| First Names of U.S. Presidents | 0 | - | 4.86 | 382,336 |
| Prime Ministers of the UK | 0 | - | 4.95 | 440,094 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,439 |
| Countries of the Popes | 0 | - | 4.79 | 128,346 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 427,090 |
| Vatican City Country Quiz | 0 | - | 4.53 | 44,463 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,708,764 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,480 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 217,526 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,991 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,192 |
| Shakespeare Quotes | 0 | - | 4.43 | 71,461 |
| Pope Facts | 0 | - | 4.39 | 31,298 |
| Prime Ministers of Australia | 0 | - | 4.50 | 32,008 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,648 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,494 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 388,747 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 192,622 |
| Random European Countries on a Map | 0 | - | 4.97 | 284,298 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,865 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,048 |
| Top 100 Harry Potter Characters by Mention | 0 | - | 4.93 | 395,184 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,763 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,538 |
| Random U.S. Presidents by Picture | 0 | - | 4.40 | 66,342 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,063 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,654 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,764 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,466 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,116 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,330 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,148 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,200 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 144,987 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,741 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,267 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,183 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,170 |
| Harry Potter Last Names | 0 | - | 4.64 | 950,131 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 119,247 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,878 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 127,954 |
| Country by Photo of its Leader | 0 | - | 4.72 | 124,267 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,941 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,222 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,092 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 234,723 |
| Every European Country Shape | 0 | - | 4.96 | 202,218 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,021 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,816 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,960 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,557 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,932 |
| Name that Greek Letter | 0 | - | 4.93 | 324,182 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,301 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,270 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,067 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,514 |
| UK Immigration by Country | 0 | - | 4.94 | 141,169 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,192 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,384 |
| Name the English Monarchs | 0 | - | 4.91 | 503,995 |
| Most-Visited Countries by Popes | 0 | - | 4.56 | 83,871 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,099 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,096 |
| National Founders | 0 | - | 4.40 | 83,885 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,933 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,726 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 94,006 |
| Presidential Middle Names | 0 | - | 4.41 | 60,414 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,212 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,456 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 305,378 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,670 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,053 |
| People in Pictures with Ronald Reagan | 0 | - | 4.35 | 40,751 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,487 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,222 |
| U.S. States by Church Attendance | 0 | - | 4.59 | 32,482 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,391 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,590 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,785 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,523 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 319,341 |
| Random European Flag to Country | 0 | - | 4.89 | 182,983 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,655 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,094 |
| Flags of Countries That Border France | 0 | - | 4.88 | 123,390 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 97,502 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,681 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,933 |
| The Trojan War | 0 | - | 4.83 | 39,799 |
| Ancient Greek Words | 0 | - | 4.93 | 111,917 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,258 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,517 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,655 |
| Roman Emperors | 0 | - | 4.95 | 120,406 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,011 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,854 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,544 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,128 |
| Monty Python Quotes | 0 | - | 4.89 | 42,511 |
| Shakespearean Phrases | 0 | - | 4.57 | 36,781 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,697 |
| Animals in British History | 0 | - | 4.43 | 26,043 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,898 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 862,003 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,982 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,704 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,350 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,107 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,830 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,505 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,281 |
| First Ladies of the United States | 0 | - | 4.28 | 85,749 |
| The Bill Clinton Presidency | 0 | - | 4.24 | 31,484 |
| The George H. W. Bush Presidency | 0 | - | 4.36 | 21,516 |
| The Ronald Reagan Presidency | 0 | - | 4.26 | 24,846 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,983 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,251 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,255 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,237 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 193,887 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,999 |
| The Barack Obama Presidency | 0 | - | 4.13 | 25,426 |
| Random U.S. States on a Map | 0 | - | 4.96 | 627,840 |
| Did You Even Watch - The Crown? | 0 | - | 4.34 | 11,248 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,857 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,056 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,736 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,868 |
| History of Russia Quiz | 0 | - | 4.47 | 31,952 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,809 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 94,154 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 80,859 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,609 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,687 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,840 |
| Roman to Greek God | 0 | - | 4.52 | 123,023 |
| History of Italy | 0 | - | 4.55 | 32,054 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 126,226 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,281 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,721 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,298 |
| Real Madrid 2010s Starting XI | 0 | - | 4.90 | 68,089 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,958 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 37,982 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 62,269 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.42 | 51,816 |
| Random Asian Countries on a Map | 0 | - | 4.91 | 170,362 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,551 |
| Random African Countries on a Map | 0 | - | 4.99 | 296,852 |
| Communist Countries in History | 0 | - | 4.63 | 496,561 |
| History of South Africa | 0 | - | 4.60 | 17,717 |
| Oceania Map Quiz | 0 | - | 4.98 | 653,278 |
| Australian Capitals | 0 | - | 4.92 | 62,755 |
| Australia Map Quiz | 0 | - | 4.95 | 345,187 |
| History of Mexico | 0 | - | 4.58 | 15,336 |
| United States Map Quiz | 0 | - | 4.98 | 4,163,723 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,039 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,557 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,472 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,730 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,678 |
| The George Washington Presidency | 0 | - | 4.03 | 14,569 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,750 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,673 |
| U.S. President Scramble | 0 | - | 4.40 | 116,938 |
| The John Adams Presidency | 0 | - | 4.12 | 8,762 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,949 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,749 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,335 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,707 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,870 |
| U.S. Presidential Last Names as Baby Names | 0 | - | 4.19 | 33,648 |
| U.S. Presidents by Picture - Multiple Choice | 0 | - | 4.50 | 28,897 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,951 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,199 |
| The American Civil War | 0 | - | 4.62 | 52,504 |
| Name a Valid U.S. President by Birth State | 0 | - | 4.60 | 9,798 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,333 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,060 |
| Official European Union Languages | 0 | - | 4.97 | 238,938 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,140 |
| Europe Map Quiz | 0 | - | 5.00 | 4,771,539 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,611 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,081 |
| Most Forested European Countries | 0 | - | 4.80 | 75,458 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,664 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,608 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,551 |
| History of Austria | 0 | - | 4.70 | 17,905 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,239 |
| Geography of the French Empire | 0 | - | 4.45 | 27,155 |
| The French Revolution | 0 | - | 4.47 | 24,064 |
| History of France | 0 | - | 4.59 | 57,277 |
| French History Multiple Choice | 0 | - | 4.55 | 33,128 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,079 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,947 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,509 |
