| Prime Ministers of the UK | 0 | - | 4.96 | 434,826 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,809 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,656,435 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,126 |
| Name that Greek Letter | 0 | - | 4.94 | 321,752 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,679 |
| 101 Figures from Greek Mythology | 0 | - | 5.00 | 124,367 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,513 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,538 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,689 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,510 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,458 |
| Ancient Greek Words | 0 | - | 4.92 | 110,731 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,402 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,192 |
| Countries of the Popes | 0 | - | 4.79 | 127,256 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,512 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,355 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,291 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,061 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,366 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 143,239 |
| Monty Python Quotes | 0 | - | 4.88 | 42,328 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 423,898 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,087 |
| German History A-Z | 0 | - | 4.49 | 24,296 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,322 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 61,553 |
| U.S. Vice Presidents | 0 | - | 4.41 | 134,988 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 107,995 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,551 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,033 |
| Presidential Middle Names | 0 | - | 4.41 | 59,724 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,654 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,763 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 93,849 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,183 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,932 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,699 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,543 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,794 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,406 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,883 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,650 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,313 |
| Famous Ancient Romans | 0 | - | 4.69 | 85,041 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,233 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,685 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,640 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.91 | 37,145 |
| British History A-Z #1 | 0 | - | 4.45 | 45,939 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,334 |
| Pope Facts | 0 | - | 4.39 | 31,052 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,004 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,579 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,380 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,758 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,001 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,461 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,468 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,155 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,053 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,258 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,300 |
| All Countries that Once Bordered Germany | 0 | - | 4.33 | 74,606 |
| Countries of the German Empire | 0 | - | 4.51 | 37,672 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,253 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,152 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,551 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,760 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,944 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,885 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,542 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,378 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,169 |
| First Ladies of the United States | 0 | - | 4.28 | 85,254 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,116 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,338 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,007 |
| Add a Letter - Make a U.S. President | 0 | - | 4.61 | 23,841 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,321 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,693 |
| Every European Country Shape | 0 | - | 4.96 | 200,251 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,188 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,306 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,128 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,192 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,541 |
| Ireland Country Quiz | 0 | - | 4.69 | 133,918 |
| Roman History Vocabulary | 0 | - | 4.40 | 57,467 |
| The Life of Julius Caesar | 0 | - | 4.39 | 38,961 |
| Roman History by Picture | 0 | - | 4.46 | 26,346 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,400 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,973 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,035 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,158 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,544 |
| UK Immigration by Country | 0 | - | 4.94 | 139,705 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,245 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,316 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,149 |
| Name the English Monarchs | 0 | - | 4.92 | 498,127 |
| The Reign of Queen Elizabeth II | 0 | - | 4.35 | 35,683 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,315 |
| National Founders | 0 | - | 4.40 | 83,659 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 60,972 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,818 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,771 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,163 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,994 |
| Random European Flag to Country | 0 | - | 4.89 | 180,967 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,539 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,716 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,855 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,622 |
| Germany by Picture | 0 | - | 4.39 | 29,635 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,486 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,470 |
| The Trojan War | 0 | - | 4.83 | 39,447 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,605 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,368 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,070 |
| Roman Emperors | 0 | - | 4.95 | 118,532 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,954 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,881 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,365 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,871 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 63,543 |
| Do You Even Know Anything About Shakespeare? | 0 | - | 4.57 | 34,210 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,368 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,135 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,341 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 51,966 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 397,374 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 139,211 |
| 2025–2026 English Premier League Teams | 0 | - | 4.86 | 851,809 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,822 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,695 |
| Flags of WW1 | 0 | - | 4.60 | 37,963 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,968 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,262 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,463 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 303,430 |
| The George Washington Presidency | 0 | - | 4.03 | 14,477 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,663 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,510 |
| The John Adams Presidency | 0 | - | 4.12 | 8,680 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,873 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,685 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,221 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,611 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,450 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,777 |
| The American Revolution | 0 | - | 4.52 | 54,064 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,625 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,575 |
| Random European Countries on a Map | 0 | - | 4.97 | 282,050 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,078 |
| History of Russia Quiz | 0 | - | 4.49 | 31,798 |
| Arms Exports - Russia | 0 | - | 4.48 | 24,766 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,187 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,389 |
| History of Italy | 0 | - | 4.55 | 31,828 |
| Italy by Picture | 0 | - | 4.41 | 30,748 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,491 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,989 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,496 |
| UK Rivers Map Quiz | 0 | - | 4.54 | 30,270 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,495 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,958 |
| British Places A-Z | 0 | - | 4.29 | 79,617 |
| Name a James Bond Movie A-Z | 0 | - | 4.60 | 10,279 |
| Shakespearean Characters | 0 | - | 4.38 | 37,510 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,400 |
| Animals in British History | 0 | - | 4.44 | 25,876 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,600 |
| History of India | 0 | - | 4.61 | 21,291 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,603 |
| History of South Africa | 0 | - | 4.60 | 17,607 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,885 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,670 |
| U.S. President Scramble | 0 | - | 4.40 | 116,225 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,033 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,704 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 128,705 |
| Europe Map Quiz | 0 | - | 5.00 | 4,732,584 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,478 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,752 |
| Most Forested European Countries | 0 | - | 4.80 | 74,928 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,539 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,193 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 315,817 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,655 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,567 |
| History of Austria | 0 | - | 4.70 | 17,759 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,913 |
| Geography of the French Empire | 0 | - | 4.48 | 26,941 |
| France by Picture | 0 | - | 4.24 | 21,623 |
| The French Revolution | 0 | - | 4.46 | 23,790 |
| History of France | 0 | - | 4.59 | 56,105 |
