Rights | 0 | - | 4.52 | 35,410 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 97,496 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,716 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,828 |
| Countries Invaded by the USSR | 0 | - | 4.30 | 94,545 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 105,085 |
| The Trojan War | 0 | - | 4.83 | 40,133 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,491 |
| Name that Greek Letter | 0 | - | 4.93 | 325,455 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,389 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,747 |
| Roman Emperors | 0 | - | 4.95 | 121,557 |
| Monty Python Quotes | 0 | - | 4.89 | 42,637 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,697 |
| Pope Facts | 0 | - | 4.39 | 31,442 |
| Hindu Countries | 0 | - | 4.86 | 50,720 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,631 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,716 |
| U.S. Presidents by Event | 0 | - | 4.58 | 35,527 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,812 |
| Presidential Middle Names | 0 | - | 4.42 | 60,850 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,770 |
| Assassinated U.S. Presidents | 0 | - | 4.62 | 94,963 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,271 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,675 |
| The American Revolution | 0 | - | 4.52 | 54,406 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 533,313 |
| Random European Flag to Country | 0 | - | 4.90 | 184,601 |
| History of Russia Quiz | 0 | - | 4.47 | 32,033 |
| Russia by Picture | 0 | - | 4.41 | 20,501 |
| Russian History A-Z | 0 | - | 4.35 | 32,338 |
| Flags of Countries That Border France | 0 | - | 4.89 | 123,988 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,254 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 98,038 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,807 |
| Ancient Greek Words | 0 | - | 4.93 | 112,752 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 128,168 |
| History of Italy | 0 | - | 4.55 | 32,204 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,481 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,868 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,490 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 108,993 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,162 |
| Animals in British History | 0 | - | 4.43 | 26,132 |
| 2026–2027 English Premier League Teams | 0 | - | 4.84 | 873,883 |
| Scotland A-Z | 0 | - | 4.73 | 41,513 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,314 |
| Prime Ministers of Israel | 0 | - | 3.97 | 18,105 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,614 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,724 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,860 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 306,520 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,702 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,926 |
| Category Elimination - U.S. States #2 | 0 | - | 4.83 | 135,969 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,247 |
| Europe Map Quiz | 0 | - | 5.00 | 4,795,935 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,273 |
| Random European Countries on a Map | 0 | - | 4.97 | 285,500 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 321,065 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 217,683 |
| Arms Exports - Russia | 0 | - | 4.49 | 25,209 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,696 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.89 | 114,689 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 127,164 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,754 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,294 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 390,720 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,866 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 38,331 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,535 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,933 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 281,171 |
| The Vietnam War | 0 | - | 4.44 | 35,702 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,725 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,789 |
| Communist Countries in History | 0 | - | 4.63 | 499,018 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,982 |
| Australian Capitals | 0 | - | 4.92 | 62,887 |
| History of Mexico | 0 | - | 4.52 | 15,385 |
| United States Map Quiz | 0 | - | 4.98 | 4,174,622 |
| American Political Words | 0 | - | 4.39 | 23,492 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,231 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,580 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.22 | 10,916 |
| U.S. Vice Presidents | 0 | - | 4.39 | 137,250 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,390 |
| U.S. Presidential Running Mates | 0 | - | 4.41 | 28,814 |
| First Ladies of the United States | 0 | - | 4.28 | 86,049 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,343 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,559 |
| U.S. President Scramble | 0 | - | 4.40 | 117,600 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,394 |
| Add a Letter - Make a U.S. President | 0 | - | 4.58 | 24,133 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,375 |
| Win the 1828 U.S. Presidential Election | 0 | - | 4.32 | 59,795 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 48,127 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,966 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,899 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,591 |
| Official European Union Languages | 0 | - | 4.97 | 240,492 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,905 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,650 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,561 |
| Most Forested European Countries | 0 | - | 4.80 | 75,779 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,728 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,690 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 218,339 |
| Albania Country Quiz | 0 | - | 4.54 | 39,348 |
| Serbia Country Quiz | 0 | - | 4.44 | 35,275 |
| History of Austria | 0 | - | 4.70 | 17,995 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,422 |
| Geography of the French Empire | 0 | - | 4.45 | 27,245 |
| The French Revolution | 0 | - | 4.47 | 24,177 |
| History of France | 0 | - | 4.61 | 57,783 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,584 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,684 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 146,186 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,308 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,081 |
| Mythology A-Z | 0 | - | 4.31 | 37,470 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 21,101 |
| Figures from Greek Mythology | 0 | - | 4.92 | 194,842 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,591 |
| Byzantine History | 0 | - | 4.91 | 29,067 |
