| Prime Ministers of the UK | 0 | - | 4.96 | 418,716 |
| Canadian Prime Ministers Quiz | 0 | - | 4.63 | 54,877 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 68,545 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 52,691 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 76,874 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 192,149 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 92,313 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 111,331 |
| Prime Ministers of Australia | 0 | - | 4.49 | 30,643 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,502,102 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 144,886 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 70,067 |
| Country by Photo of its Leader | 0 | - | 4.79 | 120,706 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 620,956 |
| Largest Nordic Cities on a Map | 0 | - | 4.83 | 34,774 |
| Monty Python Quotes | 0 | - | 4.88 | 41,713 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 27,659 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.43 | 26,025 |
| Name that Greek Letter | 0 | - | 4.93 | 313,502 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 117,064 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 39,904 |
| Name the Popes Quiz | 0 | - | 4.47 | 133,436 |
| Countries of the Popes | 0 | - | 4.80 | 123,911 |
| National Founders | 0 | - | 4.40 | 82,860 |
| U.S. Presidents by Picture | 0 | - | 4.86 | 414,165 |
| Neutral European Countries of WWII | 0 | - | 4.93 | 156,787 |
| Ancient Greek Words | 0 | - | 4.92 | 106,715 |
| Biggest Roman Empire Countries | 0 | - | 4.89 | 99,379 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.95 | 186,340 |
| Paramount Leaders of China | 0 | - | 4.35 | 10,665 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 372,251 |
| Name a Valid U.S. President #1 | 0 | - | 4.88 | 183,043 |
| Play-Doh Presidents | 0 | - | 5.00 | 79,708 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.94 | 61,879 |
| Countries of Europe After World War II | 0 | - | 4.99 | 181,766 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 150,540 |
| Countries of the Soviet Union | 0 | - | 4.98 | 190,903 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 53,493 |
| UK Cities Map Quiz | 0 | - | 4.95 | 454,049 |
| The Dictator Files: Chairman Mao | 0 | - | 4.33 | 20,184 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 101,903 |
| African Countries with the Most Christians | 0 | - | 4.93 | 72,726 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 117,113 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 233,256 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 71,104 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 144,373 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 71,505 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.94 | 58,967 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 66,640 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 53,065 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 78,748 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 78,372 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.35 | 47,489 |
| States of the German Confederation in 1848 | 0 | - | 4.86 | 29,893 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.64 | 22,819 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 103,262 |
| UK Immigration by Country | 0 | - | 4.94 | 135,436 |
| United Kingdom Country Quiz | 0 | - | 4.95 | 132,161 |
| Counties of England Map Quiz | 0 | - | 4.97 | 299,961 |
| British Monopoly Board - Map Quiz | 0 | - | 4.46 | 19,858 |
| Asian Countries with the Most Christians | 0 | - | 4.87 | 92,968 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 110,180 |
| Prime Ministers of Israel | 0 | - | 4.02 | 17,348 |
| Political Movements by Country | 0 | - | 4.44 | 71,114 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 73,391 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 78,756 |
| All U.S. Supreme Court Justices | 0 | - | 4.51 | 28,378 |
| U.S. Bill of Rights | 0 | - | 4.53 | 31,942 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.44 | 11,268 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 184,847 |
| Every European Country Shape | 0 | - | 4.95 | 183,022 |
| Most Guessed European Capitals | 0 | - | 4.89 | 99,837 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.70 | 56,844 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 84,733 |
| Ireland Country Quiz | 0 | - | 4.64 | 131,211 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,100 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 81,130 |
| Geography of the Spanish Empire | 0 | - | 4.48 | 36,483 |
| Countries that Visit the UK the Most | 0 | - | 4.86 | 70,676 |
| English Monarchs Quiz | 0 | - | 4.91 | 481,075 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.34 | 59,250 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 382,898 |
| Countries with the Most Hindus | 0 | - | 4.90 | 119,859 |
| Hindu Countries | 0 | - | 4.85 | 47,370 |
| Biggest Trading Partners – Australia | 0 | - | 4.92 | 59,026 |
| U.S. Presidential Trivia #1 | 0 | - | 4.47 | 104,921 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.57 | 90,111 |
| U.S. Presidential Trivia #2 | 0 | - | 4.48 | 50,318 |
| Assassinated U.S. Presidents | 0 | - | 4.61 | 89,519 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 36,589 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 89,391 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 126,537 |
| Random European Flag to Country | 0 | - | 4.89 | 174,834 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 160,968 |
| Biggest Trading Partners - Russia | 0 | - | 4.54 | 35,654 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 98,290 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 52,444 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 44,484 |
