| Prime Ministers of the UK | 0 | - | 4.95 | 385,212 |
| Countries of the Popes | 0 | - | 4.85 | 112,330 |
| Soviet Leaders 1917–1991 | 0 | - | 4.42 | 87,959 |
| Canadian Prime Ministers Quiz | 0 | - | 4.64 | 50,301 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 101,646 |
| Name the Popes Quiz | 0 | - | 4.46 | 123,453 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 180,943 |
| Prime Ministers of Australia | 0 | - | 4.48 | 28,277 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,207,821 |
| Top 10 Richest Countries in Europe | 0 | - | 4.88 | 136,874 |
| Biggest Trading Partners - European Union | 0 | - | 4.90 | 65,654 |
| Countries of the Soviet Union | 0 | - | 4.98 | 185,770 |
| Country by Photo of its Leader | 0 | - | 4.78 | 116,285 |
| Biggest Trading Partners - Spain | 0 | - | 4.90 | 50,700 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.90 | 62,954 |
| Pope Facts | 0 | - | 4.41 | 28,228 |
| Arms Exports - Russia | 0 | - | 4.47 | 23,503 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 63,453 |
| National Founders | 0 | - | 4.39 | 80,031 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 178,802 |
| Paramount Leaders of China | 0 | - | 4.31 | 10,016 |
| U.S. Presidents by Picture | 0 | - | 4.85 | 397,205 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 149,305 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 34,251 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 49,336 |
| UK Cities Map Quiz | 0 | - | 4.95 | 436,706 |
| The Dictator Files: Chairman Mao | 0 | - | 4.32 | 18,651 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 355,670 |
| Name a Valid U.S. President #1 | 0 | - | 4.93 | 169,211 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.92 | 51,094 |
| Countries of Europe After World War II | 0 | - | 4.98 | 172,519 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 141,023 |
| Flags of Countries That Border Russia | 0 | - | 4.71 | 65,325 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 94,812 |
| UK Immigration by Country | 0 | - | 4.94 | 126,535 |
| United Kingdom Country Quiz | 0 | - | 4.94 | 120,647 |
| Counties of England Map Quiz | 0 | - | 4.97 | 288,977 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 80,927 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 85,664 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 103,128 |
| Prime Ministers of Israel | 0 | - | 4.10 | 16,299 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 94,746 |
| African Countries with the Most Christians | 0 | - | 4.92 | 68,131 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 110,770 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 223,758 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 67,982 |
| Most Forested European Countries | 0 | - | 4.82 | 68,952 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 135,218 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 59,799 |
| European Capital Superlatives - Top 2 | 0 | - | 4.93 | 62,145 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 75,053 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.32 | 40,112 |
| States of the German Confederation in 1848 | 0 | - | 4.84 | 26,922 |
| Political Movements by Country | 0 | - | 4.46 | 68,910 |
| Countries that Visit the UK the Most | 0 | - | 4.85 | 63,688 |
| English Monarchs Quiz | 0 | - | 4.91 | 451,849 |
| Top 10 Richest Countries in Asia | 0 | - | 4.87 | 82,746 |
| Top 10 Richest Countries in Africa | 0 | - | 4.87 | 68,613 |
| U.S. Federal Agency Acronyms | 0 | - | 4.51 | 76,397 |
| All U.S. Supreme Court Justices | 0 | - | 4.49 | 27,409 |
| Deadliest U.S. Wars | 0 | - | 4.83 | 159,402 |
| Every European Country Shape | 0 | - | 4.95 | 172,992 |
| Most Guessed European Capitals | 0 | - | 4.89 | 96,879 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.72 | 54,254 |
| Category Elimination - European Countries #1 | 0 | - | 4.88 | 77,672 |
