| Prime Ministers of the UK | 0 | - | 4.95 | 438,311 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 381,279 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 191,530 |
| Ultimate Harry Potter Name Game | 0 | - | 4.94 | 493,110 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 426,152 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,692,214 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,206 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 217,044 |
| Groups of Things - Harry Potter | 0 | - | 4.82 | 281,527 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 64,144 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,270 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,900 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,768 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,925 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,462 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 94,899 |
| Basic Harry Potter Quiz | 0 | - | 4.56 | 378,623 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 62,006 |
| U.S. President Scramble | 0 | - | 4.40 | 116,705 |
| Random European Countries on a Map | 0 | - | 4.97 | 283,240 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 317,772 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,650 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 127,455 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,290 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,484 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,028 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 79,953 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,457 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,827 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,731 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,928 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,646 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,428 |
| Biggest British Empire Countries | 0 | - | 4.74 | 99,854 |
| Harry Potter Last Names | 0 | - | 4.64 | 948,919 |
| Harry Potter: Voldemort's Horcruxes | 0 | - | 4.44 | 112,699 |
| Top 100 Harry Potter Characters by Mention | 0 | - | 4.93 | 393,503 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,009 |
| 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 | 123,957 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,714 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,835 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,642 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 234,272 |
| Every European Country Shape | 0 | - | 4.96 | 201,447 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,653 |
| Name that Greek Letter | 0 | - | 4.93 | 323,254 |
| Byzantine History | 0 | - | 4.91 | 28,782 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,009 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,703 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,175 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,391 |
| Name the Harry Potter Books | 0 | - | 4.31 | 278,856 |
| Harry Potter Spells | 0 | - | 4.33 | 139,592 |
| Harry Potter Places | 0 | - | 4.34 | 108,199 |
| Harry Potter - Order of the Phoenix Members | 0 | - | 4.06 | 43,028 |
| Harry Potter Creatures | 0 | - | 4.29 | 64,019 |
| Name the English Monarchs | 0 | - | 4.91 | 501,986 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.41 | 51,718 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,059 |
| Random African Flag to Country | 0 | - | 4.88 | 74,736 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,599 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,349 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,684 |
| Presidential Middle Names | 0 | - | 4.41 | 60,165 |
| 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 | 94,514 |
| 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 | 95,868 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,441 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,013 |
| Random European Flag to Country | 0 | - | 4.89 | 182,168 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,780 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,244 |
| The Trojan War | 0 | - | 4.83 | 39,675 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,668 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,729 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,466 |
| Roman Emperors | 0 | - | 4.95 | 119,793 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,251 |
| 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 | 148,074 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,666 |
| National Founders | 0 | - | 4.40 | 83,811 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,387 |
| Random African Countries on a Map | 0 | - | 4.99 | 295,508 |
| Random American Countries on a Map | 0 | - | 4.96 | 99,397 |
| 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 | 625,717 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,812 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,821 |
| History of Russia Quiz | 0 | - | 4.47 | 31,899 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,488 |
| 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 | 111,455 |
| Roman to Greek God | 0 | - | 4.52 | 122,720 |
| 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 | 77,197 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,825 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 387,758 |
| Shakespeare Quotes | 0 | - | 4.43 | 71,377 |
| Harry Potter Characters by Death | 0 | - | 3.96 | 126,370 |
| Harry Potter A-Z | 0 | - | 4.43 | 226,089 |
| Harry Potter - Name The Hogwarts Classes | 0 | - | 4.24 | 27,052 |
| Harry Potter Patronus Charms | 0 | - | 4.25 | 31,155 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 37,769 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,720 |
| Pope Facts | 0 | - | 4.39 | 31,221 |
| Random Asian Countries on a Map | 0 | - | 4.91 | 169,858 |
| Communist Countries in History | 0 | - | 4.63 | 495,231 |
| 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 | 302,177 |
| Europe Map Quiz | 0 | - | 5.00 | 4,758,602 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,142 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,943 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,670 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,964 |
| 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 | 56,914 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 144,431 |
| 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 | 87,701 |
| Word Chain - Greek and Roman Mythology | 0 | - | 4.50 | 56,572 |
| Least Irish U.S. States | 0 | - | 4.49 | 18,303 |
| 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 | 122,381 |
| Geography of the British Empire | 0 | - | 4.48 | 39,644 |
| Medieval English History | 0 | - | 4.53 | 43,487 |
| Vatican City Country Quiz | 0 | - | 4.53 | 44,315 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,853 |
| History of Iran | 0 | - | 4.66 | 16,348 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,932 |
| History of China | 0 | - | 4.37 | 57,119 |
| Political Movements by Country | 0 | - | 4.46 | 72,493 |
| Countries of Africa | 0 | - | 5.00 | 2,532,963 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,926 |
| Flags of Africa Quiz | 0 | - | 5.00 | 470,137 |
| Africa Map Quiz | 0 | - | 5.00 | 2,116,032 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,725 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,800 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,495 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,113 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,177 |
| African East Coast | 0 | - | 4.96 | 95,935 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,331 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,746 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,832 |
| African Island Countries | 0 | - | 4.96 | 101,518 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,234 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,175 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,326 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,571 |
| Australian States and Territories | 0 | - | 4.96 | 141,805 |
| Australian Capitals | 0 | - | 4.92 | 62,709 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,256 |
| Australia Map Quiz | 0 | - | 4.95 | 344,130 |
| Australia True or False | 0 | - | 4.87 | 56,811 |
| Flags of North and South America | 0 | - | 4.99 | 372,456 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,557 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,152 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,549 |
