| First Names of U.S. Presidents | 0 | - | 4.86 | 351,060 |
| Prime Ministers of the UK | 0 | - | 4.95 | 377,967 |
| Name the Popes Quiz | 0 | - | 4.42 | 100,329 |
| Countries of the Popes | 0 | - | 4.79 | 79,269 |
| Vatican City Country Quiz | 0 | - | 4.49 | 38,540 |
| U.S. Presidents by Picture | 0 | - | 4.85 | 392,100 |
| Pope Facts | 0 | - | 4.44 | 17,563 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 98,538 |
| Shakespeare's Plays Quiz | 0 | - | 4.41 | 346,039 |
| Play-Doh Presidents | 0 | - | 5.00 | 73,936 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 201,390 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,137,736 |
| Soviet Leaders 1917–1991 | 0 | - | 4.42 | 86,787 |
| Canadian Prime Ministers Quiz | 0 | - | 4.60 | 47,802 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.63 | 15,428 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 396,710 |
| Shakespeare Quotes Quiz | 0 | - | 4.40 | 62,040 |
| Top 100 Harry Potter Characters by Mention | 0 | - | 4.93 | 346,054 |
| Name a Valid U.S. President #1 | 0 | - | 4.93 | 165,326 |
| Random European Countries on a Map | 0 | - | 4.98 | 258,182 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.42 | 23,548 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 66,244 |
| UK Cities Map Quiz | 0 | - | 4.94 | 431,156 |
| Counties of England Map Quiz | 0 | - | 4.97 | 285,401 |
| Harry Potter Last Names | 0 | - | 4.70 | 885,673 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 107,227 |
| Prime Ministers of Israel | 0 | - | 4.10 | 16,025 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 115,570 |
| Prime Ministers of Australia | 0 | - | 4.47 | 27,475 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 220,660 |
| U.S. Presidential Quotes | 0 | - | 4.35 | 42,608 |
| Random U.S. Presidents by Picture | 0 | - | 4.37 | 59,021 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.91 | 47,919 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 132,597 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 61,761 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.93 | 48,170 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 57,854 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.96 | 124,919 |
| Figures from Greek Mythology | 0 | - | 4.92 | 168,544 |
| Country by Photo of its Leader | 0 | - | 4.79 | 114,427 |
| Biggest Spanish Empire Countries | 0 | - | 4.90 | 91,983 |
| UK Immigration by Country | 0 | - | 4.95 | 124,224 |
| United Kingdom Country Quiz | 0 | - | 4.93 | 117,272 |
| Countries that Visit the UK the Most | 0 | - | 4.84 | 61,756 |
| English Monarchs Quiz | 0 | - | 4.91 | 443,394 |
| Most-Visited Countries by Popes | 0 | - | 4.67 | 62,441 |
| Paramount Leaders of China | 0 | - | 4.31 | 9,859 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 92,493 |
| U.S. Cabinet Departments | 0 | - | 4.85 | 67,301 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.46 | 20,728 |
| Deadliest U.S. Wars | 0 | - | 4.82 | 156,974 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 217,280 |
| Every European Country Shape | 0 | - | 4.95 | 170,163 |
| Most Forested European Countries | 0 | - | 4.82 | 67,664 |
| Top 10 Richest Countries in Europe | 0 | - | 4.88 | 133,758 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 176,792 |
| Biggest Trading Partners - European Union | 0 | - | 4.90 | 64,206 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.33 | 39,239 |
| States of the German Confederation in 1848 | 0 | - | 4.84 | 26,121 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 580,068 |
| National Founders | 0 | - | 4.38 | 79,042 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.82 | 9,665 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 71,320 |
| Roman Emperors | 0 | - | 4.95 | 94,857 |
| Biggest Roman Empire Countries | 0 | - | 4.88 | 81,507 |
| Biggest Trading Partners - Spain | 0 | - | 4.93 | 50,013 |
