| United States Map Quiz | 0 | - | 4.98 | 4,141,949 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,697 |
| North America Map Quiz | 0 | - | 4.98 | 244,481 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,380 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,937 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,971 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,617 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,813 |
| History of Mexico | 0 | - | 4.58 | 15,231 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,971 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 93,900 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 62,995 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,962 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,337 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,875 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,081 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,497 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,157 |
| Central American Countries | 0 | - | 4.98 | 155,059 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 145,899 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,907 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,885 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,083 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,493 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,071 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,661 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,837 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 216,728 |
| Most Common High School Mascots | 0 | - | 4.47 | 31,832 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,367 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,845 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,156 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,167 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,233 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,257 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,580 |
| Territories of the United States | 0 | - | 4.79 | 52,145 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,380 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,554 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,745 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,449 |
| New York City Geography | 0 | - | 4.42 | 32,936 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,225 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,755 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,354 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,329 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,884 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,262 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,911 |
| States of Mexico | 0 | - | 4.95 | 173,351 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,971 |
| States of Brazil | 0 | - | 4.98 | 86,390 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,588 |
| Famous Caribbean People | 0 | - | 4.37 | 12,566 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 23,928 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,015 |
| Word Chain - South America | 0 | - | 4.51 | 23,765 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,100 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,089 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,631 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,521 |
| 75 Americans Named John | 0 | - | 4.41 | 23,825 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,794 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,314 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 32,788 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,414 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 74,877 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,213 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,410 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 89,979 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,343 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,155 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 81,875 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,579 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 70,899 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,194 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,358 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 32,994 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 44,962 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,015 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,084 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,538 |
| Famous People from South America | 0 | - | 4.15 | 21,786 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,036 |
| Which Island in the United States? | 0 | - | 4.29 | 29,164 |
| American Foods | 0 | - | 3.66 | 39,277 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,109 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.94 | 31,697 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,667 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,190 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,805 |
| U.S. Analogies | 0 | - | 4.27 | 19,608 |
| Branches of the U.S. Military | 0 | - | 4.40 | 24,161 |
| Old West History | 0 | - | 4.33 | 15,223 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,490 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,853 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,645 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.44 | 29,582 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,362 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,164 |
| US States with the Most Executions | 0 | - | 4.51 | 26,349 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 28,922 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,617 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.40 | 40,067 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,026 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,584 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,662 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,127 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.02 | 27,282 |
| Canada Decoder | 0 | - | 4.12 | 18,648 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,526 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,108 |
| Australian Capitals | 0 | - | 4.92 | 62,593 |
| North America Cities by Map | 0 | - | 4.41 | 47,616 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,460 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,221 |
| California Multiple Choice | 0 | - | 4.40 | 28,042 |
| San Francisco Trivia | 0 | - | 4.32 | 15,662 |
| San Francisco A-Z | 0 | - | 4.18 | 9,521 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,165 |
| Boston City Trivia | 0 | - | 4.38 | 24,132 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,577 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,582 |
| Official European Union Languages | 0 | - | 4.97 | 236,535 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,704 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,486 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,383 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,330 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,679 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 24,988 |
| U.S. History Multiple Choice #1 | 0 | - | 4.31 | 22,156 |
| U.S. History Multiple Choice #4 | 0 | - | 4.26 | 25,490 |
| Top 10 Most Religious U.S. States | 0 | - | 4.31 | 19,232 |
| U.S. States with the Least Gun Ownership | 0 | - | 4.35 | 25,377 |
| Top 10 US States that Produce the Most Coal | 0 | - | 4.27 | 25,327 |
| U.S. States with Youngest Median Age | 0 | - | 4.32 | 20,556 |
| Top 10 U.S. States by Percent Born in State | 0 | - | 4.25 | 12,283 |
| Top 10 U.S. States by Percent Born out of State | 0 | - | 4.22 | 11,797 |
| U.S. States with the Most Workplace Fatalities | 0 | - | 4.09 | 9,534 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,481 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,209 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,440,517 |
| Asia Map Quiz | 0 | - | 4.99 | 907,057 |
| Countries of Africa | 0 | - | 5.00 | 2,508,015 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,818 |
| African East Coast | 0 | - | 4.96 | 95,057 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,927 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,800 |
| Australia Map Quiz | 0 | - | 4.94 | 342,495 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,194 |
| Pixelated Americas Map | 0 | - | 4.40 | 46,813 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,614 |
| South American Geography Quiz #2 | 0 | - | 4.62 | 39,197 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,471 |
| USA Tourist Attractions by Description #2 | 0 | - | 4.00 | 21,271 |
| American Inventions #1 | 0 | - | 3.63 | 31,461 |
| American Inventions #2 | 0 | - | 3.93 | 15,828 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,549 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,462 |
| Shrinking U.S. States | 0 | - | 4.37 | 40,196 |
| University of California Campuses | 0 | - | 3.84 | 8,860 |
| Famous Canadians Quiz | 0 | - | 3.94 | 23,361 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,155 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,210 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,448 |
| Countries That Use the Euro | 0 | - | 4.96 | 103,005 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,311 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,541 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,565 |
| The Only European Country ... | 0 | - | 4.91 | 213,841 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,545 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,569 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,475 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,940 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,436 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,423 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,631 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,581 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,279 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,509 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,115 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,462 |
| African Island Countries | 0 | - | 4.96 | 100,793 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,664 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,692 |
| Australian States and Territories | 0 | - | 4.96 | 140,908 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,021 |
| Australia True or False | 0 | - | 4.87 | 56,510 |
| Flags of North and South America | 0 | - | 4.99 | 367,269 |
| South American Physical Geography | 0 | - | 4.58 | 18,271 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,601 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,499 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 67,454 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,241 |
| Sahel Countries on a Map | 0 | - | 4.99 | 20,982 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,226,757 |
| Celtic Nations | 0 | - | 4.69 | 46,812 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,828 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,718 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,291 |
