| U.S. Citizenship Test Questions | 0 | - | 4.86 | 220,322 |
| United States Map Quiz | 0 | - | 4.98 | 3,877,791 |
| U.S. State Border Crossings | 0 | - | 4.96 | 81,351 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.82 | 32,310 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 64,525 |
| Cities and Towns of Massachusetts | 0 | - | 4.89 | 59,041 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.83 | 53,941 |
| Total United States Immigration by Country | 0 | - | 4.89 | 95,741 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.93 | 144,855 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.95 | 181,538 |
| U.S. Cabinet Departments | 0 | - | 4.85 | 67,180 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 337,819 |
| U.S. Federal Holidays | 0 | - | 4.29 | 95,314 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.84 | 20,950 |
| Major non-NATO U.S. Allies | 0 | - | 4.43 | 33,090 |
| Pixelated United States Map | 0 | - | 4.91 | 81,134 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 91,762 |
| Countries that Visit the United States the Most | 0 | - | 4.95 | 77,380 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 99,219 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 94,886 |
| 10 Southernmost U.S. States | 0 | - | 4.84 | 97,923 |
| U.S. States with Short Names | 0 | - | 4.87 | 128,072 |
| U.S. States that Start with M | 0 | - | 4.91 | 148,927 |
| U.S. States By Population | 0 | - | 4.90 | 129,063 |
| U.S. States that Start with N | 0 | - | 4.95 | 154,090 |
| U.S. States with Longest Names | 0 | - | 4.84 | 35,380 |
| 10 Northernmost U.S. States | 0 | - | 4.86 | 59,572 |
| U.S. States with a Unique First Letter | 0 | - | 4.95 | 76,892 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 57,774 |
| The Only Remaining U.S. State . . . | 0 | - | 4.95 | 52,453 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 144,167 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 166,531 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.85 | 98,434 |
| Florida Pro Sport Teams | 0 | - | 4.86 | 7,178 |
| The United States... or the United Kingdom? | 0 | - | 4.89 | 89,389 |
| Countries of North America Quiz | 0 | - | 5.00 | 867,442 |
| Countries that Beat the United States | 0 | - | 4.92 | 143,348 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.89 | 88,236 |
| U.S. States with the Most Immigrants | 0 | - | 4.86 | 72,547 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 572,720 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 846,584 |
| North American Capitals - Map Quiz | 0 | - | 4.91 | 46,281 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 45,639 |
| American Legal Vocabulary | 0 | - | 4.43 | 31,947 |
| Canada Provinces and Territories | 0 | - | 4.99 | 286,325 |
| Territories of the United States | 0 | - | 4.76 | 48,159 |
| Most Mentioned Enemies of the USA | 0 | - | 4.79 | 158,324 |
| States of Mexico | 0 | - | 4.94 | 137,945 |
| Mexico States Map Quiz | 0 | - | 4.84 | 89,263 |
| Central American Countries | 0 | - | 4.98 | 137,659 |
| Caribbean Countries and Territories | 0 | - | 4.83 | 103,388 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 115,240 |
| U.S. State Nicknames Quiz | 0 | - | 4.49 | 45,737 |
| U.S. National Parks Quiz | 0 | - | 4.79 | 46,137 |
| Countries with American Expatriates | 0 | - | 4.59 | 40,784 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 38,103 |
| United States Country Quiz | 0 | - | 4.45 | 87,726 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 71,902 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.77 | 56,257 |
| Countries Closest to Canada | 0 | - | 4.90 | 183,074 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.23 | 5,672 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 197,949 |
| New England States | 0 | - | 4.53 | 52,333 |
| US States by Land Area | 0 | - | 4.59 | 48,146 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.52 | 35,959 |
