| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,997 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,350 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,874 |
| Asia Geography Quiz #1 | 0 | - | 4.78 | 53,325 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,319 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,146 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,704 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,552 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,042 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,511 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,440,069 |
| Asia Map Quiz | 0 | - | 4.99 | 906,907 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,176 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,450 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,816 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,648 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,423 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,803 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,987 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,610 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,941 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,980 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,340 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,752 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,387 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,225 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,695 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,473 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,672 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,750 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,147 |
| Countries of the Middle East | 0 | - | 4.96 | 198,880 |
| States of India | 0 | - | 4.94 | 189,996 |
| History of India | 0 | - | 4.61 | 21,281 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,329 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,929 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,099 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,517 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,992 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,020 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,392 |
| Monarchies of Asia | 0 | - | 4.97 | 70,591 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,430 |
| History of Iran | 0 | - | 4.65 | 16,272 |
| Provinces of Turkey | 0 | - | 4.95 | 200,958 |
| Thailand Country Quiz | 0 | - | 4.53 | 52,845 |
| Provinces of China | 0 | - | 4.97 | 200,079 |
| History of China | 0 | - | 4.37 | 56,686 |
| Japanese Prefectures | 0 | - | 4.98 | 134,525 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,205 |
| Countries Closest to Taiwan | 0 | - | 4.81 | 92,777 |
| States of India Map Quiz | 0 | - | 4.82 | 26,027 |
| Countries Bordering India | 0 | - | 4.98 | 162,591 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.68 | 55,167 |
| Countries Closest to India | 0 | - | 4.97 | 102,201 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 57,770 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,326 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,086 |
| Name a Valid African Country | 0 | - | 4.98 | 152,924 |
| Oceania Geography Quiz | 0 | - | 4.55 | 21,977 |
| South American Geography Quiz #2 | 0 | - | 4.62 | 39,190 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,469 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,136 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,653,582 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,231 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,392 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,138 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,494 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,182 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,145 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,959 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,730 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,229 |
| Byzantine History | 0 | - | 4.91 | 28,615 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,250 |
| Name the English Monarchs | 0 | - | 4.92 | 497,831 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,505 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,485 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,236 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,146 |
| Countries that Have Controlled Mesopotamia | 0 | - | 4.15 | 15,491 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 82,975 |
| Countries Bordering Iran | 0 | - | 4.83 | 94,775 |
| Countries that Border Iraq | 0 | - | 4.97 | 107,843 |
| Countries Closest to Turkey | 0 | - | 4.96 | 125,331 |
| Countries Bordering Turkey | 0 | - | 4.98 | 116,472 |
| Ottoman Empire Quiz | 0 | - | 4.42 | 17,024 |
| Geography of Egypt | 0 | - | 4.60 | 21,411 |
| Countries Bordering Saudi Arabia | 0 | - | 4.95 | 118,221 |
| Countries Closest to Yemen | 0 | - | 4.91 | 22,306 |
| Syria Country Quiz | 0 | - | 4.81 | 32,301 |
| Countries Closest to Cyprus | 0 | - | 4.91 | 54,880 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,439 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 100,787 |
| Countries Closest to Indonesia | 0 | - | 4.96 | 103,945 |
| Countries Closest to Vietnam | 0 | - | 4.95 | 93,494 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,070 |
| Geography of China | 0 | - | 4.21 | 13,873 |
| China Cities Map Quiz | 0 | - | 4.93 | 104,030 |