| The Reign of Napoleon | 0 | - | 4.54 | 37,809 |
| Biggest Cities in Germany | 0 | - | 4.95 | 282,719 |
| Germany A-Z | 0 | - | 4.56 | 60,937 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 91,277 |
| Country Quiz on a Map - Germany | 0 | - | 4.94 | 32,318 |
| Holy Roman Empire Countries | 0 | - | 4.78 | 54,113 |
| The Trojan War | 0 | - | 4.81 | 38,245 |
| Famous Ancient Romans | 0 | - | 4.68 | 83,399 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 48,339 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.84 | 104,536 |
| Italy A-Z | 0 | - | 4.47 | 42,777 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.86 | 87,677 |
| Ancient Roman Trivia #1 | 0 | - | 4.83 | 81,281 |
| Roman Emperors | 0 | - | 4.96 | 111,059 |
| The Life of Julius Caesar | 0 | - | 4.47 | 33,284 |
| Countries Closest to Iceland | 0 | - | 4.88 | 69,537 |
| Countries that Beat Iceland | 0 | - | 4.81 | 40,757 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 95,464 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 60,746 |
| Middle Earth Geography | 0 | - | 4.56 | 38,768 |
| Lord of the Rings Trivia | 0 | - | 4.52 | 79,054 |
| Members of the Fellowship of the Ring | 0 | - | 4.74 | 44,787 |
| Commonwealth of Nations Countries | 0 | - | 4.93 | 231,921 |
| British History A-Z | 0 | - | 4.42 | 42,539 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 58,853 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.89 | 50,291 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.91 | 132,474 |
| Scotland A-Z | 0 | - | 4.74 | 39,946 |
| Pope Facts | 0 | - | 4.39 | 30,336 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 73,608 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 52,346 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 38,840 |
| US Presidents - 1 Minute Sprint | 0 | - | 4.41 | 296,670 |
| U.S. Presidents Who Died in Office | 0 | - | 4.78 | 33,700 |
| Name a Valid U.S. President #2 | 0 | - | 4.53 | 67,105 |
| The American Revolution | 0 | - | 4.52 | 53,395 |
| Category Elimination - U.S. States #1 | 0 | - | 4.90 | 210,897 |
| Category Elimination - U.S. States #2 | 0 | - | 4.81 | 126,439 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 513,974 |
| Random European Countries on a Map | 0 | - | 4.97 | 274,813 |
| Flags of Countries That Border France | 0 | - | 4.88 | 119,232 |
| Flags of Countries that Border Germany | 0 | - | 4.85 | 93,658 |
| All Countries that Once Bordered Germany | 0 | - | 4.34 | 73,382 |
| Olympian Gods Quiz | 0 | - | 4.96 | 474,405 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 103,926 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 421,606 |
| Geography of the Dutch Empire | 0 | - | 4.68 | 33,798 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 76,406 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 105,129 |
| Invasions of Great Britain | 0 | - | 4.51 | 58,351 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 91,283 |
| Name a James Bond Movie A-Z | 0 | - | 4.71 | 9,676 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.91 | 35,136 |
| Animals in British History | 0 | - | 4.43 | 25,419 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,073 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 822,382 |
| The Vietnam War | 0 | - | 4.43 | 34,515 |
| History of India | 0 | - | 4.60 | 20,742 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 260,329 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 98,078 |
| History of South Africa | 0 | - | 4.60 | 17,286 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.13 | 25,787 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,244 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.20 | 10,596 |
| U.S. Vice Presidents | 0 | - | 4.39 | 130,487 |
| Governors Who Ran For President | 0 | - | 4.47 | 19,767 |
| U.S. Presidents by Event | 0 | - | 4.57 | 31,169 |
| First Ladies of the United States | 0 | - | 4.27 | 83,305 |
| Presidential Middle Names | 0 | - | 4.40 | 58,439 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,429 |
| The Abraham Lincoln Presidency | 0 | - | 4.51 | 25,737 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 73,698 |
| Random U.S. Vice President to President | 0 | - | 4.43 | 29,859 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.63 | 15,373 |
| Add a Letter - Make a U.S. President | 0 | - | 4.61 | 23,339 |
| Shortest U.S. Presidential Terms | 0 | - | 4.79 | 9,519 |
| Europe Map Quiz | 0 | - | 5.00 | 4,604,219 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 49,436 |
| European Secessionist Movements on a Map | 0 | - | 4.52 | 33,789 |
| Most Forested European Countries | 0 | - | 4.78 | 73,154 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,129 |
| European Cities with the Biggest Economies | 0 | - | 4.58 | 37,336 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 212,127 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 307,076 |
| Save Europeans by Guessing Countries | 0 | - | 4.85 | 197,306 |
| History of Russia Quiz | 0 | - | 4.48 | 31,298 |
| Arms Exports - Russia | 0 | - | 4.45 | 24,395 |
| Countries Invaded by the USSR | 0 | - | 4.30 | 91,778 |
| History of Austria | 0 | - | 4.69 | 17,316 |
| Biggest French Empire Countries | 0 | - | 4.50 | 63,958 |
| Geography of the French Empire | 0 | - | 4.51 | 26,369 |
| The French Revolution | 0 | - | 4.45 | 23,055 |
| History of France Quiz | 0 | - | 4.56 | 41,982 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.42 | 22,983 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 25,398 |
| Mythology A-Z | 0 | - | 4.30 | 35,978 |
| Figures from Greek Mythology | 0 | - | 4.90 | 177,372 |
| Least Irish U.S. States | 0 | - | 4.47 | 17,768 |
| History of Ireland Quiz | 0 | - | 4.44 | 20,444 |
| History of Italy | 0 | - | 4.54 | 31,233 |
| Roman History Vocabulary | 0 | - | 4.40 | 56,814 |
| Roman History by Picture | 0 | - | 4.46 | 25,772 |
