| United States Map Quiz | 0 | - | 4.98 | 4,147,027 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,506 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,155 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,720 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,110 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,368 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,651 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,127 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,418 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,296 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,767 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,248 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,915 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,107 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,016,143 |
| Canada Provinces and Territories | 0 | - | 5.00 | 339,481 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 637,471 |
| North America Map Quiz | 0 | - | 4.98 | 246,118 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,832 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,061 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,578 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,304 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,198 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,347 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 217,819 |
| Most Common High School Mascots | 0 | - | 4.47 | 31,931 |
| Central American Countries | 0 | - | 4.98 | 155,430 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 146,613 |
| Territories of the United States | 0 | - | 4.79 | 52,239 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,464 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,905 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,914 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,654 |
| New York City Geography | 0 | - | 4.42 | 33,007 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,315 |
| Pixelated United States Map | 0 | - | 4.89 | 93,749 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,181 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,180 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,673 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,562 |
| 75 Americans Named John | 0 | - | 4.41 | 23,855 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,879 |
| New York True or False? | 0 | - | 4.53 | 33,734 |
| The Most Recent... United States | 0 | - | 4.45 | 18,356 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,430 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 32,881 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,493 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,000 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,270 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,523 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,518 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,520 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,245 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,115 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,737 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,082 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 45,018 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,070 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,437 |
| Flags of Africa Quiz | 0 | - | 5.00 | 466,054 |
| Flags of North and South America | 0 | - | 4.99 | 369,577 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,350 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,454 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,722 |
| South America Map Quiz | 0 | - | 5.00 | 1,543,788 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,037 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,342 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,233,025 |
| Flags of Asia Quiz | 0 | - | 4.99 | 608,274 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,342 |
| Flags of Oceania | 0 | - | 5.00 | 256,592 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,950 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,077 |
| Which Island in the United States? | 0 | - | 4.29 | 29,297 |
| American Foods | 0 | - | 3.66 | 39,317 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,117 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.94 | 32,127 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,695 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,246 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,834 |
| U.S. Analogies | 0 | - | 4.27 | 19,634 |
| U.S. Groups of Five | 0 | - | 4.21 | 21,490 |
| Branches of the U.S. Military | 0 | - | 4.40 | 24,234 |
| Florida True or False? | 0 | - | 4.48 | 28,584 |
| Old West History | 0 | - | 4.33 | 15,236 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,505 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,884 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,674 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.44 | 29,620 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,441 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,243 |
| US States with the Most Executions | 0 | - | 4.51 | 26,364 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 28,972 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,755 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.42 | 44,428 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,070 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,634 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,720 |
| Name a Valid Answer - United States #2 | 0 | - | 4.16 | 27,199 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,372 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,151 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,715 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,498 |
| US States Quiz | 0 | - | 5.00 | 16,763,199 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,977 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,605 |
| Pixelated Americas Map | 0 | - | 4.39 | 46,943 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,088 |
| History of Mexico | 0 | - | 4.58 | 15,252 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,466 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,496 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,948 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,651 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 241,992 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 329,402 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,267 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,648 |
| California Multiple Choice | 0 | - | 4.40 | 28,060 |
| San Francisco Trivia | 0 | - | 4.32 | 15,677 |
| San Francisco A-Z | 0 | - | 4.18 | 9,543 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,170 |
| Boston City Trivia | 0 | - | 4.38 | 24,148 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,852 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,233 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,854 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,127 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,628 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,899 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,172 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,715 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,670,296 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,652 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 25,018 |
| U.S. History Multiple Choice #1 | 0 | - | 4.31 | 22,188 |
| U.S. History Multiple Choice #4 | 0 | - | 4.26 | 25,525 |
| U.S. History True or False #1 | 0 | - | 4.36 | 31,049 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,238 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,833 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,822 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,239 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,473 |
| U.S. States By Population | 0 | - | 4.92 | 152,717 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,803 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,112 |
| US States with an Empty Map | 0 | - | 5.00 | 620,895 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,883 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,944 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 65,194 |
| Top 10 Most Religious U.S. States | 0 | - | 4.31 | 19,278 |
| U.S. States with the Least Gun Ownership | 0 | - | 4.35 | 25,399 |
| Top 10 US States that Produce the Most Coal | 0 | - | 4.27 | 25,374 |
| U.S. States with Youngest Median Age | 0 | - | 4.32 | 20,575 |
| Top 10 U.S. States by Percent Born in State | 0 | - | 4.25 | 12,300 |
| Top 10 U.S. States by Percent Born out of State | 0 | - | 4.22 | 11,808 |
| U.S. States with the Most Workplace Fatalities | 0 | - | 4.09 | 9,546 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,128 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,514 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,390 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,218 |
| Random African Flag to Country | 0 | - | 4.88 | 74,457 |
| USA Tourist Attractions by Description #2 | 0 | - | 4.00 | 21,291 |
| American Inventions #1 | 0 | - | 3.63 | 31,478 |
| American Inventions #2 | 0 | - | 3.93 | 15,841 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,912 |
| Rivers of the United States | 0 | - | 4.93 | 65,752 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,420 |
| Cities by Picture #2 | 0 | - | 4.19 | 34,998 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,747 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,043 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,707 |
| University of California Campuses | 0 | - | 3.84 | 8,882 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,697 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 503,670 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,992 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 207,425 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,908 |
| Most Common Immigrant Origin by U.S. State | 0 | - | 4.90 | 65,443 |
| Draw All US State Borders | 0 | - | 4.99 | 134,873 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,154 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,005 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,436 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,337 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,144 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,667 |
| Draw All US State Borders - Extreme | 0 | - | 4.99 | 77,864 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,148 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.02 | 28,235 |
| Canada Decoder | 0 | - | 4.12 | 18,678 |
| Which Canadian Province? | 0 | - | 4.75 | 9,673 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,201 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,389 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 210,705 |
| Random European Flag to Country | 0 | - | 4.89 | 181,425 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,019 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,632 |
| Famous Caribbean People | 0 | - | 4.37 | 12,584 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 23,975 |
| North America Cities by Map | 0 | - | 4.41 | 47,682 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,503 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,383 |
