| Japanese Prefectures | 0 | - | 4.98 | 137,829 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,777 |
| German Loan Words | 0 | - | 4.28 | 139,340 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 708,727 |
| English Words of Arabic Origin | 0 | - | 4.54 | 49,817 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,688 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,884 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 50,198 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,614 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,750 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,407 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,151 |
| Provinces of Turkey | 0 | - | 4.94 | 204,792 |
| Provinces of China | 0 | - | 4.97 | 205,888 |
| Japan Country Quiz | 0 | - | 4.93 | 142,810 |
| States of India | 0 | - | 4.95 | 194,309 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,491 |
| Countries Closest to Yemen | 0 | - | 4.92 | 22,642 |
| Japanese Companies | 0 | - | 4.28 | 34,270 |
| Countries that Visit Japan the Most | 0 | - | 4.93 | 77,590 |
| Most-Visited Countries by Japanese | 0 | - | 4.95 | 60,302 |
| Countries Closest to Japan | 0 | - | 4.92 | 138,861 |
| Sushi Translation | 0 | - | 4.08 | 13,954 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,964 |
| Countries and States in the Caucasus | 0 | - | 4.46 | 51,639 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 109,061 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 276,004 |
| Middle Eastern Geography Quiz | 0 | - | 4.57 | 43,977 |
| China's Territorial Disputes | 0 | - | 4.47 | 35,700 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,311 |
| Countries Bordering China Since 1914 | 0 | - | 4.92 | 95,599 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 89,540 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,806 |
| Ancient Greek Words | 0 | - | 4.93 | 111,978 |
| Asian Cities A-Z by Clue | 0 | - | 4.51 | 42,518 |
| Asian Physical Geography | 0 | - | 4.61 | 35,568 |
| East Asian Islands on the Map | 0 | - | 4.54 | 33,144 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,587 |
| Asia's Busiest Airports | 0 | - | 4.69 | 52,935 |
| Japan Multiple Choice | 0 | - | 4.48 | 40,750 |
| Native American Words | 0 | - | 4.26 | 24,790 |
| Europe Map Quiz | 0 | - | 5.00 | 4,773,135 |
| American to British Word Translation | 0 | - | 4.14 | 139,355 |
| Asian Islands | 0 | - | 4.49 | 20,869 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,286 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 65,860 |
| Asian Geography By Letter - M | 0 | - | 4.48 | 61,518 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 58,027 |
| Asian Geography by Letter - T | 0 | - | 4.51 | 57,488 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,565 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,624 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,299 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,122 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,145 |
| Asian Geography By Letter - O | 0 | - | 4.66 | 32,066 |
| A Quiz About Islam | 0 | - | 4.31 | 48,514 |
| Middle East A-Z | 0 | - | 4.47 | 46,161 |
| History of Iran | 0 | - | 4.66 | 16,386 |
| Countries That Don't Recognize Israel | 0 | - | 4.68 | 34,971 |
| Provinces of the Philippines | 0 | - | 4.56 | 50,509 |
| Largest Indonesian Islands | 0 | - | 4.75 | 50,145 |
| Chinese Zodiac Quiz | 0 | - | 4.80 | 139,807 |
| Dynasties of China | 0 | - | 4.64 | 27,981 |
| History of China | 0 | - | 4.37 | 57,357 |
| Overseas Chinese Population | 0 | - | 4.55 | 43,484 |
| Things that Have Been Banned in China | 0 | - | 4.31 | 58,296 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 33,201 |
| Countries of the Indian Diaspora | 0 | - | 4.46 | 59,551 |
| History of India | 0 | - | 4.62 | 21,464 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,673 |
| Last Name Vocabulary | 0 | - | 4.17 | 56,340 |
| Mythical Creatures #2 | 0 | - | 4.05 | 112,010 |
| Christmas Vocabulary | 0 | - | 4.06 | 33,396 |
| Oceania Map Quiz | 0 | - | 4.98 | 654,810 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,009 |
| Australian Capitals | 0 | - | 4.92 | 62,764 |
| Australia Map Quiz | 0 | - | 4.95 | 345,304 |
| United States Map Quiz | 0 | - | 4.98 | 4,164,291 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,678 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,902 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,755 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,699 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,370 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,192 |
| Official European Union Languages | 0 | - | 4.97 | 239,003 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,189 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,132 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,798 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,345 |
| The Only European Country ... | 0 | - | 4.91 | 217,571 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,696 |
| 15 Most Populous Countries that Speak a Germanic Language | 0 | - | 4.39 | 82,651 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,927 |
| British Spellings | 0 | - | 4.06 | 99,517 |
| Asian Geography By Letter - S | 0 | - | 4.17 | 56,152 |
| Asian Geography by Letter - D | 0 | - | 4.27 | 52,029 |
| Asian Geography by Letter - G | 0 | - | 4.36 | 51,299 |
| Asian Geography by Letter - I | 0 | - | 4.37 | 67,895 |
| Asian Geography by Letter - C | 0 | - | 4.32 | 64,850 |
| Asian Geography by Letter - N | 0 | - | 4.34 | 50,321 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,914 |
