| English Words of Arabic Origin | 0 | - | 4.54 | 49,942 |
| Japanese Loanwords | 0 | - | 4.47 | 84,958 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 281,164 |
| German Loan Words | 0 | - | 4.27 | 141,314 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 711,021 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,501 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 72,300 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 232,023 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.92 | 50,872 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,839 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,866 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 67,192 |
| Provinces of Turkey | 0 | - | 4.95 | 206,629 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,979 |
| Provinces of China | 0 | - | 4.97 | 209,251 |
| Japanese Prefectures | 0 | - | 4.98 | 139,612 |
| States of India | 0 | - | 4.94 | 196,774 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 103,515 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 99,347 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,479 |
| Name that Greek Letter | 0 | - | 4.93 | 325,446 |
| Countries Closest to Yemen | 0 | - | 4.92 | 22,851 |
| American Legal Vocabulary | 0 | - | 4.40 | 34,058 |
| Countries and States in the Caucasus | 0 | - | 4.46 | 51,896 |
| Word Scramble - Asian Countries | 0 | - | 4.48 | 109,433 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 277,070 |
| Middle Eastern Geography Quiz | 0 | - | 4.57 | 44,301 |
| China's Territorial Disputes | 0 | - | 4.48 | 35,863 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 533,311 |
| Ancient Greek Words | 0 | - | 4.93 | 112,752 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 43,121 |
| Asian Physical Geography | 0 | - | 4.61 | 35,650 |
| East Asian Islands on the Map | 0 | - | 4.55 | 33,246 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,713 |
| Asia's Busiest Airports | 0 | - | 4.70 | 53,240 |
| 10 Plagues of Egypt | 0 | - | 4.41 | 53,944 |
| Japan Multiple Choice | 0 | - | 4.48 | 40,877 |
| Native American Words | 0 | - | 4.26 | 24,840 |
| Europe Map Quiz | 0 | - | 5.00 | 4,795,870 |
| Top 10 European Countries by English Proficiency | 0 | - | 4.74 | 66,064 |
| American to British Word Translation | 0 | - | 4.14 | 139,893 |
| Asian Islands | 0 | - | 4.49 | 20,926 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,572 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 66,185 |
| Asian Geography By Letter - M | 0 | - | 4.48 | 61,750 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 58,317 |
| Asian Geography by Letter - T | 0 | - | 4.52 | 57,755 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,702 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,788 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,393 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,248 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,425 |
| Asian Geography By Letter - O | 0 | - | 4.66 | 32,439 |
| A Quiz About Islam | 0 | - | 4.32 | 48,675 |
| Middle East A-Z | 0 | - | 4.47 | 46,286 |
| Countries That Don't Recognize Israel | 0 | - | 4.68 | 35,260 |
| Provinces of the Philippines | 0 | - | 4.52 | 51,295 |
| Largest Indonesian Islands | 0 | - | 4.77 | 50,397 |
| Chinese Zodiac Quiz | 0 | - | 4.80 | 140,219 |
| Dynasties of China | 0 | - | 4.64 | 28,116 |
| History of China | 0 | - | 4.35 | 57,716 |
| Overseas Chinese Population | 0 | - | 4.55 | 43,645 |
| Things that Have Been Banned in China | 0 | - | 4.31 | 58,481 |
| Sushi Translation | 0 | - | 4.08 | 14,002 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 33,468 |
| Countries of the Indian Diaspora | 0 | - | 4.46 | 60,174 |
| Officially Recognized Languages of India | 0 | - | 4.40 | 31,662 |
| History of India | 0 | - | 4.62 | 21,535 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,779 |
| Last Name Vocabulary | 0 | - | 4.17 | 56,547 |
| Mythical Creatures #2 | 0 | - | 4.06 | 112,472 |
| Christmas Vocabulary | 0 | - | 4.07 | 33,422 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,935 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,680 |
| Australian Capitals | 0 | - | 4.92 | 62,887 |
| Australia Map Quiz | 0 | - | 4.95 | 346,660 |
| United States Map Quiz | 0 | - | 4.98 | 4,174,589 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,750 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.43 | 60,185 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,545 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 93,015 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,420 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,899 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,754 |
| Official European Union Languages | 0 | - | 4.97 | 240,490 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,902 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,417 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,643 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,637 |
| The Only European Country ... | 0 | - | 4.91 | 219,836 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,960 |
| 15 Most Populous Countries that Speak a Germanic Language | 0 | - | 4.40 | 82,839 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,590 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,125 |
| British Spellings | 0 | - | 4.06 | 99,647 |
| Asian Geography By Letter - S | 0 | - | 4.17 | 56,299 |
| Asian Geography by Letter - D | 0 | - | 4.27 | 52,259 |
| Asian Geography by Letter - G | 0 | - | 4.36 | 51,482 |
| Asian Geography by Letter - I | 0 | - | 4.37 | 68,142 |
| Asian Geography by Letter - C | 0 | - | 4.32 | 65,100 |
