| Prime Ministers of the UK | 0 | - | 4.95 | 385,295 |
| Countries of the Popes | 0 | - | 4.85 | 112,375 |
| Biggest Trading Partners - Spain | 0 | - | 4.90 | 50,712 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,208,488 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.90 | 63,018 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 63,472 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 94,840 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 101,673 |
| Name the Popes Quiz | 0 | - | 4.46 | 123,501 |
| Soviet Leaders 1917–1991 | 0 | - | 4.42 | 87,971 |
| Prime Ministers of Australia | 0 | - | 4.48 | 28,281 |
| Country by Photo of its Leader | 0 | - | 4.78 | 116,304 |
| Monty Python Quotes | 0 | - | 4.89 | 40,572 |
| The Dictator Files: Chairman Mao | 0 | - | 4.32 | 18,651 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 589,945 |
| Pope Facts | 0 | - | 4.41 | 28,233 |
| Canadian Prime Ministers Quiz | 0 | - | 4.64 | 50,323 |
| Name that Greek Letter | 0 | - | 4.94 | 297,783 |
| Paramount Leaders of China | 0 | - | 4.31 | 10,018 |
| U.S. Presidents by Picture | 0 | - | 4.85 | 397,307 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 149,336 |
| Ancient Greek Words | 0 | - | 4.90 | 98,797 |
| Biggest Roman Empire Countries | 0 | - | 4.88 | 82,696 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 402,991 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 49,352 |
| UK Cities Map Quiz | 0 | - | 4.95 | 436,769 |
| U.S. Vice Presidents | 0 | - | 4.43 | 121,191 |
| U.S. Presidential Trivia #1 | 0 | - | 4.51 | 97,942 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.57 | 82,648 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 355,754 |
| U.S. Presidential Trivia #2 | 0 | - | 4.52 | 40,290 |
| Assassinated U.S. Presidents | 0 | - | 4.54 | 80,705 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 33,705 |
| Name a Valid U.S. President #1 | 0 | - | 4.93 | 169,249 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.92 | 51,118 |
| Countries of Europe After World War II | 0 | - | 4.98 | 172,550 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 141,048 |
| Countries of the Soviet Union | 0 | - | 4.98 | 185,791 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.42 | 24,209 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.92 | 100,402 |
| Spain Cities Map Quiz | 0 | - | 4.86 | 87,258 |
| UK Immigration by Country | 0 | - | 4.94 | 126,561 |
| United Kingdom Country Quiz | 0 | - | 4.94 | 120,686 |
| Counties of England Map Quiz | 0 | - | 4.97 | 289,009 |
| British Monopoly Board - Map Quiz | 0 | - | 4.46 | 19,309 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.90 | 31,357 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.58 | 24,803 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 85,686 |
| Prime Ministers of Israel | 0 | - | 4.10 | 16,301 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 94,767 |
| African Countries with the Most Christians | 0 | - | 4.92 | 68,148 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 223,773 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 67,985 |
| Most Forested European Countries | 0 | - | 4.82 | 68,965 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 180,985 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 135,235 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 64,060 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.94 | 50,610 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 59,815 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 75,063 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.32 | 40,119 |
| States of the German Confederation in 1848 | 0 | - | 4.84 | 26,925 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 128,369 |
| Biggest Cities in Spain | 0 | - | 4.55 | 155,497 |
| Geography of the Spanish Empire | 0 | - | 4.48 | 35,401 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 36,817 |
