| Countries of South America with an Empty Map | 0 | - | 4.94 | 100,051 |
| South America Map Quiz | 0 | - | 5.00 | 1,490,082 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 94,663 |
| Word Chain - South America | 0 | - | 4.50 | 23,112 |
| Haiti... or Dominican Republic? | 0 | - | 4.69 | 39,491 |
| United States Map Quiz | 0 | - | 4.98 | 4,049,762 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 110,176 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 138,281 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 119,128 |
| Countries of North America Quiz | 0 | - | 5.00 | 951,423 |
| North America Map Quiz | 0 | - | 4.98 | 223,624 |
| Third Most Common Language by U.S. State | 0 | - | 4.90 | 111,085 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 609,501 |
| Most Spoken Languages in Canada | 0 | - | 4.90 | 51,428 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 882,120 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 27,824 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,646 |
| Famous People from South America | 0 | - | 4.15 | 20,905 |
| Uruguay Country Quiz | 0 | - | 4.82 | 30,181 |
| North American Capitals - Map Quiz | 0 | - | 4.89 | 52,295 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 90,392 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 55,165 |
| U.S. State Border Crossings | 0 | - | 4.96 | 86,522 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 231,475 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.87 | 70,747 |
| Cities and Towns of Massachusetts | 0 | - | 4.90 | 68,310 |
| Canada Provinces and Territories | 0 | - | 4.99 | 311,110 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 89,294 |
| States of Mexico | 0 | - | 4.93 | 157,407 |
| History of Mexico | 0 | - | 4.58 | 14,727 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.90 | 46,720 |
| States of Brazil | 0 | - | 4.97 | 78,002 |
| Central American Countries | 0 | - | 4.98 | 147,936 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 108,980 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 123,446 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.89 | 25,196 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 47,930 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,087 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 78,939 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.94 | 153,585 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 173,510 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 120,110 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.83 | 66,876 |
| Top 10 Newest U.S. States | 0 | - | 4.84 | 83,001 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.83 | 63,082 |
| France True or False? | 0 | - | 4.42 | 38,812 |
| Most-Spoken Languages of the United States | 0 | - | 4.44 | 201,459 |
| U.S. History Multiple Choice #3 | 0 | - | 4.42 | 24,113 |
| U.S. Geography - Multiple Choice | 0 | - | 4.45 | 23,859 |
| Canada Geography Trivia | 0 | - | 4.79 | 46,345 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 508,790 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 257,645 |
| Largest Caribbean Islands | 0 | - | 4.06 | 16,070 |
| Famous Caribbean People | 0 | - | 4.37 | 12,345 |
| Saintly Islands of the Caribbean | 0 | - | 4.30 | 23,176 |
| Territories of the United States | 0 | - | 4.78 | 50,681 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.75 | 37,387 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 168,635 |
| Major non-NATO U.S. Allies | 0 | - | 4.50 | 49,098 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 90,524 |
| California Multiple Choice | 0 | - | 4.40 | 27,574 |
| Florida Multiple Choice | 0 | - | 4.33 | 9,971 |
| Canada Immigration by Country | 0 | - | 4.51 | 60,013 |
| Europe Map Quiz | 0 | - | 5.00 | 4,546,114 |
| Save Europeans by Guessing Countries | 0 | - | 4.87 | 192,104 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 268,014 |
| Africa Map Quiz | 0 | - | 5.00 | 2,031,686 |
| Which African Country? | 0 | - | 4.58 | 35,544 |
| Oceania Map Quiz | 0 | - | 4.98 | 603,843 |
| Australian Capitals | 0 | - | 4.92 | 61,856 |
| Three Real and One Fake - U.S. History | 0 | - | 4.32 | 25,190 |
| U.S. History Multiple Choice #2 | 0 | - | 4.36 | 24,582 |
| U.S. History Multiple Choice #1 | 0 | - | 4.29 | 21,769 |
| U.S. History Multiple Choice #4 | 0 | - | 4.26 | 24,932 |
| Native American Tribes in the US | 0 | - | 4.70 | 24,217 |
| U.S. History Multiple Choice #5 | 0 | - | 4.32 | 11,095 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 64,987 |
| Official European Union Languages | 0 | - | 4.98 | 227,638 |
| European Countries in their Native Language | 0 | - | 4.99 | 150,967 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 408,748 |
| Which European Country - Multiple Choice | 0 | - | 4.51 | 82,597 |
| Slovakia... or Slovenia? | 0 | - | 4.70 | 40,842 |
| Which Country of the United Kingdom? | 0 | - | 4.57 | 37,439 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,397,643 |
| Asia Map Quiz | 0 | - | 4.99 | 853,874 |
| Which Asian Country? | 0 | - | 4.63 | 56,323 |
| Countries of Africa | 0 | - | 5.00 | 2,350,888 |
| African East Coast | 0 | - | 4.96 | 90,205 |
| Western Africa Map Quiz | 0 | - | 4.97 | 67,887 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 45,589 |
| Australia Map Quiz | 0 | - | 4.94 | 333,275 |
| Largest Land Animals of the Americas | 0 | - | 4.37 | 19,842 |
| Pixelated Americas Map | 0 | - | 4.40 | 44,707 |
| Hispanic Last Names in the U.S. | 0 | - | 4.30 | 53,851 |
| South American Geography Quiz #2 | 0 | - | 4.64 | 38,249 |
| South American Geography Quiz #1 | 0 | - | 4.74 | 31,697 |
| South American Physical Geography | 0 | - | 4.58 | 17,824 |
| U.S. Federal Holidays | 0 | - | 4.30 | 97,796 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 60,842 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.19 | 51,760 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 39,457 |