| Biggest Cities in Russia | 0 | - | 4.49 | 77,377 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 589,871 |
| Countries Italy Declared War On | 0 | - | 4.76 | 40,281 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.81 | 10,182 |
| Monty Python Quotes | 0 | - | 4.89 | 40,571 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 223,642 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.34 | 25,787 |
| Scotland A-Z | 0 | - | 4.75 | 38,056 |
| Biggest Trading Partners - Turkey | 0 | - | 4.82 | 45,639 |
| Biggest Trading Partners - China | 0 | - | 4.96 | 70,715 |
| Countries with the Most Hindus | 0 | - | 4.91 | 114,293 |
| Biggest Trading Partners - South Africa | 0 | - | 4.82 | 37,958 |
| Biggest Trading Partners – Australia | 0 | - | 4.89 | 48,153 |
| U.S. Vice Presidents | 0 | - | 4.43 | 121,163 |
| U.S. Presidential Trivia #1 | 0 | - | 4.51 | 97,931 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.57 | 82,632 |
| U.S. Presidential Trivia #2 | 0 | - | 4.52 | 40,281 |
| Assassinated U.S. Presidents | 0 | - | 4.54 | 80,695 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 33,702 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 72,480 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 117,003 |
| Random European Flag to Country | 0 | - | 4.90 | 163,262 |
| Countries that Bordered the USSR | 0 | - | 4.94 | 154,109 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 88,086 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 90,104 |
| The Reign of Napoleon | 0 | - | 4.53 | 36,328 |
| Name that Greek Letter | 0 | - | 4.94 | 297,734 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.81 | 86,705 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 72,167 |
| Roman Emperors | 0 | - | 4.95 | 97,058 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 402,902 |
| Geography of the Dutch Empire | 0 | - | 4.70 | 32,611 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 75,088 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 100,707 |
| Invasions of Great Britain | 0 | - | 4.49 | 55,939 |
| Shakespeare's Plays Quiz | 0 | - | 4.41 | 351,884 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 757,781 |
| Countries Closest to Israel | 0 | - | 4.86 | 99,581 |
| The Vietnam War | 0 | - | 4.41 | 33,068 |
| Colonies of Africa with a Map | 0 | - | 4.80 | 48,868 |
| Biggest Trading Partners - Colombia | 0 | - | 4.89 | 36,008 |
| U.S. Bill of Rights | 0 | - | 4.53 | 31,164 |
| American Political Words | 0 | - | 4.41 | 22,408 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.33 | 10,428 |
| US Presidents - 1 Minute Sprint | 0 | - | 4.43 | 281,576 |
| Name a Valid U.S. President #2 | 0 | - | 4.52 | 61,954 |
| The American Revolution | 0 | - | 4.55 | 51,933 |
| Category Elimination - U.S. States #1 | 0 | - | 4.90 | 196,826 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 489,626 |
| Random European Countries on a Map | 0 | - | 4.98 | 261,995 |
| Flags of Countries That Border France | 0 | - | 4.88 | 113,456 |
| Flags of Countries that Border Germany | 0 | - | 4.85 | 88,026 |
| Olympian Gods Quiz | 0 | - | 4.96 | 459,943 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.92 | 100,396 |
| Ancient Greek Words | 0 | - | 4.90 | 98,749 |
| Biggest Roman Empire Countries | 0 | - | 4.88 | 82,685 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 112,938 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.26 | 73,156 |
| The Vikings! | 0 | - | 4.45 | 27,247 |
| The Portuguese Empire | 0 | - | 4.54 | 11,388 |
| Arthurian Legend | 0 | - | 4.35 | 24,341 |
| Biggest British Empire Countries | 0 | - | 4.70 | 80,229 |
| Which Country of the United Kingdom? | 0 | - | 4.60 | 35,646 |
| British Monopoly Board - Map Quiz | 0 | - | 4.46 | 19,308 |
| James Bond Movies | 0 | - | 4.70 | 145,108 |
| James Bond Trivia | 0 | - | 4.41 | 32,127 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.90 | 31,350 |
| Wives of King Henry VIII | 0 | - | 4.55 | 51,310 |
