| Prime Ministers of the UK | 0 | - | 4.96 | 422,486 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 69,089 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,538,043 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 624,639 |
| Holy Roman Empire Countries | 0 | - | 4.78 | 54,238 |
| Name that Greek Letter | 0 | - | 4.93 | 315,141 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 118,537 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 52,899 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 77,493 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 157,606 |
| Ancient Greek Words | 0 | - | 4.92 | 107,497 |
| Biggest Roman Empire Countries | 0 | - | 4.89 | 99,807 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 92,824 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 69,016 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 112,342 |
| Name the Popes Quiz | 0 | - | 4.47 | 134,268 |
| Countries of the Popes | 0 | - | 4.80 | 124,675 |
| Prime Ministers of Australia | 0 | - | 4.49 | 30,923 |
| Canadian Prime Ministers Quiz | 0 | - | 4.63 | 55,440 |
| Biggest Cities in Germany | 0 | - | 4.95 | 284,599 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 139,120 |
| Monty Python Quotes | 0 | - | 4.88 | 41,826 |
| Country by Photo of its Leader | 0 | - | 4.79 | 121,077 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 92,528 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.64 | 22,925 |
| U.S. Presidents by Picture | 0 | - | 4.86 | 416,312 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 373,841 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 104,187 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 48,533 |
| The Life of Julius Caesar | 0 | - | 4.48 | 33,380 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 423,394 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 53,938 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.91 | 35,517 |
| British History A-Z | 0 | - | 4.42 | 42,790 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.34 | 59,750 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 59,182 |
| Paramount Leaders of China | 0 | - | 4.35 | 10,752 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 234,641 |
| U.S. Presidential Trivia #1 | 0 | - | 4.47 | 105,563 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.57 | 90,809 |
| U.S. Presidential Trivia #2 | 0 | - | 4.48 | 50,896 |
| Assassinated U.S. Presidents | 0 | - | 4.61 | 90,583 |
| U.S. Presidents Who Died in Office | 0 | - | 4.78 | 33,955 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 37,037 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 184,546 |
| Play-Doh Presidents | 0 | - | 5.00 | 80,179 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.94 | 63,150 |
| Countries of Europe After World War II | 0 | - | 4.99 | 182,960 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 151,501 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 145,345 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 72,428 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.94 | 59,966 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 67,405 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 53,824 |
| Countries of the Soviet Union | 0 | - | 4.98 | 191,480 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 78,752 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.35 | 47,665 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.43 | 26,133 |
| All Countries that Once Bordered Germany | 0 | - | 4.33 | 73,655 |
| German History A-Z | 0 | - | 4.21 | 14,169 |
| Famous Ancient Romans | 0 | - | 4.69 | 83,819 |
| UK Cities Map Quiz | 0 | - | 4.95 | 456,039 |
| Counties of England Map Quiz | 0 | - | 4.97 | 301,506 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 27,867 |
| Pope Facts | 0 | - | 4.39 | 30,502 |
| Prime Ministers of Israel | 0 | - | 4.02 | 17,465 |
| The Dictator Files: Chairman Mao | 0 | - | 4.33 | 20,268 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 102,749 |
| African Countries with the Most Christians | 0 | - | 4.93 | 73,219 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 71,410 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 193,307 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 122,349 |
| States of the German Confederation in 1848 | 0 | - | 4.88 | 30,213 |
| Countries of the German Empire | 0 | - | 4.51 | 36,814 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 111,781 |
| UK Immigration by Country | 0 | - | 4.93 | 136,397 |
| United Kingdom Country Quiz | 0 | - | 4.95 | 133,525 |
| British Monopoly Board - Map Quiz | 0 | - | 4.46 | 19,905 |
| English Monarchs Quiz | 0 | - | 4.92 | 483,988 |
| Asian Countries with the Most Christians | 0 | - | 4.87 | 93,705 |
| Biggest Trading Partners – Australia | 0 | - | 4.92 | 59,460 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,027 |
| U.S. Vice Presidents | 0 | - | 4.40 | 131,552 |
| Governors Who Ran For President | 0 | - | 4.47 | 19,885 |
| U.S. Presidents by Event | 0 | - | 4.58 | 31,369 |
| First Ladies of the United States | 0 | - | 4.28 | 83,683 |
| Presidential Middle Names | 0 | - | 4.40 | 58,698 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,495 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 25,827 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 74,336 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.63 | 15,529 |
| Add a Letter - Make a U.S. President | 0 | - | 4.61 | 23,462 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 185,685 |
| Shortest U.S. Presidential Terms | 0 | - | 4.80 | 11,518 |