| Biggest Trading Partners - UK | 0 | - | 4.86 | 56,388 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 175,672 |
| Monty Python Quotes | 0 | - | 4.89 | 40,252 |
| Shakespearean Phrases | 0 | - | 4.55 | 33,808 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 221,015 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.58 | 24,019 |
| 2025 English Premier League Teams | 0 | - | 4.85 | 731,870 |
| The Dictator Files: Chairman Mao | 0 | - | 4.30 | 18,041 |
| U.S. Vice Presidents | 0 | - | 4.42 | 118,208 |
| U.S. Presidential Trivia #1 | 0 | - | 4.51 | 96,213 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.57 | 80,559 |
| U.S. Presidential Trivia #2 | 0 | - | 4.51 | 39,282 |
| US Presidents - 1 Minute Sprint | 0 | - | 4.44 | 276,444 |
| Assassinated U.S. Presidents | 0 | - | 4.54 | 79,491 |
| People in Pictures with Ronald Reagan | 0 | - | 4.35 | 37,325 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 33,429 |
| Name a Valid U.S. President #2 | 0 | - | 4.53 | 59,113 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 70,387 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.71 | 53,487 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 130,168 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 114,980 |
| Random European Flag to Country | 0 | - | 4.90 | 160,297 |
| Countries that Bordered the USSR | 0 | - | 4.94 | 141,522 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 87,592 |
| Flags of Countries That Border France | 0 | - | 4.90 | 111,739 |
| Flags of Countries that Border Germany | 0 | - | 4.85 | 86,478 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 61,755 |
| Olympian Gods Quiz | 0 | - | 4.96 | 455,276 |
| The Trojan War | 0 | - | 4.81 | 35,694 |
| Name that Greek Letter | 0 | - | 4.94 | 294,329 |
| Ancient Greek Words | 0 | - | 4.90 | 96,338 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 110,417 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 48,101 |
| Geography of the Dutch Empire | 0 | - | 4.70 | 32,217 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 64,964 |
| Real Madrid 2010's Starting XI | 0 | - | 4.85 | 49,550 |
| Invasions of Great Britain | 0 | - | 4.48 | 55,176 |
| Groups of Things - Harry Potter | 0 | - | 4.85 | 258,974 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.90 | 30,509 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.32 | 53,095 |
| Random Asian Countries on a Map | 0 | - | 4.96 | 150,853 |
| Colonies of Africa with a Map | 0 | - | 4.80 | 47,935 |
| Random African Countries on a Map | 0 | - | 4.99 | 247,424 |
| All U.S. Supreme Court Justices | 0 | - | 4.49 | 27,218 |
| Governors Who Ran For President | 0 | - | 4.46 | 18,836 |
| U.S. Presidents by Event | 0 | - | 4.57 | 28,924 |
| First Ladies of the United States | 0 | - | 4.27 | 79,482 |
| Presidential Middle Names | 0 | - | 4.36 | 55,907 |
| The George W. Bush Presidency | 0 | - | 4.06 | 30,832 |
| The Bill Clinton Presidency | 0 | - | 4.18 | 30,096 |
| The George H. W. Bush Presidency | 0 | - | 4.35 | 20,486 |
| The Ronald Reagan Presidency | 0 | - | 4.25 | 23,533 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.41 | 22,434 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 24,767 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.31 | 62,741 |
| U.S. Presidents Who Died in Office | 0 | - | 4.72 | 31,052 |
| Random U.S. Vice President to President | 0 | - | 4.57 | 23,052 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.62 | 13,749 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.97 | 176,980 |
| Add a Letter - Make a U.S. President | 0 | - | 4.66 | 21,771 |
| The Barack Obama Presidency | 0 | - | 4.17 | 23,481 |
| U.S. States by Church Attendance | 0 | - | 4.58 | 30,139 |
| Random U.S. States on a Map | 0 | - | 4.95 | 478,788 |
| Europe Map with Random Merged Countries | 0 | - | 4.96 | 263,589 |
