| U.S. Presidents by Picture | 0 | - | 4.87 | 423,726 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,636 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,675 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,554 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,654,290 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,853 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,259 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,677 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,023 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,038 |
| Ultimate Harry Potter Name Game | 0 | - | 4.94 | 491,406 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,542 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,695 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,447 |
| Figures from Greek Mythology | 0 | - | 4.91 | 184,945 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,313 |
| Groups of Things - Harry Potter | 0 | - | 4.82 | 280,108 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,895 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,326 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,526 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 303,365 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,416 |
| Random U.S. Presidents by Picture | 0 | - | 4.39 | 65,820 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,946 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,421 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,412 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,112 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,020 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,432 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,520 |
| Byzantine History | 0 | - | 4.91 | 28,620 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,276 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,154 |
| Countries of the Popes | 0 | - | 4.79 | 127,212 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,755 |
| U.S. President Scramble | 0 | - | 4.40 | 116,198 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,254 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 233,195 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,636 |
| The Trojan War | 0 | - | 4.83 | 39,428 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,887 |
| Name that Greek Letter | 0 | - | 4.94 | 321,663 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,535 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,045 |
| Roman Emperors | 0 | - | 4.95 | 118,486 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,372 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,136 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,493 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 63,478 |
| Basic Harry Potter Quiz | 0 | - | 4.56 | 377,300 |
| Name the English Monarchs | 0 | - | 4.92 | 497,887 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,284 |
| Paramount Leaders of China | 0 | - | 4.36 | 10,998 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,574 |
| National Founders | 0 | - | 4.40 | 83,649 |
| U.S. Vice Presidents | 0 | - | 4.41 | 134,936 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,363 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 107,949 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,498 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,000 |
| Presidential Middle Names | 0 | - | 4.41 | 59,702 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,087 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,737 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 93,819 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,745 |
| People in Pictures with Ronald Reagan | 0 | - | 4.35 | 40,447 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,169 |
| U.S. State Flags | 0 | - | 4.89 | 167,086 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,652 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,145 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,114 |
| Ancient Greek Words | 0 | - | 4.92 | 110,691 |
| 101 Figures from Greek Mythology | 0 | - | 5.00 | 124,288 |
| Harry Potter: Voldemort's Horcruxes | 0 | - | 4.44 | 112,119 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,945 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 126,747 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,258 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,882 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,670 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,166 |
| First Ladies of the United States | 0 | - | 4.28 | 85,245 |
| The Bill Clinton Presidency | 0 | - | 4.22 | 31,352 |
| The George H. W. Bush Presidency | 0 | - | 4.36 | 21,419 |
| The Ronald Reagan Presidency | 0 | - | 4.26 | 24,721 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,815 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,111 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,282 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,000 |
| Add a Letter - Make a U.S. President | 0 | - | 4.61 | 23,833 |
| The Barack Obama Presidency | 0 | - | 4.16 | 25,256 |
| Random U.S. States on a Map | 0 | - | 4.96 | 621,478 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,686 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,255 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,346 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,745 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,144 |
| History of Russia Quiz | 0 | - | 4.49 | 31,794 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,546 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,288 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,462 |
| Roman to Greek God | 0 | - | 4.52 | 122,211 |
| History of Italy | 0 | - | 4.55 | 31,814 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,616 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,482 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,981 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,387 |
| Shakespeare's Plays Quiz | 0 | - | 4.38 | 385,716 |
| Shakespeare Quotes | 0 | - | 4.43 | 71,120 |
| Name the Harry Potter Books | 0 | - | 4.31 | 277,325 |
| Harry Potter Spells | 0 | - | 4.32 | 138,984 |
| Harry Potter Places | 0 | - | 4.34 | 107,557 |
| Harry Potter - Order of the Phoenix Members | 0 | - | 4.06 | 42,823 |
| Top 100 Harry Potter Characters by Mention | 0 | - | 4.93 | 389,808 |
| Harry Potter Creatures | 0 | - | 4.29 | 63,539 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.91 | 37,117 |
| Pope Facts | 0 | - | 4.39 | 31,039 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 118,271 |
| Communist Countries in History | 0 | - | 4.63 | 492,512 |
| History of India | 0 | - | 4.61 | 21,284 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.68 | 55,175 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,282 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,530 |
| History of South Africa | 0 | - | 4.60 | 17,602 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,298 |
| Australian Capitals | 0 | - | 4.92 | 62,593 |
| History of Mexico | 0 | - | 4.58 | 15,230 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,807 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,737 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,376 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 54,941 |
| U.S. Presidential Running Mates | 0 | - | 4.40 | 28,461 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,661 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,500 |
| The John Adams Presidency | 0 | - | 4.12 | 8,676 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,682 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,771 |
| U.S. Presidential Last Names as Baby Names | 0 | - | 4.19 | 33,360 |
| U.S. History for Dummies | 0 | - | 4.47 | 82,483 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,663 |
| U.S. Map with Random Merged States | 0 | - | 4.94 | 300,033 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,580 |
| Official European Union Languages | 0 | - | 4.97 | 236,522 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,700 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,199 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,473 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 84,002 |
| History of Austria | 0 | - | 4.70 | 17,747 |
| Geography of the French Empire | 0 | - | 4.48 | 26,933 |
| The French Revolution | 0 | - | 4.46 | 23,785 |
| History of France | 0 | - | 4.59 | 56,044 |
| French History Multiple Choice | 0 | - | 4.55 | 32,879 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,383 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 143,174 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,775 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,771 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 72,901 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,434 |
| Things with Names from Classical Mythology | 0 | - | 4.28 | 87,163 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,951 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,532 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,669 |
| Roman Names for Places | 0 | - | 4.62 | 57,878 |
| History of The Netherlands | 0 | - | 4.46 | 17,311 |
| The Vikings! | 0 | - | 4.45 | 28,245 |
| The Portuguese Empire | 0 | - | 4.54 | 11,990 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,024 |
| Biggest British Empire Countries | 0 | - | 4.73 | 94,204 |
| Word Scramble - Harry Potter Characters | 0 | - | 4.19 | 60,446 |
| Harry Potter Characters by Screen Time | 0 | - | 4.29 | 146,998 |
| 100 Most Common Words in Beatles Songs | 0 | - | 4.52 | 25,122 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,174 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,776 |
| Geography of the British Empire | 0 | - | 4.48 | 39,472 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,293 |
| Medieval English History | 0 | - | 4.53 | 43,318 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 54,954 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,834 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.40 | 51,485 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,440,456 |
| Asia Map Quiz | 0 | - | 4.99 | 907,002 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,100 |
| History of Iran | 0 | - | 4.65 | 16,272 |
| Ottoman Empire Quiz | 0 | - | 4.42 | 17,025 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,820 |
| Chinese Inventions | 0 | - | 4.30 | 33,719 |
| History of China | 0 | - | 4.37 | 56,691 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,963 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,165 |
| Countries by Founding Story | 0 | - | 4.95 | 76,533 |
| Independence from Whom | 0 | - | 4.99 | 209,682 |
| Political Movements by Country | 0 | - | 4.46 | 72,260 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,741 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,996 |
| States of India | 0 | - | 4.94 | 190,035 |
| The Life of Gandhi | 0 | - | 4.37 | 13,018 |
| Countries of Africa | 0 | - | 5.00 | 2,507,811 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,434 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,330 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,001 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,813 |
