| Prime Ministers of the UK | 0 | - | 4.95 | 387,161 |
| Countries of the Popes | 0 | - | 4.84 | 113,394 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 63,833 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,226,196 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 592,021 |
| Biggest Trading Partners - Spain | 0 | - | 4.90 | 50,857 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.90 | 63,683 |
| Holy Roman Empire Countries | 0 | - | 4.58 | 42,271 |
| Name that Greek Letter | 0 | - | 4.94 | 298,571 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 149,878 |
| Ancient Greek Words | 0 | - | 4.91 | 99,552 |
| Biggest Roman Empire Countries | 0 | - | 4.88 | 83,018 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 102,369 |
| Name the Popes Quiz | 0 | - | 4.46 | 124,730 |
| Soviet Leaders 1917–1991 | 0 | - | 4.42 | 88,223 |
| Prime Ministers of Australia | 0 | - | 4.48 | 28,490 |
| Monty Python Quotes | 0 | - | 4.89 | 40,643 |
| Pope Facts | 0 | - | 4.41 | 28,460 |
| Canadian Prime Ministers Quiz | 0 | - | 4.65 | 50,620 |
| Biggest Cities in Germany | 0 | - | 4.95 | 267,855 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 129,098 |
| Country by Photo of its Leader | 0 | - | 4.78 | 116,740 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 79,241 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.64 | 21,149 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 404,561 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 49,720 |
| British History A-Z | 0 | - | 4.47 | 40,119 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.32 | 54,930 |
| English First Names of the Middle Ages | 0 | - | 4.41 | 45,993 |
| Paramount Leaders of China | 0 | - | 4.31 | 10,051 |
| U.S. Presidents by Picture | 0 | - | 4.85 | 398,665 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 357,074 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 100,610 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.58 | 46,786 |
| The Life of Julius Caesar | 0 | - | 4.46 | 32,353 |
| UK Cities Map Quiz | 0 | - | 4.95 | 438,047 |
| Counties of England Map Quiz | 0 | - | 4.97 | 289,996 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.59 | 25,049 |
| Prime Ministers of Israel | 0 | - | 4.10 | 16,379 |
| The Dictator Files: Chairman Mao | 0 | - | 4.32 | 18,705 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 224,253 |
| U.S. Vice Presidents | 0 | - | 4.42 | 121,980 |
| U.S. Presidential Trivia #1 | 0 | - | 4.52 | 98,635 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.57 | 83,211 |
| U.S. Presidential Trivia #2 | 0 | - | 4.51 | 45,413 |
| Assassinated U.S. Presidents | 0 | - | 4.54 | 80,996 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 33,809 |
| Name a Valid U.S. President #1 | 0 | - | 4.93 | 170,158 |
| Play-Doh Presidents | 0 | - | 5.00 | 76,140 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.92 | 51,754 |
| Countries of Europe After World War II | 0 | - | 4.99 | 173,232 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 141,688 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 135,784 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 64,504 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.94 | 51,102 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 60,288 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 47,508 |
| Countries of the Soviet Union | 0 | - | 4.98 | 186,139 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 75,313 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.32 | 40,217 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.42 | 24,288 |
| All Countries that Once Bordered Germany | 0 | - | 4.34 | 70,820 |
| German History A-Z | 0 | - | 4.17 | 13,513 |
| Famous Ancient Romans | 0 | - | 4.72 | 80,731 |
| Roman History Vocabulary | 0 | - | 4.43 | 55,496 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 95,387 |
| UK Immigration by Country | 0 | - | 4.94 | 127,345 |
| United Kingdom Country Quiz | 0 | - | 4.94 | 121,609 |
| British Monopoly Board - Map Quiz | 0 | - | 4.46 | 19,347 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.90 | 31,603 |
| English Monarchs Quiz | 0 | - | 4.91 | 454,459 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 86,155 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 95,247 |
| African Countries with the Most Christians | 0 | - | 4.92 | 68,455 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 68,131 |
| Most Forested European Countries | 0 | - | 4.82 | 69,294 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 181,758 |
| Germany Cities Map Quiz | 0 | - | 4.84 | 107,858 |
| States of the German Confederation in 1848 | 0 | - | 4.85 | 27,134 |
| Countries of the German Empire | 0 | - | 4.51 | 34,276 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.82 | 10,362 |
| Countries Closest to Iceland | 0 | - | 4.87 | 64,144 |
| Geography of the Spanish Empire | 0 | - | 4.48 | 35,482 |
| Countries that Visit the UK the Most | 0 | - | 4.85 | 64,212 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 91,353 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 56,079 |
| Do You Even Know Anything About Shakespeare? | 0 | - | 4.58 | 32,392 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 224,266 |
| British History Quiz for Dummies | 0 | - | 4.54 | 62,481 |
| The Reign of Queen Elizabeth II | 0 | - | 4.38 | 33,986 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 355,838 |
| Biggest Trading Partners – Australia | 0 | - | 4.88 | 48,779 |
| Governors Who Ran For President | 0 | - | 4.47 | 19,009 |
| U.S. Presidents by Event | 0 | - | 4.58 | 29,441 |
| First Ladies of the United States | 0 | - | 4.27 | 80,725 |
| Presidential Middle Names | 0 | - | 4.37 | 56,540 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.41 | 22,666 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 24,993 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 66,313 |
