| First Names of U.S. Presidents | 0 | - | 4.86 | 381,269 |
| Prime Ministers of the UK | 0 | - | 4.95 | 438,281 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,003 |
| Countries of the Popes | 0 | - | 4.79 | 127,978 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 426,140 |
| Vatican City Country Quiz | 0 | - | 4.53 | 44,314 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,692,078 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,205 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 217,033 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,382 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 94,897 |
| Shakespeare Quotes | 0 | - | 4.43 | 71,373 |
| Pope Facts | 0 | - | 4.39 | 31,221 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,899 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,461 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,428 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 387,740 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 191,524 |
| Random European Countries on a Map | 0 | - | 4.97 | 283,221 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,779 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,611 |
| Top 100 Harry Potter Characters by Mention | 0 | - | 4.93 | 393,479 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 127,450 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,285 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,484 |
| Random U.S. Presidents by Picture | 0 | - | 4.40 | 66,190 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,917 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,930 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,015 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 79,785 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,441 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,821 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,725 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,926 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 144,423 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,627 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,070 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,196 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,151 |
| Harry Potter Last Names | 0 | - | 4.64 | 948,902 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 118,931 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,845 |
| Country by Photo of its Leader | 0 | - | 4.72 | 123,951 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,709 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,835 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,163 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,631 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 234,266 |
| Every European Country Shape | 0 | - | 4.96 | 201,441 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,578 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,174 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,753 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,460 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,615 |
| Name that Greek Letter | 0 | - | 4.93 | 323,247 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,003 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,834 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,694 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,170 |
| UK Immigration by Country | 0 | - | 4.94 | 140,771 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,601 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,991 |
| Name the English Monarchs | 0 | - | 4.91 | 501,952 |
| Most-Visited Countries by Popes | 0 | - | 4.56 | 83,641 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,059 |
| National Founders | 0 | - | 4.40 | 83,810 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,598 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,346 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,680 |
| Presidential Middle Names | 0 | - | 4.41 | 60,164 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,178 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,241 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,762 |
| Assassinated U.S. Presidents | 0 | - | 4.62 | 94,511 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,956 |
| People in Pictures with Ronald Reagan | 0 | - | 4.35 | 40,649 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,387 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,918 |
| U.S. States by Church Attendance | 0 | - | 4.59 | 32,398 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,857 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,439 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,342 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,006 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 317,762 |
| Random European Flag to Country | 0 | - | 4.89 | 182,155 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,255 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,590 |
| Flags of Countries That Border France | 0 | - | 4.88 | 122,783 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,923 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,389 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,217 |
| The Trojan War | 0 | - | 4.83 | 39,674 |
| Ancient Greek Words | 0 | - | 4.93 | 111,449 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,655 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,714 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,461 |
| Roman Emperors | 0 | - | 4.95 | 119,777 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,795 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,756 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,246 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,728 |
| Monty Python Quotes | 0 | - | 4.88 | 42,447 |
| Shakespearean Phrases | 0 | - | 4.57 | 36,717 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,263 |
| Animals in British History | 0 | - | 4.44 | 25,986 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,771 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 858,324 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,931 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,666 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,386 |
| Random African Countries on a Map | 0 | - | 4.99 | 295,495 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,315 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,067 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,776 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,148 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,246 |
| First Ladies of the United States | 0 | - | 4.28 | 85,583 |
| The Bill Clinton Presidency | 0 | - | 4.24 | 31,443 |
| The George H. W. Bush Presidency | 0 | - | 4.36 | 21,483 |
| The Ronald Reagan Presidency | 0 | - | 4.26 | 24,811 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,938 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,212 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,998 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,173 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 193,458 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,944 |
| The Barack Obama Presidency | 0 | - | 4.16 | 25,379 |
| Random U.S. States on a Map | 0 | - | 4.96 | 625,698 |
| Did You Even Watch - The Crown? | 0 | - | 4.34 | 11,227 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,811 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,942 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,193 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,379 |
| History of Russia Quiz | 0 | - | 4.47 | 31,899 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,484 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,962 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,663 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,846 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,570 |
| Roman to Greek God | 0 | - | 4.52 | 122,713 |
| History of Italy | 0 | - | 4.55 | 31,955 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,674 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,051 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,636 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,196 |
| Real Madrid 2010s Starting XI | 0 | - | 4.89 | 67,249 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,823 |
| Groups of Things - Harry Potter | 0 | - | 4.82 | 281,518 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 37,764 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 62,002 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.41 | 51,715 |
| Random Asian Countries on a Map | 0 | - | 4.91 | 169,851 |
| Communist Countries in History | 0 | - | 4.63 | 495,209 |
| History of India | 0 | - | 4.62 | 21,408 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,418 |
| Countries of Africa | 0 | - | 5.00 | 2,532,769 |
| Africa Map Quiz | 0 | - | 5.00 | 2,115,953 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,006 |
| History of South Africa | 0 | - | 4.60 | 17,671 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,278 |
| Australian Capitals | 0 | - | 4.92 | 62,709 |
| Australia Map Quiz | 0 | - | 4.95 | 344,122 |
| History of Mexico | 0 | - | 4.58 | 15,299 |
| United States Map Quiz | 0 | - | 4.98 | 4,155,385 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,949 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,515 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,297 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,659 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,615 |
| The George Washington Presidency | 0 | - | 4.03 | 14,539 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,718 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,634 |
| U.S. President Scramble | 0 | - | 4.40 | 116,701 |
| The John Adams Presidency | 0 | - | 4.12 | 8,740 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,925 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,735 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,312 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,667 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,844 |
| U.S. Presidential Last Names as Baby Names | 0 | - | 4.19 | 33,544 |
| U.S. Presidents by Picture - Multiple Choice | 0 | - | 4.50 | 28,808 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,858 |
| U.S. History for Dummies | 0 | - | 4.47 | 82,989 |
| The American Civil War | 0 | - | 4.62 | 52,393 |
| Name a Valid U.S. President by Birth State | 0 | - | 4.60 | 9,755 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,050 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,180 |
| Official European Union Languages | 0 | - | 4.97 | 238,284 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,711 |
| Europe Map Quiz | 0 | - | 5.00 | 4,758,417 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,119 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,802 |
| Most Forested European Countries | 0 | - | 4.80 | 75,273 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,616 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,644 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,489 |
| History of Austria | 0 | - | 4.70 | 17,849 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,125 |
| Geography of the French Empire | 0 | - | 4.45 | 27,040 |
| The French Revolution | 0 | - | 4.46 | 23,919 |
