| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,228 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,794 |
| Word Chain - South America | 0 | - | 4.51 | 23,769 |
| United States Map Quiz | 0 | - | 4.98 | 4,143,265 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,187 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,228 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,347 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,012,815 |
| North America Map Quiz | 0 | - | 4.98 | 244,800 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,398 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,297 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,339 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,681 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,755 |
| Famous People from South America | 0 | - | 4.15 | 21,798 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,367 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,993 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,068 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 93,951 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,080 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,009 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,437 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,931 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,121 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,541 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,968 |
| States of Mexico | 0 | - | 4.95 | 173,585 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,051 |
| States of Brazil | 0 | - | 4.98 | 86,496 |
| Central American Countries | 0 | - | 4.98 | 155,161 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 146,101 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,038 |
| History of Mexico | 0 | - | 4.58 | 15,237 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,609 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,596 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,946 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,960 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,125 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,545 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,098 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,706 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,884 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,670 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 216,986 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,381 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,906 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,249 |
| Australian Capitals | 0 | - | 4.92 | 62,598 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,601 |
| Famous Caribbean People | 0 | - | 4.37 | 12,569 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 23,941 |
| Territories of the United States | 0 | - | 4.79 | 52,170 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,409 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,649 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,785 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,489 |
| New York City Geography | 0 | - | 4.42 | 32,954 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,259 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,637 |
| Official European Union Languages | 0 | - | 4.97 | 237,058 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,774 |
| Europe Map Quiz | 0 | - | 5.00 | 4,733,996 |
| Africa Map Quiz | 0 | - | 5.00 | 2,105,531 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,907 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,363 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,278 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,500 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,441,744 |
| Asia Map Quiz | 0 | - | 4.99 | 907,742 |
| Countries of Africa | 0 | - | 5.00 | 2,510,266 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,889 |
| African East Coast | 0 | - | 4.96 | 95,133 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,009 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,890 |
| Australia Map Quiz | 0 | - | 4.94 | 342,663 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,203 |
| Pixelated Americas Map | 0 | - | 4.40 | 46,846 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,623 |
| South American Geography Quiz #2 | 0 | - | 4.62 | 39,205 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,479 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,123 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,112 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,633 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,534 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,816 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,349 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 32,807 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,434 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 74,911 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,226 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,440 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,273 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,408 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,172 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 81,922 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,617 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,198 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,306 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,255 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,184 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,511 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,570 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,716 |
| The Only European Country ... | 0 | - | 4.91 | 214,089 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,724 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,585 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,565 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,376,627 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,471 |
| Flags of Africa Quiz | 0 | - | 5.00 | 464,000 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,729 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,641 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,365 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,554 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,250 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,583 |
| African Island Countries | 0 | - | 4.96 | 100,861 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,827 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,773 |
| Australian States and Territories | 0 | - | 4.96 | 140,985 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,035 |
| Australia True or False | 0 | - | 4.87 | 56,536 |
| Flags of North and South America | 0 | - | 4.99 | 367,922 |
| South American Physical Geography | 0 | - | 4.58 | 18,279 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,608 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 32,999 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 44,978 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,027 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,097 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,532 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,251 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,228,331 |
| Celtic Nations | 0 | - | 4.69 | 46,826 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,320,633 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,783 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,386 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,542 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,530 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,912 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,024 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,179 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,651 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,353 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,280 |
| Slavic Countries | 0 | - | 4.96 | 110,924 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,065 |
| Counties of England | 0 | - | 4.97 | 789,854 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 350,455 |
| Flags of Asia Quiz | 0 | - | 4.99 | 606,249 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,410 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,865 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,481 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,328 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,847 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,589 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,756 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,926 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,226 |
| Countries of the Middle East | 0 | - | 4.96 | 199,115 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,267 |
| States of India | 0 | - | 4.94 | 190,517 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,192 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,020 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,283 |
| The Only African Country ... | 0 | - | 4.99 | 128,412 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,806 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,149 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,497 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,168 |
| Flags of Oceania | 0 | - | 5.00 | 255,603 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 26,953 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 144,499 |
| Australia Country Quiz | 0 | - | 4.43 | 69,321 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,100 |
| Regions of New Zealand | 0 | - | 4.85 | 28,231 |
| The Only American Country ... | 0 | - | 4.92 | 120,834 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,410 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 16,969 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,150 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,042 |
| Which Island in the United States? | 0 | - | 4.29 | 29,190 |
| American Foods | 0 | - | 3.66 | 39,285 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,111 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.94 | 31,904 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,670 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,207 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,810 |
| Old West History | 0 | - | 4.33 | 15,228 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,495 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,858 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,652 |
| US States Quiz | 0 | - | 5.00 | 16,716,791 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,586 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.44 | 29,591 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,387 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,181 |
| US States with the Most Executions | 0 | - | 4.51 | 26,352 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 28,937 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,655 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.40 | 40,080 |