| Every European Country Shape | 0 | - | 4.94 | 194,240 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 90,486 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.70 | 57,128 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 145,612 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 70,567 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 127,834 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 161,757 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 99,235 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 53,358 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 45,039 |
| Germany by Picture | 0 | - | 4.37 | 29,269 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 32,851 |
| The Trojan War | 0 | - | 4.81 | 38,454 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.83 | 105,600 |
| Ireland Country Quiz | 0 | - | 4.64 | 131,738 |
| Roman History Vocabulary | 0 | - | 4.40 | 56,939 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 82,410 |
| Roman Emperors | 0 | - | 4.96 | 112,214 |
| Roman History by Picture | 0 | - | 4.46 | 25,905 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 57,975 |
| Largest Nordic Cities on a Map | 0 | - | 4.82 | 35,286 |
| Countries Closest to Iceland | 0 | - | 4.88 | 70,178 |
| Geography of the Spanish Empire | 0 | - | 4.48 | 36,609 |
| Countries of Iberia in History with a Map | 0 | - | 4.89 | 39,416 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 83,055 |
| Countries that Visit the UK the Most | 0 | - | 4.85 | 71,535 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 96,014 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 61,340 |
| Do You Even Know Anything About Shakespeare? | 0 | - | 4.56 | 33,723 |
| Commonwealth of Nations Countries | 0 | - | 4.93 | 232,921 |
| British History Quiz for Dummies | 0 | - | 4.70 | 76,549 |
| The Reign of Queen Elizabeth II | 0 | - | 4.35 | 35,169 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 386,204 |
| National Founders | 0 | - | 4.39 | 83,101 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 27,956 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,480 |
| Random U.S. Vice President to President | 0 | - | 4.38 | 30,032 |
| The John Adams Presidency | 0 | - | 4.12 | 8,524 |
| The Theodore Roosevelt Presidency | 0 | - | 4.33 | 7,568 |
| U.S. Vice Presidential Trivia | 0 | - | 4.27 | 12,542 |
| The American Revolution | 0 | - | 4.52 | 53,537 |
| Random European Flag to Country | 0 | - | 4.89 | 176,126 |
| Flags of Countries That Border France | 0 | - | 4.88 | 119,925 |
| Flags of Countries that Border Germany | 0 | - | 4.85 | 94,340 |
| Olympian Gods Quiz | 0 | - | 4.96 | 476,256 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 89,341 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,143 |
| Countries that Beat Iceland | 0 | - | 4.81 | 41,112 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 91,798 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 187,144 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,045 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.89 | 50,639 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 133,985 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 829,734 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 73,879 |
| Flags of WW1 | 0 | - | 4.68 | 36,751 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 52,710 |
| All U.S. Supreme Court Justices | 0 | - | 4.52 | 28,472 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.45 | 11,335 |
| US Presidents - 1 Minute Sprint | 0 | - | 4.41 | 297,920 |
| The George Washington Presidency | 0 | - | 4.03 | 14,277 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,683 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 17,903 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,374 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 67,585 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 212,672 |
| Category Elimination - U.S. States #2 | 0 | - | 4.81 | 127,859 |
| Europe Map Quiz | 0 | - | 5.00 | 4,635,507 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 516,843 |
| European Secessionist Movements on a Map | 0 | - | 4.52 | 34,005 |
| Random European Countries on a Map | 0 | - | 4.97 | 276,484 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 85,288 |
| Arms Exports - Russia | 0 | - | 4.45 | 24,462 |
| Least Irish U.S. States | 0 | - | 4.47 | 17,878 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 121,442 |
| Geography of the Dutch Empire | 0 | - | 4.68 | 33,954 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 76,524 |
| Invasions of Great Britain | 0 | - | 4.51 | 58,585 |
| UK Rivers Map Quiz | 0 | - | 4.54 | 29,812 |
| British Places A-Z | 0 | - | 4.29 | 78,884 |
| Name a James Bond Movie A-Z | 0 | - | 4.71 | 9,805 |
| Shakespeare's Plays Quiz | 0 | - | 4.38 | 378,707 |
| Shakespearean Characters | 0 | - | 4.36 | 37,184 |
| Animals in British History | 0 | - | 4.43 | 25,526 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 28,312 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,198 |
| 10 Plagues of Egypt | 0 | - | 4.41 | 45,433 |
| Countries of the Japanese Empire | 0 | - | 4.96 | 102,715 |
| Communist Countries in History | 0 | - | 4.63 | 483,389 |
| History of India | 0 | - | 4.61 | 20,907 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.64 | 54,435 |
| Africa Map Quiz | 0 | - | 5.00 | 2,067,624 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 262,109 |
| History of South Africa | 0 | - | 4.60 | 17,356 |
| Oceania Map Quiz | 0 | - | 4.98 | 617,264 |
| Australian Capitals | 0 | - | 4.92 | 62,209 |
| History of Mexico | 0 | - | 4.58 | 15,000 |
| United States Map Quiz | 0 | - | 4.98 | 4,093,497 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 78,993 |
| Win the U.S. Presidential Election | 0 | - | 4.74 | 593,418 |
| U.S. Presidential Quotes | 0 | - | 4.36 | 43,969 |
| The George W. Bush Presidency | 0 | - | 4.06 | 31,811 |
| People in Pictures with Ronald Reagan | 0 | - | 4.34 | 39,870 |
| U.S. President Scramble | 0 | - | 4.39 | 114,129 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.47 | 22,574 |
| People in Pictures with Barack Obama | 0 | - | 4.09 | 47,143 |
