| Prime Ministers of the UK | 0 | - | 4.96 | 434,735 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,798 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,655,370 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,022 |
| Name that Greek Letter | 0 | - | 4.94 | 321,714 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,677 |
| 101 Figures from Greek Mythology | 0 | - | 5.00 | 124,324 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,509 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,526 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,689 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,495 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,448 |
| Ancient Greek Words | 0 | - | 4.92 | 110,718 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,390 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,172 |
| Countries of the Popes | 0 | - | 4.79 | 127,241 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,493 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,319 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,278 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,055 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,326 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 143,213 |
| Monty Python Quotes | 0 | - | 4.88 | 42,325 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 423,808 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,051 |
| German History A-Z | 0 | - | 4.49 | 24,263 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,317 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 61,535 |
| U.S. Vice Presidents | 0 | - | 4.41 | 134,953 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 107,961 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,517 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,010 |
| Presidential Middle Names | 0 | - | 4.41 | 59,716 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,609 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,747 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 93,830 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,176 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,888 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,684 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,491 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,771 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,377 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,860 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,642 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,311 |
| Famous Ancient Romans | 0 | - | 4.69 | 85,029 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,227 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,614 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,627 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.91 | 37,127 |
| British History A-Z #1 | 0 | - | 4.45 | 45,876 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,326 |
| Pope Facts | 0 | - | 4.39 | 31,050 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,002 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,575 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,354 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,748 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,977 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,447 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,438 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,136 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,033 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,251 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,294 |
| All Countries that Once Bordered Germany | 0 | - | 4.33 | 74,599 |
| Countries of the German Empire | 0 | - | 4.51 | 37,666 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,222 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,126 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,548 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,759 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,917 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,874 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,533 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,377 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,168 |
| First Ladies of the United States | 0 | - | 4.28 | 85,248 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,113 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,303 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,003 |
| Add a Letter - Make a U.S. President | 0 | - | 4.61 | 23,838 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,283 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,690 |
| Every European Country Shape | 0 | - | 4.96 | 200,226 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,175 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,279 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,120 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,171 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,532 |
| Ireland Country Quiz | 0 | - | 4.69 | 133,900 |
| Roman History Vocabulary | 0 | - | 4.40 | 57,464 |
| The Life of Julius Caesar | 0 | - | 4.39 | 38,959 |
| Roman History by Picture | 0 | - | 4.46 | 26,346 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,384 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,919 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,027 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,149 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,522 |
| UK Immigration by Country | 0 | - | 4.94 | 139,675 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,206 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,296 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,148 |
| Name the English Monarchs | 0 | - | 4.92 | 498,037 |
| The Reign of Queen Elizabeth II | 0 | - | 4.35 | 35,680 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,293 |
| National Founders | 0 | - | 4.40 | 83,653 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 60,970 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,817 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,741 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,156 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,969 |
| Random European Flag to Country | 0 | - | 4.89 | 180,941 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,518 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,671 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,847 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,610 |
| Germany by Picture | 0 | - | 4.39 | 29,633 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,474 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,304 |
| The Trojan War | 0 | - | 4.83 | 39,441 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,560 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,336 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,059 |
| Roman Emperors | 0 | - | 4.95 | 118,509 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,947 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,868 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,358 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,859 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 63,518 |
| Do You Even Know Anything About Shakespeare? | 0 | - | 4.57 | 34,204 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,341 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,125 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,339 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 51,958 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 397,311 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 139,181 |
| 2025–2026 English Premier League Teams | 0 | - | 4.86 | 851,645 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,821 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,691 |
| Flags of WW1 | 0 | - | 4.60 | 37,952 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,956 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,260 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,462 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 303,405 |
| The George Washington Presidency | 0 | - | 4.03 | 14,476 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,662 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,502 |
| The John Adams Presidency | 0 | - | 4.12 | 8,677 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,871 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,683 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,219 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,609 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,433 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,774 |
| The American Revolution | 0 | - | 4.52 | 54,059 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,584 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,533 |
| Random European Countries on a Map | 0 | - | 4.97 | 282,002 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,054 |
| History of Russia Quiz | 0 | - | 4.49 | 31,795 |
| Arms Exports - Russia | 0 | - | 4.48 | 24,765 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,163 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,380 |
| History of Italy | 0 | - | 4.55 | 31,820 |
| Italy by Picture | 0 | - | 4.41 | 30,745 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,487 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,984 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,437 |
| UK Rivers Map Quiz | 0 | - | 4.54 | 30,270 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,422 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,941 |
| British Places A-Z | 0 | - | 4.29 | 79,613 |
| Name a James Bond Movie A-Z | 0 | - | 4.60 | 10,277 |
| Shakespearean Characters | 0 | - | 4.38 | 37,508 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,399 |
| Animals in British History | 0 | - | 4.44 | 25,871 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,600 |
| History of India | 0 | - | 4.61 | 21,288 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,557 |
| History of South Africa | 0 | - | 4.60 | 17,602 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,883 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,670 |
| U.S. President Scramble | 0 | - | 4.40 | 116,210 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,028 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,697 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 128,695 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,983 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,413 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,750 |
| Most Forested European Countries | 0 | - | 4.80 | 74,918 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,535 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,174 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 315,777 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,601 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,558 |
| History of Austria | 0 | - | 4.70 | 17,754 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,905 |
| Geography of the French Empire | 0 | - | 4.48 | 26,939 |
| France by Picture | 0 | - | 4.24 | 21,623 |
| The French Revolution | 0 | - | 4.46 | 23,786 |
| History of France | 0 | - | 4.59 | 56,083 |
