| Countries of South America with an Empty Map | 0 | - | 4.94 | 100,348 |
| South America Map Quiz | 0 | - | 5.00 | 1,492,859 |
| Word Chain - South America | 0 | - | 4.50 | 23,154 |
| United States Map Quiz | 0 | - | 4.98 | 4,055,399 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 110,299 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 138,536 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 119,627 |
| Countries of North America Quiz | 0 | - | 5.00 | 954,879 |
| North America Map Quiz | 0 | - | 4.98 | 224,617 |
| Third Most Common Language by U.S. State | 0 | - | 4.90 | 111,240 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 610,881 |
| Most Spoken Languages in Canada | 0 | - | 4.90 | 51,643 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,663 |
| Famous People from South America | 0 | - | 4.15 | 20,957 |
| Uruguay Country Quiz | 0 | - | 4.82 | 30,260 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 883,267 |
| North American Capitals - Map Quiz | 0 | - | 4.89 | 52,565 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 90,646 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 55,561 |
| U.S. State Border Crossings | 0 | - | 4.96 | 86,681 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 231,890 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.87 | 70,939 |
| Cities and Towns of Massachusetts | 0 | - | 4.90 | 68,577 |
| Canada Provinces and Territories | 0 | - | 4.99 | 312,127 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 89,492 |
| States of Mexico | 0 | - | 4.93 | 158,096 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.90 | 47,034 |
| States of Brazil | 0 | - | 4.98 | 78,465 |
| Central American Countries | 0 | - | 4.98 | 148,274 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 109,160 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 123,854 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 48,002 |
| History of Mexico | 0 | - | 4.58 | 14,757 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.89 | 25,342 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 509,848 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 39,563 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 79,110 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.94 | 153,846 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 173,687 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 120,350 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.83 | 66,990 |
| Top 10 Newest U.S. States | 0 | - | 4.84 | 83,138 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.83 | 63,437 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 258,164 |
| Most-Spoken Languages of the United States | 0 | - | 4.44 | 202,438 |
| Canada Geography Trivia | 0 | - | 4.79 | 46,400 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 94,826 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 268,446 |
| Australian Capitals | 0 | - | 4.92 | 61,889 |
| Largest Caribbean Islands | 0 | - | 4.06 | 16,094 |
| Famous Caribbean People | 0 | - | 4.37 | 12,351 |
| Saintly Islands of the Caribbean | 0 | - | 4.30 | 23,230 |
| Territories of the United States | 0 | - | 4.78 | 50,782 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.77 | 37,497 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 168,960 |
| Major non-NATO U.S. Allies | 0 | - | 4.50 | 49,262 |
| Name a Valid Answer - United States #1 | 0 | - | 4.63 | 90,704 |
| Canada Immigration by Country | 0 | - | 4.51 | 60,152 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 65,222 |
| Official European Union Languages | 0 | - | 4.98 | 228,212 |
| European Countries in their Native Language | 0 | - | 4.99 | 151,279 |
| Europe Map Quiz | 0 | - | 5.00 | 4,557,997 |
| Africa Map Quiz | 0 | - | 5.00 | 2,035,958 |
| Oceania Map Quiz | 0 | - | 4.98 | 605,789 |
| Native American Tribes in the US | 0 | - | 4.70 | 24,274 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 409,762 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,400,229 |
| Asia Map Quiz | 0 | - | 4.99 | 857,101 |
| Countries of Africa | 0 | - | 5.00 | 2,359,767 |
| African East Coast | 0 | - | 4.96 | 90,515 |
| Western Africa Map Quiz | 0 | - | 4.97 | 68,200 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 45,864 |
| Australia Map Quiz | 0 | - | 4.94 | 333,812 |
| Largest Land Animals of the Americas | 0 | - | 4.37 | 19,860 |
| Pixelated Americas Map | 0 | - | 4.40 | 44,863 |
| Hispanic Last Names in the U.S. | 0 | - | 4.30 | 53,891 |
| South American Geography Quiz #2 | 0 | - | 4.64 | 38,308 |
| South American Geography Quiz #1 | 0 | - | 4.74 | 31,743 |
| U.S. Federal Holidays | 0 | - | 4.30 | 97,886 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 60,917 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.20 | 51,797 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 39,543 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 97,311 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 73,324 |
| Top 10 Most Asian U.S. States | 0 | - | 4.79 | 73,279 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 80,272 |
| Top 10 Least Obese U.S. States | 0 | - | 4.76 | 71,979 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.47 | 81,359 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.44 | 50,818 |
| Top 10 Most White U.S. States | 0 | - | 4.50 | 78,250 |
| Top 10 Most German U.S. States | 0 | - | 4.49 | 57,407 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 39,128 |
| Canadian Geography on the Map | 0 | - | 4.58 | 25,320 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 201,867 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 89,721 |
| Countries That Use the Euro | 0 | - | 4.93 | 76,081 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 351,399 |
| Europe Geography Decoder | 0 | - | 4.85 | 67,104 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 104,645 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.84 | 40,713 |
