| Prime Ministers of the UK | 0 | - | 4.96 | 434,591 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,766 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,653,812 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,826 |
| Name that Greek Letter | 0 | - | 4.94 | 321,638 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,670 |
| 101 Figures from Greek Mythology | 0 | - | 5.00 | 124,277 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,505 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,504 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,675 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,455 |
| Ancient Greek Words | 0 | - | 4.92 | 110,685 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,366 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,424 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,456 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,258 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,142 |
| Countries of the Popes | 0 | - | 4.79 | 127,202 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,036 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,239 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 143,157 |
| Monty Python Quotes | 0 | - | 4.88 | 42,322 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,243 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,009 |
| German History A-Z | 0 | - | 4.49 | 24,217 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,312 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 423,693 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,525 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,301 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,211 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,503 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,614 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.91 | 37,105 |
| British History A-Z #1 | 0 | - | 4.45 | 45,804 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 61,510 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,318 |
| Paramount Leaders of China | 0 | - | 4.36 | 10,998 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,314 |
| U.S. Vice Presidents | 0 | - | 4.41 | 134,923 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 107,941 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,476 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 92,997 |
| Presidential Middle Names | 0 | - | 4.41 | 59,699 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,729 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 93,812 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,739 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,166 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,823 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,663 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,400 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,721 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,344 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,933 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,409 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,396 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,104 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,010 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,823 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,230 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,287 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,634 |
| All Countries that Once Bordered Germany | 0 | - | 4.33 | 74,589 |
| Famous Ancient Romans | 0 | - | 4.69 | 85,016 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,111 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,072 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,539 |
| Pope Facts | 0 | - | 4.39 | 31,038 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,574 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,878 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,856 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,524 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,242 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,137 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,517 |
| Countries of the German Empire | 0 | - | 4.51 | 37,658 |
| The Life of Julius Caesar | 0 | - | 4.39 | 38,954 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,832 |
| UK Immigration by Country | 0 | - | 4.94 | 139,617 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,125 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,146 |
| Name the English Monarchs | 0 | - | 4.92 | 497,844 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,243 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 60,953 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,375 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,163 |
| First Ladies of the United States | 0 | - | 4.28 | 85,242 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,814 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,110 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,271 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 15,998 |
| Add a Letter - Make a U.S. President | 0 | - | 4.61 | 23,832 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,238 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,684 |
| Every European Country Shape | 0 | - | 4.96 | 200,136 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,699 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,141 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,140 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,104 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,924 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,475 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,593 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,819 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,588 |
| Germany by Picture | 0 | - | 4.39 | 29,629 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,456 |
| The Trojan War | 0 | - | 4.83 | 39,425 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,523 |
| Ireland Country Quiz | 0 | - | 4.69 | 133,871 |
| Roman History Vocabulary | 0 | - | 4.40 | 57,458 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,041 |
| Roman Emperors | 0 | - | 4.95 | 118,469 |
| Roman History by Picture | 0 | - | 4.46 | 26,340 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,365 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,842 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,021 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,487 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,246 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,832 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 63,455 |
| Do You Even Know Anything About Shakespeare? | 0 | - | 4.57 | 34,199 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,254 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,100 |
| The Reign of Queen Elizabeth II | 0 | - | 4.35 | 35,674 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 397,151 |
| National Founders | 0 | - | 4.40 | 83,646 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,460 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,661 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,497 |
| The John Adams Presidency | 0 | - | 4.12 | 8,676 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,682 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,771 |
| The American Revolution | 0 | - | 4.52 | 54,053 |
| Random European Flag to Country | 0 | - | 4.89 | 180,877 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,136 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,361 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,053 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,292 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,940 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,341 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,328 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,903 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,338 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 51,942 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 139,103 |
| 2025–2026 English Premier League Teams | 0 | - | 4.86 | 851,331 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,819 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,679 |
| Flags of WW1 | 0 | - | 4.60 | 37,934 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,940 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,879 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,669 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 303,349 |
| The George Washington Presidency | 0 | - | 4.03 | 14,475 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,869 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,208 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,609 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,404 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,522 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,489 |
| Europe Map Quiz | 0 | - | 5.00 | 4,730,955 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,316 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,743 |
| Random European Countries on a Map | 0 | - | 4.97 | 281,956 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,030 |
| History of Russia Quiz | 0 | - | 4.49 | 31,789 |
| Arms Exports - Russia | 0 | - | 4.48 | 24,763 |
| Countries that Beat Ireland | 0 | - | 4.39 | 34,094 |
| History of Italy | 0 | - | 4.55 | 31,813 |
| Italy by Picture | 0 | - | 4.41 | 30,736 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,715 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,479 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,979 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,384 |
| UK Rivers Map Quiz | 0 | - | 4.54 | 30,266 |
| British Places A-Z | 0 | - | 4.29 | 79,604 |
| Name a James Bond Movie A-Z | 0 | - | 4.60 | 10,270 |
| Shakespeare's Plays Quiz | 0 | - | 4.38 | 385,691 |
| Shakespearean Characters | 0 | - | 4.38 | 37,502 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,392 |
| Animals in British History | 0 | - | 4.44 | 25,869 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,033 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,595 |
| 10 Plagues of Egypt | 0 | - | 4.39 | 51,815 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,859 |
| Communist Countries in History | 0 | - | 4.63 | 492,482 |
| History of India | 0 | - | 4.61 | 21,282 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.68 | 55,169 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,177 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,514 |
| History of South Africa | 0 | - | 4.60 | 17,601 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,254 |
| Australian Capitals | 0 | - | 4.92 | 62,593 |
| History of Mexico | 0 | - | 4.58 | 15,230 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,652 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,733 |
| Win the U.S. Presidential Election | 0 | - | 4.80 | 618,369 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,361 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,087 |
| People in Pictures with Ronald Reagan | 0 | - | 4.35 | 40,446 |
| U.S. President Scramble | 0 | - | 4.40 | 116,192 |