| Asian Geography by Letter - N | 0 | - | 4.34 | 50,525 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,837 |
| Asia Map Quiz | 0 | - | 4.99 | 927,377 |
| South Asian Cities by Map | 0 | - | 4.33 | 23,581 |
| Asian Last Names in the United States | 0 | - | 4.43 | 47,048 |
| Word Chain - Asia | 0 | - | 4.34 | 29,408 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 100,281 |
| Asian Geography By Letter - J | 0 | - | 4.27 | 35,015 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,388,384 |
| Countries that Have Controlled Mesopotamia | 0 | - | 4.15 | 15,628 |
| Iran... or Iraq? | 0 | - | 4.31 | 33,701 |
| History of Egypt | 0 | - | 4.58 | 24,120 |
| Emirates of the United Arab Emirates | 0 | - | 4.53 | 19,113 |
| Largest Philippines Islands | 0 | - | 4.63 | 24,755 |
| Chinese Inventions | 0 | - | 4.30 | 33,880 |
| Cities of the Pearl River Delta | 0 | - | 4.62 | 15,470 |
| Chinese Geography on the Map | 0 | - | 4.56 | 24,536 |
| Japanese Companies | 0 | - | 4.29 | 34,406 |
| Four Main Islands of Japan | 0 | - | 4.53 | 26,997 |
| North Korea... or South Korea? | 0 | - | 4.47 | 81,073 |
| Bhutan... or Nepal? | 0 | - | 4.59 | 17,923 |
| Countries of Africa | 0 | - | 5.00 | 2,567,050 |
| Africa Map Quiz | 0 | - | 5.00 | 2,131,674 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,336 |
| African East Coast | 0 | - | 4.96 | 96,989 |
| Western Africa Map Quiz | 0 | - | 4.98 | 74,880 |
| Elemental Words | 0 | - | 4.97 | 52,628 |
| Foods by Alternate Definition | 0 | - | 3.88 | 53,584 |
| Movie Title Vocabulary Quiz #1 | 0 | - | 4.23 | 59,929 |
| Song Title Vocabulary | 0 | - | 4.35 | 62,645 |
| First Name Vocabulary #1 | 0 | - | 3.88 | 56,037 |
| First Name Vocabulary #2 | 0 | - | 3.95 | 37,836 |
| Country Name Etymologies #1 | 0 | - | 4.97 | 159,653 |
| Country Name Etymologies #2 | 0 | - | 4.96 | 87,139 |
| Flags of Oceania | 0 | - | 5.00 | 263,776 |
| Australian States and Territories | 0 | - | 4.96 | 143,149 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 146,757 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,568 |
| Australian Slang | 0 | - | 4.24 | 28,773 |
| Australia True or False | 0 | - | 4.87 | 57,258 |
| Flags of North and South America | 0 | - | 4.99 | 378,607 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,114 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 145,043 |
| The Only American Country ... | 0 | - | 4.92 | 122,419 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,833 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,954 |
| South America Map Quiz | 0 | - | 5.00 | 1,559,399 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,803 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,673 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,034,215 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 59,060 |
| North America Map Quiz | 0 | - | 4.98 | 253,124 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 95,369 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 65,421 |
| U.S. State Border Crossings | 0 | - | 4.97 | 97,003 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 241,052 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 114,054 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 76,118 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 75,336 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,358 |
| US States Quiz | 0 | - | 5.00 | 17,035,296 |
| U.S. States with Spanish Names | 0 | - | 4.49 | 88,379 |
| Canada Provinces and Territories | 0 | - | 5.00 | 347,479 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 645,736 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,704 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,662 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,275 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,262,858 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,312 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,887 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,868 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,611 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 97,045 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,820 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,967 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,994 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,185 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,948 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,381 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,849 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,739 |
| Monarchies of Europe | 0 | - | 4.90 | 99,109 |
| European Countries with One Border | 0 | - | 4.97 | 184,135 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,847 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,874 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,669 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,464 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,973 |
| Slavic Countries | 0 | - | 4.96 | 112,583 |
| Federal Subjects of Russia | 0 | - | 4.95 | 150,082 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,638 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,896 |
| States of Germany Map Quiz | 0 | - | 4.92 | 134,078 |
| States of Germany | 0 | - | 4.95 | 155,081 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,778 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,875 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,541 |
| Regions of Italy | 0 | - | 4.92 | 77,345 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,982 |
| Regions of Spain Quiz | 0 | - | 4.91 | 115,700 |
