| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,552 |
| United States Map Quiz | 0 | - | 4.98 | 4,167,105 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,911 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,745 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,780 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,728 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,157 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,392 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,926 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,484 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,061 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,551 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,745 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,540 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,874 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,028,467 |
| Canada Provinces and Territories | 0 | - | 5.00 | 344,965 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 642,936 |
| North America Map Quiz | 0 | - | 4.98 | 250,504 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,439 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,904 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 904,106 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,487 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,999 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,627 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,574 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 221,668 |
| Most Common High School Mascots | 0 | - | 4.47 | 32,246 |
| Central American Countries | 0 | - | 4.98 | 157,063 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,118 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 149,722 |
| Territories of the United States | 0 | - | 4.80 | 52,541 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,811 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,921 |
| Name a Valid Answer - United States #1 | 0 | - | 4.62 | 94,262 |
| New York City Geography | 0 | - | 4.43 | 33,161 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,666 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,137 |
| Branches of the U.S. Military | 0 | - | 4.40 | 24,459 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,408 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,747 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,698 |
| 75 Americans Named John | 0 | - | 4.41 | 23,951 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,123 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,843 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,165 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,789 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,369 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,461 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,805 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,225 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,153 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,528 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,911 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,182 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 47,036 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,642 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,222 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,236 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,646 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,842 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,608 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,362 |
| South America Map Quiz | 0 | - | 5.00 | 1,553,794 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,170 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,798 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,857 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,396 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,173 |
| Which Island in the United States? | 0 | - | 4.29 | 29,685 |
| American Foods | 0 | - | 3.66 | 39,424 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,313 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.27 | 14,800 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,400 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,953 |
| U.S. Analogies | 0 | - | 4.27 | 19,710 |
| Florida True or False? | 0 | - | 4.48 | 28,745 |
| Old West History | 0 | - | 4.34 | 15,292 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,529 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,970 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,765 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,759 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,666 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,488 |
| US States with the Most Executions | 0 | - | 4.51 | 26,417 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,129 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,183 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,210 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,780 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,863 |
| Name a Valid Answer - United States #2 | 0 | - | 4.16 | 27,416 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,492 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 88,117 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,658 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,851 |
| US States Quiz | 0 | - | 5.00 | 16,956,040 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,172 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,714 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,675 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,808 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 53,241 |
| History of Mexico | 0 | - | 4.58 | 15,351 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,291 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,310 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 748,880 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,117 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,225 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,660 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 334,305 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,420 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,022 |
| California Multiple Choice | 0 | - | 4.40 | 28,154 |
| San Francisco Trivia | 0 | - | 4.32 | 15,719 |
| San Francisco A-Z | 0 | - | 4.18 | 9,583 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,195 |
| Boston City Trivia | 0 | - | 4.38 | 24,188 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,568 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,396 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,330 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,807 |
| Pixelated United States Map | 0 | - | 4.88 | 94,633 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,228 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,211 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,816 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,717,379 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,532 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 25,109 |
| U.S. History Multiple Choice #1 | 0 | - | 4.29 | 22,277 |
| U.S. History Multiple Choice #4 | 0 | - | 4.24 | 25,646 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,748 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,953 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 113,971 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,607 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,969 |
| U.S. States By Population | 0 | - | 4.92 | 153,924 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,956 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,733 |
| US States with an Empty Map | 0 | - | 5.00 | 627,269 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,689 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,431 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,938 |
| Top 10 Most Religious U.S. States | 0 | - | 4.32 | 19,403 |
| U.S. States with the Least Gun Ownership | 0 | - | 4.35 | 25,512 |
| Top 10 US States that Produce the Most Coal | 0 | - | 4.30 | 31,132 |
| U.S. States with Youngest Median Age | 0 | - | 4.32 | 20,621 |
| Top 10 U.S. States by Percent Born in State | 0 | - | 4.25 | 12,373 |
| Top 10 U.S. States by Percent Born out of State | 0 | - | 4.22 | 11,872 |
| U.S. States with the Most Workplace Fatalities | 0 | - | 4.09 | 9,585 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,263 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,583 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,696 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,576 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,401 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,431 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,394 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 50,122 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 54,299 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,555 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,438 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,596 |
| U.S. Geography by Letter - R | 0 | - | 4.22 | 36,680 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,493 |
| USA Tourist Attractions by Description #2 | 0 | - | 4.00 | 21,351 |
| American Inventions #1 | 0 | - | 3.62 | 31,524 |
| American Inventions #2 | 0 | - | 3.93 | 15,880 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,318 |
| Rivers of the United States | 0 | - | 4.93 | 66,515 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,985 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,938 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,271 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,868 |
| University of California Campuses | 0 | - | 3.84 | 8,935 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,441 |
| People on Money - United States | 0 | - | 4.31 | 63,398 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 508,924 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,074 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,931 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,909 |
| Draw All US State Borders | 0 | - | 4.99 | 139,650 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,653 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,274 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,609 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,250 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,889 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,123 |
| Famous Canadians Quiz | 0 | - | 3.94 | 23,420 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,229 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.05 | 28,799 |
| Canada Decoder | 0 | - | 4.07 | 18,752 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,725 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,845 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,768 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 42,820 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,230 |
| Africa A-Z | 0 | - | 4.57 | 46,732 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,987 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,737 |
| Famous Caribbean People | 0 | - | 4.37 | 12,648 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,111 |
| North America Cities by Map | 0 | - | 4.41 | 47,893 |
