| United States Map Quiz | 0 | - | 4.98 | 4,150,471 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,597 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,288 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,997 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,258 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,593 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,749 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,287 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,667 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,449 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,963 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,376 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,046 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,290 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,018,840 |
| North America Map Quiz | 0 | - | 4.98 | 247,128 |
| Canada Provinces and Territories | 0 | - | 5.00 | 340,536 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 638,471 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,963 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,257 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,181 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 218,655 |
| Most Common High School Mascots | 0 | - | 4.47 | 32,016 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,557 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,454 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,654 |
| Central American Countries | 0 | - | 4.98 | 155,716 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 147,294 |
| Territories of the United States | 0 | - | 4.79 | 52,293 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,535 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,119 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,014 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,775 |
| New York City Geography | 0 | - | 4.42 | 33,039 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,392 |
| Pixelated United States Map | 0 | - | 4.89 | 93,945 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,393 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,226 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,687 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,585 |
| 75 Americans Named John | 0 | - | 4.41 | 23,876 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,930 |
| New York True or False? | 0 | - | 4.53 | 33,765 |
| The Most Recent... United States | 0 | - | 4.45 | 18,388 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,518 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.72 | 32,935 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,541 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,075 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,313 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,591 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,685 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,656 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,318 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,289 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,840 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,648 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,199 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,470 |
| Flags of Africa Quiz | 0 | - | 5.00 | 467,945 |
| Flags of North and South America | 0 | - | 4.99 | 371,059 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,463 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,677 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,079 |
| South America Map Quiz | 0 | - | 5.00 | 1,545,947 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,066 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 45,062 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,105 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,237,313 |
| Flags of Asia Quiz | 0 | - | 4.99 | 610,174 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,456 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,528 |
| Flags of Oceania | 0 | - | 5.00 | 257,535 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,619 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,651 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,090 |
| Which Island in the United States? | 0 | - | 4.29 | 29,369 |
| American Foods | 0 | - | 3.66 | 39,341 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,123 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,203 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,709 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,273 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,853 |
| U.S. Analogies | 0 | - | 4.27 | 19,649 |
| U.S. Groups of Five | 0 | - | 4.21 | 21,515 |
| Branches of the U.S. Military | 0 | - | 4.39 | 24,289 |
| Florida True or False? | 0 | - | 4.48 | 28,625 |
| Old West History | 0 | - | 4.33 | 15,249 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,513 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,901 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,696 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.44 | 29,657 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,494 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,299 |
| US States with the Most Executions | 0 | - | 4.51 | 26,379 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,011 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,858 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,089 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,661 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,749 |
| Name a Valid Answer - United States #2 | 0 | - | 4.16 | 27,265 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,702 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,359 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,900 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,240 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,678 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,671 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,191 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,981 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 242,725 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,296 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,740 |
| California Multiple Choice | 0 | - | 4.40 | 28,075 |
| San Francisco Trivia | 0 | - | 4.32 | 15,686 |
| San Francisco A-Z | 0 | - | 4.18 | 9,551 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,177 |
| Boston City Trivia | 0 | - | 4.38 | 24,157 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 65,985 |
| US States Quiz | 0 | - | 5.00 | 16,804,975 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,354 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,622 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,135 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,170 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,038 |
| History of Mexico | 0 | - | 4.58 | 15,283 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 330,434 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,271 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,213 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,670 |
| USA Tourist Attractions by Description #2 | 0 | - | 4.00 | 21,302 |
| American Inventions #1 | 0 | - | 3.63 | 31,492 |
| American Inventions #2 | 0 | - | 3.93 | 15,853 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 109,169 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,388 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,741 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,681,365 |
| University of California Campuses | 0 | - | 3.84 | 8,899 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,277 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 25,037 |
| U.S. History Multiple Choice #1 | 0 | - | 4.31 | 22,214 |
| U.S. History Multiple Choice #4 | 0 | - | 4.26 | 25,549 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,507 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,036 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,052 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,547 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,776 |
| U.S. States By Population | 0 | - | 4.92 | 152,896 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,040 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,243 |
| US States with an Empty Map | 0 | - | 5.00 | 622,154 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,049 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,046 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 65,370 |
| Top 10 Most Religious U.S. States | 0 | - | 4.31 | 19,308 |
| U.S. States with the Least Gun Ownership | 0 | - | 4.35 | 25,427 |
| Top 10 US States that Produce the Most Coal | 0 | - | 4.27 | 25,406 |
| U.S. States with Youngest Median Age | 0 | - | 4.32 | 20,584 |
| Top 10 U.S. States by Percent Born in State | 0 | - | 4.25 | 12,311 |
| Top 10 U.S. States by Percent Born out of State | 0 | - | 4.22 | 11,820 |
| U.S. States with the Most Workplace Fatalities | 0 | - | 4.09 | 9,559 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,167 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,534 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,629 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,040 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,470 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,047 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,001 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,345 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 504,744 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,243 |
| Draw All US State Borders | 0 | - | 4.99 | 135,893 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,503 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,270 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,164 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.02 | 28,437 |
| Canada Decoder | 0 | - | 4.12 | 18,690 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,541 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,702 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,541 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,416 |
| Random African Flag to Country | 0 | - | 4.88 | 74,584 |
| Australian Capitals | 0 | - | 4.92 | 62,677 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,653 |
| Famous Caribbean People | 0 | - | 4.37 | 12,597 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,000 |
| North America Cities by Map | 0 | - | 4.41 | 47,732 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,539 |
| Rivers of the United States | 0 | - | 4.93 | 65,969 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,405 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,887 |
| U.S. Highway Signs By State | 0 | - | 4.46 | 15,451 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,974 |
| Hawaiian Islands | 0 | - | 4.83 | 42,605 |
| Countries Closest to Maine | 0 | - | 4.85 | 66,876 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,240 |
| Washington State by Picture | 0 | - | 4.26 | 7,708 |
| U.S. State Flags | 0 | - | 4.89 | 169,279 |
| U.S. States that Border Canada | 0 | - | 4.91 | 184,017 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,154 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,119 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,356 |
