| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,747 |
| South America Map Quiz | 0 | - | 5.00 | 1,546,777 |
| Word Chain - South America | 0 | - | 4.51 | 23,865 |
| United States Map Quiz | 0 | - | 4.98 | 4,152,262 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,488 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,972 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,217 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,019,827 |
| North America Map Quiz | 0 | - | 4.98 | 247,411 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,622 |
| Canada Provinces and Territories | 0 | - | 5.00 | 340,923 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 638,855 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,006 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,767 |
| Famous People from South America | 0 | - | 4.15 | 21,909 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,499 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,350 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,665 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,505 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,769 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,334 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,093 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,301 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,672 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,784 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,298 |
| States of Mexico | 0 | - | 4.95 | 175,353 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,555 |
| States of Brazil | 0 | - | 4.97 | 87,468 |
| Central American Countries | 0 | - | 4.98 | 155,809 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 147,595 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,187 |
| History of Mexico | 0 | - | 4.58 | 15,287 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,514 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,684 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,340 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,731 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,479 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,003 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,409 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,082 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,342 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,766 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 218,951 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,485 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,318 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,538 |
| Australian Capitals | 0 | - | 4.92 | 62,688 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,656 |
| Famous Caribbean People | 0 | - | 4.37 | 12,600 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,009 |
| Territories of the United States | 0 | - | 4.79 | 52,310 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,560 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,186 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,053 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,819 |
| New York City Geography | 0 | - | 4.42 | 33,046 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,495 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,969 |
| Official European Union Languages | 0 | - | 4.97 | 238,015 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,544 |
| Europe Map Quiz | 0 | - | 5.00 | 4,753,401 |
| Africa Map Quiz | 0 | - | 5.00 | 2,113,871 |
| Oceania Map Quiz | 0 | - | 4.98 | 640,114 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,655 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,435 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,287 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,446,110 |
| Asia Map Quiz | 0 | - | 4.99 | 913,852 |
| Countries of Africa | 0 | - | 5.00 | 2,528,314 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,515 |
| African East Coast | 0 | - | 4.96 | 95,739 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,555 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,411 |
| Australia Map Quiz | 0 | - | 4.95 | 343,701 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,241 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,067 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,706 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,298 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,547 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,413 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,243 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,693 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,596 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,950 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,557 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.72 | 32,961 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,555 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,104 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,330 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,609 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,722 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,698 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,340 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,343 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,871 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,790 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,282 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,597 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,547 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,378 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,796 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,853 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,697 |
| The Only European Country ... | 0 | - | 4.91 | 215,811 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,648 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,735 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,538 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,380,512 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,836 |
| Flags of Africa Quiz | 0 | - | 5.00 | 468,715 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,554 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,280 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,921 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,007 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,071 |
| Top African Languages on a Map | 0 | - | 4.93 | 73,555 |
| African Island Countries | 0 | - | 4.96 | 101,359 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,954 |
| Australian States and Territories | 0 | - | 4.96 | 141,599 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,211 |
| Australia True or False | 0 | - | 4.87 | 56,746 |
| Flags of North and South America | 0 | - | 4.99 | 371,538 |
| South American Physical Geography | 0 | - | 4.58 | 18,325 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,679 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,085 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 45,076 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,118 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,184 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,766 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,351 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,238,877 |
| Celtic Nations | 0 | - | 4.69 | 46,901 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,325,594 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,356 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,906 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,990 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,932 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,209 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,847 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 170,287 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,682 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,929 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,661 |
| Slavic Countries | 0 | - | 4.96 | 111,427 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,275 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,857 |
| Counties of England | 0 | - | 4.97 | 794,258 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 353,883 |
| Flags of Asia Quiz | 0 | - | 4.99 | 610,938 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,035 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,463 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,910 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,762 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,582 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,210 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,205 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,911 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 49,690 |
| Countries of the Middle East | 0 | - | 4.96 | 200,634 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,412 |
| States of India | 0 | - | 4.94 | 192,383 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,498 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,251 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,594 |
| The Only African Country ... | 0 | - | 4.99 | 128,878 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,035 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,599 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 321,245 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,944 |
| Flags of Oceania | 0 | - | 5.00 | 257,869 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,230 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 145,103 |
| Australia Country Quiz | 0 | - | 4.43 | 69,499 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,423 |
| Regions of New Zealand | 0 | - | 4.85 | 28,445 |
| The Only American Country ... | 0 | - | 4.92 | 121,354 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,877 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 17,002 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,898 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,097 |
| Which Island in the United States? | 0 | - | 4.29 | 29,401 |
| American Foods | 0 | - | 3.66 | 39,351 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,124 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,215 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,717 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,285 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,861 |
| Old West History | 0 | - | 4.33 | 15,256 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,515 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,911 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,704 |
| US States Quiz | 0 | - | 5.00 | 16,821,048 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,632 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,665 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,503 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,321 |
| US States with the Most Executions | 0 | - | 4.51 | 26,384 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,029 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,893 |