| Add a Letter - Make a U.S. State | 0 | - | 4.76 | 75,875 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 50,589 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.76 | 36,936 |
| Save Americans by Guessing U.S. States | 0 | - | 4.56 | 146,700 |
| 10 Easternmost U.S. States | 0 | - | 4.54 | 52,629 |
| The Only U.S. State ... #1 | 0 | - | 4.55 | 82,049 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.47 | 40,217 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.47 | 93,031 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.79 | 56,058 |
| Top 10 Most African-American U.S. States | 0 | - | 4.47 | 61,185 |
| Top 10 Newest U.S. States | 0 | - | 4.80 | 67,600 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 61,215 |
| Top 10 Most Obese U.S. States | 0 | - | 4.50 | 64,636 |
| Top 10 Least Obese U.S. States | 0 | - | 4.79 | 67,373 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.51 | 63,986 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.44 | 47,630 |
| Top 10 Most White U.S. States | 0 | - | 4.52 | 54,972 |
| Top 10 Most German U.S. States | 0 | - | 4.49 | 42,023 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.44 | 37,169 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.65 | 41,809 |
| Countries that Beat Canada | 0 | - | 4.91 | 77,333 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.46 | 13,685 |
| Red State or Blue State Trait? | 0 | - | 4.43 | 47,581 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.74 | 53,734 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.76 | 52,645 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.75 | 42,100 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.52 | 58,070 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.51 | 33,715 |
| Top 10 U.S. States People are Moving To | 0 | - | 4.64 | 46,488 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 104,638 |
| South America Map Quiz | 0 | - | 5.00 | 1,408,610 |
| Belize Country Quiz | 0 | - | 4.88 | 18,525 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.87 | 16,879 |
| Top U.S. Universities | 0 | - | 4.11 | 111,702 |
| Largest United States Airlines | 0 | - | 4.38 | 51,788 |
| Third Most Common Language by U.S. State | 0 | - | 4.90 | 105,972 |
| U.S. States by Governor Quiz | 0 | - | 4.42 | 16,875 |
| U.S. Political Parties in History | 0 | - | 4.42 | 26,022 |
| U.S. Government Agencies | 0 | - | 4.41 | 17,482 |
| Canada A-Z | 0 | - | 4.66 | 30,379 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.89 | 78,912 |
| Georgia ... or Georgia? | 0 | - | 4.79 | 71,333 |
| The Americas Geography by Letter - B | 0 | - | 4.50 | 48,690 |
| The Americas Geography by Letter - S | 0 | - | 4.55 | 41,397 |
| Dominica Country Quiz | 0 | - | 4.82 | 17,560 |
| Cities by Picture #2 | 0 | - | 4.22 | 32,103 |
| American Geography Quiz for Dummies | 0 | - | 4.33 | 52,533 |
| The U.S. Government - How Does it Work? | 0 | - | 4.33 | 39,625 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.40 | 55,268 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.34 | 70,305 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.49 | 20,398 |
| Flyover States | 0 | - | 4.51 | 27,830 |
| U.S. States With Double Letters | 0 | - | 4.67 | 3,907 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.29 | 57,277 |
| U.S. States by Borders | 0 | - | 4.59 | 26,051 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.38 | 120,392 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.46 | 27,503 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.65 | 29,545 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.30 | 40,439 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.34 | 62,476 |
| US States with the Most Executions | 0 | - | 4.51 | 25,609 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.60 | 26,815 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.48 | 34,794 |
| Top 10 Least White U.S. States | 0 | - | 4.18 | 36,252 |
| Top 10 Least Happy U.S. States | 0 | - | 4.55 | 22,073 |
| Canada Immigration by Country | 0 | - | 4.52 | 56,682 |
