| Prime Ministers of the UK | 0 | - | 4.96 | 434,249 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,374 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,619 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,655 |
| Canadian Prime Ministers | 0 | - | 4.63 | 56,991 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,134 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,152 |
| Name the Popes Quiz | 0 | - | 4.47 | 136,998 |
| Countries of the Popes | 0 | - | 4.79 | 127,108 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,650,185 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,070 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,059 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,732 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,177 |
| Arms Exports - Russia | 0 | - | 4.48 | 24,756 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,709 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,483 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,439 |
| National Founders | 0 | - | 4.40 | 83,626 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 423,408 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,391 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,317 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,815 |
| Paramount Leaders of China | 0 | - | 4.36 | 10,990 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,403 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,667 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,627 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,215 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,602 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,244 |
| Flags of Countries That Border Russia | 0 | - | 4.70 | 70,135 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,571 |
| UK Cities Map Quiz | 0 | - | 4.95 | 461,977 |
| Pope Facts | 0 | - | 4.39 | 31,019 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,564 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,747 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,807 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,314 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,222 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,494 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,824 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,329 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,282 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,019 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 55,942 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,624 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,194 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,267 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,493 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,297 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,696 |
| UK Immigration by Country | 0 | - | 4.94 | 139,518 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,018 |
| Counties of England Map Quiz | 0 | - | 4.97 | 305,986 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,586 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,523 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,101 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,179 |
| Political Movements by Country | 0 | - | 4.46 | 72,235 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,139 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,717 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,872 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,366 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,666 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,160 |
| Every European Country Shape | 0 | - | 4.96 | 199,921 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,161 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,107 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,896 |
| Biggest Cities in Russia | 0 | - | 4.49 | 81,990 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,396 |
| Name that Greek Letter | 0 | - | 4.94 | 321,481 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,919 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,183 |
| Name the English Monarchs | 0 | - | 4.92 | 497,541 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,241 |
| Hindu Countries | 0 | - | 4.85 | 49,471 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 60,908 |
| U.S. Vice Presidents | 0 | - | 4.41 | 134,796 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 107,875 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,391 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 92,937 |
| Presidential Middle Names | 0 | - | 4.41 | 59,651 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,686 |
| Assassinated U.S. Presidents | 0 | - | 4.61 | 93,764 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,149 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,588 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,824 |
| Random European Flag to Country | 0 | - | 4.89 | 180,787 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,397 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,495 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,445 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,653 |
| The Trojan War | 0 | - | 4.83 | 39,400 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,408 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 83,996 |
| Roman Emperors | 0 | - | 4.95 | 118,347 |
| Monty Python Quotes | 0 | - | 4.88 | 42,308 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,115 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,008 |
| Scotland A-Z | 0 | - | 4.73 | 41,018 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,808 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,646 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,902 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 39,962 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 303,246 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,717 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,337 |
| The American Revolution | 0 | - | 4.52 | 54,040 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,100 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,333 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,116 |
| Random European Countries on a Map | 0 | - | 4.97 | 281,743 |
| History of Russia Quiz | 0 | - | 4.49 | 31,777 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,081 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,312 |
| Olympian Gods Quiz | 0 | - | 4.96 | 495,232 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,275 |
| Ancient Greek Words | 0 | - | 4.92 | 110,596 |
| History of Italy | 0 | - | 4.55 | 31,803 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,321 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,232 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,469 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,965 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,628 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,362 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.91 | 37,068 |
| 2025–2026 English Premier League Teams | 0 | - | 4.86 | 850,577 |
| The Vietnam War | 0 | - | 4.43 | 35,280 |
| History of India | 0 | - | 4.61 | 21,269 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,381 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,369 |
| History of South Africa | 0 | - | 4.60 | 17,594 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,068 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,457 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.20 | 10,803 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,158 |
| First Ladies of the United States | 0 | - | 4.28 | 85,211 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,808 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,101 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,204 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 15,989 |
| Add a Letter - Make a U.S. President | 0 | - | 4.61 | 23,819 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,673 |
| Europe Map Quiz | 0 | - | 5.00 | 4,728,517 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,135 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,723 |
| Most Forested European Countries | 0 | - | 4.80 | 74,872 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,525 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,159 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,049 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 315,519 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,147 |
| Russia A-Z | 0 | - | 4.46 | 27,129 |
| History of Austria | 0 | - | 4.70 | 17,741 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,853 |
| Geography of the French Empire | 0 | - | 4.48 | 26,917 |
| The French Revolution | 0 | - | 4.46 | 23,757 |
| History of France | 0 | - | 4.59 | 55,920 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,374 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 26,910 |
| Mythology A-Z | 0 | - | 4.31 | 36,967 |
| Figures from Greek Mythology | 0 | - | 4.91 | 184,749 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,624 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.26 | 101,378 |
| The Vikings! | 0 | - | 4.45 | 28,236 |
| The Portuguese Empire | 0 | - | 4.54 | 11,984 |
| Arthurian Legend | 0 | - | 4.33 | 25,047 |
| Biggest British Empire Countries | 0 | - | 4.73 | 87,247 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,014 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,140 |
| Name the James Bond Movies | 0 | - | 4.56 | 157,363 |
| James Bond Trivia | 0 | - | 4.46 | 39,131 |
| Shakespeare's Plays Quiz | 0 | - | 4.38 | 385,524 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,383 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,157 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,720 |
| Geography of the British Empire | 0 | - | 4.48 | 39,464 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 61,483 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 276,986 |
| History of Iran | 0 | - | 4.65 | 16,261 |
| The Iraq War | 0 | - | 4.47 | 15,543 |
| History of China | 0 | - | 4.37 | 56,656 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,827 |
| Communist Countries in History | 0 | - | 4.63 | 492,196 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.68 | 55,142 |
| Countries of Africa | 0 | - | 5.00 | 2,505,480 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,158 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,754 |
| African East Coast | 0 | - | 4.96 | 94,960 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,835 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,697 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,736 |
| Australian Capitals | 0 | - | 4.92 | 62,586 |
| Australia A-Z | 0 | - | 4.54 | 49,769 |
| Australia Map Quiz | 0 | - | 4.94 | 342,294 |
| History of Mexico | 0 | - | 4.58 | 15,223 |
| United States Map Quiz | 0 | - | 4.98 | 4,140,218 |
| U.S. States by Governor | 0 | - | 4.43 | 17,976 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,563 |