| Provinces of China Map Quiz | 0 | - | 4.92 | 92,775 |
| Chinese Inventions | 0 | - | 4.30 | 33,718 |
| Countries that Border China | 0 | - | 4.96 | 261,800 |
| Japan Country Quiz | 0 | - | 4.92 | 141,227 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 76,933 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 59,699 |
| Countries Closest to Japan | 0 | - | 4.92 | 137,900 |
| Closest Countries to North Korea | 0 | - | 4.94 | 121,791 |
| Countries that Beat North Korea | 0 | - | 4.43 | 34,140 |
| Kazakhstan Country Quiz | 0 | - | 4.85 | 30,837 |
| Bhutan Country Quiz | 0 | - | 4.87 | 24,009 |
| Countries that Beat India | 0 | - | 4.41 | 62,584 |
| Hindu Countries | 0 | - | 4.85 | 49,564 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,555 |
| U.S. History for Dummies | 0 | - | 4.47 | 82,474 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,843 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,881 |
| The Trojan War | 0 | - | 4.83 | 39,425 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,807 |
| Name that Greek Letter | 0 | - | 4.94 | 321,633 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,519 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,039 |
| Roman Emperors | 0 | - | 4.95 | 118,459 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,667 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,100 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,583 |
| Countries and States in the Caucasus | 0 | - | 4.46 | 51,150 |
| The Only Remaining Asian Country . . . | 0 | - | 4.69 | 45,457 |
| Middle Eastern Geography Quiz | 0 | - | 4.57 | 43,257 |
| Qatar Country Quiz | 0 | - | 4.85 | 31,288 |
| History of Egypt | 0 | - | 4.58 | 23,932 |
| Egypt Country Quiz | 0 | - | 4.82 | 77,027 |
| Countries that Beat Saudi Arabia | 0 | - | 4.74 | 46,095 |
| Oman Country Quiz | 0 | - | 4.86 | 26,672 |
| Jordan Country Quiz | 0 | - | 4.86 | 31,408 |
| Mekong River Countries Empty Map Quiz | 0 | - | 4.80 | 52,979 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,795 |
| Brunei Country Quiz | 0 | - | 4.87 | 21,759 |
| Countries that Beat China | 0 | - | 4.86 | 114,698 |
| Countries that Beat Japan | 0 | - | 4.41 | 67,542 |
| The Life of Gandhi | 0 | - | 4.37 | 13,018 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,324 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,938 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,860 |
| American History Quotes #1 | 0 | - | 4.37 | 95,684 |
| American History Quotes #2 | 0 | - | 4.38 | 41,223 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,237 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,075 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,299 |
| History of Russia Quiz | 0 | - | 4.49 | 31,789 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,093 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,019 |
| Ancient Greek Words | 0 | - | 4.92 | 110,685 |
| History of Italy | 0 | - | 4.55 | 31,813 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,479 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,340 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,979 |
| Geography of Spain | 0 | - | 4.59 | 21,960 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,383 |
| Asian Physical Geography | 0 | - | 4.61 | 35,370 |
| East Asian Islands on the Map | 0 | - | 4.54 | 32,924 |
| 10 Westernmost Countries in Asia | 0 | - | 4.69 | 70,823 |
| Asian Island Nations | 0 | - | 4.63 | 93,746 |
| Asia's Busiest Airports | 0 | - | 4.77 | 52,276 |
| Asian Countries by Borders in 30 Seconds | 0 | - | 4.45 | 412,761 |
| Turkmenistan Country Quiz | 0 | - | 4.81 | 25,677 |
| Arab Spring Countries | 0 | - | 4.51 | 43,818 |
| Countries Surrounding Istanbul | 0 | - | 4.89 | 24,696 |
| Countries Closest to Egypt | 0 | - | 4.83 | 100,541 |
| Countries that Beat Egypt | 0 | - | 4.88 | 56,589 |
| India Cities Map Quiz | 0 | - | 4.63 | 60,664 |
| Countries of the Indian Diaspora | 0 | - | 4.46 | 53,927 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,505 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 423,656 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,520 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,815 |
| Europe Map Quiz | 0 | - | 5.00 | 4,730,827 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,411 |
| German Groups of Things | 0 | - | 4.46 | 38,305 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,481 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,614 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,940 |
| Asian Islands | 0 | - | 4.49 | 20,764 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 70,825 |
| Asian Geography by Letter - H | 0 | - | 4.49 | 65,391 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,158 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,559 |
| Asian Geography by Letter - T | 0 | - | 4.50 | 57,068 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,088 |
| Asian Diaspora - Top 10 Countries | 0 | - | 4.75 | 41,098 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 35,895 |
| The Only Asian Country ... | 0 | - | 4.74 | 121,864 |
| Ten Highest HDI Countries in Asia | 0 | - | 4.45 | 54,643 |
| Random Asian City to Country | 0 | - | 4.56 | 44,390 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,707 |
| Asian Countries with the Fewest Borders | 0 | - | 4.74 | 106,464 |
| 10 Plagues of Egypt | 0 | - | 4.39 | 51,673 |
| Provinces of the Philippines | 0 | - | 4.56 | 48,284 |
| The Vietnam War | 0 | - | 4.43 | 35,292 |
| Overseas Chinese Population | 0 | - | 4.55 | 43,169 |
| Inventions by Country #1 | 0 | - | 4.46 | 54,883 |
