| First Names of U.S. Presidents | 0 | - | 4.86 | 381,387 |
| Prime Ministers of the UK | 0 | - | 4.95 | 438,485 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,069 |
| Countries of the Popes | 0 | - | 4.79 | 128,032 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 426,248 |
| Vatican City Country Quiz | 0 | - | 4.53 | 44,329 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,694,263 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,230 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 217,104 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,473 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 94,928 |
| Shakespeare Quotes | 0 | - | 4.43 | 71,381 |
| Pope Facts | 0 | - | 4.39 | 31,227 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,914 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,493 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,433 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 387,868 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 191,633 |
| Random European Countries on a Map | 0 | - | 4.97 | 283,305 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,791 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,796 |
| Top 100 Harry Potter Characters by Mention | 0 | - | 4.93 | 393,683 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 127,476 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,345 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,492 |
| Random U.S. Presidents by Picture | 0 | - | 4.40 | 66,201 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,928 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,018 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,091 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 80,735 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,524 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,884 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,774 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,957 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 144,502 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,764 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,100 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,302 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,403 |
| Harry Potter Last Names | 0 | - | 4.64 | 949,069 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 118,968 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,847 |
| Country by Photo of its Leader | 0 | - | 4.72 | 123,986 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,773 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,842 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,172 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,687 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 234,305 |
| Every European Country Shape | 0 | - | 4.96 | 201,497 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,628 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,254 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,779 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,469 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,878 |
| Name that Greek Letter | 0 | - | 4.93 | 323,310 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,053 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,892 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,765 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,216 |
| UK Immigration by Country | 0 | - | 4.94 | 140,805 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,665 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,034 |
| Name the English Monarchs | 0 | - | 4.91 | 502,206 |
| Most-Visited Countries by Popes | 0 | - | 4.56 | 83,669 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,063 |
| National Founders | 0 | - | 4.40 | 83,819 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,641 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,386 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,724 |
| Presidential Middle Names | 0 | - | 4.41 | 60,186 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,183 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,280 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,840 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,545 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,967 |
| People in Pictures with Ronald Reagan | 0 | - | 4.35 | 40,661 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,398 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,951 |
| U.S. States by Church Attendance | 0 | - | 4.59 | 32,411 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,914 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,462 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,388 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,076 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 317,905 |
| Random European Flag to Country | 0 | - | 4.89 | 182,231 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,307 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,665 |
| Flags of Countries That Border France | 0 | - | 4.88 | 122,830 |
| Flags of Countries that Border Germany | 0 | - | 4.85 | 96,958 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,420 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,438 |
| The Trojan War | 0 | - | 4.83 | 39,692 |
| Ancient Greek Words | 0 | - | 4.93 | 111,503 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,731 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,806 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,485 |
| Roman Emperors | 0 | - | 4.95 | 119,880 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,826 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,766 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,288 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,765 |
| Monty Python Quotes | 0 | - | 4.88 | 42,455 |
| Shakespearean Phrases | 0 | - | 4.57 | 36,724 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,315 |
| Animals in British History | 0 | - | 4.43 | 25,994 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,783 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 858,757 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,939 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,670 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,407 |
| Random African Countries on a Map | 0 | - | 4.99 | 295,670 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,318 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,069 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,782 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,186 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,251 |
| First Ladies of the United States | 0 | - | 4.28 | 85,604 |
| The Bill Clinton Presidency | 0 | - | 4.24 | 31,448 |
| The George H. W. Bush Presidency | 0 | - | 4.36 | 21,486 |
| The Ronald Reagan Presidency | 0 | - | 4.26 | 24,816 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,947 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,217 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 77,033 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,183 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 193,523 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,953 |
| The Barack Obama Presidency | 0 | - | 4.13 | 25,390 |
| Random U.S. States on a Map | 0 | - | 4.96 | 625,941 |
| Did You Even Watch - The Crown? | 0 | - | 4.34 | 11,228 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,816 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,960 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,246 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,435 |
| History of Russia Quiz | 0 | - | 4.47 | 31,905 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,523 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,984 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,688 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 74,007 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,591 |
| Roman to Greek God | 0 | - | 4.52 | 122,757 |
| History of Italy | 0 | - | 4.55 | 31,961 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,760 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,085 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,644 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,209 |
| Real Madrid 2010s Starting XI | 0 | - | 4.89 | 67,315 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,838 |
| Groups of Things - Harry Potter | 0 | - | 4.82 | 281,579 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 37,794 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 62,022 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.41 | 51,726 |
| Random Asian Countries on a Map | 0 | - | 4.91 | 169,916 |
| Communist Countries in History | 0 | - | 4.63 | 495,384 |
| History of India | 0 | - | 4.62 | 21,415 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,426 |
| Countries of Africa | 0 | - | 5.00 | 2,534,195 |
| Africa Map Quiz | 0 | - | 5.00 | 2,116,678 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,057 |
| History of South Africa | 0 | - | 4.60 | 17,680 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,613 |
| Australian Capitals | 0 | - | 4.92 | 62,714 |
| Australia Map Quiz | 0 | - | 4.95 | 344,223 |
| History of Mexico | 0 | - | 4.58 | 15,304 |
| United States Map Quiz | 0 | - | 4.98 | 4,156,501 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,956 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,521 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,330 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,666 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,623 |
| The George Washington Presidency | 0 | - | 4.03 | 14,541 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,724 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,642 |
| U.S. President Scramble | 0 | - | 4.40 | 116,724 |
| The John Adams Presidency | 0 | - | 4.12 | 8,743 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,929 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,742 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,317 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,671 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,848 |
| U.S. Presidential Last Names as Baby Names | 0 | - | 4.19 | 33,557 |
| U.S. Presidents by Picture - Multiple Choice | 0 | - | 4.50 | 28,820 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,868 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,010 |
| The American Civil War | 0 | - | 4.62 | 52,407 |
| Name a Valid U.S. President by Birth State | 0 | - | 4.60 | 9,762 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,074 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,262 |
| Official European Union Languages | 0 | - | 4.97 | 238,358 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,757 |
| Europe Map Quiz | 0 | - | 5.00 | 4,759,848 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,239 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,928 |
| Most Forested European Countries | 0 | - | 4.80 | 75,290 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,620 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,842 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,494 |
| History of Austria | 0 | - | 4.70 | 17,854 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,139 |
| Geography of the French Empire | 0 | - | 4.45 | 27,046 |
| The French Revolution | 0 | - | 4.46 | 23,924 |
