| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,361 |
| South America Map Quiz | 0 | - | 5.00 | 1,554,812 |
| Word Chain - South America | 0 | - | 4.51 | 23,988 |
| United States Map Quiz | 0 | - | 4.98 | 4,168,759 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,889 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,676 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,486 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,725 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,029,622 |
| North America Map Quiz | 0 | - | 4.98 | 251,071 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,938 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,470 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 643,495 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,487 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,790 |
| Famous People from South America | 0 | - | 4.15 | 22,068 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 904,455 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,697 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 95,062 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,786 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,802 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,671 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,849 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 74,858 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,204 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,728 |
| States of Mexico | 0 | - | 4.96 | 177,815 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,634 |
| States of Brazil | 0 | - | 4.97 | 89,375 |
| Central American Countries | 0 | - | 4.98 | 157,175 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,193 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 149,992 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,360 |
| History of Mexico | 0 | - | 4.52 | 15,358 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,990 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,823 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,978 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,553 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,117 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,595 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,780 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,593 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,928 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 221,992 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,660 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,118 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,980 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,414 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,123 |
| Australian Capitals | 0 | - | 4.92 | 62,812 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,763 |
| Famous Caribbean People | 0 | - | 4.37 | 12,652 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,126 |
| Territories of the United States | 0 | - | 4.80 | 52,579 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,841 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,989 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,461 |
| Name a Valid Answer - United States #1 | 0 | - | 4.62 | 94,318 |
| New York City Geography | 0 | - | 4.43 | 33,172 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,826 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,609 |
| Official European Union Languages | 0 | - | 4.97 | 239,538 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,513 |
| Europe Map Quiz | 0 | - | 5.00 | 4,782,468 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,359 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,698 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,404 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,451,414 |
| Asia Map Quiz | 0 | - | 4.99 | 923,687 |
| Africa Map Quiz | 0 | - | 5.00 | 2,126,706 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,329 |
| Australia Map Quiz | 0 | - | 4.95 | 345,889 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,308 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,377 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,840 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 43,638 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,844 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,602 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,424 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,763 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,709 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,148 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,885 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,193 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,808 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,411 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,486 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,828 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,285 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,202 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,553 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,972 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,215 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 47,055 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,411 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,586 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,864 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,432 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,886 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,251 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,835 |
| The Only European Country ... | 0 | - | 4.91 | 218,542 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,254 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,015 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,769 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,386,546 |
| Countries of Africa | 0 | - | 5.00 | 2,554,797 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,684 |
| African East Coast | 0 | - | 4.96 | 96,620 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,460 |
| Australian States and Territories | 0 | - | 4.96 | 142,693 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,454 |
| Australia True or False | 0 | - | 4.87 | 57,090 |
| Flags of North and South America | 0 | - | 4.99 | 376,167 |
| South American Physical Geography | 0 | - | 4.58 | 18,390 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,767 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,180 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,242 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,248 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,275 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,116 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,481 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,254,827 |
| Celtic Nations | 0 | - | 4.61 | 47,072 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,334,199 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,348 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,894 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,375 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,654 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,928 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,331 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,201 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,160 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,006 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,677 |
| Slavic Countries | 0 | - | 4.96 | 112,234 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,643 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,375 |
| Counties of England | 0 | - | 4.97 | 801,719 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,536 |
| Flags of Asia Quiz | 0 | - | 4.99 | 618,733 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,665 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,410 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,777 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,042 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,645 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,180 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,945 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,347 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 50,466 |
| Countries of the Middle East | 0 | - | 4.96 | 202,371 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,697 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,423 |
| Flags of Africa Quiz | 0 | - | 5.00 | 476,213 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,156 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,346 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,136 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 34,005 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,412 |
| Top African Languages on a Map | 0 | - | 4.94 | 75,030 |
| African Island Countries | 0 | - | 4.96 | 102,307 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,382 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,592 |
| Flags of Oceania | 0 | - | 5.00 | 262,082 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,626 |
| Australia Cities Map Quiz | 0 | - | 4.82 | 146,358 |
| Australia Country Quiz | 0 | - | 4.43 | 69,791 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,914 |
| Regions of New Zealand | 0 | - | 4.84 | 28,686 |
| The Only American Country ... | 0 | - | 4.92 | 122,103 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,556 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 17,068 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,720 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,181 |
| Which Island in the United States? | 0 | - | 4.29 | 29,727 |
| American Foods | 0 | - | 3.66 | 39,427 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,143 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,323 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.27 | 14,808 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,421 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,967 |
| Old West History | 0 | - | 4.34 | 15,293 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,530 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,977 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,767 |
| US States Quiz | 0 | - | 5.00 | 16,971,053 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,719 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,773 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,690 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,507 |
| US States with the Most Executions | 0 | - | 4.51 | 26,421 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,144 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,217 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,227 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,794 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,880 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,240 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.07 | 28,841 |
| Canada Decoder | 0 | - | 4.07 | 18,761 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,418 |
