| Japanese Loanwords | 0 | - | 4.47 | 84,577 |
| English Words of Arabic Origin | 0 | - | 4.54 | 49,723 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,749 |
| German Loan Words | 0 | - | 4.27 | 135,736 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 706,759 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,235 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,293 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,043 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,449 |
| States of India | 0 | - | 4.94 | 192,724 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,104 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,417 |
| Provinces of Turkey | 0 | - | 4.95 | 203,733 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,952 |
| Provinces of China | 0 | - | 4.97 | 203,618 |
| Japanese Prefectures | 0 | - | 4.98 | 136,504 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,337 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,201 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,289 |
| Name that Greek Letter | 0 | - | 4.93 | 323,137 |
| Countries Closest to Yemen | 0 | - | 4.91 | 22,501 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,891 |
| Countries and States in the Caucasus | 0 | - | 4.46 | 51,459 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 108,727 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 274,839 |
| Middle Eastern Geography Quiz | 0 | - | 4.57 | 43,727 |
| China's Territorial Disputes | 0 | - | 4.44 | 35,614 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,092 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 95,116 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,914 |
| Ancient Greek Words | 0 | - | 4.93 | 111,387 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 35,439 |
| Asian Physical Geography | 0 | - | 4.60 | 35,483 |
| East Asian Islands on the Map | 0 | - | 4.54 | 33,056 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,532 |
| Asia's Busiest Airports | 0 | - | 4.77 | 52,683 |
| Japan Multiple Choice | 0 | - | 4.48 | 40,654 |
| Countries of the Indian Diaspora | 0 | - | 4.48 | 58,899 |
| History of India | 0 | - | 4.61 | 21,401 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,932 |
| Native American Words | 0 | - | 4.26 | 24,755 |
| Europe Map Quiz | 0 | - | 5.00 | 4,756,608 |
| Top 10 European Countries by English Proficiency | 0 | - | 4.74 | 65,644 |
| American to British Word Translation | 0 | - | 4.14 | 138,791 |
| Asian Islands | 0 | - | 4.49 | 20,821 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,081 |
| Asian Geography by Letter - H | 0 | - | 4.49 | 65,635 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,367 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,830 |
| Asian Geography by Letter - T | 0 | - | 4.51 | 57,309 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,477 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,508 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,228 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,040 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,958 |
| Asian Geography By Letter - O | 0 | - | 4.65 | 31,773 |
| A Quiz About Islam | 0 | - | 4.31 | 48,404 |
| Middle East A-Z | 0 | - | 4.47 | 45,977 |
| Countries That Don't Recognize Israel | 0 | - | 4.67 | 34,766 |
| Provinces of the Philippines | 0 | - | 4.56 | 49,569 |
| Largest Indonesian Islands | 0 | - | 4.75 | 49,975 |
| Chinese Zodiac Quiz | 0 | - | 4.80 | 139,521 |
| Dynasties of China | 0 | - | 4.64 | 27,844 |
| History of China | 0 | - | 4.37 | 57,071 |
| Overseas Chinese Population | 0 | - | 4.55 | 43,352 |
| Sushi Translation | 0 | - | 4.08 | 13,937 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 33,001 |
| Last Name Vocabulary | 0 | - | 4.17 | 56,277 |
| Mythical Creatures #2 | 0 | - | 4.05 | 111,596 |
| Christmas Vocabulary | 0 | - | 4.06 | 33,375 |
| North Korea... or South Korea? | 0 | - | 4.47 | 80,614 |
| Bhutan... or Nepal? | 0 | - | 4.59 | 17,753 |
| Countries of Africa | 0 | - | 5.00 | 2,531,021 |
| Africa Map Quiz | 0 | - | 5.00 | 2,115,142 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,647 |
| African East Coast | 0 | - | 4.96 | 95,854 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,660 |
| Oceania Map Quiz | 0 | - | 4.98 | 640,817 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,501 |
| Australian Capitals | 0 | - | 4.92 | 62,699 |
| Australia Map Quiz | 0 | - | 4.95 | 343,891 |
| United States Map Quiz | 0 | - | 4.98 | 4,154,463 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,605 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,835 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,826 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,589 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,607 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,014 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,028 |
| Official European Union Languages | 0 | - | 4.97 | 238,192 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,649 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,897 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,886 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,625 |
| The Only European Country ... | 0 | - | 4.91 | 216,058 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,817 |
| 15 Most Populous Countries that Speak a Germanic Language | 0 | - | 4.39 | 82,506 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,769 |
| British Spellings | 0 | - | 4.06 | 99,411 |
| Asian Geography By Letter - S | 0 | - | 4.17 | 56,056 |
| Asian Geography by Letter - D | 0 | - | 4.27 | 51,887 |
