| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,330 |
| South America Map Quiz | 0 | - | 5.00 | 1,554,255 |
| Word Chain - South America | 0 | - | 4.51 | 23,975 |
| United States Map Quiz | 0 | - | 4.98 | 4,168,135 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,874 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,656 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,418 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,715 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,029,121 |
| North America Map Quiz | 0 | - | 4.98 | 250,886 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,928 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,272 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 643,279 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,474 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,788 |
| Famous People from South America | 0 | - | 4.15 | 22,059 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 904,256 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,648 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 95,033 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,725 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,782 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,623 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,818 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 74,823 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,179 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,701 |
| States of Mexico | 0 | - | 4.96 | 177,704 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,574 |
| States of Brazil | 0 | - | 4.97 | 89,282 |
| Central American Countries | 0 | - | 4.98 | 157,137 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,161 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 149,911 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,351 |
| History of Mexico | 0 | - | 4.52 | 15,357 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,801 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,816 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,959 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,520 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,091 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,577 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,768 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,569 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,906 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 221,871 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,655 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,969 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,951 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,335 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,063 |
| Australian Capitals | 0 | - | 4.92 | 62,806 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,751 |
| Famous Caribbean People | 0 | - | 4.37 | 12,649 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,123 |
| Territories of the United States | 0 | - | 4.80 | 52,565 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,828 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,964 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,421 |
| Name a Valid Answer - United States #1 | 0 | - | 4.62 | 94,293 |
| New York City Geography | 0 | - | 4.43 | 33,170 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,817 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,590 |
| Official European Union Languages | 0 | - | 4.97 | 239,471 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,478 |
| Europe Map Quiz | 0 | - | 5.00 | 4,781,301 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,059 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,682 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,274 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,451,177 |
| Asia Map Quiz | 0 | - | 4.99 | 923,243 |
| Africa Map Quiz | 0 | - | 5.00 | 2,126,272 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,297 |
| Australia Map Quiz | 0 | - | 4.95 | 345,820 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,304 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,360 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,836 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 43,490 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,828 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,589 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,416 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,759 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,705 |
| 75 Americans Named John | 0 | - | 4.41 | 23,959 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,141 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,868 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,185 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,801 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,397 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,477 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,819 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,254 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,183 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,539 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,939 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,200 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 47,045 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,405 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,495 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,847 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,328 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,778 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,233 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,776 |
| The Only European Country ... | 0 | - | 4.91 | 218,430 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,192 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,005 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,702 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,386,330 |
| Countries of Africa | 0 | - | 5.00 | 2,553,569 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,645 |
| African East Coast | 0 | - | 4.96 | 96,584 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,431 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 68,856 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,475 |
| Australian States and Territories | 0 | - | 4.96 | 142,647 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,450 |
| Australia True or False | 0 | - | 4.87 | 57,076 |
| Flags of North and South America | 0 | - | 4.99 | 375,970 |
| South American Physical Geography | 0 | - | 4.58 | 18,388 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,761 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,177 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,237 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,243 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,272 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,096 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,254,183 |
| Celtic Nations | 0 | - | 4.61 | 47,068 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,911 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,309 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,857 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,288 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,624 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,897 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,235 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,060 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,108 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,962 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,651 |
| Slavic Countries | 0 | - | 4.96 | 112,198 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,629 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,346 |
| Counties of England | 0 | - | 4.97 | 801,429 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,242 |
| Flags of Asia Quiz | 0 | - | 4.99 | 618,454 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,635 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,380 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,735 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,010 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,600 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,134 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,908 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,289 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 50,433 |
| Countries of the Middle East | 0 | - | 4.96 | 202,309 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,684 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,412 |
| Flags of Africa Quiz | 0 | - | 5.00 | 475,961 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,100 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,323 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,095 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,984 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,357 |
| Top African Languages on a Map | 0 | - | 4.94 | 74,966 |
| African Island Countries | 0 | - | 4.96 | 102,271 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,334 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,575 |
| Flags of Oceania | 0 | - | 5.00 | 261,932 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,589 |
| Australia Cities Map Quiz | 0 | - | 4.82 | 146,328 |
| Australia Country Quiz | 0 | - | 4.43 | 69,782 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,892 |
| Regions of New Zealand | 0 | - | 4.84 | 28,677 |
| The Only American Country ... | 0 | - | 4.92 | 122,069 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,521 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 17,062 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,608 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,177 |
| Which Island in the United States? | 0 | - | 4.29 | 29,716 |
| American Foods | 0 | - | 3.66 | 39,425 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,142 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,320 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.27 | 14,806 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,414 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,964 |
| Branches of the U.S. Military | 0 | - | 4.40 | 24,474 |
| Old West History | 0 | - | 4.34 | 15,292 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,530 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,973 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,767 |
| US States Quiz | 0 | - | 5.00 | 16,965,216 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,718 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,770 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,678 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,497 |
| US States with the Most Executions | 0 | - | 4.51 | 26,421 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,140 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,208 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,224 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,786 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,869 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,237 |