| Branches of the U.S. Military | 0 | - | 4.41 | 22,911 |
| Embarrassing Chapters in US History | 0 | - | 4.19 | 32,383 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.64 | 43,946 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 97,204 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 73,267 |
| Top 10 Most Asian U.S. States | 0 | - | 4.79 | 73,169 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 80,212 |
| Top 10 Least Obese U.S. States | 0 | - | 4.77 | 71,870 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.47 | 81,081 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.44 | 50,736 |
| Top 10 Most White U.S. States | 0 | - | 4.50 | 78,034 |
| Top 10 Most German U.S. States | 0 | - | 4.49 | 57,247 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 39,073 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 35,159 |
| Ten Most Rectangular U.S. States | 0 | - | 4.52 | 59,400 |
| Canadian Geography on the Map | 0 | - | 4.58 | 25,252 |
| Bahamas Country Quiz | 0 | - | 4.62 | 18,424 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 201,621 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.93 | 89,377 |
| Top 10 Oldest African Countries | 0 | - | 4.86 | 25,436 |
| Countries That Use the Euro | 0 | - | 4.92 | 75,517 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 350,579 |
| Europe Geography Decoder | 0 | - | 4.85 | 66,790 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 104,153 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.84 | 40,636 |
| The Only European Country ... | 0 | - | 4.92 | 197,389 |
| Austria... or Australia? | 0 | - | 4.78 | 101,481 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 40,286 |
| Iceland... or Ireland? | 0 | - | 4.74 | 55,539 |
| Countries that Beat Switzerland | 0 | - | 4.87 | 40,079 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 53,785 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,021 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 89,367 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,338,335 |
| Iran... or Iraq? | 0 | - | 4.32 | 32,535 |
| China Multiple Choice | 0 | - | 4.50 | 36,371 |
| Japanese Prefectures | 0 | - | 4.98 | 121,849 |
| States of India | 0 | - | 4.94 | 174,816 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 95,431 |
| Flags of Africa Quiz | 0 | - | 5.00 | 424,799 |
| Africa Geography Quiz #1 | 0 | - | 4.92 | 47,737 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 25,216 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 208,211 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 111,196 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 154,626 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.95 | 29,364 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 69,634 |
| African Countries with the Shortest Names | 0 | - | 4.97 | 128,658 |
| The Only African Country ... | 0 | - | 4.98 | 124,624 |
| African Countries by a Single Clue | 0 | - | 4.92 | 65,950 |
| Top African Languages on a Map | 0 | - | 4.92 | 64,356 |
| African Island Countries | 0 | - | 4.96 | 95,811 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 233,890 |
| Pixelated Africa Map | 0 | - | 4.98 | 93,622 |
| Countries Closest to Africa | 0 | - | 4.95 | 150,968 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.90 | 29,520 |
| South Africa Multiple Choice | 0 | - | 4.55 | 26,899 |
| Flags of Oceania | 0 | - | 5.00 | 235,432 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.96 | 24,206 |
| Australian States and Territories | 0 | - | 4.96 | 135,665 |
| Australia Cities Map Quiz | 0 | - | 4.86 | 138,966 |
| Australian Immigration by Country | 0 | - | 4.82 | 75,456 |
| Australia True or False | 0 | - | 4.87 | 54,585 |
| Australia... or New Zealand? | 0 | - | 4.83 | 58,517 |
| Regions of New Zealand | 0 | - | 4.83 | 26,431 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 334,197 |
| The Only American Country ... | 0 | - | 4.93 | 115,603 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 106,211 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.43 | 16,655 |
| North America Capitals Quiz | 0 | - | 4.99 | 202,198 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.09 | 26,560 |
| Which Island in the United States? | 0 | - | 4.19 | 18,980 |
| American Foods | 0 | - | 3.69 | 38,731 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 5,919 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.25 | 14,205 |
| U.S. Groups of Four Quiz | 0 | - | 4.38 | 24,430 |
| U.S. Groups of Three Quiz | 0 | - | 4.06 | 20,300 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.37 | 14,223 |
| 75 Americans Named John | 0 | - | 4.39 | 23,377 |
| New York City Geography | 0 | - | 4.38 | 23,873 |
| Old West History | 0 | - | 4.30 | 15,025 |
| Life of Benjamin Franklin | 0 | - | 4.22 | 6,384 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,463 |
| US States Quiz | 0 | - | 5.00 | 15,824,649 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,019 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.46 | 28,798 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.65 | 31,543 |
| U.S. States with Oldest Median Age | 0 | - | 4.32 | 40,939 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.29 | 42,962 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.40 | 71,259 |
| US States with the Most Executions | 0 | - | 4.51 | 26,074 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 28,102 |
| Top 10 Least White U.S. States | 0 | - | 4.19 | 45,151 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 23,220 |
| 20 Most-Visited Places in Canada | 0 | - | 4.22 | 12,713 |
| Canada Decoder | 0 | - | 4.10 | 18,267 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 101,081 |
| Straight Shot to Antarctica | 0 | - | 4.92 | 40,278 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 62,468 |