| Asian Geography by Letter - G | 0 | - | 4.35 | 51,172 |
| Asian Geography by Letter - I | 0 | - | 4.36 | 67,728 |
| Asian Geography by Letter - C | 0 | - | 4.32 | 64,687 |
| Asian Geography by Letter - N | 0 | - | 4.33 | 50,189 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,446,926 |
| Asia Map Quiz | 0 | - | 4.99 | 914,860 |
| South Asian Cities by Map | 0 | - | 4.33 | 23,495 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,717 |
| Word Chain - Asia | 0 | - | 4.34 | 29,307 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,696 |
| Asian Geography By Letter - J | 0 | - | 4.25 | 34,675 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,381,492 |
| Countries that Have Controlled Mesopotamia | 0 | - | 4.15 | 15,549 |
| Iran... or Iraq? | 0 | - | 4.32 | 33,552 |
| Ottoman Empire Quiz | 0 | - | 4.42 | 17,106 |
| History of Egypt | 0 | - | 4.58 | 24,011 |
| Emirates of the United Arab Emirates | 0 | - | 4.53 | 18,887 |
| Largest Philippines Islands | 0 | - | 4.63 | 24,542 |
| Chinese Inventions | 0 | - | 4.30 | 33,785 |
| Cities of the Pearl River Delta | 0 | - | 4.62 | 15,377 |
| Chinese Geography on the Map | 0 | - | 4.56 | 24,351 |
| China by Picture | 0 | - | 4.51 | 63,079 |
| Japanese Companies | 0 | - | 4.28 | 34,193 |
| Four Main Islands of Japan | 0 | - | 4.53 | 26,918 |
| Elemental Words | 0 | - | 4.96 | 52,229 |
| Foods by Alternate Definition | 0 | - | 3.88 | 53,485 |
| Movie Title Vocabulary Quiz #1 | 0 | - | 4.23 | 59,702 |
| Song Title Vocabulary | 0 | - | 4.35 | 62,363 |
| First Name Vocabulary #1 | 0 | - | 3.84 | 48,547 |
| First Name Vocabulary #2 | 0 | - | 3.97 | 36,753 |
| Country Name Etymologies #1 | 0 | - | 4.97 | 158,771 |
| Country Name Etymologies #2 | 0 | - | 4.96 | 86,482 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,686 |
| Officially Recognized Languages of India | 0 | - | 4.38 | 31,284 |
| The Life of Gandhi | 0 | - | 4.37 | 13,046 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,890 |
| Flags of Africa Quiz | 0 | - | 5.00 | 469,524 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,297 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,711 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,421 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,043 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,111 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,673 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,228 |
| The Only African Country ... | 0 | - | 4.98 | 128,970 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,070 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,738 |
| African Island Countries | 0 | - | 4.96 | 101,459 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,106 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,692 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,026 |
| Flags of Oceania | 0 | - | 5.00 | 258,300 |
| Australian States and Territories | 0 | - | 4.96 | 141,714 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 145,205 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,237 |
| Australian Slang | 0 | - | 4.24 | 28,598 |
| Australia True or False | 0 | - | 4.87 | 56,785 |
| Flags of North and South America | 0 | - | 4.99 | 372,104 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,524 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,108 |
| The Only American Country ... | 0 | - | 4.92 | 121,424 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,962 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,407 |
| South America Map Quiz | 0 | - | 5.00 | 1,547,637 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,583 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,020,903 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,740 |
| North America Map Quiz | 0 | - | 4.98 | 247,821 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,564 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,899 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,376 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,208 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,664 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,351 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,769 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,830 |
| US States Quiz | 0 | - | 5.00 | 16,837,709 |
| Canada Provinces and Territories | 0 | - | 5.00 | 341,527 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,319 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,056 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,956 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,806 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,366 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,240,553 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,326,598 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,462 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,009 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,701 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,288 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,012 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,967 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,269 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,940 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,035 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 170,799 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,536 |
| Monarchies of Europe | 0 | - | 4.90 | 97,983 |
| European Countries with One Border | 0 | - | 4.97 | 182,546 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,353 |
