| United States Map Quiz | 0 | - | 4.98 | 4,169,483 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,947 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,826 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,710 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,870 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 74,902 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,215 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 83,004 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,600 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,142 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,617 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,793 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,606 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,945 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,030,109 |
| North America Map Quiz | 0 | - | 4.98 | 251,253 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,666 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,062 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,506 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,005 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 904,611 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 222,152 |
| Most Common High School Mascots | 0 | - | 4.47 | 32,288 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,722 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 95,086 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,869 |
| Central American Countries | 0 | - | 4.98 | 157,210 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,473 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 150,091 |
| Territories of the United States | 0 | - | 4.80 | 52,592 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,847 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 176,024 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,485 |
| Name a Valid Answer - United States #1 | 0 | - | 4.62 | 94,343 |
| New York City Geography | 0 | - | 4.43 | 33,176 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,702 |
| Pixelated United States Map | 0 | - | 4.88 | 94,739 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,609 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,427 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,765 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,714 |
| 75 Americans Named John | 0 | - | 4.41 | 23,965 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,154 |
| New York True or False? | 0 | - | 4.53 | 33,934 |
| The Most Recent... United States | 0 | - | 4.46 | 18,558 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,897 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,204 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,815 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,431 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,496 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,838 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,306 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,227 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,558 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,989 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,230 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 47,065 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,701 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,668 |
| Flags of North and South America | 0 | - | 4.99 | 376,363 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,913 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,712 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,524 |
| South America Map Quiz | 0 | - | 5.00 | 1,555,387 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,183 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,247 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,254 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,255,708 |
| Flags of Asia Quiz | 0 | - | 4.99 | 619,093 |
| Flags of Africa Quiz | 0 | - | 5.00 | 476,574 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,841 |
| Flags of Oceania | 0 | - | 5.00 | 262,225 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,833 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,183 |
| Which Island in the United States? | 0 | - | 4.29 | 29,743 |
| American Foods | 0 | - | 3.66 | 39,430 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,145 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,325 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.27 | 14,809 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,425 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,972 |
| U.S. Analogies | 0 | - | 4.27 | 19,714 |
| U.S. Groups of Five | 0 | - | 4.21 | 21,689 |
| Branches of the U.S. Military | 0 | - | 4.40 | 24,489 |
| Florida True or False? | 0 | - | 4.48 | 28,759 |
| Old West History | 0 | - | 4.34 | 15,294 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,532 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,980 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,772 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,781 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,698 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,516 |
| US States with the Most Executions | 0 | - | 4.51 | 26,422 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,148 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,235 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,236 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,802 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,887 |
| Name a Valid Answer - United States #2 | 0 | - | 4.16 | 27,446 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,403 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,373 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,695 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,376 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,754 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,402 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,411 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,271 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,415 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,094 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,438 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,066 |
| California Multiple Choice | 0 | - | 4.40 | 28,168 |
| San Francisco Trivia | 0 | - | 4.32 | 15,724 |
| San Francisco A-Z | 0 | - | 4.18 | 9,586 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,200 |
| Boston City Trivia | 0 | - | 4.38 | 24,195 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,661 |
| US States Quiz | 0 | - | 5.00 | 16,977,946 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,455 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,726 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,222 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,364 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,384 |
| History of Mexico | 0 | - | 4.52 | 15,358 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 334,967 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,421 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,147 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,830 |
| USA Tourist Attractions by Description #2 | 0 | - | 4.00 | 21,362 |
| American Inventions #1 | 0 | - | 3.62 | 31,532 |
| American Inventions #2 | 0 | - | 3.93 | 15,886 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,416 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,353 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,833 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,722,086 |
| University of California Campuses | 0 | - | 3.84 | 8,953 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,662 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 25,114 |
| U.S. History Multiple Choice #1 | 0 | - | 4.29 | 22,278 |
| U.S. History Multiple Choice #4 | 0 | - | 4.24 | 25,655 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,947 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,162 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,183 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,228 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,226 |
| U.S. States By Population | 0 | - | 4.92 | 154,069 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,124 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,828 |
| US States with an Empty Map | 0 | - | 5.00 | 628,038 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,794 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,499 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,028 |
| Top 10 Most Religious U.S. States | 0 | - | 4.32 | 19,427 |
| U.S. States with the Least Gun Ownership | 0 | - | 4.35 | 25,525 |
| Top 10 US States that Produce the Most Coal | 0 | - | 4.30 | 31,171 |
| U.S. States with Youngest Median Age | 0 | - | 4.32 | 20,629 |
| Top 10 U.S. States by Percent Born in State | 0 | - | 4.25 | 12,382 |
| Top 10 U.S. States by Percent Born out of State | 0 | - | 4.22 | 11,877 |
| U.S. States with the Most Workplace Fatalities | 0 | - | 4.09 | 9,592 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,278 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,585 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,358 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,708 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,278 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,082 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,499 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 509,620 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,191 |
| Draw All US State Borders | 0 | - | 4.99 | 140,324 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,372 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,971 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,240 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.07 | 28,858 |
| Canada Decoder | 0 | - | 4.07 | 18,764 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,920 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,045 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,263 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,486 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,197 |
| Australian Capitals | 0 | - | 4.92 | 62,817 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,768 |
| Famous Caribbean People | 0 | - | 4.37 | 12,654 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,134 |
| North America Cities by Map | 0 | - | 4.41 | 47,920 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,676 |
| Rivers of the United States | 0 | - | 4.93 | 66,594 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,504 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,626 |
| U.S. Highway Signs By State | 0 | - | 4.46 | 15,564 |
| Countries Closest to Alaska | 0 | - | 4.93 | 125,019 |
| Hawaiian Islands | 0 | - | 4.83 | 42,912 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,526 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,480 |
| Washington State by Picture | 0 | - | 4.26 | 7,753 |
| U.S. State Flags | 0 | - | 4.89 | 172,543 |
| U.S. States that Border Canada | 0 | - | 4.91 | 186,434 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,368 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 50,025 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,769 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,383 |