| U.S. Presidents Who Died in Office | 0 | - | 4.76 | 31,540 |
| Random U.S. Vice President to President | 0 | - | 4.55 | 28,367 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.63 | 14,168 |
| Add a Letter - Make a U.S. President | 0 | - | 4.66 | 22,253 |
| Deadliest U.S. Wars | 0 | - | 4.83 | 160,038 |
| Every European Country Shape | 0 | - | 4.95 | 173,713 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 73,006 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.72 | 54,439 |
| Top 10 Richest Countries in Europe | 0 | - | 4.88 | 137,493 |
| Biggest Trading Partners - European Union | 0 | - | 4.90 | 65,992 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 117,389 |
| Countries that Bordered the USSR | 0 | - | 4.94 | 154,499 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 90,664 |
| Biggest Cities in France - Extreme | 0 | - | 4.90 | 45,458 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 40,214 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 44,741 |
| Germany by Picture | 0 | - | 4.39 | 28,221 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.81 | 87,352 |
| Ireland Country Quiz | 0 | - | 4.71 | 126,488 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 72,443 |
| Roman Emperors | 0 | - | 4.96 | 97,890 |
| Roman History by Picture | 0 | - | 4.45 | 24,812 |
| National Founders | 0 | - | 4.39 | 80,220 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 37,815 |
| Which City In the United Kingdom? | 0 | - | 4.96 | 75,972 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 179,403 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 22,359 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.92 | 47,165 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.94 | 111,622 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 762,591 |
| Biggest Trading Partners - China | 0 | - | 4.96 | 70,948 |
| U.S. Presidential Running Mates | 0 | - | 4.39 | 26,166 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 12,949 |
| The John Adams Presidency | 0 | - | 4.10 | 8,050 |
| The Theodore Roosevelt Presidency | 0 | - | 4.33 | 7,191 |
| U.S. Vice Presidential Trivia | 0 | - | 4.31 | 11,636 |
| The American Revolution | 0 | - | 4.55 | 52,060 |
| Random European Flag to Country | 0 | - | 4.90 | 164,125 |
| Flags of Countries That Border France | 0 | - | 4.88 | 113,849 |
| Flags of Countries that Border Germany | 0 | - | 4.85 | 88,457 |
| Olympian Gods Quiz | 0 | - | 4.96 | 461,134 |
| Flags of WW1 | 0 | - | 4.70 | 33,109 |
| Geography of the Dutch Empire | 0 | - | 4.70 | 32,718 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 75,204 |
| Invasions of Great Britain | 0 | - | 4.49 | 56,101 |
| UK Rivers Map Quiz | 0 | - | 4.58 | 28,372 |
| British Places A-Z | 0 | - | 4.32 | 76,485 |
| Shakespeare's Plays Quiz | 0 | - | 4.40 | 353,698 |
| Shakespearean Characters | 0 | - | 4.40 | 36,151 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.35 | 25,989 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 81,028 |
| 10 Plagues of Egypt | 0 | - | 4.41 | 44,587 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 99,338 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 49,124 |
| All U.S. Supreme Court Justices | 0 | - | 4.49 | 27,463 |
| U.S. Bill of Rights | 0 | - | 4.53 | 31,218 |
| US Presidents - 1 Minute Sprint | 0 | - | 4.43 | 282,727 |
| The George Washington Presidency | 0 | - | 4.02 | 13,730 |
| U.S. President Scramble | 0 | - | 4.42 | 107,953 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.34 | 10,769 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.32 | 16,973 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.32 | 20,657 |
| Name a Valid U.S. President #2 | 0 | - | 4.52 | 62,311 |
| Category Elimination - U.S. States #1 | 0 | - | 4.90 | 197,657 |
| Europe Map Quiz | 0 | - | 5.00 | 4,352,185 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 491,924 |
| European Secessionist Movements on a Map | 0 | - | 4.51 | 31,894 |
| Random European Countries on a Map | 0 | - | 4.98 | 262,939 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 78,252 |
| Arms Exports - Russia | 0 | - | 4.47 | 23,566 |
| Country Quiz on a Map - Germany | 0 | - | 4.94 | 28,123 |
| Least Irish U.S. States | 0 | - | 4.47 | 16,972 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 113,604 |
| Communist Countries in History | 0 | - | 4.65 | 461,215 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 67,466 |
| Byzantine History | 0 | - | 4.87 | 26,594 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.27 | 73,745 |
| Netherlands by Picture | 0 | - | 4.19 | 18,237 |
| History of The Netherlands | 0 | - | 4.43 | 15,954 |
| The Vikings! | 0 | - | 4.45 | 27,311 |
| The Portuguese Empire | 0 | - | 4.54 | 11,416 |
| Spain by Picture | 0 | - | 4.20 | 13,630 |
| Arthurian Legend | 0 | - | 4.35 | 24,378 |
| Biggest British Empire Countries | 0 | - | 4.69 | 80,623 |
| Which Country of the United Kingdom? | 0 | - | 4.60 | 35,854 |
| Top 100 UK Baby Boys' Names in 1850 | 0 | - | 4.41 | 62,153 |
| Most-Visited Countries by the British | 0 | - | 4.66 | 62,012 |
| James Bond Movies | 0 | - | 4.70 | 145,780 |
| James Bond Trivia | 0 | - | 4.41 | 32,211 |
| Wives of King Henry VIII | 0 | - | 4.55 | 51,634 |
| Countries the UK Declared War On | 0 | - | 4.58 | 113,750 |
| Geography of the British Empire | 0 | - | 4.51 | 37,416 |
| Medieval English History | 0 | - | 4.52 | 41,258 |
| London by Picture | 0 | - | 4.30 | 23,254 |
| Scotland Trivia | 0 | - | 4.57 | 55,329 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,355,897 |
| Asia Map Quiz | 0 | - | 4.99 | 800,523 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 258,554 |
| History of Iran Quiz | 0 | - | 4.63 | 15,292 |
| Ottoman Empire Quiz | 0 | - | 4.42 | 15,876 |
| Vietnam War Countries | 0 | - | 4.81 | 87,444 |