| Countries the UK Declared War On | 0 | - | 4.58 | 113,365 |
| Geography of the British Empire | 0 | - | 4.51 | 37,322 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.32 | 54,572 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 257,662 |
| History of Iran Quiz | 0 | - | 4.63 | 15,218 |
| The Iraq War | 0 | - | 4.45 | 14,469 |
| History of China | 0 | - | 4.38 | 51,029 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 99,077 |
| History of India | 0 | - | 4.52 | 19,434 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 247,466 |
| African Countries with the Most Muslims | 0 | - | 4.76 | 81,760 |
| History of South Africa | 0 | - | 4.59 | 16,665 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.11 | 25,167 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.08 | 14,817 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.17 | 10,159 |
| Governors Who Ran For President | 0 | - | 4.47 | 18,968 |
| U.S. Presidents by Event | 0 | - | 4.58 | 29,318 |
| U.S. Presidential Running Mates | 0 | - | 4.41 | 26,019 |
| First Ladies of the United States | 0 | - | 4.27 | 80,408 |
| Presidential Middle Names | 0 | - | 4.37 | 56,395 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.41 | 22,617 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 24,939 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 65,699 |
| U.S. Presidents Who Died in Office | 0 | - | 4.75 | 31,415 |
| Random U.S. Vice President to President | 0 | - | 4.55 | 28,035 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.63 | 14,075 |
| Add a Letter - Make a U.S. President | 0 | - | 4.66 | 22,145 |
| Europe Map Quiz | 0 | - | 5.00 | 4,334,382 |
| European Capitals with the Least Sunshine | 0 | - | 4.48 | 47,889 |
| European Secessionist Movements on a Map | 0 | - | 4.51 | 31,742 |
| European Countries with NO Wolves | 0 | - | 4.63 | 64,005 |
| European Cities with the Biggest Economies | 0 | - | 4.58 | 35,628 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 203,963 |
| Europe Map with Random Merged Countries | 0 | - | 4.96 | 270,063 |
| Save Europeans by Guessing Countries | 0 | - | 4.87 | 171,672 |
| History of Russia Quiz | 0 | - | 4.48 | 30,046 |
| Russia A-Z | 0 | - | 4.45 | 25,925 |
| History of Austria | 0 | - | 4.69 | 16,515 |
| Biggest French Empire Countries | 0 | - | 4.46 | 51,646 |
| Geography of the French Empire | 0 | - | 4.49 | 25,557 |
| The French Revolution | 0 | - | 4.45 | 22,087 |
| History of France Quiz | 0 | - | 4.55 | 39,932 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 22,484 |
| Mythology A-Z | 0 | - | 4.29 | 34,281 |
| Figures from Greek Mythology | 0 | - | 4.92 | 170,451 |
| History of Ireland Quiz | 0 | - | 4.44 | 19,097 |
| History of Italy | 0 | - | 4.49 | 29,966 |
| Communist Countries in History | 0 | - | 4.65 | 459,347 |
| Roman Names for Places | 0 | - | 4.66 | 42,016 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 67,190 |
| Byzantine History | 0 | - | 4.87 | 26,442 |
| History of The Netherlands | 0 | - | 4.43 | 15,895 |
| Modern Day Countries of the Portuguese Empire on a Map | 0 | - | 4.52 | 45,624 |
| Geography of the Spanish Empire | 0 | - | 4.48 | 35,397 |
| Countries that Beat Switzerland | 0 | - | 4.87 | 38,134 |
| British Cultural Symbols | 0 | - | 4.27 | 61,438 |
| Top 100 UK Baby Boys' Names in 1850 | 0 | - | 4.41 | 61,743 |
| Most-Visited Countries by the British | 0 | - | 4.65 | 61,647 |
| Countries that Beat the United Kingdom | 0 | - | 4.57 | 59,053 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 24,846 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.76 | 19,102 |
| Houses of British Monarchs | 0 | - | 4.50 | 52,611 |
| Medieval English History | 0 | - | 4.52 | 41,127 |
| British History Multiple Choice #1 | 0 | - | 4.47 | 51,907 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.56 | 13,856 |
| Scotland Trivia | 0 | - | 4.57 | 55,206 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,352,815 |
