| 10 Plagues of Egypt | 0 | - | 4.41 | 53,942 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 98,208 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,732,985 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,756 |
| Hindu Countries | 0 | - | 4.86 | 50,706 |
| Name the Popes Quiz | 0 | - | 4.47 | 139,127 |
| Countries of the Popes | 0 | - | 4.78 | 128,946 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,700 |
| Asia Map Quiz | 0 | - | 4.99 | 927,187 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,704 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 194,112 |
| U.S. States by Church Attendance | 0 | - | 4.59 | 32,591 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.89 | 114,618 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,648 |
| Flags of Asia Quiz | 0 | - | 4.99 | 622,399 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 100,239 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,388,269 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,640 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 86,241 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 66,087 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 72,077 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,783 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,531 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 21,088 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,581 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,980 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 67,176 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,789 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 100,114 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,372 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.90 | 107,130 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 128,089 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,551 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,357 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 72,276 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,979 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,964 |
| Monarchies of Asia | 0 | - | 4.97 | 71,643 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.92 | 50,855 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,386 |
| Countries of the Middle East | 0 | - | 4.96 | 203,372 |
| Provinces of Turkey | 0 | - | 4.95 | 206,421 |
| World Currencies Quiz on a Map | 0 | - | 4.95 | 62,136 |
| Provinces of China | 0 | - | 4.97 | 209,130 |
| Japanese Prefectures | 0 | - | 4.98 | 139,525 |
| States of India | 0 | - | 4.94 | 196,701 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 192,087 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,341 |
| Name that Greek Letter | 0 | - | 4.93 | 325,401 |
| Byzantine History | 0 | - | 4.91 | 29,064 |
| Byzantine Emperors | 0 | - | 4.93 | 14,672 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,123 |
| Name the English Monarchs | 0 | - | 4.91 | 507,648 |
| Prime Ministers of the UK | 0 | - | 4.95 | 443,411 |
| Pope Facts | 0 | - | 4.39 | 31,438 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,838 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,768 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,636 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 98,000 |
| Name a Valid Asian Country | 0 | - | 4.98 | 122,014 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 83,818 |
| Qatar Country Quiz | 0 | - | 4.86 | 31,783 |
| Countries Bordering Iran | 0 | - | 4.83 | 96,186 |
| History of Iran | 0 | - | 4.66 | 16,444 |
| Countries that Border Iraq | 0 | - | 4.97 | 109,233 |
| The Iraq War | 0 | - | 4.47 | 15,721 |
| Countries Closest to Turkey | 0 | - | 4.96 | 127,078 |
| Countries Bordering Turkey | 0 | - | 4.98 | 118,002 |
| Countries Bordering Saudi Arabia | 0 | - | 4.96 | 133,954 |
| Countries Closest to Cyprus | 0 | - | 4.91 | 56,332 |
| Jordan Country Quiz | 0 | - | 4.86 | 32,178 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,968 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 102,191 |
| Countries Closest to Indonesia | 0 | - | 4.97 | 105,214 |
| Countries Closest to Vietnam | 0 | - | 4.96 | 94,501 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 78,292 |
| China Cities Map Quiz | 0 | - | 4.94 | 106,089 |
| Provinces of China Map Quiz | 0 | - | 4.92 | 94,919 |
| History of China | 0 | - | 4.35 | 57,708 |
| Countries that Border China | 0 | - | 4.96 | 264,618 |
| Japan Country Quiz | 0 | - | 4.93 | 143,599 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 77,980 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 60,669 |
| Countries Closest to Japan | 0 | - | 4.92 | 140,668 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 33,470 |
| Countries Closest to Taiwan | 0 | - | 4.81 | 93,884 |
| History of India | 0 | - | 4.62 | 21,531 |
| Countries Bordering India | 0 | - | 4.98 | 163,919 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,724 |
| Countries Closest to India | 0 | - | 4.97 | 103,378 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,668 |
| Nepal Country Quiz | 0 | - | 4.95 | 38,050 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,707 |
| U.S. Presidents by Event | 0 | - | 4.58 | 35,506 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,797 |
| Presidential Middle Names | 0 | - | 4.42 | 60,837 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,767 |
| Assassinated U.S. Presidents | 0 | - | 4.62 | 94,958 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,668 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,841 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,703 |
