| Prime Ministers of the UK | 0 | - | 4.96 | 434,503 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,674 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,028 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,205 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,412 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,221 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,652,869 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,118 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,095 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,224 |
| Name the English Monarchs | 0 | - | 4.92 | 497,772 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,226 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,515 |
| The Trojan War | 0 | - | 4.83 | 39,422 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,728 |
| Name that Greek Letter | 0 | - | 4.94 | 321,602 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,500 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,935 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,034 |
| Roman Emperors | 0 | - | 4.95 | 118,427 |
| Monty Python Quotes | 0 | - | 4.88 | 42,320 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,199 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,535 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,627 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,756 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,503 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,487 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,112 |
| Countries of the Popes | 0 | - | 4.79 | 127,179 |
| National Founders | 0 | - | 4.40 | 83,644 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 423,587 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,434 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,881 |
| Paramount Leaders of China | 0 | - | 4.36 | 10,996 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,502 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,314 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,666 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,608 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,074 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,572 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,287 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,783 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,655 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,678 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,314 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,901 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,386 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,350 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,077 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 55,987 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,800 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,219 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,282 |
| Countries Bordering France | 0 | - | 4.83 | 398,689 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,963 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,513 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,305 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,058 |
| Political Movements by Country | 0 | - | 4.46 | 72,254 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,839 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,846 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,160 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,343 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,732 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,878 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,508 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,669 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,220 |
| Every European Country Shape | 0 | - | 4.96 | 200,092 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,184 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,130 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,942 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,651 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,507 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,753 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,511 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,788 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,246 |
| Counties of Ireland | 0 | - | 4.92 | 192,984 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,429 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,272 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,005 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,756 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,247 |
| UK Immigration by Country | 0 | - | 4.94 | 139,581 |
| Arthurian Legend | 0 | - | 4.33 | 25,049 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,098 |
| Top 100 UK Baby Boys' Names in 1850 | 0 | - | 4.42 | 69,303 |
| Most-Visited Countries by the British | 0 | - | 4.63 | 68,068 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 128,556 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,699 |
| 50 Busiest Air Routes from London | 0 | - | 4.86 | 95,747 |
| Scotland Trivia | 0 | - | 4.58 | 57,402 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,209 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,216 |
| Hindu Countries | 0 | - | 4.85 | 49,546 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 60,942 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,374 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,674 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,892 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,447 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,334 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,805 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,578 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,188 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,336 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,441 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,205 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 72,874 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,425 |
| Ireland Country Quiz | 0 | - | 4.69 | 133,862 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,857 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,527 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,658 |
| Roman Names for Places | 0 | - | 4.62 | 57,862 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,826 |
| Modern Day Countries of the Portuguese Empire on a Map | 0 | - | 4.56 | 51,240 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,654 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,018 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,448 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,818 |
| Countries that Beat the United Kingdom | 0 | - | 4.53 | 63,276 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 63,408 |
| British History A-Z #1 | 0 | - | 4.45 | 45,798 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,289 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,310 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,081 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 397,049 |
| Pope Facts | 0 | - | 4.39 | 31,033 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,312 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,928 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 39,968 |
| U.S. Vice Presidents | 0 | - | 4.41 | 134,886 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 107,922 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,452 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 92,986 |
| Presidential Middle Names | 0 | - | 4.41 | 59,688 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,716 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 93,799 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,732 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,161 |
| The American Revolution | 0 | - | 4.52 | 54,049 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,263 |
| Random European Flag to Country | 0 | - | 4.89 | 180,862 |
| History of Russia Quiz | 0 | - | 4.49 | 31,788 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,123 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,341 |
| All Countries that Once Bordered Germany | 0 | - | 4.33 | 74,581 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,981 |
| Olympian Gods Quiz | 0 | - | 4.96 | 495,834 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,420 |
| Ancient Greek Words | 0 | - | 4.92 | 110,652 |
| History of Italy | 0 | - | 4.55 | 31,811 |
| Italy by Picture | 0 | - | 4.41 | 30,728 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,353 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,115 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,477 |
| Countries Once Held by Sweden | 0 | - | 4.17 | 34,686 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,332 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,796 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,976 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,654 |
| UK Baby Girl Names by Decade | 0 | - | 4.36 | 159,155 |
| UK Baby Boy Names by Decade | 0 | - | 4.37 | 130,960 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,379 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,793 |
| Name a James Bond Movie A-Z | 0 | - | 4.60 | 10,265 |
| English Royal Consorts | 0 | - | 4.37 | 37,157 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,602 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 139,063 |
| 2025–2026 English Premier League Teams | 0 | - | 4.86 | 851,152 |
| Scotland A-Z | 0 | - | 4.73 | 41,031 |
| The Wales Quiz | 0 | - | 4.47 | 29,002 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,817 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,670 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,483 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 303,322 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,383 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,470 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,447 |
| Europe Map Quiz | 0 | - | 5.00 | 4,730,273 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,737 |
| Random European Countries on a Map | 0 | - | 4.97 | 281,913 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,348 |
| Arms Exports - Russia | 0 | - | 4.48 | 24,763 |
| German History A-Z | 0 | - | 4.49 | 24,213 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,294 |
| The Life of Julius Caesar | 0 | - | 4.39 | 38,949 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,685 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,430 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,144 |
| Shakespeare's Plays Quiz | 0 | - | 4.38 | 385,656 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,390 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.91 | 37,093 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,029 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,594 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,073 |
| The Vietnam War | 0 | - | 4.43 | 35,288 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,847 |
| Communist Countries in History | 0 | - | 4.63 | 492,410 |