| Asian Geography By Letter - B | 0 | - | 4.82 | 60,479 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 305,805 |
| The Only American Country ... | 0 | - | 4.94 | 108,743 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 99,853 |
| North America Capitals Quiz | 0 | - | 4.99 | 183,733 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.12 | 25,964 |
| American Islands | 0 | - | 4.16 | 15,698 |
| American Foods | 0 | - | 3.69 | 38,084 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.19 | 13,566 |
| U.S. Groups of Four Quiz | 0 | - | 4.37 | 23,107 |
| U.S. Groups of Three Quiz | 0 | - | 4.03 | 19,391 |
| New York City Geography | 0 | - | 4.40 | 23,330 |
| Old West History | 0 | - | 4.28 | 14,758 |
| Life of Benjamin Franklin | 0 | - | 4.18 | 6,204 |
| American Revolution - Multiple Choice | 0 | - | 4.31 | 18,690 |
| US States Quiz | 0 | - | 5.00 | 14,543,335 |
| U.S. States with the Lowest HDI | 0 | - | 4.46 | 27,354 |
| Which U.S. State - Multiple Choice | 0 | - | 4.45 | 18,837 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.34 | 40,012 |
| Top 10 U.S. States People are Leaving | 0 | - | 4.40 | 49,440 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.54 | 31,620 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.60 | 30,822 |
| Canada Country Quiz | 0 | - | 4.49 | 120,279 |
| Canada Cities Map Quiz | 0 | - | 4.65 | 108,689 |
| Category Elimination - European Geography #3 | 0 | - | 4.84 | 64,336 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 80,233 |
| American Countries With No Atlantic Coastline | 0 | - | 4.90 | 72,511 |
| The Americas Geography by Letter - C | 0 | - | 4.28 | 54,514 |
| The Americas Geography by Letter - A | 0 | - | 4.28 | 41,665 |
| The Americas Geography by Letter - T | 0 | - | 4.23 | 38,369 |
| The Americas Geography by Letter - P | 0 | - | 4.36 | 36,107 |
| The Americas Geography by Letter - M | 0 | - | 4.40 | 36,157 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.12 | 16,393 |
| History of Mexico | 0 | - | 4.55 | 13,773 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 92,920 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.89 | 38,547 |
| Brazil States Map Quiz | 0 | - | 4.83 | 38,841 |
| States of Brazil | 0 | - | 4.96 | 67,031 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 18,307 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.18 | 696,260 |
| U.S. States by Picture #1 | 0 | - | 4.15 | 14,258 |
| Most-Visited U.S. Cities | 0 | - | 4.87 | 70,902 |
| Every U.S. Metro Area on a Map | 0 | - | 4.96 | 61,747 |
| Senators Who Ran For President | 0 | - | 4.28 | 16,237 |
| U.S. Electoral College Landslides | 0 | - | 4.32 | 20,911 |
| California Multiple Choice | 0 | - | 4.40 | 26,717 |
| Geography of California | 0 | - | 4.23 | 9,607 |
| California Pro Sport Teams | 0 | - | 4.22 | 21,989 |
| San Francisco Trivia | 0 | - | 4.33 | 15,156 |
| San Francisco A-Z | 0 | - | 4.19 | 9,011 |
| Florida Multiple Choice | 0 | - | 4.29 | 9,656 |
| Chicago City Trivia | 0 | - | 4.26 | 30,316 |
| Boston Trivia | 0 | - | 4.37 | 23,369 |
| Boston Talk to English Translation Quiz | 0 | - | 4.45 | 14,027 |
| New York Pro Sport Teams | 0 | - | 4.29 | 14,883 |
| Texas Pro Sport Teams | 0 | - | 4.11 | 16,124 |
| History of Pennsylvania | 0 | - | 4.09 | 6,385 |
| History of Virginia | 0 | - | 4.33 | 10,885 |
| Washington State by Picture | 0 | - | 4.16 | 7,086 |
| Events in U.S. History | 0 | - | 4.39 | 25,859 |
| Embarrassing Chapters in US History | 0 | - | 4.15 | 31,310 |
| African-American Historical Figures | 0 | - | 4.12 | 16,322 |
| Capitals of Canadian Provinces | 0 | - | 4.86 | 72,920 |
| Most-Visited Countries by Canadians | 0 | - | 4.79 | 37,804 |
| Canadian Geography on the Map | 0 | - | 4.56 | 23,971 |
| Canada or Africa by Area | 0 | - | 4.79 | 13,079 |
| Top 10 American Countries by Coastline | 0 | - | 4.95 | 82,800 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.87 | 67,078 |
| Jamaica Country Quiz | 0 | - | 4.59 | 31,792 |