| The Trojan War | 0 | - | 4.83 | 40,120 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,349 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 128,096 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,728 |
| Roman Emperors | 0 | - | 4.95 | 121,515 |
| Ultimate Harry Potter Name Game | 0 | - | 4.94 | 495,036 |
| Turkmenistan Country Quiz | 0 | - | 4.81 | 26,181 |
| Topological Map of Asia Quiz | 0 | - | 4.83 | 20,589 |
| Countries that Have Controlled Mesopotamia | 0 | - | 4.15 | 15,628 |
| History of Egypt | 0 | - | 4.58 | 24,119 |
| Countries Closest to Egypt | 0 | - | 4.83 | 101,705 |
| Egypt Country Quiz | 0 | - | 4.82 | 78,054 |
| Israel Country Quiz | 0 | - | 3.82 | 75,354 |
| Countries Closest to Israel | 0 | - | 4.69 | 106,939 |
| Countries Closest to Yemen | 0 | - | 4.92 | 22,846 |
| Oman Country Quiz | 0 | - | 4.86 | 27,134 |
| Singapore Airlines Destinations on a Map | 0 | - | 4.93 | 25,538 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,615 |
| Brunei Country Quiz | 0 | - | 4.87 | 22,119 |
| Chinese Inventions | 0 | - | 4.30 | 33,877 |
| Countries that Beat China | 0 | - | 4.85 | 117,039 |
| Closest Countries to North Korea | 0 | - | 4.94 | 123,432 |
| Bhutan Country Quiz | 0 | - | 4.87 | 24,379 |
| States of India Map Quiz | 0 | - | 4.85 | 26,984 |
| Eastern Africa Map Quiz | 0 | - | 4.98 | 79,729 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 429,003 |
| U.S. Vice Presidents | 0 | - | 4.39 | 137,229 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,385 |
| U.S. Presidential Running Mates | 0 | - | 4.41 | 28,808 |
| First Ladies of the United States | 0 | - | 4.28 | 86,039 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,342 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 384,000 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,551 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 306,479 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,265 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,392 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,689 |
| Add a Letter - Make a U.S. President | 0 | - | 4.58 | 24,127 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,990 |
| Win the 1828 U.S. Presidential Election | 0 | - | 4.32 | 59,720 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,965 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,941 |
| History of Russia Quiz | 0 | - | 4.47 | 32,031 |
| Ancient Greek Words | 0 | - | 4.93 | 112,732 |
| History of Italy | 0 | - | 4.55 | 32,198 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,655 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,866 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,481 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,156 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 38,327 |
| Asian Physical Geography | 0 | - | 4.61 | 35,649 |
| East Asian Islands on the Map | 0 | - | 4.55 | 33,240 |
| 10 Westernmost Countries in Asia | 0 | - | 4.69 | 71,700 |
| Asian Island Nations | 0 | - | 4.64 | 94,557 |
| Countries and States in the Caucasus | 0 | - | 4.46 | 51,890 |
| Asia's Busiest Airports | 0 | - | 4.70 | 53,233 |
| Asian Countries by Borders in 30 Seconds | 0 | - | 4.45 | 418,366 |
| The Only Remaining Asian Country . . . | 0 | - | 4.64 | 46,195 |
| Arab Spring Countries | 0 | - | 4.51 | 44,299 |
| Middle Eastern Geography Quiz | 0 | - | 4.57 | 44,295 |
| The Persian Gulf War | 0 | - | 4.02 | 8,492 |
| Ottoman Empire Quiz | 0 | - | 4.37 | 17,243 |
| Countries Surrounding Istanbul | 0 | - | 4.89 | 25,005 |
| Countries that Beat Egypt | 0 | - | 4.91 | 67,269 |
| Egyptian Gods and Goddesses | 0 | - | 4.43 | 27,696 |
| Countries that Beat Israel | 0 | - | 4.38 | 30,472 |
| The Vietnam War | 0 | - | 4.44 | 35,697 |
| The Life of Gandhi | 0 | - | 4.37 | 13,088 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,848 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,252 |
| Win the U.S. Presidential Election | 0 | - | 4.79 | 637,786 |
| U.S. President Scramble | 0 | - | 4.40 | 117,591 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 48,123 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,763 |
| Canadian Prime Ministers | 0 | - | 4.64 | 58,043 |
| Europe Map Quiz | 0 | - | 5.00 | 4,795,085 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 533,246 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 217,588 |
| History of Austria | 0 | - | 4.70 | 17,992 |
| Geography of the French Empire | 0 | - | 4.45 | 27,241 |
| The French Revolution | 0 | - | 4.47 | 24,175 |
| History of France | 0 | - | 4.61 | 57,765 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,581 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 146,148 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,301 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,081 |
| Figures from Greek Mythology | 0 | - | 4.92 | 194,394 |
| Word Chain - Greek and Roman Mythology | 0 | - | 4.50 | 57,181 |
| Countries Italy Declared War On | 0 | - | 4.74 | 49,754 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,596 |
| The Vikings! | 0 | - | 4.46 | 28,432 |
| The Portuguese Empire | 0 | - | 4.58 | 12,120 |
| Real Madrid 2010s Starting XI | 0 | - | 4.90 | 69,167 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,498 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,411 |
| Geography of the British Empire | 0 | - | 4.48 | 39,889 |
| Medieval English History | 0 | - | 4.53 | 43,700 |
| Asian Islands | 0 | - | 4.49 | 20,923 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,563 |
