| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,183 |
| Peru True or False? | 0 | - | 4.58 | 15,281 |
| South America Map Quiz | 0 | - | 5.00 | 1,552,462 |
| New York True or False? | 0 | - | 4.53 | 33,873 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,808 |
| Word Chain - South America | 0 | - | 4.51 | 23,949 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,782 |
| United States Map Quiz | 0 | - | 4.98 | 4,164,863 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,759 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,472 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,218 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,657 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,886 |
| North America Map Quiz | 0 | - | 4.98 | 249,809 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,837 |
| Canada Provinces and Territories | 0 | - | 5.00 | 344,210 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 642,204 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,365 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 903,180 |
| Florida True or False? | 0 | - | 4.48 | 28,727 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,759 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,785 |
| Famous People from South America | 0 | - | 4.15 | 22,033 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,312 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,916 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,490 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,656 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,916 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,672 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,508 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,079 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,619 |
| States of Mexico | 0 | - | 4.96 | 177,112 |
| History of Mexico | 0 | - | 4.58 | 15,341 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,286 |
| States of Brazil | 0 | - | 4.97 | 88,845 |
| Central American Countries | 0 | - | 4.98 | 156,895 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,030 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 149,292 |
| Ireland True or False? | 0 | - | 4.57 | 49,697 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,315 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,743 |
| U.S. History True or False #1 | 0 | - | 4.36 | 31,266 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,761 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,342 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,986 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,453 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,699 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,481 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,776 |
| France True or False? | 0 | - | 4.44 | 39,996 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 221,164 |
| Most Common High School Mascots | 0 | - | 4.47 | 32,209 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,752 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,845 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,617 |
| Which Canadian Province? | 0 | - | 4.75 | 9,753 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,949 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,723 |
| Famous Caribbean People | 0 | - | 4.37 | 12,641 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,092 |
| Territories of the United States | 0 | - | 4.80 | 52,493 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,764 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,778 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,327 |
| Name a Valid Answer - United States #1 | 0 | - | 4.63 | 94,181 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,402 |
| California Multiple Choice | 0 | - | 4.40 | 28,132 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,190 |
| New York City Geography | 0 | - | 4.42 | 33,139 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,739 |
| Europe Map Quiz | 0 | - | 5.00 | 4,774,489 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,988 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,935 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,757 |
| Oceania Map Quiz | 0 | - | 4.98 | 655,827 |
| Australian Capitals | 0 | - | 4.92 | 62,776 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,801 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 25,095 |
| U.S. History Multiple Choice #1 | 0 | - | 4.31 | 22,266 |
| U.S. History Multiple Choice #4 | 0 | - | 4.24 | 25,629 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,627 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,576 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,402 |
| Official European Union Languages | 0 | - | 4.97 | 239,086 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,237 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,518 |
| Which European Country - Multiple Choice | 0 | - | 4.51 | 84,493 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,038 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,452 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,450,082 |
| Asia Map Quiz | 0 | - | 4.99 | 920,666 |
| Which Asian Country? | 0 | - | 4.64 | 57,651 |
| Africa Map Quiz | 0 | - | 5.00 | 2,123,099 |
| Which African Country? | 0 | - | 4.58 | 36,410 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,039 |
| Australia Map Quiz | 0 | - | 4.95 | 345,406 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,288 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,301 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,810 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,725 |
| South American Physical Geography | 0 | - | 4.58 | 18,379 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,540 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,384 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,741 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,686 |
| 75 Americans Named John | 0 | - | 4.41 | 23,937 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,090 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,145 |
| The Most Recent... United States | 0 | - | 4.46 | 18,516 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,193 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,770 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,117 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,765 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,320 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,441 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,770 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,123 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,063 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,492 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,798 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,113 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,988 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,215 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,568 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,378 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,249 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,013 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,772 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,092 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,846 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,310 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,152 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,953 |
| The Only European Country ... | 0 | - | 4.91 | 217,734 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,803 |
| Austria... or Australia? | 0 | - | 4.68 | 104,565 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,741 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,939 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,232 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,018 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,442 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,385,303 |
| Iran... or Iraq? | 0 | - | 4.32 | 33,618 |
| China Multiple Choice | 0 | - | 4.50 | 37,342 |
| Countries of Africa | 0 | - | 5.00 | 2,547,708 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,229 |
| African East Coast | 0 | - | 4.96 | 96,390 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,242 |
| South Africa Multiple Choice | 0 | - | 4.55 | 27,517 |
| Flags of Oceania | 0 | - | 5.00 | 260,977 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,473 |
| Australian States and Territories | 0 | - | 4.96 | 142,366 |
| Australia Cities Map Quiz | 0 | - | 4.82 | 146,075 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,388 |
| Australia True or False | 0 | - | 4.87 | 56,995 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,765 |
| Regions of New Zealand | 0 | - | 4.84 | 28,621 |
| Flags of North and South America | 0 | - | 4.99 | 374,843 |
| The Only American Country ... | 0 | - | 4.92 | 121,891 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,353 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 17,046 |
| South American Geography Quiz #2 | 0 | - | 4.38 | 42,194 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,887 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,158 |
| Which Island in the United States? | 0 | - | 4.29 | 29,640 |
| American Foods | 0 | - | 3.66 | 39,413 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,135 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,296 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.27 | 14,785 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,374 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,932 |
| U.S. Analogies | 0 | - | 4.27 | 19,702 |
| U.S. Groups of Five | 0 | - | 4.21 | 21,636 |
| Branches of the U.S. Military | 0 | - | 4.39 | 24,429 |
| Old West History | 0 | - | 4.34 | 15,288 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,529 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,962 |
| US States Quiz | 0 | - | 5.00 | 16,933,175 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,693 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,746 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,636 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,465 |
| US States with the Most Executions | 0 | - | 4.51 | 26,413 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,111 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,122 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,193 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,222 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.03 | 28,754 |
| Canada Decoder | 0 | - | 4.07 | 18,742 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,274 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,001 |
| Name a Valid Answer - United States #2 | 0 | - | 4.16 | 27,392 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 68,674 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,445 |
| Sahel Countries on a Map | 0 | - | 4.99 | 21,379 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,250,385 |
| Celtic Nations | 0 | - | 4.69 | 47,013 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,217 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,750 |
