| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,765 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,312 |
| States of Mexico | 0 | - | 4.95 | 173,320 |
| Central American Countries | 0 | - | 4.98 | 155,023 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,607 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,521 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,855 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,903 |
| Belize Country Quiz | 0 | - | 4.85 | 20,802 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,943 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 62,963 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,947 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,862 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,056 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,487 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,732 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,241 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,906 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,782 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,146 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,953 |
| States of Brazil | 0 | - | 4.98 | 86,376 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 145,865 |
| Name the U.S. National Parks | 0 | - | 4.86 | 58,892 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,654 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,139 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,878 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,524 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,615 |
| Pixelated United States Map | 0 | - | 4.89 | 93,466 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,452 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,839 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,718 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,345 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,398 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,658 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,894 |
| U.S. States By Population | 0 | - | 4.92 | 152,350 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,392 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,852 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,891 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,546 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,761 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,872 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,867 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,075 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,476 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,064 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,656 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,825 |
| Canada A-Z | 0 | - | 4.73 | 32,646 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,345 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,558 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,086 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,925 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,844 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,829 |
| History of Mexico | 0 | - | 4.58 | 15,230 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,094 |
| Flags of North and South America | 0 | - | 4.99 | 367,112 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,215 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,128 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,842 |
| Territories of the United States | 0 | - | 4.79 | 52,141 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,372 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,536 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,789 |
| New York City Geography | 0 | - | 4.42 | 32,929 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,218 |
| Famous Germans | 0 | - | 4.50 | 54,610 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,439 |
| The Only American Country ... | 0 | - | 4.92 | 120,750 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,331 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,754 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,353 |
| El Salvador Country Quiz | 0 | - | 4.62 | 31,470 |
| Guatemala Country Quiz | 0 | - | 4.63 | 25,206 |
| Honduras Country Quiz | 0 | - | 4.52 | 23,678 |
| Nicaragua Country Quiz | 0 | - | 4.62 | 26,362 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,322 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,835 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,261 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,473 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,075 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,109 |
| United States Country Quiz | 0 | - | 4.43 | 100,574 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,598 |
| Famous Canadians Quiz | 0 | - | 3.94 | 23,359 |
| Canada Country Quiz | 0 | - | 4.54 | 131,699 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,603 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,323 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,230 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,773 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,994 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,651 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,079 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,897 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,612 |
| Mexican Foods | 0 | - | 4.07 | 14,609 |
| South America A-Z | 0 | - | 4.13 | 10,837 |
| Word Chain - South America | 0 | - | 4.51 | 23,763 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,380 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,584 |
| Famous Caribbean People | 0 | - | 4.37 | 12,565 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 23,925 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,631 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,350 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 207,846 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,732 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,586 |
| New England States | 0 | - | 4.51 | 59,707 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,473 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,882 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,311 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,636 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,660 |
| U.S. States by Borders | 0 | - | 4.63 | 35,068 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,236 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,133 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 43,986 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,304 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 32,779 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,411 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 74,871 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,207 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,408 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 89,967 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,326 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,151 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 81,867 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,571 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,390 |
| Most-Visited Countries by Canadians | 0 | - | 4.77 | 39,117 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,192 |
| Canada or Africa by Area | 0 | - | 4.77 | 18,061 |
| Famous Australians by Description | 0 | - | 4.23 | 27,582 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,071 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,094 |
| South American Physical Geography | 0 | - | 4.58 | 18,269 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,275 |
| Jamaica Country Quiz | 0 | - | 4.58 | 34,858 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,339 |
| Top U.S. Universities | 0 | - | 4.15 | 144,061 |
| Largest United States Airlines | 0 | - | 4.39 | 54,834 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,928 |
| U.S. States by Governor | 0 | - | 4.43 | 17,983 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,572 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,545 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,752 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 32,992 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,275 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,029 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 44,958 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,766 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,385 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,392 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,015 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,390 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,663 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,533 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,878 |
| NHL Hockey Teams in Canada | 0 | - | 4.35 | 34,544 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,080 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,448 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,553 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,962 |
| Georgia ... or Georgia? | 0 | - | 4.69 | 76,413 |
| Africa A-Z | 0 | - | 4.57 | 46,367 |
| Famous People from South America | 0 | - | 4.15 | 21,784 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,034 |
| Which Island in the United States? | 0 | - | 4.29 | 29,152 |
| American Foods | 0 | - | 3.66 | 39,275 |
| U.S. Cities by Picture #1 | 0 | - | 4.37 | 34,352 |
| Cities by Picture #2 | 0 | - | 4.19 | 34,934 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,666 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,187 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,803 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,161 |
| Old West History | 0 | - | 4.33 | 15,223 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,490 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,851 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,643 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,602 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,461 |
| Flyover States | 0 | - | 4.52 | 29,392 |
| U.S. States With Double Letters | 0 | - | 4.54 | 23,912 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 75,809 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 127,987 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,596 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.44 | 29,577 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,358 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,156 |
| US States with the Most Executions | 0 | - | 4.51 | 26,347 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 28,918 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,310 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,609 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.40 | 40,067 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,024 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,127 |
| Canada Decoder | 0 | - | 4.12 | 18,646 |
