| Asian Countries with the Most Christians | 0 | - | 4.86 | 98,027 |
| 10 Plagues of Egypt | 0 | - | 4.41 | 53,917 |
| World Capitals Closest to Jerusalem | 0 | - | 4.47 | 45,072 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,578 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,727,246 |
| Prime Ministers of the UK | 0 | - | 4.95 | 442,511 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,975 |
| Countries of the Popes | 0 | - | 4.79 | 128,771 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,739 |
| Asia Map Quiz | 0 | - | 4.99 | 925,566 |
| Countries that Beat Israel | 0 | - | 4.38 | 30,430 |
| Hindu Countries | 0 | - | 4.87 | 50,599 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,479 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,602 |
| U.S. States by Church Attendance | 0 | - | 4.59 | 32,565 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,473 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,953 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,530 |
| Flags of Asia Quiz | 0 | - | 4.99 | 620,761 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,853 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,595 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,966 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,200 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,869 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,359 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 72,119 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 100,001 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,700 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.92 | 50,645 |
| Countries of the Middle East | 0 | - | 4.96 | 203,026 |
| Prime Ministers of Israel | 0 | - | 3.97 | 18,073 |
| Countries Closest to Israel | 0 | - | 4.69 | 106,859 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,420 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,596 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,849 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 71,897 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,621 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 67,066 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.90 | 106,909 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,145 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,802 |
| Monarchies of Asia | 0 | - | 4.97 | 71,527 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,307 |
| Provinces of Turkey | 0 | - | 4.95 | 206,030 |
| World Currencies Quiz on a Map | 0 | - | 4.95 | 61,896 |
| Israel Country Quiz | 0 | - | 3.82 | 75,295 |
| Provinces of China | 0 | - | 4.97 | 208,197 |
| Japanese Prefectures | 0 | - | 4.98 | 139,130 |
| States of India | 0 | - | 4.94 | 196,023 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,207 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,828 |
| Top 10 Most Jewish U.S. States | 0 | - | 4.31 | 43,163 |
| Byzantine History | 0 | - | 4.91 | 29,030 |
| Byzantine Emperors | 0 | - | 4.93 | 14,615 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,840 |
| Name the English Monarchs | 0 | - | 4.91 | 506,767 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,773 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,703 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,407 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,772 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,822 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 83,736 |
| Qatar Country Quiz | 0 | - | 4.86 | 31,733 |
| Countries Bordering Iran | 0 | - | 4.83 | 96,084 |
| History of Iran | 0 | - | 4.66 | 16,425 |
| Countries that Border Iraq | 0 | - | 4.97 | 109,124 |
| Countries Closest to Turkey | 0 | - | 4.96 | 126,940 |
| Countries Bordering Turkey | 0 | - | 4.98 | 117,913 |
| Countries Bordering Saudi Arabia | 0 | - | 4.96 | 133,827 |
| Countries Closest to Yemen | 0 | - | 4.92 | 22,793 |
| Countries Closest to Cyprus | 0 | - | 4.91 | 56,175 |
| Jordan Country Quiz | 0 | - | 4.86 | 32,097 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,849 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 102,065 |
| Countries Closest to Indonesia | 0 | - | 4.97 | 105,078 |
| Countries Closest to Vietnam | 0 | - | 4.96 | 94,403 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 78,204 |
| China Cities Map Quiz | 0 | - | 4.94 | 105,928 |
| Provinces of China Map Quiz | 0 | - | 4.92 | 94,687 |
| Chinese Inventions | 0 | - | 4.30 | 33,865 |
| History of China | 0 | - | 4.35 | 57,602 |
| Countries that Border China | 0 | - | 4.96 | 264,349 |
| Japan Country Quiz | 0 | - | 4.93 | 143,388 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 77,871 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 60,555 |
| Countries Closest to Japan | 0 | - | 4.92 | 139,226 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 33,363 |
| Countries Closest to Taiwan | 0 | - | 4.81 | 93,754 |
| States of India Map Quiz | 0 | - | 4.84 | 26,904 |
| History of India | 0 | - | 4.62 | 21,519 |
| Countries Bordering India | 0 | - | 4.98 | 163,835 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,670 |
| Countries Closest to India | 0 | - | 4.97 | 103,254 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,601 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,988 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,120 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 62,041 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,582 |
| U.S. Presidents by Event | 0 | - | 4.58 | 35,376 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,672 |
