| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,207 |
| United States Map Quiz | 0 | - | 4.98 | 4,140,092 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,490 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,876 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,785 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 72,988 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,444 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,019 |
| Name the U.S. National Parks | 0 | - | 4.85 | 58,333 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,556 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,056 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,069 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,558 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,108 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,054 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,694 |
| Pixelated United States Map | 0 | - | 4.89 | 93,374 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,331 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,749 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,614 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,256 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,304 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,525 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,797 |
| U.S. States By Population | 0 | - | 4.92 | 152,286 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,292 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,794 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,849 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,465 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,723 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,796 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,793 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,043 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,412 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,037 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,623 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,765 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,695 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,425 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,482 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,414 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,005 |
| U.S. States with the Most Immigrants | 0 | - | 4.84 | 81,886 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,772 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,542 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,881 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 62,816 |
| States of Mexico | 0 | - | 4.95 | 173,106 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,699 |
| Central American Countries | 0 | - | 4.98 | 154,937 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 145,649 |
| Top U.S. Universities | 0 | - | 4.15 | 143,952 |
| Territories of the United States | 0 | - | 4.79 | 52,109 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,357 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,459 |
| U.S. States by Governor | 0 | - | 4.43 | 17,976 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,563 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,533 |
| New York City Geography | 0 | - | 4.42 | 32,888 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,237 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,461 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,068 |
| United States Country Quiz | 0 | - | 4.43 | 100,491 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,581 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,612 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,779 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,145 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,152 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,268 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,074 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,750 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,627 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 207,716 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,671 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,567 |
| New England States | 0 | - | 4.51 | 59,699 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,436 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,876 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,271 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,600 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,642 |
| U.S. States by Borders | 0 | - | 4.63 | 35,050 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 182,316 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,215 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,096 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 43,969 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,275 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 32,756 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,396 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 74,842 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,191 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,386 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 89,902 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,272 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,127 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 81,801 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,528 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,803 |
| Senators Who Ran For President | 0 | - | 4.23 | 16,987 |
| U.S. Electoral College Landslides | 0 | - | 4.35 | 21,965 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,260 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,014 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 44,946 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,796 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,571 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,756 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,008 |
| Top 10 U.S. States People are Leaving | 0 | - | 4.42 | 58,983 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,382 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,656 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,517 |
| Georgia ... or Georgia? | 0 | - | 4.69 | 76,373 |
| Flags of North and South America | 0 | - | 4.99 | 365,986 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 127,977 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,503 |
| Belize Country Quiz | 0 | - | 4.85 | 20,784 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,033 |
| Largest United States Airlines | 0 | - | 4.39 | 54,819 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,349 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,336 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,744 |
| Boston Talk to English Translation Quiz | 0 | - | 4.59 | 55,661 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 32,981 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,178 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,560 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 121,899 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,659 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,043 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,537 |
| The Only American Country ... | 0 | - | 4.92 | 120,676 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,277 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,650 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,596 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,029 |
| Which Island in the United States? | 0 | - | 4.29 | 29,132 |
| American Foods | 0 | - | 3.66 | 39,269 |
| U.S. Cities by Picture #1 | 0 | - | 4.37 | 34,330 |
| Cities by Picture #2 | 0 | - | 4.19 | 34,919 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,658 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,174 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,790 |
| Old West History | 0 | - | 4.32 | 15,218 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,486 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,841 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,635 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,577 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,455 |
| Flyover States | 0 | - | 4.52 | 29,377 |
| U.S. States With Double Letters | 0 | - | 4.54 | 23,892 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 75,768 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 127,968 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.44 | 29,568 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,344 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,135 |
| US States with the Most Executions | 0 | - | 4.51 | 26,347 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 28,907 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,578 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.40 | 40,056 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,013 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,274 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,130 |
| Monarchies of Europe | 0 | - | 4.90 | 97,232 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,138 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,670 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,935 |
| Monarchies of Asia | 0 | - | 4.97 | 70,546 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,393 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 193,782 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,051 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,379 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,478 |
| Richest Island Countries | 0 | - | 4.84 | 99,417 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,564 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,659 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 261,804 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 102,840 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,625 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,281 |
| US States Quiz | 0 | - | 5.00 | 16,683,682 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,481 |
| U.S. States with the Lowest HDI | 0 | - | 4.46 | 28,757 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,190 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,563 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,296 |
| Canada Country Quiz | 0 | - | 4.54 | 131,648 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,565 |
| Canada A-Z | 0 | - | 4.73 | 32,631 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,309 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,001 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,846 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 68,509 |
| U.S. Geography by Letter - S | 0 | - | 4.54 | 52,056 |
| History of Mexico | 0 | - | 4.58 | 15,222 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,066 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,814 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,346 |
| States of Brazil | 0 | - | 4.98 | 86,243 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,153 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 742,842 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,352 |
