| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,166 |
| South America Map Quiz | 0 | - | 5.00 | 1,552,257 |
| Peru True or False? | 0 | - | 4.58 | 15,276 |
| New York True or False? | 0 | - | 4.53 | 33,869 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,783 |
| Word Chain - South America | 0 | - | 4.51 | 23,945 |
| United States Map Quiz | 0 | - | 4.98 | 4,164,450 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,780 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,576 |
| Canada Provinces and Territories | 0 | - | 5.00 | 344,023 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 642,064 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,743 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,447 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,191 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,654 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 903,117 |
| North America Map Quiz | 0 | - | 4.98 | 249,681 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,825 |
| Florida True or False? | 0 | - | 4.48 | 28,720 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,756 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,343 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,785 |
| Famous People from South America | 0 | - | 4.15 | 22,029 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,284 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,909 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,467 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,643 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,816 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,654 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,472 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,065 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,605 |
| States of Mexico | 0 | - | 4.96 | 176,946 |
| History of Mexico | 0 | - | 4.58 | 15,339 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,255 |
| States of Brazil | 0 | - | 4.97 | 88,760 |
| Central American Countries | 0 | - | 4.98 | 156,873 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,008 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 149,223 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,733 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,331 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,976 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,444 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,694 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,469 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,761 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,308 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,739 |
| France True or False? | 0 | - | 4.44 | 39,995 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 221,061 |
| Most Common High School Mascots | 0 | - | 4.47 | 32,202 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,752 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,840 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,606 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,851 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,721 |
| Famous Caribbean People | 0 | - | 4.37 | 12,637 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,085 |
| Territories of the United States | 0 | - | 4.80 | 52,484 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,755 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,747 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,309 |
| Name a Valid Answer - United States #1 | 0 | - | 4.63 | 94,167 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,400 |
| California Multiple Choice | 0 | - | 4.40 | 28,131 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,189 |
| New York City Geography | 0 | - | 4.42 | 33,135 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,733 |
| Europe Map Quiz | 0 | - | 5.00 | 4,773,636 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,873 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,825 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,698 |
| Oceania Map Quiz | 0 | - | 4.98 | 655,206 |
| Australian Capitals | 0 | - | 4.92 | 62,771 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,286 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,804 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,696 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,532 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,378 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,740 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,680 |
| 75 Americans Named John | 0 | - | 4.41 | 23,931 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,085 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,797 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 25,095 |
| U.S. History Multiple Choice #1 | 0 | - | 4.31 | 22,264 |
| U.S. History Multiple Choice #4 | 0 | - | 4.24 | 25,626 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,765 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,115 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,761 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,313 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,434 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,759 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,100 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,054 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,487 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,786 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,101 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,984 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,557 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,616 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,377 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,572 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,378 |
| Official European Union Languages | 0 | - | 4.97 | 239,035 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,204 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,407 |
| Which European Country - Multiple Choice | 0 | - | 4.51 | 84,480 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,032 |
| Austria... or Australia? | 0 | - | 4.68 | 104,542 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,443 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,982 |
| Asia Map Quiz | 0 | - | 4.99 | 920,362 |
| Which Asian Country? | 0 | - | 4.64 | 57,645 |
| China Multiple Choice | 0 | - | 4.50 | 37,335 |
| Africa Map Quiz | 0 | - | 5.00 | 2,122,671 |
| Which African Country? | 0 | - | 4.58 | 36,405 |
| South Africa Multiple Choice | 0 | - | 4.55 | 27,506 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,019 |
| Australian States and Territories | 0 | - | 4.96 | 142,336 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,379 |
| Australia Map Quiz | 0 | - | 4.95 | 345,352 |
| Australia True or False | 0 | - | 4.87 | 56,982 |
| Flags of North and South America | 0 | - | 4.99 | 374,689 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,286 |
| South American Geography Quiz #2 | 0 | - | 4.37 | 41,779 |
| South American Physical Geography | 0 | - | 4.58 | 18,375 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,142 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,188 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,742 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,628 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,457 |
| US States with the Most Executions | 0 | - | 4.51 | 26,410 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,108 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,115 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,214 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,191 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,245 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,950 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,760 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,990 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,085 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 68,645 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,440 |
| Sahel Countries on a Map | 0 | - | 4.99 | 21,366 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,750 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,249,885 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,235 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,544 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,137 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,838 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,017 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,517 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,585 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,427 |
| The Only European Country ... | 0 | - | 4.91 | 217,622 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,681 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,596 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,658 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,731 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,751 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,660 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,479 |
| Slavic Countries | 0 | - | 4.96 | 111,965 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,510 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,239 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,735 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,809 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,933 |
| Counties of England | 0 | - | 4.97 | 799,561 |
| UK General Knowledge Multiple Choice #3 | 0 | - | 4.53 | 18,127 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,224 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,013 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,600 |
| Flags of Asia Quiz | 0 | - | 4.99 | 616,473 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,461 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,095 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,414 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,287 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,318 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,862 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,699 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,407 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,913 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 50,225 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,385,172 |
| Countries of the Middle East | 0 | - | 4.96 | 201,815 |
| Iran... or Iraq? | 0 | - | 4.32 | 33,615 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,623 |
| Countries of Africa | 0 | - | 5.00 | 2,546,937 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,198 |
| Flags of Africa Quiz | 0 | - | 5.00 | 473,762 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,169 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,462 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,845 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,550 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,484 |
| African East Coast | 0 | - | 4.96 | 96,362 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,956 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,212 |
