| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,269 |
| United States Map Quiz | 0 | - | 4.98 | 4,155,139 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,676 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,395 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,376 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,826 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,856 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,120 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,427 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,836 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,619 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,104 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,447 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,148 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,431 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,021,401 |
| Canada Provinces and Territories | 0 | - | 5.00 | 341,771 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,531 |
| North America Map Quiz | 0 | - | 4.98 | 248,022 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,072 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,436 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,739 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,795 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,585 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,946 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,439 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 219,455 |
| Most Common High School Mascots | 0 | - | 4.47 | 32,068 |
| Central American Countries | 0 | - | 4.98 | 156,178 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 148,086 |
| Territories of the United States | 0 | - | 4.79 | 52,350 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,609 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,329 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,896 |
| New York City Geography | 0 | - | 4.42 | 33,072 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,498 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,128 |
| Branches of the U.S. Military | 0 | - | 4.39 | 24,343 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,278 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,700 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,614 |
| 75 Americans Named John | 0 | - | 4.41 | 23,896 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,977 |
| New York True or False? | 0 | - | 4.53 | 33,801 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,603 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.72 | 33,002 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,626 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,141 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,349 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,639 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,805 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,770 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,377 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,447 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,926 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,861 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,315 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,105 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,146 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,512 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,548 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,138 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,511 |
| South America Map Quiz | 0 | - | 5.00 | 1,548,287 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,098 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,539 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,296 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,336 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,107 |
| Which Island in the United States? | 0 | - | 4.29 | 29,458 |
| American Foods | 0 | - | 3.66 | 39,365 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,238 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,735 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,313 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,879 |
| U.S. Analogies | 0 | - | 4.27 | 19,661 |
| Florida True or False? | 0 | - | 4.48 | 28,659 |
| Old West History | 0 | - | 4.33 | 15,261 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,517 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,919 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,714 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,671 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,536 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,362 |
| US States with the Most Executions | 0 | - | 4.51 | 26,387 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,046 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,948 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,129 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,686 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,775 |
| Name a Valid Answer - United States #2 | 0 | - | 4.16 | 27,313 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,082 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,804 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,430 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,741 |
| US States Quiz | 0 | - | 5.00 | 16,846,124 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,736 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,649 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,374 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,344 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,823 |
| History of Mexico | 0 | - | 4.58 | 15,297 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,826 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,842 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 746,547 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,390 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,285 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,463 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 331,374 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,332 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,832 |
| California Multiple Choice | 0 | - | 4.40 | 28,094 |
| San Francisco Trivia | 0 | - | 4.32 | 15,694 |
| San Francisco A-Z | 0 | - | 4.18 | 9,563 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,181 |
| Boston City Trivia | 0 | - | 4.38 | 24,164 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,143 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,305 |
| Countries by Wikipedia Descriptions #1 | 0 | - | 4.93 | 65,296 |
| Countries by Wikipedia Descriptions #4 | 0 | - | 4.87 | 56,909 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,216 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,705 |
| Pixelated United States Map | 0 | - | 4.87 | 94,135 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 109,445 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,581 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,767 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,691,500 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,613 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 25,057 |
| U.S. History Multiple Choice #1 | 0 | - | 4.31 | 22,232 |
| U.S. History Multiple Choice #4 | 0 | - | 4.26 | 25,576 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,711 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,246 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,267 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,792 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,064 |
| U.S. States By Population | 0 | - | 4.92 | 153,341 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,280 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,363 |
| US States with an Empty Map | 0 | - | 5.00 | 623,711 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,188 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,138 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,516 |
| Top 10 Most Religious U.S. States | 0 | - | 4.31 | 19,332 |
| U.S. States with the Least Gun Ownership | 0 | - | 4.35 | 25,446 |
| Top 10 US States that Produce the Most Coal | 0 | - | 4.27 | 25,554 |
| U.S. States with Youngest Median Age | 0 | - | 4.32 | 20,595 |
| Top 10 U.S. States by Percent Born in State | 0 | - | 4.25 | 12,330 |
| Top 10 U.S. States by Percent Born out of State | 0 | - | 4.22 | 11,835 |
| U.S. States with the Most Workplace Fatalities | 0 | - | 4.09 | 9,567 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,200 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,542 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,571 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,082 |
| Africa A-Z | 0 | - | 4.57 | 46,582 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,991 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,027 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,022 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,018 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 49,705 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 53,540 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,289 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,072 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,244 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,059 |
| USA Tourist Attractions by Description #2 | 0 | - | 4.00 | 21,312 |
| American Inventions #1 | 0 | - | 3.63 | 31,499 |
| American Inventions #2 | 0 | - | 3.93 | 15,860 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,125 |
| Rivers of the United States | 0 | - | 4.93 | 66,099 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,896 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,211 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,660 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,180 |
| University of California Campuses | 0 | - | 3.84 | 8,906 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,016 |
| People on Money - United States | 0 | - | 4.31 | 63,328 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 505,854 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,456 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,587 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,302 |
| Draw All US State Borders | 0 | - | 4.99 | 136,946 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,550 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,479 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,869 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,648 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,372 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,852 |
| Famous Canadians Quiz | 0 | - | 3.94 | 23,408 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,179 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.02 | 28,558 |
| Canada Decoder | 0 | - | 4.12 | 18,711 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,840 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,995 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,589 |
| Asian Cities A-Z by Clue | 0 | - | 4.49 | 35,477 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,825 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,681 |
| Famous Caribbean People | 0 | - | 4.37 | 12,609 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,018 |
