| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,291 |
| South America Map Quiz | 0 | - | 5.00 | 1,542,373 |
| Word Chain - South America | 0 | - | 4.51 | 23,781 |
| United States Map Quiz | 0 | - | 4.98 | 4,144,354 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,226 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,289 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,433 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,013,986 |
| North America Map Quiz | 0 | - | 4.98 | 245,212 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,431 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,692 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,699 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,731 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,757 |
| Famous People from South America | 0 | - | 4.15 | 21,819 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,394 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,181 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,137 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 93,997 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,180 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,043 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,504 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,983 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,183 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,582 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,997 |
| States of Mexico | 0 | - | 4.95 | 173,826 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,144 |
| States of Brazil | 0 | - | 4.98 | 86,672 |
| Central American Countries | 0 | - | 4.98 | 155,228 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 146,264 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,061 |
| History of Mexico | 0 | - | 4.58 | 15,244 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,802 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,609 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,983 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,213 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,170 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,596 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,136 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,742 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,934 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,761 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 217,262 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,401 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,940 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,469 |
| Australian Capitals | 0 | - | 4.92 | 62,612 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,609 |
| Famous Caribbean People | 0 | - | 4.37 | 12,572 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 23,950 |
| Territories of the United States | 0 | - | 4.79 | 52,193 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,424 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,721 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,829 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,536 |
| New York City Geography | 0 | - | 4.42 | 32,969 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,291 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,709 |
| Official European Union Languages | 0 | - | 4.97 | 237,201 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,058 |
| Europe Map Quiz | 0 | - | 5.00 | 4,736,923 |
| Africa Map Quiz | 0 | - | 5.00 | 2,106,553 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,445 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,402 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,288 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,711 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,442,181 |
| Asia Map Quiz | 0 | - | 4.99 | 908,394 |
| Countries of Africa | 0 | - | 5.00 | 2,512,793 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,960 |
| African East Coast | 0 | - | 4.96 | 95,214 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,086 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,980 |
| Australia Map Quiz | 0 | - | 4.94 | 342,794 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,206 |
| Pixelated Americas Map | 0 | - | 4.39 | 46,877 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,631 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,224 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,491 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,136 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,124 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,658 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,544 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,841 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,365 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 32,827 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,454 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 74,932 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,232 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,457 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,384 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,437 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,191 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 81,970 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,659 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,214 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,513 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,353 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,380 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,681 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,605 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,862 |
| The Only European Country ... | 0 | - | 4.91 | 214,347 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,873 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,614 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,682 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,377,327 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,514 |
| Flags of Africa Quiz | 0 | - | 5.00 | 464,610 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,848 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,696 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,442 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,625 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,361 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,764 |
| African Island Countries | 0 | - | 4.96 | 100,922 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,944 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,819 |
| Australian States and Territories | 0 | - | 4.96 | 141,096 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,060 |
| Australia True or False | 0 | - | 4.87 | 56,569 |
| Flags of North and South America | 0 | - | 4.99 | 368,483 |
| South American Physical Geography | 0 | - | 4.58 | 18,286 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,615 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,019 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 44,987 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,041 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,111 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,569 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,261 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,229,736 |
| Celtic Nations | 0 | - | 4.69 | 46,838 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,321,339 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,873 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,456 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,754 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,595 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,947 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,264 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,595 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,858 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,441 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,339 |
| Slavic Countries | 0 | - | 4.96 | 111,006 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,100 |
| Counties of England | 0 | - | 4.97 | 790,448 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 350,932 |
| Flags of Asia Quiz | 0 | - | 4.99 | 606,880 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,459 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,940 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,536 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,397 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,954 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,656 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,823 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,051 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,282 |
| Countries of the Middle East | 0 | - | 4.96 | 199,274 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,291 |
| States of India | 0 | - | 4.94 | 190,821 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,226 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,041 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,321 |
| The Only African Country ... | 0 | - | 4.99 | 128,472 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,826 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,217 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,647 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,498 |
| Flags of Oceania | 0 | - | 5.00 | 255,940 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 26,999 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 144,565 |
| Australia Country Quiz | 0 | - | 4.43 | 69,353 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,152 |
| Regions of New Zealand | 0 | - | 4.85 | 28,265 |
| The Only American Country ... | 0 | - | 4.92 | 120,899 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,450 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 16,973 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,443 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,053 |
| Which Island in the United States? | 0 | - | 4.29 | 29,223 |
| American Foods | 0 | - | 3.66 | 39,294 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,115 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.94 | 32,033 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,675 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,224 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,818 |
| Old West History | 0 | - | 4.33 | 15,233 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,498 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,865 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,659 |
| US States Quiz | 0 | - | 5.00 | 16,731,273 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,591 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.44 | 29,600 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,406 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,193 |
| US States with the Most Executions | 0 | - | 4.51 | 26,356 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 28,948 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,679 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.40 | 40,088 |
