| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,064 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,478 |
| Word Chain - South America | 0 | - | 4.51 | 23,757 |
| United States Map Quiz | 0 | - | 4.98 | 4,139,998 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,120 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,093 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 127,970 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,657 |
| North America Map Quiz | 0 | - | 4.98 | 244,091 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,349 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,406 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,471 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,550 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,754 |
| Famous People from South America | 0 | - | 4.15 | 21,773 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,334 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,538 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,877 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 93,833 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 62,810 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,871 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,195 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,780 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 72,982 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,443 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,844 |
| States of Mexico | 0 | - | 4.95 | 173,072 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,813 |
| States of Brazil | 0 | - | 4.98 | 86,241 |
| Central American Countries | 0 | - | 4.98 | 154,933 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 145,640 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 48,999 |
| History of Mexico | 0 | - | 4.58 | 15,218 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,080 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,565 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,848 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,789 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,039 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,411 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,032 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,621 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,761 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,369 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 216,370 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,346 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,770 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 276,967 |
| Australian Capitals | 0 | - | 4.92 | 62,586 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,579 |
| Famous Caribbean People | 0 | - | 4.37 | 12,562 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 23,916 |
| Territories of the United States | 0 | - | 4.79 | 52,108 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,353 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,457 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,693 |
| Name a Valid Answer - United States #1 | 0 | - | 4.63 | 93,388 |
| New York City Geography | 0 | - | 4.42 | 32,885 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,174 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,535 |
| Official European Union Languages | 0 | - | 4.97 | 236,380 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,615 |
| Europe Map Quiz | 0 | - | 5.00 | 4,728,149 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,009 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,616 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,280 |
| Native American Tribes in the US | 0 | - | 4.70 | 25,252 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,919 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,438,404 |
| Asia Map Quiz | 0 | - | 4.99 | 906,069 |
| Countries of Africa | 0 | - | 5.00 | 2,505,100 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,742 |
| African East Coast | 0 | - | 4.96 | 94,949 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,822 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,726 |
| Australia Map Quiz | 0 | - | 4.94 | 342,269 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,190 |
| Pixelated Americas Map | 0 | - | 4.40 | 46,771 |
| Hispanic Last Names in the U.S. | 0 | - | 4.30 | 54,606 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,176 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,456 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,074 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,067 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,627 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,509 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,773 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,274 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 32,754 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,392 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 74,841 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,190 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,385 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 89,901 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,271 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,127 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 81,799 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,527 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,180 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,884 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,161 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,771 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,105 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,489 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,367 |
| The Only European Country ... | 0 | - | 4.91 | 213,552 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,355 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,535 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,337 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,077 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,338 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,413 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,505 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,482 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,171 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,442 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 151,950 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,284 |
| African Island Countries | 0 | - | 4.96 | 100,680 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,472 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,613 |
| Australian States and Territories | 0 | - | 4.95 | 140,563 |
| Australian Immigration by Country | 0 | - | 4.81 | 76,992 |
| Australia True or False | 0 | - | 4.87 | 56,470 |
| Flags of North and South America | 0 | - | 4.99 | 365,896 |
| South American Physical Geography | 0 | - | 4.58 | 18,263 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,595 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 32,979 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 44,946 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,008 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,066 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,463 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,226 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,224,562 |
| Celtic Nations | 0 | - | 4.69 | 46,797 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,734 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,607 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,210 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,083 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,414 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,790 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,596 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,588 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,201 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,174 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,082 |
| Slavic Countries | 0 | - | 4.96 | 110,783 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,017 |
| Counties of England | 0 | - | 4.97 | 788,480 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,282 |
| Flags of Asia Quiz | 0 | - | 4.99 | 604,673 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,280 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,682 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,328 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,145 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,602 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,379 |
| Top Asian Languages on a Map | 0 | - | 4.94 | 70,605 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,644 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,029 |
| Countries of the Middle East | 0 | - | 4.96 | 198,741 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,219 |
| States of India | 0 | - | 4.94 | 189,760 |
| 10 African Countries with the Most Tourists | 0 | - | 4.38 | 60,113 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,979 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,206 |
| The Only African Country ... | 0 | - | 4.99 | 128,285 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,743 |
| Pixelated Africa Map | 0 | - | 4.98 | 98,982 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,208 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,027 |
| Flags of Oceania | 0 | - | 5.00 | 254,742 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 26,883 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 144,315 |
| Australia Country Quiz | 0 | - | 4.43 | 69,243 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,019 |
| Regions of New Zealand | 0 | - | 4.85 | 28,103 |
| The Only American Country ... | 0 | - | 4.92 | 120,673 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,276 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 16,956 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,585 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,028 |
| Which Island in the United States? | 0 | - | 4.29 | 29,132 |
| American Foods | 0 | - | 3.66 | 39,269 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,107 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,658 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,173 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,790 |
| Old West History | 0 | - | 4.32 | 15,217 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,486 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,840 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,635 |
| US States Quiz | 0 | - | 5.00 | 16,682,936 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,562 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.44 | 29,567 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,342 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,135 |
| US States with the Most Executions | 0 | - | 4.51 | 26,346 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 28,906 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,576 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.40 | 40,055 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,648 |
