| Prime Ministers of the UK | 0 | - | 4.96 | 436,379 |
| Vatican City Country Quiz | 0 | - | 4.53 | 44,154 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 424,872 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 380,278 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,524 |
| Countries of the Popes | 0 | - | 4.79 | 127,550 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,672,077 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,910 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,773 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,644 |
| Most-Visited Countries by Popes | 0 | - | 4.55 | 83,379 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,771 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,253 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,371 |
| Shakespeare's Plays Quiz | 0 | - | 4.38 | 386,672 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 190,608 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,706 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,957 |
| Pope Facts | 0 | - | 4.39 | 31,124 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,763 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,587 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,216 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,475 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,803 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,906 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,447 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,323 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,722 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 143,766 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,742 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,877 |
| UK Cities Map Quiz | 0 | - | 4.95 | 463,107 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,575 |
| Shakespeare Quotes | 0 | - | 4.43 | 71,237 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,581 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,265 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,662 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,076 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,691 |
| Every European Country Shape | 0 | - | 4.96 | 200,754 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,705 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,981 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,377 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,381 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,266 |
| Name that Greek Letter | 0 | - | 4.93 | 322,433 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,610 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,377 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,311 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,797 |
| UK Immigration by Country | 0 | - | 4.94 | 140,049 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,832 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,610 |
| Name the English Monarchs | 0 | - | 4.92 | 499,855 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,023 |
| National Founders | 0 | - | 4.40 | 83,727 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,403 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,231 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,885 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,298 |
| Presidential Middle Names | 0 | - | 4.41 | 59,904 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,126 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,957 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,082 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,170 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,843 |
| People in Pictures with Ronald Reagan | 0 | - | 4.35 | 40,529 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,267 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,648 |
| Random U.S. Presidents by Picture | 0 | - | 4.39 | 65,978 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,248 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,282 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,872 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,444 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 316,658 |
| Random European Flag to Country | 0 | - | 4.89 | 181,474 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,832 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,125 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,440 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,613 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,050 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,115 |
| The Trojan War | 0 | - | 4.83 | 39,546 |
| Ancient Greek Words | 0 | - | 4.93 | 111,053 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,096 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,989 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,251 |
| Roman Emperors | 0 | - | 4.95 | 119,143 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,569 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,618 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 79,841 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,296 |
| Monty Python Quotes | 0 | - | 4.88 | 42,369 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,800 |
| Animals in British History | 0 | - | 4.44 | 25,926 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,628 |
| 2025–2026 English Premier League Teams | 0 | - | 4.86 | 854,728 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,867 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,612 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 54,165 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 127,106 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,958 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,695 |
| U.S. Vice Presidents | 0 | - | 4.39 | 135,585 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,193 |
| First Ladies of the United States | 0 | - | 4.28 | 85,356 |
| The Bill Clinton Presidency | 0 | - | 4.22 | 31,394 |
| The George H. W. Bush Presidency | 0 | - | 4.36 | 21,447 |
| The Ronald Reagan Presidency | 0 | - | 4.26 | 24,759 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,862 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,156 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,643 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,074 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 192,977 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,877 |
| The Barack Obama Presidency | 0 | - | 4.16 | 25,310 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,729 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,833 |
| Random European Countries on a Map | 0 | - | 4.97 | 282,582 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,592 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,833 |
| History of Russia Quiz | 0 | - | 4.49 | 31,835 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,174 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,756 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,437 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,067 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,424 |
| Roman to Greek God | 0 | - | 4.52 | 122,459 |
| History of Italy | 0 | - | 4.55 | 31,889 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,180 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,813 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,551 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,080 |
| Real Madrid 2010s Starting XI | 0 | - | 4.89 | 66,662 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,698 |
| Groups of Things - Harry Potter | 0 | - | 4.82 | 280,623 |
| Top 100 Harry Potter Characters by Mention | 0 | - | 4.93 | 391,350 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.91 | 37,298 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 61,753 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.41 | 51,579 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 118,560 |
| Communist Countries in History | 0 | - | 4.63 | 493,723 |
| History of India | 0 | - | 4.61 | 21,334 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,290 |
| Countries of Africa | 0 | - | 5.00 | 2,519,192 |
| Africa Map Quiz | 0 | - | 5.00 | 2,109,909 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,300 |
| History of South Africa | 0 | - | 4.60 | 17,634 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,134 |
| Australian Capitals | 0 | - | 4.92 | 62,647 |
| Australia Map Quiz | 0 | - | 4.94 | 343,160 |
| History of Mexico | 0 | - | 4.58 | 15,254 |
| United States Map Quiz | 0 | - | 4.98 | 4,147,580 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,835 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,417 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,111 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,540 |
| The George Washington Presidency | 0 | - | 4.03 | 14,501 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,684 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,561 |
| U.S. President Scramble | 0 | - | 4.40 | 116,433 |
| The John Adams Presidency | 0 | - | 4.12 | 8,704 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,900 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,710 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,261 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,637 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,806 |
| U.S. Presidential Last Names as Baby Names | 0 | - | 4.19 | 33,437 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,768 |
| U.S. History for Dummies | 0 | - | 4.47 | 82,710 |
| The American Civil War | 0 | - | 4.62 | 52,261 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 233,768 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,828 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,106 |
| Official European Union Languages | 0 | - | 4.97 | 237,576 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,260 |
| Europe Map Quiz | 0 | - | 5.00 | 4,743,939 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,549 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,383 |
| Most Forested European Countries | 0 | - | 4.80 | 75,086 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,564 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 210,886 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,402 |
| History of Austria | 0 | - | 4.70 | 17,794 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,024 |
| Geography of the French Empire | 0 | - | 4.45 | 26,988 |
| The French Revolution | 0 | - | 4.46 | 23,855 |
| History of France | 0 | - | 4.59 | 56,553 |
| French History Multiple Choice | 0 | - | 4.55 | 32,934 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,421 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,859 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,832 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,305 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,212 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,528 |
| Things with Names from Classical Mythology | 0 | - | 4.28 | 87,305 |
| Ireland Country Quiz | 0 | - | 4.69 | 134,175 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,123 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,614 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,768 |
