| United States Map Quiz | 0 | - | 4.98 | 3,936,056 |
| U.S. State Border Crossings | 0 | - | 4.96 | 83,055 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 224,401 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 66,563 |
| Cities and Towns of Massachusetts | 0 | - | 4.90 | 62,458 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.84 | 55,944 |
| Total United States Immigration by Country | 0 | - | 4.90 | 98,371 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.93 | 149,716 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.94 | 189,474 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 68,182 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.97 | 343,687 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.85 | 22,579 |
| Pixelated United States Map | 0 | - | 4.90 | 83,858 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 95,524 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 80,482 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 102,227 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 97,939 |
| 10 Southernmost U.S. States | 0 | - | 4.86 | 100,911 |
| U.S. States with Short Names | 0 | - | 4.87 | 132,242 |
| U.S. States that Start with M | 0 | - | 4.91 | 152,819 |
| U.S. States By Population | 0 | - | 4.90 | 131,552 |
| U.S. States that Start with N | 0 | - | 4.95 | 157,578 |
| U.S. States with Longest Names | 0 | - | 4.84 | 36,901 |
| 10 Northernmost U.S. States | 0 | - | 4.89 | 74,833 |
| U.S. States with a Unique First Letter | 0 | - | 4.95 | 79,077 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 59,048 |
| The Only Remaining U.S. State . . . | 0 | - | 4.94 | 57,192 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 146,981 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 168,888 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.85 | 99,917 |
| Top 10 Least Obese U.S. States | 0 | - | 4.81 | 69,429 |
| Countries of North America Quiz | 0 | - | 5.00 | 898,679 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 591,538 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 91,459 |
| Countries that Beat the United States | 0 | - | 4.92 | 148,354 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 91,174 |
| U.S. States with the Most Immigrants | 0 | - | 4.86 | 74,593 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 859,790 |
| North American Capitals - Map Quiz | 0 | - | 4.89 | 48,421 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.98 | 49,641 |
| Canada Provinces and Territories | 0 | - | 4.99 | 294,358 |
| States of Mexico | 0 | - | 4.94 | 145,489 |
| Central American Countries | 0 | - | 4.98 | 141,532 |
| Caribbean Countries and Territories | 0 | - | 4.83 | 105,745 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 118,352 |
| Territories of the United States | 0 | - | 4.76 | 49,051 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 34,734 |
| Most Mentioned Enemies of the USA | 0 | - | 4.79 | 162,233 |
| Major non-NATO U.S. Allies | 0 | - | 4.43 | 33,992 |
| Embarrassing Chapters in US History | 0 | - | 4.15 | 31,687 |
| U.S. State Nicknames Quiz | 0 | - | 4.48 | 46,826 |
| U.S. National Parks Quiz | 0 | - | 4.79 | 47,819 |
| Countries with American Expatriates | 0 | - | 4.58 | 41,188 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 38,632 |
| United States Country Quiz | 0 | - | 4.44 | 91,061 |
| Busiest Air Routes from the U.S. | 0 | - | 4.47 | 73,305 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.78 | 58,198 |
| Canada or Africa by Area | 0 | - | 4.81 | 14,537 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,231,257 |
| Deadliest U.S. Wars | 0 | - | 4.83 | 160,186 |
| Old West History | 0 | - | 4.29 | 14,839 |
| The Life of Thomas Edison | 0 | - | 4.03 | 4,681 |
| Life of Benjamin Franklin | 0 | - | 4.20 | 6,258 |
| American Revolution - Multiple Choice | 0 | - | 4.32 | 18,983 |
| Countries Closest to Canada | 0 | - | 4.90 | 186,403 |
| U.S. Federal Holidays | 0 | - | 4.29 | 96,413 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.46 | 13,905 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 199,890 |
| Six Flags Over Texas | 0 | - | 4.84 | 59,460 |
| New England States | 0 | - | 4.52 | 52,600 |
| US States by Land Area | 0 | - | 4.54 | 49,007 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 36,463 |
| Add a Letter - Make a U.S. State | 0 | - | 4.75 | 77,393 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 51,759 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.78 | 37,762 |
| Save Americans by Guessing U.S. States | 0 | - | 4.55 | 154,916 |
| 10 Easternmost U.S. States | 0 | - | 4.54 | 53,413 |
| The Only U.S. State ... #1 | 0 | - | 4.55 | 83,320 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.48 | 40,960 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.47 | 94,458 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.79 | 56,764 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 61,845 |
| Top 10 Newest U.S. States | 0 | - | 4.80 | 68,693 |
| Top 10 Most Asian U.S. States | 0 | - | 4.79 | 62,280 |
| Top 10 Most Obese U.S. States | 0 | - | 4.53 | 78,793 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.51 | 65,285 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.45 | 48,955 |
| Top 10 Most White U.S. States | 0 | - | 4.53 | 56,542 |
| Top 10 Most German U.S. States | 0 | - | 4.50 | 42,648 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.44 | 37,839 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.65 | 42,586 |
| Countries that Beat Canada | 0 | - | 4.91 | 79,393 |
| History of Pennsylvania | 0 | - | 4.09 | 6,528 |
| History of Virginia | 0 | - | 4.33 | 11,015 |
| Events in U.S. History | 0 | - | 4.38 | 26,469 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.75 | 54,416 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.76 | 53,253 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.76 | 42,871 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 58,604 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 34,276 |
