| Australian Capitals | 0 | - | 4.92 | 62,699 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 706,766 |
| English Words of Arabic Origin | 0 | - | 4.54 | 49,724 |
| Australia True or False | 0 | - | 4.87 | 56,785 |
| Non-Stop Flights to New Zealand | 0 | - | 4.46 | 47,969 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,471 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,265 |
| Australia Country Quiz | 0 | - | 4.43 | 69,534 |
| Regions of New Zealand | 0 | - | 4.85 | 28,463 |
| Australian Slang | 0 | - | 4.24 | 28,599 |
| Native American Words | 0 | - | 4.26 | 24,755 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,919 |
| Japanese Loanwords | 0 | - | 4.47 | 84,577 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,933 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,891 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,752 |
| New Zealand Country Quiz | 0 | - | 4.70 | 75,885 |
| Europe Map Quiz | 0 | - | 5.00 | 4,756,662 |
| German Loan Words | 0 | - | 4.27 | 135,736 |
| Mythical Creatures #2 | 0 | - | 4.05 | 111,597 |
| Christmas Vocabulary | 0 | - | 4.06 | 33,375 |
| Africa Map Quiz | 0 | - | 5.00 | 2,115,157 |
| Oceania Map Quiz | 0 | - | 4.98 | 640,833 |
| Word Chain - Australia | 0 | - | 4.38 | 38,122 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,016 |
| Official European Union Languages | 0 | - | 4.97 | 238,193 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,651 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,629 |
| American to British Word Translation | 0 | - | 4.14 | 138,793 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,446,947 |
| Asia Map Quiz | 0 | - | 4.99 | 914,875 |
| Elemental Words | 0 | - | 4.96 | 52,229 |
| Last Name Vocabulary | 0 | - | 4.17 | 56,277 |
| Countries of Africa | 0 | - | 5.00 | 2,531,056 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,649 |
| African East Coast | 0 | - | 4.96 | 95,858 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,660 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,038 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,504 |
| Australia Map Quiz | 0 | - | 4.95 | 343,892 |
| United States Map Quiz | 0 | - | 4.98 | 4,154,488 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,606 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,830 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,589 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,611 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,036 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,898 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,891 |
| The Only European Country ... | 0 | - | 4.91 | 216,064 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,817 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,769 |
| British Spellings | 0 | - | 4.06 | 99,411 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,696 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,381,495 |
| 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 | 62,364 |
| First Name Vocabulary #1 | 0 | - | 3.84 | 48,548 |
| First Name Vocabulary #2 | 0 | - | 3.97 | 36,753 |
| Country Name Etymologies #1 | 0 | - | 4.97 | 158,773 |
| Country Name Etymologies #2 | 0 | - | 4.96 | 86,484 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,892 |
| Flags of Africa Quiz | 0 | - | 5.00 | 469,533 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,713 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,425 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,044 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,112 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,232 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,741 |
| African Island Countries | 0 | - | 4.96 | 101,462 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,111 |
| Oceania Physical Geography | 0 | - | 4.30 | 12,674 |
| Australian States and Territories | 0 | - | 4.96 | 141,715 |
| Famous Australians by Description | 0 | - | 4.23 | 27,884 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,237 |
| Flags of North and South America | 0 | - | 4.99 | 372,109 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,526 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,108 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,408 |
| South America Map Quiz | 0 | - | 5.00 | 1,547,653 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,020,931 |
| North America Map Quiz | 0 | - | 4.98 | 247,827 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,665 |
| Canada Provinces and Territories | 0 | - | 5.00 | 341,529 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,330 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,056 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,808 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,366 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,240,576 |
| Celtic Nations | 0 | - | 4.69 | 46,910 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,326,614 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,464 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,010 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,237 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,013 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,269 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,038 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 170,804 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,840 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,045 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,779 |
| Slavic Countries | 0 | - | 4.96 | 111,514 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,297 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,894 |
| British to American Word Translation | 0 | - | 3.74 | 255,009 |
| British Foods by Description | 0 | - | 3.94 | 48,316 |
| British and American Word Differences | 0 | - | 2.63 | 46,858 |
| Counties of England | 0 | - | 4.97 | 795,108 |
| Flags of Asia Quiz | 0 | - | 4.99 | 611,675 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,108 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,564 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,995 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,840 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,687 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,310 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,293 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,048 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 49,776 |
| Countries of the Middle East | 0 | - | 4.96 | 200,814 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,451 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,730 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,642 |
| States of India | 0 | - | 4.94 | 192,725 |
| States of India Map Quiz | 0 | - | 4.83 | 26,420 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,140 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,665 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,545 |
| African Great Lakes | 0 | - | 4.82 | 66,067 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,297 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,673 |
| The Only African Country ... | 0 | - | 4.98 | 128,970 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,070 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,481 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,409 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,694 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 321,662 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,028 |
| Name a Valid African Country | 0 | - | 4.98 | 153,827 |
| Kenya Country Quiz | 0 | - | 4.86 | 34,734 |
| Tanzania Country Quiz | 0 | - | 4.90 | 33,021 |
| Morocco Country Quiz | 0 | - | 4.81 | 46,406 |
| D.R. Congo Country Quiz | 0 | - | 4.87 | 39,295 |
| Flags of Oceania | 0 | - | 5.00 | 258,303 |
| Palau Country Quiz | 0 | - | 4.90 | 22,976 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 145,206 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,519 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 68,969 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,799 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,422 |
| Tonga Country Quiz | 0 | - | 4.83 | 20,497 |
| The Only American Country ... | 0 | - | 4.92 | 121,426 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,963 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,986 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,359 |
| States of Mexico | 0 | - | 4.95 | 175,603 |
| Mexico States Map Quiz | 0 | - | 4.85 | 104,530 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,792 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,691 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,897 |
| States of Brazil | 0 | - | 4.97 | 87,699 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,525 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,584 |
| Central American Countries | 0 | - | 4.98 | 155,922 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 147,980 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,741 |
| 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 | 63,903 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,376 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,821 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,211 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,358 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,353 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,222 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,330 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,813 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,769 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,105 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,831 |
| US States Quiz | 0 | - | 5.00 | 16,838,021 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,651 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,315 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,957 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.87 | 88,912 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,964 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,825 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,702 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,288 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,971 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,942 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,415 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,066 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,536 |
| Monarchies of Europe | 0 | - | 4.90 | 97,985 |
| European Countries with One Border | 0 | - | 4.97 | 182,546 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,354 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,710 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,397 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,926 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 260,146 |
| Russia Country Quiz | 0 | - | 4.85 | 114,305 |
