| Prime Ministers of the UK | 0 | - | 4.95 | 438,324 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 381,283 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 191,533 |
| Ultimate Harry Potter Name Game | 0 | - | 4.94 | 493,113 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 426,154 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,692,255 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,206 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 217,046 |
| Groups of Things - Harry Potter | 0 | - | 4.82 | 281,528 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 64,144 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,272 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,902 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,770 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,925 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,463 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 94,902 |
| Basic Harry Potter Quiz | 0 | - | 4.56 | 378,626 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 62,008 |
| U.S. President Scramble | 0 | - | 4.40 | 116,705 |
| Random European Countries on a Map | 0 | - | 4.97 | 283,243 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 317,775 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,656 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 127,456 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,293 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,484 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,032 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 79,984 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,463 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,831 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,733 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,928 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,651 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,428 |
| Biggest British Empire Countries | 0 | - | 4.74 | 99,855 |
| Harry Potter Last Names | 0 | - | 4.64 | 948,925 |
| Harry Potter: Voldemort's Horcruxes | 0 | - | 4.44 | 112,700 |
| Top 100 Harry Potter Characters by Mention | 0 | - | 4.93 | 393,508 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,011 |
| Countries of the Popes | 0 | - | 4.79 | 127,988 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 118,934 |
| Country by Photo of its Leader | 0 | - | 4.72 | 123,960 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,717 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,835 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,643 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 234,273 |
| Every European Country Shape | 0 | - | 4.96 | 201,449 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,666 |
| Name that Greek Letter | 0 | - | 4.93 | 323,257 |
| Byzantine History | 0 | - | 4.91 | 28,784 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,012 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,706 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,177 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,399 |
| Name the Harry Potter Books | 0 | - | 4.31 | 278,860 |
| Harry Potter Spells | 0 | - | 4.33 | 139,594 |
| Harry Potter Places | 0 | - | 4.34 | 108,201 |
| Harry Potter - Order of the Phoenix Members | 0 | - | 4.06 | 43,030 |
| Harry Potter Creatures | 0 | - | 4.29 | 64,020 |
| Name the English Monarchs | 0 | - | 4.91 | 502,002 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.41 | 51,718 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,061 |
| Random African Flag to Country | 0 | - | 4.88 | 74,738 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,600 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,350 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,684 |
| Presidential Middle Names | 0 | - | 4.41 | 60,167 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,181 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,244 |
| Assassinated U.S. Presidents | 0 | - | 4.62 | 94,516 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,387 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,165 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,860 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,869 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,443 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,018 |
| Random European Flag to Country | 0 | - | 4.89 | 182,170 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,781 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,251 |
| The Trojan War | 0 | - | 4.83 | 39,676 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,672 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,731 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,467 |
| Roman Emperors | 0 | - | 4.95 | 119,795 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,255 |
| Monty Python Quotes | 0 | - | 4.88 | 42,447 |
| Shakespearean Phrases | 0 | - | 4.57 | 36,720 |
| Word Scramble - Harry Potter Characters | 0 | - | 4.20 | 60,821 |
| Harry Potter Characters by Screen Time | 0 | - | 4.27 | 148,080 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,666 |
| National Founders | 0 | - | 4.40 | 83,812 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,388 |
| Random African Countries on a Map | 0 | - | 4.99 | 295,514 |
| Random American Countries on a Map | 0 | - | 4.96 | 99,399 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,315 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,067 |
| U.S. Senators by State | 0 | - | 4.45 | 39,930 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,776 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,149 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,247 |