| Top 10 U.S. States People are Leaving | 0 | - | 4.41 | 50,491 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.54 | 31,942 |
| Georgia ... or Georgia? | 0 | - | 4.79 | 72,723 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 316,650 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 109,208 |
| South America Map Quiz | 0 | - | 5.00 | 1,438,022 |
| Belize Country Quiz | 0 | - | 4.88 | 19,097 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 17,403 |
| Top U.S. Universities | 0 | - | 4.11 | 115,412 |
| Largest United States Airlines | 0 | - | 4.38 | 52,453 |
| Third Most Common Language by U.S. State | 0 | - | 4.90 | 108,266 |
| U.S. States by Governor Quiz | 0 | - | 4.42 | 17,071 |
| U.S. Political Parties in History | 0 | - | 4.43 | 26,348 |
| U.S. Government Agencies | 0 | - | 4.42 | 17,935 |
| Florida Pro Sport Teams | 0 | - | 4.66 | 10,559 |
| U.S. History Multiple Choice #2 | 0 | - | 4.36 | 24,134 |
| U.S. History Multiple Choice #1 | 0 | - | 4.29 | 21,377 |
| U.S. History Multiple Choice #3 | 0 | - | 4.40 | 23,614 |
| Valid Answer - U.S. History | 0 | - | 4.19 | 21,555 |
| U.S. History Multiple Choice #4 | 0 | - | 4.25 | 24,344 |
| Canada Immigration by Country | 0 | - | 4.51 | 58,034 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.92 | 51,977 |
| The Only American Country ... | 0 | - | 4.94 | 111,669 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 102,400 |
| Dominica Country Quiz | 0 | - | 4.83 | 18,106 |
| North America Capitals Quiz | 0 | - | 4.99 | 190,823 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.11 | 26,183 |
| American Islands | 0 | - | 4.17 | 15,829 |
| American Foods | 0 | - | 3.73 | 38,314 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 5,740 |
| American Legal Vocabulary | 0 | - | 4.40 | 32,410 |
| U.S. Cities by Picture #1 | 0 | - | 4.37 | 32,163 |
| Cities by Picture #2 | 0 | - | 4.22 | 32,794 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.19 | 13,797 |
| U.S. Groups of Four Quiz | 0 | - | 4.37 | 23,598 |
| U.S. Groups of Three Quiz | 0 | - | 4.05 | 19,721 |
| American Geography Quiz for Dummies | 0 | - | 4.34 | 53,584 |
| The U.S. Government - How Does it Work? | 0 | - | 4.32 | 40,209 |
| U.S. Presidents by Picture | 0 | - | 4.85 | 398,988 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 357,387 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.40 | 56,321 |
| New York City Geography | 0 | - | 4.40 | 23,536 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.34 | 71,431 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.49 | 20,661 |
| Flyover States | 0 | - | 4.51 | 28,207 |
| U.S. States With Double Letters | 0 | - | 4.63 | 21,372 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.30 | 58,445 |
| U.S. States by Borders | 0 | - | 4.56 | 26,656 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.38 | 121,710 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.46 | 27,997 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.72 | 30,335 |
| U.S. States with Oldest Median Age | 0 | - | 4.35 | 32,015 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.30 | 41,510 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.34 | 63,672 |
| US States with the Most Executions | 0 | - | 4.51 | 25,763 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.60 | 27,284 |
| Top 10 Least White U.S. States | 0 | - | 4.19 | 36,919 |
| Top 10 Least Happy U.S. States | 0 | - | 4.55 | 22,572 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 135,989 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 64,640 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.94 | 51,279 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 60,422 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 47,658 |
| Mexico States Map Quiz | 0 | - | 4.80 | 92,250 |
| Name a Valid U.S. President #1 | 0 | - | 4.93 | 170,373 |
| Play-Doh Presidents | 0 | - | 5.00 | 76,194 |
| US States Quiz | 0 | - | 5.00 | 15,019,710 |
| U.S. States with the Lowest HDI | 0 | - | 4.46 | 27,695 |
| Which U.S. State - Multiple Choice | 0 | - | 4.45 | 19,180 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 40,450 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.49 | 43,678 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.60 | 31,319 |
| Canada Country Quiz | 0 | - | 4.54 | 122,988 |
| Canada Cities Map Quiz | 0 | - | 4.57 | 110,460 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 95,579 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 102,564 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 95,405 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 83,132 |
| American Countries With No Atlantic Coastline | 0 | - | 4.90 | 74,086 |
| History of Mexico | 0 | - | 4.57 | 14,093 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 96,015 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.91 | 42,312 |
| Brazil States Map Quiz | 0 | - | 4.84 | 40,930 |
| States of Brazil | 0 | - | 4.97 | 71,326 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 18,540 |
| U.S. States by Picture #1 | 0 | - | 4.17 | 14,490 |
| Most-Visited U.S. Cities | 0 | - | 4.87 | 75,480 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 64,741 |
| Senators Who Ran For President | 0 | - | 4.28 | 16,401 |
| U.S. Electoral College Landslides | 0 | - | 4.34 | 21,136 |
| California Multiple Choice | 0 | - | 4.40 | 27,081 |
| Geography of California | 0 | - | 4.23 | 9,783 |
| California Pro Sport Teams | 0 | - | 4.22 | 22,191 |
| San Francisco Trivia | 0 | - | 4.34 | 15,268 |
| San Francisco A-Z | 0 | - | 4.20 | 9,097 |
| Florida Multiple Choice | 0 | - | 4.30 | 9,792 |
| Chicago City Trivia | 0 | - | 4.26 | 30,533 |
| Boston Trivia | 0 | - | 4.37 | 23,525 |
| Boston Talk to English Translation Quiz | 0 | - | 4.46 | 14,317 |
| New York Pro Sport Teams | 0 | - | 4.30 | 24,790 |