| Presidential Middle Names | 0 | - | 4.41 | 60,749 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,708 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,910 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,640 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,763 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 72,039 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,905 |
| The Trojan War | 0 | - | 4.83 | 40,006 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,213 |
| Name that Greek Letter | 0 | - | 4.93 | 325,068 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,019 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,631 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,612 |
| Roman Emperors | 0 | - | 4.95 | 121,267 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 54,008 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 81,007 |
| Pope Facts | 0 | - | 4.39 | 31,399 |
| Topological Map of Asia Quiz | 0 | - | 4.82 | 20,460 |
| Countries that Have Controlled Mesopotamia | 0 | - | 4.15 | 15,612 |
| The Iraq War | 0 | - | 4.47 | 15,707 |
| History of Egypt | 0 | - | 4.58 | 24,105 |
| Countries Closest to Egypt | 0 | - | 4.83 | 101,613 |
| Egypt Country Quiz | 0 | - | 4.82 | 77,961 |
| Oman Country Quiz | 0 | - | 4.86 | 27,096 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,500 |
| Brunei Country Quiz | 0 | - | 4.87 | 22,081 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,530 |
| Countries that Beat China | 0 | - | 4.85 | 116,785 |
| Closest Countries to North Korea | 0 | - | 4.94 | 123,290 |
| Bhutan Country Quiz | 0 | - | 4.87 | 24,354 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,615 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,682 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,219 |
| The American Revolution | 0 | - | 4.52 | 54,365 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,526 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,659 |
| Top 11 Most Catholic U.S. States | 0 | - | 4.25 | 22,134 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 162,395 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,772 |
| History of Russia Quiz | 0 | - | 4.47 | 32,009 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,590 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.89 | 113,062 |
| Ancient Greek Words | 0 | - | 4.93 | 112,526 |
| History of Italy | 0 | - | 4.55 | 32,159 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,829 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,432 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,107 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 38,237 |
| Asian Physical Geography | 0 | - | 4.61 | 35,624 |
| East Asian Islands on the Map | 0 | - | 4.55 | 33,214 |
| 10 Westernmost Countries in Asia | 0 | - | 4.69 | 71,616 |
| Asian Island Nations | 0 | - | 4.63 | 94,477 |
| Countries and States in the Caucasus | 0 | - | 4.46 | 51,827 |
| Asia's Busiest Airports | 0 | - | 4.70 | 53,148 |
| Asian Countries by Borders in 30 Seconds | 0 | - | 4.45 | 417,937 |
| Turkmenistan Country Quiz | 0 | - | 4.81 | 26,150 |
| The Only Remaining Asian Country . . . | 0 | - | 4.64 | 46,137 |
| Arab Spring Countries | 0 | - | 4.51 | 44,258 |
| Middle Eastern Geography Quiz | 0 | - | 4.57 | 44,202 |
| The Persian Gulf War | 0 | - | 4.02 | 8,487 |
| Ottoman Empire Quiz | 0 | - | 4.37 | 17,227 |
| Countries Surrounding Istanbul | 0 | - | 4.89 | 24,975 |
| Countries that Beat Egypt | 0 | - | 4.91 | 67,106 |
| Singapore Airlines Destinations on a Map | 0 | - | 4.93 | 25,387 |
| The Vietnam War | 0 | - | 4.44 | 35,662 |
| The Life of Gandhi | 0 | - | 4.37 | 13,081 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,780 |
| History of South Africa | 0 | - | 4.60 | 17,766 |
| U.S. Vice Presidents | 0 | - | 4.39 | 137,060 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,372 |
| U.S. Presidential Running Mates | 0 | - | 4.41 | 28,781 |
| First Ladies of the United States | 0 | - | 4.28 | 85,994 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.42 | 24,074 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,322 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,501 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,369 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 193,861 |
| Add a Letter - Make a U.S. President | 0 | - | 4.58 | 24,105 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,896 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,666 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,952 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,475 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,624 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,907 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,485 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,552 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,602 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 81,171 |
| History of Austria | 0 | - | 4.70 | 17,977 |
| Geography of the French Empire | 0 | - | 4.45 | 27,221 |
| The French Revolution | 0 | - | 4.47 | 24,151 |
| History of France | 0 | - | 4.61 | 57,651 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,562 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 145,858 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,980 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,949 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,496 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.27 | 104,035 |
| The Vikings! | 0 | - | 4.46 | 28,409 |
| The Portuguese Empire | 0 | - | 4.58 | 12,113 |
