| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,318 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,205 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,773 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,498 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,536 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,241 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 109,909 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,715 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,916 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,751 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,447,713 |
| Asia Map Quiz | 0 | - | 4.99 | 915,900 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,829 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,863 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,382,153 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,327,494 |
| Flags of Asia Quiz | 0 | - | 4.99 | 612,805 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,959 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,247 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,914 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,200 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,218 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,956 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,170 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,656 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,092 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,930 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,792 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,419 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,368 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,196 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 49,848 |
| Countries of the Middle East | 0 | - | 4.96 | 201,015 |
| States of India | 0 | - | 4.95 | 193,019 |
| History of India | 0 | - | 4.62 | 21,414 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,046 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,091 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 80,728 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,523 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,883 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,443 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,910 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,115 |
| Monarchies of Asia | 0 | - | 4.97 | 71,046 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,834 |
| History of Iran | 0 | - | 4.66 | 16,351 |
| Provinces of Turkey | 0 | - | 4.95 | 203,915 |
| Thailand Country Quiz | 0 | - | 4.53 | 53,255 |
| Provinces of China | 0 | - | 4.97 | 204,078 |
| History of China | 0 | - | 4.37 | 57,144 |
| Japanese Prefectures | 0 | - | 4.98 | 136,679 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,794 |
| Countries Closest to Taiwan | 0 | - | 4.81 | 93,268 |
| States of India Map Quiz | 0 | - | 4.83 | 26,475 |
| Countries Bordering India | 0 | - | 4.98 | 163,394 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,425 |
| Countries Closest to India | 0 | - | 4.97 | 102,716 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,197 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,704 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,258 |
| Name a Valid African Country | 0 | - | 4.98 | 153,961 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,049 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,332 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,571 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,366 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,694,257 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,687 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,653 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,462 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,008 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,626 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,955 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,965 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 260,634 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,564 |
| Byzantine History | 0 | - | 4.91 | 28,815 |
| Byzantine Emperors | 0 | - | 4.94 | 13,485 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,473 |
| Name the English Monarchs | 0 | - | 4.91 | 502,205 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,743 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,930 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,155 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,418 |
| Countries that Have Controlled Mesopotamia | 0 | - | 4.15 | 15,557 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 83,346 |
| Countries Bordering Iran | 0 | - | 4.83 | 95,229 |
| Countries that Border Iraq | 0 | - | 4.97 | 108,306 |
| Countries Closest to Turkey | 0 | - | 4.96 | 125,995 |
| Countries Bordering Turkey | 0 | - | 4.98 | 117,086 |
| Ottoman Empire Quiz | 0 | - | 4.42 | 17,121 |
| Geography of Egypt | 0 | - | 4.60 | 21,507 |
| Countries Bordering Saudi Arabia | 0 | - | 4.95 | 118,613 |
| Countries Closest to Yemen | 0 | - | 4.91 | 22,522 |
| Syria Country Quiz | 0 | - | 4.81 | 32,740 |
| Countries Closest to Cyprus | 0 | - | 4.91 | 55,497 |
| Jordan Country Quiz | 0 | - | 4.86 | 31,739 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,022 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,418 |
| Countries Closest to Indonesia | 0 | - | 4.97 | 104,501 |