| World Capitals Closest to Madrid | 0 | - | 4.49 | 41,519 |
| Countries that Visit the UK the Most | 0 | - | 4.85 | 63,707 |
| English Monarchs Quiz | 0 | - | 4.91 | 451,937 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.32 | 54,596 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 353,246 |
| Governors Who Ran For President | 0 | - | 4.47 | 18,968 |
| U.S. Presidents by Event | 0 | - | 4.58 | 29,321 |
| U.S. Presidential Running Mates | 0 | - | 4.41 | 26,020 |
| First Ladies of the United States | 0 | - | 4.27 | 80,466 |
| Presidential Middle Names | 0 | - | 4.37 | 56,404 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 24,940 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 65,725 |
| Random U.S. Vice President to President | 0 | - | 4.55 | 28,049 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.63 | 14,077 |
| Add a Letter - Make a U.S. President | 0 | - | 4.66 | 22,150 |
| Deadliest U.S. Wars | 0 | - | 4.83 | 159,439 |
| Every European Country Shape | 0 | - | 4.95 | 173,030 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.72 | 54,260 |
| Top 10 Richest Countries in Europe | 0 | - | 4.88 | 136,898 |
| Biggest Trading Partners - European Union | 0 | - | 4.90 | 65,665 |
| Ireland Country Quiz | 0 | - | 4.71 | 126,069 |
| National Founders | 0 | - | 4.39 | 80,040 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.81 | 10,188 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 37,663 |
| Countries Closest to Iceland | 0 | - | 4.87 | 63,689 |
| Spain by Picture | 0 | - | 4.20 | 13,574 |
| The United States... or the United Kingdom? | 0 | - | 4.89 | 91,030 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 55,664 |
| Do You Even Know Anything About Shakespeare? | 0 | - | 4.58 | 32,244 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 223,665 |
| British History A-Z | 0 | - | 4.47 | 39,910 |
| English First Names of the Middle Ages | 0 | - | 4.41 | 45,816 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.92 | 46,932 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.94 | 110,514 |
| Biggest Trading Partners - China | 0 | - | 4.96 | 70,732 |
| Biggest Trading Partners – Australia | 0 | - | 4.89 | 48,199 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.41 | 22,621 |
| U.S. Presidents Who Died in Office | 0 | - | 4.75 | 31,420 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 72,503 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 117,033 |
| Random European Flag to Country | 0 | - | 4.90 | 163,299 |
| Countries that Bordered the USSR | 0 | - | 4.94 | 154,128 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 90,121 |
| Biggest Cities in France - Extreme | 0 | - | 4.90 | 44,966 |
| Country Quiz on a Map - France | 0 | - | 4.97 | 39,822 |
| Biggest Cities in Germany | 0 | - | 4.95 | 266,547 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 78,357 |
| Holy Roman Empire Countries | 0 | - | 4.58 | 42,197 |
| Famous Ancient Romans | 0 | - | 4.72 | 74,738 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.57 | 46,629 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.81 | 86,726 |
| Roman History Vocabulary | 0 | - | 4.43 | 55,357 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 72,175 |
| Roman Emperors | 0 | - | 4.95 | 97,076 |
| The Life of Julius Caesar | 0 | - | 4.46 | 32,281 |
| Geography of the Dutch Empire | 0 | - | 4.70 | 32,616 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 75,097 |
| Invasions of Great Britain | 0 | - | 4.49 | 55,948 |
| Which City In the United Kingdom? | 0 | - | 4.96 | 75,630 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 178,825 |
| Shakespeare's Plays Quiz | 0 | - | 4.41 | 351,942 |
| Shakespearean Characters | 0 | - | 4.40 | 36,041 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 80,929 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 757,988 |
| 10 Plagues of Egypt | 0 | - | 4.41 | 44,545 |
| Colonies of Africa with a Map | 0 | - | 4.80 | 48,878 |