| The Only European Country ... | 0 | - | 4.92 | 198,240 |
| Countries that Beat Switzerland | 0 | - | 4.87 | 40,181 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 89,839 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,341,690 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 95,627 |
| Flags of Africa Quiz | 0 | - | 5.00 | 426,621 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 25,463 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 208,638 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 111,468 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 154,912 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 129,142 |
| Top African Languages on a Map | 0 | - | 4.92 | 64,879 |
| African Island Countries | 0 | - | 4.96 | 96,141 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 234,354 |
| Australian States and Territories | 0 | - | 4.96 | 135,942 |
| Australian Immigration by Country | 0 | - | 4.82 | 75,540 |
| Australia True or False | 0 | - | 4.87 | 54,706 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 335,328 |
| South American Physical Geography | 0 | - | 4.58 | 17,844 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,103 |
| Embarrassing Chapters in US History | 0 | - | 4.19 | 32,427 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.64 | 44,001 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 35,218 |
| Bahamas Country Quiz | 0 | - | 4.62 | 18,459 |
| Straight Shot to Antarctica | 0 | - | 4.93 | 40,414 |
| Add A Letter - Make a European City | 0 | - | 4.87 | 22,364 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,134,617 |
| Celtic Nations | 0 | - | 4.74 | 46,026 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,270,550 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 185,958 |
| 10 Westernmost Countries in Europe | 0 | - | 4.95 | 145,605 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 203,763 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 83,021 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.84 | 84,060 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 298,856 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 144,948 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.94 | 60,255 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 82,804 |
| Eastern Europe Map Quiz | 0 | - | 4.90 | 121,991 |
| Slavic Countries | 0 | - | 4.96 | 106,693 |
| Germany Multiple Choice | 0 | - | 4.83 | 52,081 |
| Counties of England | 0 | - | 4.97 | 749,920 |
| Flags of Asia Quiz | 0 | - | 4.99 | 568,210 |
| East Asia Cities Map Quiz | 0 | - | 4.97 | 105,888 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 148,211 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 94,644 |
| 10 Easternmost Countries in Asia | 0 | - | 4.98 | 103,062 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 119,808 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 101,424 |
| Top Asian Languages on a Map | 0 | - | 4.94 | 66,555 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 221,464 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.94 | 44,356 |
| Countries of the Middle East | 0 | - | 4.95 | 188,460 |
| Countries where Arabic is an Official Language | 0 | - | 4.83 | 53,762 |
| States of India | 0 | - | 4.94 | 175,697 |
| 10 African Countries with the Most Tourists | 0 | - | 4.40 | 57,900 |
| Africa Geography Quiz #1 | 0 | - | 4.92 | 47,817 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.95 | 29,563 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 69,800 |
| The Only African Country ... | 0 | - | 4.98 | 124,842 |
| African Countries by a Single Clue | 0 | - | 4.92 | 66,075 |
| Pixelated Africa Map | 0 | - | 4.98 | 93,893 |
| Countries Closest to Africa | 0 | - | 4.95 | 151,227 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.90 | 29,629 |
| Flags of Oceania | 0 | - | 5.00 | 236,634 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.96 | 24,313 |
| Australia Cities Map Quiz | 0 | - | 4.86 | 139,424 |
| Australia Country Quiz | 0 | - | 4.43 | 60,111 |
| Australia... or New Zealand? | 0 | - | 4.83 | 58,643 |
| Regions of New Zealand | 0 | - | 4.83 | 26,510 |
| The Only American Country ... | 0 | - | 4.92 | 115,884 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 106,461 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.43 | 16,666 |
| North America Capitals Quiz | 0 | - | 4.99 | 203,147 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.09 | 26,584 |
| Which Island in the United States? | 0 | - | 4.19 | 19,207 |
| American Foods | 0 | - | 3.69 | 38,761 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 5,932 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.25 | 14,223 |
| U.S. Groups of Four Quiz | 0 | - | 4.38 | 24,466 |
| U.S. Groups of Three Quiz | 0 | - | 4.06 | 20,331 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.37 | 14,236 |
| New York City Geography | 0 | - | 4.38 | 23,888 |
| Old West History | 0 | - | 4.30 | 15,035 |
| Life of Benjamin Franklin | 0 | - | 4.22 | 6,388 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,480 |
| U.S. History Multiple Choice #3 | 0 | - | 4.42 | 24,143 |
| US States Quiz | 0 | - | 5.00 | 15,875,760 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,047 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.46 | 28,846 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.65 | 31,612 |
| U.S. States with Oldest Median Age | 0 | - | 4.32 | 41,056 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.30 | 43,041 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.40 | 71,411 |
| US States with the Most Executions | 0 | - | 4.51 | 26,083 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 28,140 |
| Top 10 Least White U.S. States | 0 | - | 4.19 | 45,321 |
| U.S. Geography - Multiple Choice | 0 | - | 4.45 | 23,909 |
| 20 Most-Visited Places in Canada | 0 | - | 4.22 | 12,742 |
| Canada Decoder | 0 | - | 4.10 | 18,299 |