| Countries Closest to Vietnam | 0 | - | 4.95 | 93,935 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,499 |
| Geography of China | 0 | - | 4.21 | 13,943 |
| China Cities Map Quiz | 0 | - | 4.94 | 105,075 |
| Provinces of China Map Quiz | 0 | - | 4.92 | 93,514 |
| Chinese Inventions | 0 | - | 4.30 | 33,794 |
| Countries that Border China | 0 | - | 4.96 | 263,031 |
| Japan Country Quiz | 0 | - | 4.93 | 142,378 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 77,394 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 60,118 |
| Countries Closest to Japan | 0 | - | 4.92 | 138,578 |
| Closest Countries to North Korea | 0 | - | 4.94 | 122,353 |
| Countries that Beat North Korea | 0 | - | 4.43 | 34,350 |
| Bhutan Country Quiz | 0 | - | 4.87 | 24,207 |
| Countries that Beat India | 0 | - | 4.42 | 62,938 |
| Hindu Countries | 0 | - | 4.86 | 50,089 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,957 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,010 |
| Countries that Beat Canada | 0 | - | 4.90 | 94,480 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,660 |
| The Trojan War | 0 | - | 4.83 | 39,692 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,877 |
| Name that Greek Letter | 0 | - | 4.93 | 323,310 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,731 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,485 |
| Roman Emperors | 0 | - | 4.95 | 119,878 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,272 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,546 |
| Prime Ministers of the UK | 0 | - | 4.95 | 438,485 |
| Countries and States in the Caucasus | 0 | - | 4.46 | 51,497 |
| The Only Remaining Asian Country . . . | 0 | - | 4.64 | 45,786 |
| Middle Eastern Geography Quiz | 0 | - | 4.57 | 43,772 |
| Qatar Country Quiz | 0 | - | 4.86 | 31,499 |
| History of Egypt | 0 | - | 4.58 | 24,019 |
| Egypt Country Quiz | 0 | - | 4.83 | 77,493 |
| Countries that Beat Saudi Arabia | 0 | - | 4.74 | 46,331 |
| Oman Country Quiz | 0 | - | 4.86 | 26,892 |
| Mekong River Countries Empty Map Quiz | 0 | - | 4.80 | 53,232 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,981 |
| Brunei Country Quiz | 0 | - | 4.87 | 21,918 |
| Countries that Beat China | 0 | - | 4.86 | 115,689 |
| Countries that Beat Japan | 0 | - | 4.41 | 67,956 |
| The Life of Gandhi | 0 | - | 4.37 | 13,052 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,964 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,407 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,143 |
| Names of Generations | 0 | - | 4.09 | 44,731 |
| American History Quotes #1 | 0 | - | 4.37 | 96,001 |
| American History Quotes #2 | 0 | - | 4.38 | 41,389 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,435 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,228 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,239 |
| History of Russia Quiz | 0 | - | 4.47 | 31,905 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,215 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,438 |
| Ancient Greek Words | 0 | - | 4.93 | 111,503 |
| History of Italy | 0 | - | 4.55 | 31,960 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,643 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,789 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,209 |
| Geography of Spain | 0 | - | 4.59 | 22,067 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,838 |
| Asian Physical Geography | 0 | - | 4.61 | 35,504 |
| East Asian Islands on the Map | 0 | - | 4.54 | 33,080 |
| 10 Westernmost Countries in Asia | 0 | - | 4.69 | 71,173 |
| Asian Island Nations | 0 | - | 4.63 | 94,142 |
| Asia's Busiest Airports | 0 | - | 4.77 | 52,727 |
| Asian Countries by Borders in 30 Seconds | 0 | - | 4.45 | 414,903 |
| Turkmenistan Country Quiz | 0 | - | 4.81 | 25,958 |
| Arab Spring Countries | 0 | - | 4.51 | 44,007 |
| Countries Surrounding Istanbul | 0 | - | 4.89 | 24,825 |
| Countries Closest to Egypt | 0 | - | 4.83 | 100,990 |
| Countries that Beat Egypt | 0 | - | 4.88 | 56,969 |
| India Cities Map Quiz | 0 | - | 4.67 | 61,076 |
| Countries of the Indian Diaspora | 0 | - | 4.48 | 59,140 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,057 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 426,248 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 381,387 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 191,632 |
| Europe Map Quiz | 0 | - | 5.00 | 4,759,836 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,840 |
| German Groups of Things | 0 | - | 4.46 | 38,468 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,795 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,085 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,177 |
| Asian Islands | 0 | - | 4.49 | 20,829 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,099 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 65,661 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,387 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,861 |
| Asian Geography by Letter - T | 0 | - | 4.51 | 57,331 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,927 |
| Asian Diaspora - Top 10 Countries | 0 | - | 4.75 | 41,270 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,065 |
| The Only Asian Country ... | 0 | - | 4.69 | 122,364 |
| Ten Highest HDI Countries in Asia | 0 | - | 4.45 | 54,801 |
| Random Asian City to Country | 0 | - | 4.56 | 44,484 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,993 |
| Asian Geography By Letter - O | 0 | - | 4.65 | 31,824 |
| Asian Countries with the Fewest Borders | 0 | - | 4.74 | 106,926 |
| 10 Plagues of Egypt | 0 | - | 4.41 | 53,802 |
