| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,566 |
| South America Map Quiz | 0 | - | 5.00 | 1,545,082 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,159 |
| Word Chain - South America | 0 | - | 4.51 | 23,840 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,646 |
| United States Map Quiz | 0 | - | 4.98 | 4,149,025 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,416 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,546 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,909 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,017,714 |
| North America Map Quiz | 0 | - | 4.98 | 246,753 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,558 |
| Canada Provinces and Territories | 0 | - | 5.00 | 340,036 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 637,994 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,888 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,910 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,652 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,761 |
| Famous People from South America | 0 | - | 4.15 | 21,882 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,461 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,465 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,326 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,535 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,225 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,891 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,187 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,499 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,709 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,154 |
| States of Mexico | 0 | - | 4.95 | 174,830 |
| History of Mexico | 0 | - | 4.58 | 15,265 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,403 |
| States of Brazil | 0 | - | 4.97 | 87,205 |
| Central American Countries | 0 | - | 4.98 | 155,563 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 146,993 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,149 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,653 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,230 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,569 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,397 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,896 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,343 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,000 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,224 |
| France True or False? | 0 | - | 4.43 | 39,864 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 218,302 |
| Most Common High School Mascots | 0 | - | 4.47 | 31,971 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,691 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,733 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,454 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,901 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,445 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,643 |
| Famous Caribbean People | 0 | - | 4.37 | 12,594 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 23,987 |
| Territories of the United States | 0 | - | 4.79 | 52,264 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,499 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,012 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,964 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,726 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,287 |
| California Multiple Choice | 0 | - | 4.40 | 28,069 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,172 |
| New York City Geography | 0 | - | 4.42 | 33,027 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,402 |
| Europe Map Quiz | 0 | - | 5.00 | 4,747,187 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,186 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,225 |
| Africa Map Quiz | 0 | - | 5.00 | 2,111,151 |
| Which African Country? | 0 | - | 4.58 | 36,307 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,780 |
| Australian Capitals | 0 | - | 4.92 | 62,665 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,564 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,733 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 25,031 |
| U.S. History Multiple Choice #1 | 0 | - | 4.31 | 22,203 |
| U.S. History Multiple Choice #4 | 0 | - | 4.26 | 25,538 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,342 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,527 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,872 |
| Official European Union Languages | 0 | - | 4.97 | 237,715 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,352 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,635 |
| Which European Country - Multiple Choice | 0 | - | 4.51 | 84,235 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,867 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,188 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,444,177 |
| Asia Map Quiz | 0 | - | 4.99 | 911,316 |
| Which Asian Country? | 0 | - | 4.64 | 57,490 |
| Countries of Africa | 0 | - | 5.00 | 2,522,381 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,303 |
| African East Coast | 0 | - | 4.96 | 95,560 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,393 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,236 |
| Australia Map Quiz | 0 | - | 4.94 | 343,339 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,225 |
| Pixelated Americas Map | 0 | - | 4.39 | 46,992 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,676 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,269 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,528 |
| South American Physical Geography | 0 | - | 4.58 | 18,313 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,378 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,212 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,680 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,573 |
| 75 Americans Named John | 0 | - | 4.41 | 23,866 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,901 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,051 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 45,045 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,473 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.72 | 32,912 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,520 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,037 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,291 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,565 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,601 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,598 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,281 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,215 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,811 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,433 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,085 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,148 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,258 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,145 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,171 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,484 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,772 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,020 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,305 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,760 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,373 |
| The Only European Country ... | 0 | - | 4.91 | 215,258 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,388 |
| Austria... or Australia? | 0 | - | 4.68 | 104,120 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,545 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,675 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,056 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,902 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,249 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,379,301 |
| Iran... or Iraq? | 0 | - | 4.32 | 33,508 |
| China Multiple Choice | 0 | - | 4.50 | 37,228 |
| States of India | 0 | - | 4.94 | 191,816 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,667 |
| Flags of Africa Quiz | 0 | - | 5.00 | 467,149 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,210 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,280 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,930 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,715 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,861 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,488 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,799 |
| The Only African Country ... | 0 | - | 4.99 | 128,724 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,939 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,259 |
| African Island Countries | 0 | - | 4.96 | 101,198 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,686 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,444 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,746 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,996 |
| South Africa Multiple Choice | 0 | - | 4.55 | 27,433 |
| Flags of Oceania | 0 | - | 5.00 | 257,137 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,141 |
| Australian States and Territories | 0 | - | 4.96 | 141,397 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 144,877 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,149 |
| Australia True or False | 0 | - | 4.87 | 56,685 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,321 |
| Regions of New Zealand | 0 | - | 4.85 | 28,408 |
| Flags of North and South America | 0 | - | 4.99 | 370,449 |
| The Only American Country ... | 0 | - | 4.92 | 121,198 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,754 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 16,994 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,360 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,081 |
| Which Island in the United States? | 0 | - | 4.29 | 29,342 |
| American Foods | 0 | - | 3.66 | 39,329 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,121 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.94 | 32,177 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,701 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,258 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,846 |
| U.S. Analogies | 0 | - | 4.27 | 19,642 |
| Branches of the U.S. Military | 0 | - | 4.40 | 24,262 |
| Old West History | 0 | - | 4.33 | 15,242 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,509 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,893 |
| US States Quiz | 0 | - | 5.00 | 16,786,203 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,615 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.44 | 29,639 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,467 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,276 |
| US States with the Most Executions | 0 | - | 4.51 | 26,372 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 28,993 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,817 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,076 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,155 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.02 | 28,352 |
| Canada Decoder | 0 | - | 4.12 | 18,687 |