| Asia Map Quiz | 0 | - | 4.99 | 920,222 |
| South Asian Cities by Map | 0 | - | 4.33 | 23,528 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,849 |
| Word Chain - Asia | 0 | - | 4.34 | 29,356 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,377 |
| Asian Geography By Letter - J | 0 | - | 4.27 | 34,816 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,385,101 |
| Countries that Have Controlled Mesopotamia | 0 | - | 4.15 | 15,586 |
| Iran... or Iraq? | 0 | - | 4.32 | 33,612 |
| History of Egypt | 0 | - | 4.58 | 24,064 |
| Emirates of the United Arab Emirates | 0 | - | 4.53 | 18,950 |
| Largest Philippines Islands | 0 | - | 4.63 | 24,602 |
| Chinese Inventions | 0 | - | 4.30 | 33,826 |
| Cities of the Pearl River Delta | 0 | - | 4.62 | 15,429 |
| Chinese Geography on the Map | 0 | - | 4.56 | 24,427 |
| China by Picture | 0 | - | 4.51 | 63,425 |
| Four Main Islands of Japan | 0 | - | 4.53 | 26,957 |
| Countries that Beat Japan | 0 | - | 4.41 | 68,144 |
| North Korea... or South Korea? | 0 | - | 4.47 | 80,825 |
| Bhutan... or Nepal? | 0 | - | 4.59 | 17,828 |
| Countries of Africa | 0 | - | 5.00 | 2,546,543 |
| Africa Map Quiz | 0 | - | 5.00 | 2,122,508 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,153 |
| African East Coast | 0 | - | 4.96 | 96,340 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,201 |
| Elemental Words | 0 | - | 4.96 | 52,402 |
| Foods by Alternate Definition | 0 | - | 3.88 | 53,515 |
| Movie Title Vocabulary Quiz #1 | 0 | - | 4.23 | 59,796 |
| Song Title Vocabulary | 0 | - | 4.35 | 62,482 |
| First Name Vocabulary #1 | 0 | - | 3.85 | 48,641 |
| First Name Vocabulary #2 | 0 | - | 3.94 | 36,853 |
| Country Name Etymologies #1 | 0 | - | 4.97 | 159,022 |
| Country Name Etymologies #2 | 0 | - | 4.96 | 86,721 |
| Flags of Oceania | 0 | - | 5.00 | 260,765 |
| Australian States and Territories | 0 | - | 4.96 | 142,306 |
| Australia Cities Map Quiz | 0 | - | 4.82 | 145,789 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,377 |
| Australian Slang | 0 | - | 4.24 | 28,658 |
| Australia True or False | 0 | - | 4.87 | 56,966 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,735 |
| Flags of North and South America | 0 | - | 4.99 | 374,592 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,738 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,438 |
| The Only American Country ... | 0 | - | 4.92 | 121,853 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,320 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,169 |
| South America Map Quiz | 0 | - | 5.00 | 1,552,158 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,650 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 903,083 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,401 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,265 |
| North America Map Quiz | 0 | - | 4.98 | 249,625 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,897 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,457 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,637 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,792 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,820 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,645 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,450 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,059 |
| US States Quiz | 0 | - | 5.00 | 16,926,471 |
| U.S. States with Spanish Names | 0 | - | 4.50 | 88,017 |
| Canada Provinces and Territories | 0 | - | 5.00 | 343,947 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 642,017 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,329 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,247 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,981 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,437 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,249,571 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,003 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,331 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,988 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,500 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,086 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,534 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,917 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,406 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,786 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,652 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,437 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,568 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,533 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,041 |
| Monarchies of Europe | 0 | - | 4.90 | 98,401 |
| European Countries with One Border | 0 | - | 4.97 | 183,192 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,974 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,249 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,720 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,810 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,389 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,643 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,462 |
| Slavic Countries | 0 | - | 4.96 | 111,952 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,177 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,148 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,918 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,274 |
| States of Germany | 0 | - | 4.95 | 153,387 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,502 |
