| United States Map Quiz | 0 | - | 4.98 | 4,163,304 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,804 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,599 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,730 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,598 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,376 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,025 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,687 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,273 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,943 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,403 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,657 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,437 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,709 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,025,596 |
| Canada Provinces and Territories | 0 | - | 5.00 | 343,570 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 641,581 |
| North America Map Quiz | 0 | - | 4.98 | 249,343 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,295 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,721 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,897 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,165 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,827 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,384 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 220,749 |
| Most Common High School Mascots | 0 | - | 4.47 | 32,182 |
| Central American Countries | 0 | - | 4.98 | 156,756 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 112,947 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 149,012 |
| Territories of the United States | 0 | - | 4.80 | 52,462 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,737 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,669 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,285 |
| Name a Valid Answer - United States #1 | 0 | - | 4.63 | 94,126 |
| New York City Geography | 0 | - | 4.42 | 33,125 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,600 |
| Pixelated United States Map | 0 | - | 4.88 | 94,442 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,517 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,359 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,736 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,668 |
| 75 Americans Named John | 0 | - | 4.41 | 23,927 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,074 |
| New York True or False? | 0 | - | 4.53 | 33,856 |
| The Most Recent... United States | 0 | - | 4.46 | 18,490 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,741 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,102 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,748 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,284 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,421 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,748 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,059 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,002 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,470 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,723 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,065 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,968 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,511 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,176 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,195 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,579 |
| Flags of Africa Quiz | 0 | - | 5.00 | 473,027 |
| Flags of North and South America | 0 | - | 4.99 | 374,213 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,703 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,387 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,086 |
| South America Map Quiz | 0 | - | 5.00 | 1,551,596 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,132 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,704 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,248,214 |
| Flags of Asia Quiz | 0 | - | 4.99 | 615,717 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,048 |
| Flags of Oceania | 0 | - | 5.00 | 260,427 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,543 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,149 |
| Which Island in the United States? | 0 | - | 4.29 | 29,596 |
| American Foods | 0 | - | 3.66 | 39,401 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,133 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,285 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,776 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,363 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,920 |
| U.S. Analogies | 0 | - | 4.27 | 19,690 |
| U.S. Groups of Five | 0 | - | 4.21 | 21,613 |
| Branches of the U.S. Military | 0 | - | 4.39 | 24,410 |
| Florida True or False? | 0 | - | 4.48 | 28,710 |
| Old West History | 0 | - | 4.34 | 15,285 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,527 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,950 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,748 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,732 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,616 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,444 |
| US States with the Most Executions | 0 | - | 4.51 | 26,405 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,099 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,082 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,177 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,746 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,830 |
| Name a Valid Answer - United States #2 | 0 | - | 4.16 | 27,382 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,675 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,971 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,381 |
| US States Quiz | 0 | - | 5.00 | 16,914,672 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,775 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,680 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,261 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,566 |
| History of Mexico | 0 | - | 4.58 | 15,334 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,084 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,100 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,853 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,813 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,776 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 333,036 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,389 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,934 |
| California Multiple Choice | 0 | - | 4.40 | 28,122 |
| San Francisco Trivia | 0 | - | 4.32 | 15,711 |
| San Francisco A-Z | 0 | - | 4.18 | 9,580 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,187 |
| Boston City Trivia | 0 | - | 4.38 | 24,177 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,381 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,359 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,811 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,294 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,761 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,923 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,977 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,792 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,707,474 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,051 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 25,088 |
| U.S. History Multiple Choice #1 | 0 | - | 4.31 | 22,260 |
| U.S. History Multiple Choice #4 | 0 | - | 4.24 | 25,614 |
| U.S. History True or False #1 | 0 | - | 4.36 | 31,234 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,118 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,691 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 113,655 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,314 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,616 |
| U.S. States By Population | 0 | - | 4.92 | 153,727 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,688 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,587 |
| US States with an Empty Map | 0 | - | 5.00 | 625,903 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,491 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,327 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,780 |
| Top 10 Most Religious U.S. States | 0 | - | 4.32 | 19,376 |
| U.S. States with the Least Gun Ownership | 0 | - | 4.35 | 25,489 |
| Top 10 US States that Produce the Most Coal | 0 | - | 4.30 | 30,903 |
| U.S. States with Youngest Median Age | 0 | - | 4.32 | 20,613 |
| Top 10 U.S. States by Percent Born in State | 0 | - | 4.25 | 12,355 |
| Top 10 U.S. States by Percent Born out of State | 0 | - | 4.22 | 11,861 |
| U.S. States with the Most Workplace Fatalities | 0 | - | 4.09 | 9,578 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,241 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,569 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,507 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,573 |
| Random African Flag to Country | 0 | - | 4.88 | 75,207 |
| USA Tourist Attractions by Description #2 | 0 | - | 4.00 | 21,336 |
| American Inventions #1 | 0 | - | 3.63 | 31,512 |
| American Inventions #2 | 0 | - | 3.93 | 15,872 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,231 |
| Rivers of the United States | 0 | - | 4.93 | 66,319 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,611 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,180 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,669 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,798 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,558 |
| University of California Campuses | 0 | - | 3.84 | 8,924 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,242 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 507,787 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,829 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,428 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,654 |
| Most Common Immigrant Origin by U.S. State | 0 | - | 4.90 | 67,104 |
| Draw All US State Borders | 0 | - | 4.99 | 138,512 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,274 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,911 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,320 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,926 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,600 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,990 |
| Draw All US State Borders - Extreme | 0 | - | 4.99 | 78,745 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,211 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.02 | 28,715 |
| Canada Decoder | 0 | - | 4.07 | 18,734 |
| Which Canadian Province? | 0 | - | 4.75 | 9,747 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,354 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,482 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,503 |
| Random European Flag to Country | 0 | - | 4.89 | 182,930 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,664 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,713 |
| Famous Caribbean People | 0 | - | 4.37 | 12,633 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,077 |
| North America Cities by Map | 0 | - | 4.41 | 47,840 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,613 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,465 |
