| United States Map Quiz | 0 | - | 4.98 | 4,168,962 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,940 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,809 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,683 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,856 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 74,867 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,207 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,985 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,563 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,122 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,600 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,784 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,596 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,930 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,029,748 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,529 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 643,617 |
| North America Map Quiz | 0 | - | 4.98 | 251,112 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,491 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,991 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 904,483 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,701 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 95,068 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,819 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 222,034 |
| 75 Americans Named John | 0 | - | 4.41 | 23,963 |
| Most Common High School Mascots | 0 | - | 4.47 | 32,279 |
| Central American Countries | 0 | - | 4.98 | 157,188 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,270 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 150,029 |
| Territories of the United States | 0 | - | 4.80 | 52,582 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,842 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,999 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,374 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,466 |
| New York City Geography | 0 | - | 4.43 | 33,173 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,358 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,585 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,902 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,527 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,090 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,701 |
| American Foods | 0 | - | 3.66 | 39,428 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,422 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,969 |
| U.S. Analogies | 0 | - | 4.27 | 19,714 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,603 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,424 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,765 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,711 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,148 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,888 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,194 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,808 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,414 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,489 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,831 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,290 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,206 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,555 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,980 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,220 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 47,058 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,681 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,258 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,243 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,250 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,661 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,901 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,688 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,504 |
| South America Map Quiz | 0 | - | 5.00 | 1,554,894 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,181 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,829 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,482 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,566 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,759 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,182 |
| Which Island in the United States? | 0 | - | 4.29 | 29,730 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,144 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,324 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.27 | 14,808 |
| Branches of the U.S. Military | 0 | - | 4.40 | 24,487 |
| Old West History | 0 | - | 4.34 | 15,294 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,530 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,977 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,769 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,777 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,691 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,510 |
| US States with the Most Executions | 0 | - | 4.51 | 26,422 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,145 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,225 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,228 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,795 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,884 |
| Canada Decoder | 0 | - | 4.07 | 18,761 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,810 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,530 |
| US States Quiz | 0 | - | 5.00 | 16,973,056 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,408 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,719 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 323,952 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,738 |
| History of Mexico | 0 | - | 4.52 | 15,358 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,366 |
| Word Chain - South America | 0 | - | 4.51 | 23,989 |
| Famous Caribbean People | 0 | - | 4.37 | 12,653 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,395 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 749,225 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,240 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,017 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 334,866 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,379 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,433 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,062 |
| California Multiple Choice | 0 | - | 4.40 | 28,164 |
| San Francisco Trivia | 0 | - | 4.32 | 15,723 |
| San Francisco A-Z | 0 | - | 4.18 | 9,584 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,200 |
| Boston City Trivia | 0 | - | 4.38 | 24,194 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,640 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,412 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,627 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,068 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,708 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,651 |
| Name a Valid African Country | 0 | - | 4.98 | 154,878 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 89,770 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,996 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,204 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,360 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,826 |
| Pixelated United States Map | 0 | - | 4.88 | 94,720 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,376 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,327 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,829 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,721,056 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,630 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 25,113 |
| U.S. History Multiple Choice #1 | 0 | - | 4.29 | 22,278 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,356 |
| U.S. History Multiple Choice #4 | 0 | - | 4.24 | 25,654 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,912 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,136 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,140 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,195 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,172 |
| U.S. States By Population | 0 | - | 4.92 | 154,046 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,090 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,809 |
| US States with an Empty Map | 0 | - | 5.00 | 627,888 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,774 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,483 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,008 |
| Top 10 Most Religious U.S. States | 0 | - | 4.32 | 19,417 |
| U.S. States with the Least Gun Ownership | 0 | - | 4.35 | 25,523 |
| Top 10 US States that Produce the Most Coal | 0 | - | 4.30 | 31,161 |
| U.S. States with Youngest Median Age | 0 | - | 4.32 | 20,628 |
| Top 10 U.S. States by Percent Born in State | 0 | - | 4.25 | 12,380 |
| Top 10 U.S. States by Percent Born out of State | 0 | - | 4.22 | 11,875 |
| U.S. States with the Most Workplace Fatalities | 0 | - | 4.09 | 9,590 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,277 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,585 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,038 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,197 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,793 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,895 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 109,223 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 276,483 |
| Word Chain - Africa | 0 | - | 4.47 | 31,697 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 75,969 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 122,731 |
| Famous People from South America | 0 | - | 4.15 | 22,069 |
| USA Tourist Attractions by Description #2 | 0 | - | 4.00 | 21,360 |
| American Inventions #1 | 0 | - | 3.62 | 31,530 |
| American Inventions #2 | 0 | - | 3.93 | 15,884 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,356 |
| Rivers of the United States | 0 | - | 4.93 | 66,582 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,060 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,452 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,985 |
| California Groups of Things | 0 | - | 4.26 | 45,732 |
| University of California Campuses | 0 | - | 3.84 | 8,951 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,502 |
| New York Groups of Things | 0 | - | 4.39 | 71,804 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,570 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 509,452 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,172 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,319 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 50,007 |
| Draw All US State Borders | 0 | - | 4.99 | 140,211 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,747 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,361 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,707 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,345 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,957 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,166 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,240 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.07 | 28,845 |
