| First Names of U.S. Presidents | 0 | - | 4.85 | 379,864 |
| Prime Ministers of the UK | 0 | - | 4.96 | 435,296 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,307 |
| Countries of the Popes | 0 | - | 4.79 | 127,359 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 424,170 |
| Vatican City Country Quiz | 0 | - | 4.53 | 44,065 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,661,269 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,765 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,300 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,520 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,524 |
| Shakespeare Quotes | 0 | - | 4.43 | 71,181 |
| Pope Facts | 0 | - | 4.39 | 31,074 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,730 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,157 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,335 |
| Shakespeare's Plays Quiz | 0 | - | 4.38 | 386,142 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 190,147 |
| Random European Countries on a Map | 0 | - | 4.97 | 282,211 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,674 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,151 |
| Top 100 Harry Potter Characters by Mention | 0 | - | 4.93 | 390,452 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 126,871 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,487 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,373 |
| Random U.S. Presidents by Picture | 0 | - | 4.39 | 65,890 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,513 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,820 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,122 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,578 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,604 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,249 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,153 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 143,396 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,288 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,781 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,579 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,299 |
| Harry Potter Last Names | 0 | - | 4.64 | 946,455 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 118,379 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,770 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,380 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,052 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,576 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,042 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,426 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 233,485 |
| Every European Country Shape | 0 | - | 4.96 | 200,413 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,276 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,494 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,199 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,329 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,617 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,890 |
| Name that Greek Letter | 0 | - | 4.94 | 321,954 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,472 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,131 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,206 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,620 |
| UK Immigration by Country | 0 | - | 4.94 | 139,850 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,440 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,424 |
| Name the English Monarchs | 0 | - | 4.92 | 498,735 |
| Most-Visited Countries by Popes | 0 | - | 4.55 | 83,261 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,012 |
| National Founders | 0 | - | 4.40 | 83,680 |
| U.S. Vice Presidents | 0 | - | 4.41 | 135,231 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,065 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,657 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,117 |
| Presidential Middle Names | 0 | - | 4.41 | 59,780 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,094 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,827 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 303,658 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 93,931 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,771 |
| People in Pictures with Ronald Reagan | 0 | - | 4.35 | 40,492 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,207 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,514 |
| U.S. States by Church Attendance | 0 | - | 4.59 | 32,287 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 94,926 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,199 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,599 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,129 |
| Random European Flag to Country | 0 | - | 4.89 | 181,143 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,636 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,878 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,258 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,462 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,869 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,095 |
| The Trojan War | 0 | - | 4.83 | 39,478 |
| Ancient Greek Words | 0 | - | 4.92 | 110,850 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,759 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,577 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,130 |
| Roman Emperors | 0 | - | 4.95 | 118,670 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,447 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,548 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,633 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,076 |
| Monty Python Quotes | 0 | - | 4.88 | 42,344 |
| Shakespearean Phrases | 0 | - | 4.57 | 36,569 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,548 |
| Animals in British History | 0 | - | 4.44 | 25,893 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,579 |
| 2025–2026 English Premier League Teams | 0 | - | 4.86 | 852,731 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,837 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,592 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 54,036 |
| Random African Countries on a Map | 0 | - | 4.99 | 293,912 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,269 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,895 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,676 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,174 |
| First Ladies of the United States | 0 | - | 4.28 | 85,297 |
| The Bill Clinton Presidency | 0 | - | 4.22 | 31,367 |
| The George H. W. Bush Presidency | 0 | - | 4.36 | 21,426 |
| The Ronald Reagan Presidency | 0 | - | 4.26 | 24,730 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,825 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,123 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,447 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,026 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 192,699 |
| Add a Letter - Make a U.S. President | 0 | - | 4.61 | 23,848 |
| The Barack Obama Presidency | 0 | - | 4.16 | 25,271 |
| Random U.S. States on a Map | 0 | - | 4.96 | 622,391 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,707 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,787 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 316,060 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,901 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,528 |
| History of Russia Quiz | 0 | - | 4.49 | 31,806 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,975 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,621 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,317 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,743 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,336 |
| Roman to Greek God | 0 | - | 4.52 | 122,315 |
| History of Italy | 0 | - | 4.55 | 31,854 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,891 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,686 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,504 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,012 |
| Real Madrid 2010s Starting XI | 0 | - | 4.88 | 66,355 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,617 |
| Groups of Things - Harry Potter | 0 | - | 4.82 | 280,317 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.91 | 37,211 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 61,618 |
| Random Asian Countries on a Map | 0 | - | 4.90 | 168,981 |
| Communist Countries in History | 0 | - | 4.63 | 493,013 |
| History of India | 0 | - | 4.61 | 21,307 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,222 |
| Countries of Africa | 0 | - | 5.00 | 2,512,331 |
| Africa Map Quiz | 0 | - | 5.00 | 2,106,269 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,734 |
| History of South Africa | 0 | - | 4.60 | 17,622 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,336 |
| Australian Capitals | 0 | - | 4.92 | 62,610 |
| Australia Map Quiz | 0 | - | 4.94 | 342,766 |
| History of Mexico | 0 | - | 4.58 | 15,240 |
| United States Map Quiz | 0 | - | 4.98 | 4,144,113 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,776 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,388 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,024 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,518 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,495 |
| The George Washington Presidency | 0 | - | 4.03 | 14,483 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,666 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,527 |
| U.S. President Scramble | 0 | - | 4.40 | 116,284 |
| The John Adams Presidency | 0 | - | 4.12 | 8,683 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,884 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,691 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,237 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,620 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,788 |
| U.S. Presidential Last Names as Baby Names | 0 | - | 4.19 | 33,384 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,725 |
| U.S. History for Dummies | 0 | - | 4.47 | 82,572 |
| The American Civil War | 0 | - | 4.62 | 52,191 |
| Name a Valid U.S. President by Birth State | 0 | - | 4.60 | 9,685 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,688 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,643 |
| Official European Union Languages | 0 | - | 4.97 | 237,171 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,034 |
| Europe Map Quiz | 0 | - | 5.00 | 4,736,152 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,749 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,645 |
| Most Forested European Countries | 0 | - | 4.80 | 74,979 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,547 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 210,054 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,362 |
| History of Austria | 0 | - | 4.70 | 17,773 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,948 |
| Geography of the French Empire | 0 | - | 4.45 | 26,960 |
| The French Revolution | 0 | - | 4.46 | 23,814 |
| History of France | 0 | - | 4.59 | 56,272 |
| French History Multiple Choice | 0 | - | 4.55 | 32,898 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,400 |