| U.S. Bill of Rights | 0 | - | 4.53 | 31,167 |
| US Presidents - 1 Minute Sprint | 0 | - | 4.43 | 281,608 |
| The George Washington Presidency | 0 | - | 4.02 | 13,700 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 12,929 |
| The John Adams Presidency | 0 | - | 4.10 | 8,030 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.34 | 10,732 |
| The Theodore Roosevelt Presidency | 0 | - | 4.33 | 7,173 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.32 | 16,911 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.32 | 20,619 |
| Name a Valid U.S. President #2 | 0 | - | 4.52 | 61,970 |
| U.S. Vice Presidential Trivia | 0 | - | 4.31 | 11,563 |
| The American Revolution | 0 | - | 4.55 | 51,937 |
| Category Elimination - U.S. States #1 | 0 | - | 4.90 | 196,853 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 489,729 |
| Random European Countries on a Map | 0 | - | 4.98 | 262,028 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 77,927 |
| Flags of Countries That Border France | 0 | - | 4.88 | 113,479 |
| Flags of Countries that Border Germany | 0 | - | 4.85 | 88,047 |
| All Countries that Once Bordered Germany | 0 | - | 4.34 | 70,583 |
| Countries of the German Empire | 0 | - | 4.51 | 34,101 |
| Country Quiz on a Map - Germany | 0 | - | 4.93 | 27,697 |
| Olympian Gods Quiz | 0 | - | 4.96 | 460,007 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 112,959 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.26 | 73,182 |
| The Vikings! | 0 | - | 4.45 | 27,249 |
| The Portuguese Empire | 0 | - | 4.54 | 11,389 |
| Arthurian Legend | 0 | - | 4.35 | 24,342 |
| Biggest British Empire Countries | 0 | - | 4.70 | 80,248 |
| UK Rivers Map Quiz | 0 | - | 4.60 | 28,273 |
| Which Country of the United Kingdom? | 0 | - | 4.60 | 35,653 |
| British Places A-Z | 0 | - | 4.32 | 76,312 |
| James Bond Movies | 0 | - | 4.70 | 145,139 |
| James Bond Trivia | 0 | - | 4.41 | 32,129 |
| Wives of King Henry VIII | 0 | - | 4.55 | 51,332 |
| Countries the UK Declared War On | 0 | - | 4.58 | 113,383 |
| Geography of the British Empire | 0 | - | 4.51 | 37,328 |
| The Reign of Queen Elizabeth II | 0 | - | 4.38 | 33,908 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.34 | 25,797 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 257,702 |
| History of Iran Quiz | 0 | - | 4.63 | 15,224 |
| History of China | 0 | - | 4.38 | 51,039 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 99,081 |
| History of India | 0 | - | 4.52 | 19,436 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 247,501 |
| History of South Africa | 0 | - | 4.59 | 16,668 |
| All U.S. Supreme Court Justices | 0 | - | 4.49 | 27,409 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 123,066 |
| Europe Map Quiz | 0 | - | 5.00 | 4,335,344 |
| European Secessionist Movements on a Map | 0 | - | 4.51 | 31,750 |
| European Countries with NO Wolves | 0 | - | 4.63 | 64,013 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 203,998 |
| Europe Map with Random Merged Countries | 0 | - | 4.96 | 270,105 |
| Save Europeans by Guessing Countries | 0 | - | 4.87 | 171,731 |
| History of Russia Quiz | 0 | - | 4.48 | 30,052 |
| Arms Exports - Russia | 0 | - | 4.47 | 23,507 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 88,102 |
| History of Austria | 0 | - | 4.69 | 16,516 |
| Biggest French Empire Countries | 0 | - | 4.46 | 51,650 |
| Geography of the French Empire | 0 | - | 4.49 | 25,564 |
| The French Revolution | 0 | - | 4.45 | 22,089 |
| History of France Quiz | 0 | - | 4.55 | 39,938 |
| Figures from Greek Mythology | 0 | - | 4.92 | 170,462 |
| Least Irish U.S. States | 0 | - | 4.47 | 16,900 |
| History of Ireland Quiz | 0 | - | 4.44 | 19,105 |
| History of Italy | 0 | - | 4.49 | 29,971 |
| Roman History by Picture | 0 | - | 4.44 | 24,711 |
| Communist Countries in History | 0 | - | 4.65 | 459,423 |
| Political Movements by Country | 0 | - | 4.46 | 68,921 |