| First Ladies of the United States | 0 | - | 4.28 | 85,585 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,212 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 77,001 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,958 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,174 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,944 |
| Random U.S. States on a Map | 0 | - | 4.96 | 625,720 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,812 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,822 |
| History of Russia Quiz | 0 | - | 4.47 | 31,899 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,490 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,461 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,853 |
| Ancient Greek Words | 0 | - | 4.93 | 111,459 |
| Roman to Greek God | 0 | - | 4.52 | 122,721 |
| History of Italy | 0 | - | 4.55 | 31,957 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,056 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,637 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,198 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,826 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 387,758 |
| Shakespeare Quotes | 0 | - | 4.43 | 71,377 |
| Harry Potter Characters by Death | 0 | - | 3.96 | 126,371 |
| Harry Potter A-Z | 0 | - | 4.43 | 226,100 |
| Harry Potter - Name The Hogwarts Classes | 0 | - | 4.24 | 27,052 |
| Harry Potter Patronus Charms | 0 | - | 4.25 | 31,158 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 37,770 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,721 |
| Pope Facts | 0 | - | 4.39 | 31,221 |
| Random Asian Countries on a Map | 0 | - | 4.91 | 169,862 |
| Communist Countries in History | 0 | - | 4.63 | 495,234 |
| History of India | 0 | - | 4.62 | 21,409 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,419 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,014 |
| History of South Africa | 0 | - | 4.60 | 17,674 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,950 |
| The Bill Clinton Presidency | 0 | - | 4.24 | 31,443 |
| The George H. W. Bush Presidency | 0 | - | 4.36 | 21,483 |
| The Ronald Reagan Presidency | 0 | - | 4.26 | 24,812 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,939 |
| People in Pictures with Ronald Reagan | 0 | - | 4.35 | 40,650 |
| The Barack Obama Presidency | 0 | - | 4.16 | 25,379 |
| U.S. Map with Random Merged States | 0 | - | 4.94 | 302,179 |
| Europe Map Quiz | 0 | - | 5.00 | 4,758,645 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,150 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,944 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,674 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,965 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,664 |
| History of Austria | 0 | - | 4.70 | 17,850 |
| Geography of the French Empire | 0 | - | 4.45 | 27,040 |
| The French Revolution | 0 | - | 4.46 | 23,920 |
| History of France | 0 | - | 4.59 | 56,915 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 144,433 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,964 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,891 |
| Things with Names from Classical Mythology | 0 | - | 4.28 | 87,703 |
| Word Chain - Greek and Roman Mythology | 0 | - | 4.50 | 56,573 |
| Least Irish U.S. States | 0 | - | 4.49 | 18,304 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,283 |
| The Vikings! | 0 | - | 4.46 | 28,333 |
| The Portuguese Empire | 0 | - | 4.58 | 12,056 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,457 |
| 100 Most Common Words in Beatles Songs | 0 | - | 4.52 | 25,492 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,318 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,383 |
| Geography of the British Empire | 0 | - | 4.48 | 39,644 |
| Medieval English History | 0 | - | 4.53 | 43,488 |
| Vatican City Country Quiz | 0 | - | 4.53 | 44,316 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,855 |
| History of Iran | 0 | - | 4.66 | 16,348 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,932 |
| History of China | 0 | - | 4.37 | 57,121 |
| Political Movements by Country | 0 | - | 4.46 | 72,494 |
| Countries of Africa | 0 | - | 5.00 | 2,533,004 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,927 |
| Flags of Africa Quiz | 0 | - | 5.00 | 470,168 |
| Africa Map Quiz | 0 | - | 5.00 | 2,116,046 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,726 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,801 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,496 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,115 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,177 |
| African East Coast | 0 | - | 4.96 | 95,937 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,333 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,752 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,835 |
| African Island Countries | 0 | - | 4.96 | 101,518 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,235 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,182 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,344 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,573 |
| Australian States and Territories | 0 | - | 4.96 | 141,809 |
| Australian Capitals | 0 | - | 4.92 | 62,709 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,258 |
| Australia Map Quiz | 0 | - | 4.95 | 344,133 |
| Australia True or False | 0 | - | 4.87 | 56,811 |
| Flags of North and South America | 0 | - | 4.99 | 372,465 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,558 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,152 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,550 |
