| First Names of U.S. Presidents | 0 | - | 4.86 | 383,641 |
| Prime Ministers of the UK | 0 | - | 4.95 | 442,363 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,931 |
| Countries of the Popes | 0 | - | 4.79 | 128,740 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,546 |
| Vatican City Country Quiz | 0 | - | 4.53 | 44,668 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,726,406 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,878 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 218,057 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,789 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,575 |
| Shakespeare Quotes | 0 | - | 4.43 | 71,580 |
| Pope Facts | 0 | - | 4.39 | 31,392 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,199 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,933 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,570 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 390,152 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 193,822 |
| Random European Countries on a Map | 0 | - | 4.97 | 285,158 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.46 | 26,935 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,857 |
| Top 100 Harry Potter Characters by Mention | 0 | - | 4.93 | 397,415 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,833 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,611 |
| Random U.S. Presidents by Picture | 0 | - | 4.40 | 66,614 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,245 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,467 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,390 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,473 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,792 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 71,862 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,595 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,451 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 145,807 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,874 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,480 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,479 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,038 |
| Harry Potter Last Names | 0 | - | 4.64 | 951,804 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 119,598 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,933 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 128,371 |
| Country by Photo of its Leader | 0 | - | 4.70 | 124,641 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,106 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,350 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,798 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 235,277 |
| Every European Country Shape | 0 | - | 4.96 | 203,009 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,229 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,726 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,319 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,656 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,996 |
| Name that Greek Letter | 0 | - | 4.93 | 324,994 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,677 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,928 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,388 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,889 |
| UK Immigration by Country | 0 | - | 4.94 | 141,731 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 141,028 |
| Countries that Visit the UK the Most | 0 | - | 4.88 | 75,865 |
| Name the English Monarchs | 0 | - | 4.91 | 506,439 |
| Most-Visited Countries by Popes | 0 | - | 4.56 | 84,181 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,132 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,549 |
| National Founders | 0 | - | 4.40 | 83,977 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,569 |
| U.S. Presidents by Event | 0 | - | 4.58 | 35,355 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,635 |
| Presidential Middle Names | 0 | - | 4.41 | 60,733 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,284 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,697 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 306,218 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,898 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,208 |
| People in Pictures with Ronald Reagan | 0 | - | 4.35 | 40,922 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,636 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,595 |
| U.S. States by Church Attendance | 0 | - | 4.59 | 32,559 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 97,163 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,754 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 162,338 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,270 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 320,552 |
| Random European Flag to Country | 0 | - | 4.90 | 184,246 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 166,473 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,776 |
| Flags of Countries That Border France | 0 | - | 4.89 | 123,812 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 97,885 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 72,022 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,798 |
| The Trojan War | 0 | - | 4.83 | 39,993 |
| Ancient Greek Words | 0 | - | 4.93 | 112,476 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,968 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,569 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,594 |
| Roman Emperors | 0 | - | 4.95 | 121,217 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,347 |
| Ancient Rome - True or False? | 0 | - | 4.85 | 43,306 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 54,002 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,988 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,021 |
| Monty Python Quotes | 0 | - | 4.89 | 42,610 |
| Shakespearean Phrases | 0 | - | 4.58 | 36,896 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,361 |
| Animals in British History | 0 | - | 4.43 | 26,101 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 29,034 |
| 2026–2027 English Premier League Teams | 0 | - | 4.84 | 871,503 |
| Prime Ministers of Israel | 0 | - | 3.97 | 18,070 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,754 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,396 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,148 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,863 |
| U.S. Vice Presidents | 0 | - | 4.39 | 137,018 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,364 |
| U.S. Presidential Running Mates | 0 | - | 4.41 | 28,776 |
| First Ladies of the United States | 0 | - | 4.28 | 85,982 |
| The Bill Clinton Presidency | 0 | - | 4.24 | 31,543 |
| The George H. W. Bush Presidency | 0 | - | 4.36 | 21,556 |
| The Ronald Reagan Presidency | 0 | - | 4.26 | 24,893 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.42 | 24,069 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,319 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,498 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,364 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 194,750 |
| Add a Letter - Make a U.S. President | 0 | - | 4.58 | 24,102 |
| Win the 1828 U.S. Presidential Election | 0 | - | 4.31 | 59,052 |
| The Barack Obama Presidency | 0 | - | 4.14 | 25,509 |
| Random U.S. States on a Map | 0 | - | 4.96 | 630,410 |
| Did You Even Watch - The Crown? | 0 | - | 4.34 | 11,292 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,946 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,188 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,432 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,500 |
| History of Russia Quiz | 0 | - | 4.47 | 32,006 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,571 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 94,432 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 81,164 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,382 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.89 | 111,814 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,969 |
| Roman to Greek God | 0 | - | 4.52 | 123,352 |
| History of Italy | 0 | - | 4.55 | 32,148 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 126,830 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,505 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,825 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,426 |
| Real Madrid 2010s Starting XI | 0 | - | 4.90 | 68,874 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,099 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 38,219 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.32 | 62,589 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.42 | 51,977 |
| Random Asian Countries on a Map | 0 | - | 4.91 | 170,999 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,766 |
| Random African Countries on a Map | 0 | - | 4.99 | 297,887 |
| Communist Countries in History | 0 | - | 4.63 | 498,254 |
| History of South Africa | 0 | - | 4.60 | 17,765 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,474 |
| Australian Capitals | 0 | - | 4.92 | 62,834 |
| Australia Map Quiz | 0 | - | 4.95 | 346,187 |
| History of Mexico | 0 | - | 4.52 | 15,366 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,530 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,149 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,598 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,700 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,845 |
| The George Washington Presidency | 0 | - | 4.03 | 14,612 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,781 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,757 |
| U.S. President Scramble | 0 | - | 4.40 | 117,477 |
| The John Adams Presidency | 0 | - | 4.12 | 8,791 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,993 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,776 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,381 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,762 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,931 |
| U.S. Presidential Last Names as Baby Names | 0 | - | 4.19 | 33,814 |
| U.S. Presidents by Picture - Multiple Choice | 0 | - | 4.50 | 29,044 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 48,089 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,421 |
| The American Civil War | 0 | - | 4.62 | 52,625 |
| Name a Valid U.S. President by Birth State | 0 | - | 4.60 | 9,853 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,735 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,257 |
| Official European Union Languages | 0 | - | 4.97 | 239,819 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,662 |
| Europe Map Quiz | 0 | - | 5.00 | 4,788,620 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,545 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,919 |
| Most Forested European Countries | 0 | - | 4.80 | 75,687 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,709 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,787 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,653 |
| History of Austria | 0 | - | 4.70 | 17,975 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,368 |
| Geography of the French Empire | 0 | - | 4.45 | 27,218 |
| The French Revolution | 0 | - | 4.47 | 24,148 |
| History of France | 0 | - | 4.61 | 57,626 |
| French History Multiple Choice | 0 | - | 4.55 | 33,234 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,560 |
