| United States Map Quiz | 0 | - | 4.98 | 4,150,005 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,923 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,271 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,956 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,239 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,552 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,738 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,637 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,153 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 242,627 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,731 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 65,966 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,287 |
| Pixelated United States Map | 0 | - | 4.89 | 93,905 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 109,128 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,360 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,467 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,009 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,022 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,508 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,729 |
| U.S. States By Population | 0 | - | 4.92 | 152,866 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,009 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,225 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,266 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,028 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,030 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 65,356 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,637 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,429 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,933 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,362 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,028 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,266 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,018,483 |
| Canada Provinces and Territories | 0 | - | 5.00 | 340,363 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 638,338 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,298 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,478 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,252 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,235 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,802 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,111 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,515 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,610 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,264 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,964 |
| States of Mexico | 0 | - | 4.95 | 175,063 |
| Mexico States Map Quiz | 0 | - | 4.85 | 104,288 |
| Central American Countries | 0 | - | 4.98 | 155,658 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 147,220 |
| Territories of the United States | 0 | - | 4.79 | 52,285 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,521 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,090 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,000 |
| New York City Geography | 0 | - | 4.42 | 33,035 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,418 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,533 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,146 |
| United States Country Quiz | 0 | - | 4.43 | 101,158 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,782 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,831 |
| American Foods | 0 | - | 3.66 | 39,336 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,213 |
| Countries Closest to Canada | 0 | - | 4.91 | 197,847 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,388 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,683 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 208,593 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,778 |
| New England States | 0 | - | 4.51 | 59,764 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,687 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,961 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,608 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 55,867 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,818 |
| U.S. States by Borders | 0 | - | 4.61 | 35,224 |
| Save Americans by Guessing U.S. States | 0 | - | 4.63 | 184,424 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,385 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,877 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,107 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,502 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.72 | 32,927 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,533 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,060 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,303 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,584 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,656 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,639 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,308 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,263 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,829 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,578 |
| Countries that Beat Canada | 0 | - | 4.90 | 87,181 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,792 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,387 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,178 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,398 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,126 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 45,056 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,838 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,096 |
| Top 10 U.S. States People are Leaving | 0 | - | 4.42 | 59,269 |
| Top 10 U.S. States People are Moving To | 0 | - | 4.73 | 63,734 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,444 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,715 |
| African-American Historical Figures | 0 | - | 4.18 | 17,161 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,618 |
| Flags of North and South America | 0 | - | 4.99 | 370,883 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,025 |
| South America Map Quiz | 0 | - | 5.00 | 1,545,661 |
| Belize Country Quiz | 0 | - | 4.85 | 20,903 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,149 |
| Top U.S. Universities | 0 | - | 4.15 | 144,635 |
| Largest United States Airlines | 0 | - | 4.39 | 54,947 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,588 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,762 |
| U.S. States by Governor | 0 | - | 4.43 | 18,026 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,634 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,622 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,804 |
| Boston Talk to English Translation Quiz | 0 | - | 4.59 | 55,859 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,059 |
| Valid Answer - U.S. History | 0 | - | 4.24 | 22,501 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,445 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,336 |
| German Groups of Things | 0 | - | 4.46 | 38,401 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 199,185 |
| Top Five Countries By Category #3 | 0 | - | 4.81 | 170,455 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,227 |
| The Only American Country ... | 0 | - | 4.92 | 121,258 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,767 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,558 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,089 |
| Which Island in the United States? | 0 | - | 4.29 | 29,359 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,123 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,195 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,855 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,463 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,039 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,705 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,294 |
| Old West History | 0 | - | 4.33 | 15,247 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,512 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,898 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,695 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,737 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,499 |
| Flyover States | 0 | - | 4.52 | 29,460 |
| U.S. States With Double Letters | 0 | - | 4.54 | 24,034 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 76,018 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,192 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.44 | 29,650 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,490 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,290 |
| US States with the Most Executions | 0 | - | 4.51 | 26,377 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,002 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,848 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,087 |
| Canada Decoder | 0 | - | 4.12 | 18,690 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,470 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,125 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,793 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 78,475 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 320,960 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,596 |
| US States Quiz | 0 | - | 5.00 | 16,799,034 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,529 |
| U.S. States with the Lowest HDI | 0 | - | 4.47 | 28,819 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,256 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,621 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,436 |
| Canada Country Quiz | 0 | - | 4.54 | 132,179 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,956 |
| Canada A-Z | 0 | - | 4.73 | 32,740 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,895 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,551 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,204 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,686 |
| History of Mexico | 0 | - | 4.58 | 15,278 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,641 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,468 |
| Word Chain - South America | 0 | - | 4.51 | 23,851 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,731 |
| States of Brazil | 0 | - | 4.97 | 87,300 |
| Famous Caribbean People | 0 | - | 4.37 | 12,596 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 745,582 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,399 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 330,280 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,195 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,352 |
| Senators Who Ran For President | 0 | - | 4.24 | 17,021 |
| U.S. Electoral College Landslides | 0 | - | 4.35 | 22,022 |
| California Multiple Choice | 0 | - | 4.40 | 28,072 |
| Geography of California | 0 | - | 4.26 | 10,536 |
| California Pro Sport Teams | 0 | - | 4.19 | 22,672 |
| San Francisco Trivia | 0 | - | 4.32 | 15,686 |
| San Francisco A-Z | 0 | - | 4.18 | 9,550 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,176 |
| Chicago City Trivia | 0 | - | 4.31 | 31,422 |
| Boston City Trivia | 0 | - | 4.38 | 24,157 |