| Countries of Europe After World War II | 0 | - | 4.98 | 169,280 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 137,985 |
| Countries of the Soviet Union | 0 | - | 4.98 | 183,906 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 86,850 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 73,951 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 99,239 |
| Roman to Greek God | 0 | - | 4.52 | 113,213 |
| Communist Countries in History | 0 | - | 4.65 | 451,845 |
| Ancient Roman Trivia #2 | 0 | - | 4.55 | 35,222 |
| Geography of the Roman Empire | 0 | - | 4.58 | 48,255 |
| The Life of Julius Caesar | 0 | - | 4.46 | 31,992 |
| Roman Names for Places | 0 | - | 4.66 | 41,129 |
| Byzantine History | 0 | - | 4.87 | 26,104 |
| History of The Netherlands | 0 | - | 4.42 | 15,645 |
| The Vikings! | 0 | - | 4.44 | 27,020 |
| The Portuguese Empire | 0 | - | 4.54 | 11,295 |
| Modern Day Countries of the Portuguese Empire on a Map | 0 | - | 4.52 | 44,579 |
| Geography of the Spanish Empire | 0 | - | 4.47 | 35,084 |
| Biggest British Empire Countries | 0 | - | 4.66 | 78,557 |
| Which Country of the United Kingdom? | 0 | - | 4.59 | 34,918 |
| Top 100 UK Baby Boys' Names in 1850 | 0 | - | 4.41 | 60,284 |
| Most-Visited Countries by the British | 0 | - | 4.70 | 60,159 |
| Countries that Beat the United Kingdom | 0 | - | 4.55 | 58,197 |
| James Bond Movies | 0 | - | 4.64 | 142,849 |
| James Bond Trivia | 0 | - | 4.41 | 31,852 |
| Wives of King Henry VIII | 0 | - | 4.53 | 44,526 |
| Countries the UK Declared War On | 0 | - | 4.57 | 111,073 |
| Geography of the British Empire | 0 | - | 4.50 | 35,953 |
| Houses of British Monarchs | 0 | - | 4.50 | 51,756 |
| Medieval English History | 0 | - | 4.52 | 40,612 |
| British History Multiple Choice #1 | 0 | - | 4.47 | 51,297 |
| British History Quiz for Dummies | 0 | - | 4.54 | 61,166 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.38 | 47,434 |
| Scotland Trivia | 0 | - | 4.57 | 54,804 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,335,272 |
| Asia Map Quiz | 0 | - | 4.99 | 775,233 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 253,234 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,274,024 |
| History of Iran Quiz | 0 | - | 4.63 | 15,055 |
| Ottoman Empire Quiz | 0 | - | 4.42 | 15,555 |
| Chinese Inventions | 0 | - | 4.26 | 32,516 |
| History of China | 0 | - | 4.39 | 49,966 |
| History of India | 0 | - | 4.52 | 19,100 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.57 | 51,430 |
| Countries of Africa | 0 | - | 5.00 | 2,143,625 |
| Africa Map Quiz | 0 | - | 5.00 | 1,926,656 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 243,176 |
| History of South Africa | 0 | - | 4.59 | 16,472 |
| Oceania Map Quiz | 0 | - | 4.97 | 562,875 |
| Australian Capitals | 0 | - | 4.90 | 52,953 |
| Australia Map Quiz | 0 | - | 4.95 | 317,468 |
| History of Mexico | 0 | - | 4.55 | 13,794 |
| United States Map Quiz | 0 | - | 4.98 | 3,883,045 |
| U.S. Federal Agency Acronyms | 0 | - | 4.51 | 75,669 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.31 | 10,271 |
| U.S. Presidents by State | 0 | - | 4.29 | 65,776 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 25,493 |
| The George Washington Presidency | 0 | - | 4.02 | 13,577 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 12,808 |
| U.S. President Scramble | 0 | - | 4.39 | 90,257 |
| The John Adams Presidency | 0 | - | 4.10 | 7,921 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.32 | 10,662 |
| The Theodore Roosevelt Presidency | 0 | - | 4.30 | 7,102 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.31 | 16,729 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.32 | 20,433 |
| U.S. Vice Presidential Trivia | 0 | - | 4.29 | 11,256 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 44,914 |
| U.S. History for Dummies | 0 | - | 4.50 | 64,781 |
| The American Civil War | 0 | - | 4.72 | 48,689 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 334,059 |
