| United States Map Quiz | 0 | - | 4.98 | 4,142,179 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,382 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,966 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,357 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,884 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,086 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,508 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,914 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,892 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,089 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,507 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,077 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,667 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,854 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,968 |
| North America Map Quiz | 0 | - | 4.98 | 244,525 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,019 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,098 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,633 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,861 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,877 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 216,783 |
| Most Common High School Mascots | 0 | - | 4.47 | 31,835 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,992 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 93,907 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,011 |
| Central American Countries | 0 | - | 4.98 | 155,080 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 145,970 |
| Territories of the United States | 0 | - | 4.79 | 52,151 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,391 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,570 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,754 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,455 |
| New York City Geography | 0 | - | 4.42 | 32,945 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,264 |
| Pixelated United States Map | 0 | - | 4.89 | 93,504 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,103 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,092 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,631 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,522 |
| 75 Americans Named John | 0 | - | 4.41 | 23,826 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,799 |
| New York True or False? | 0 | - | 4.53 | 33,689 |
| The Most Recent... United States | 0 | - | 4.45 | 18,292 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,321 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 32,795 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,418 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 74,888 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,215 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,418 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 89,987 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,354 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,158 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 81,882 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,587 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 70,908 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,373 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,568 |
| Flags of North and South America | 0 | - | 4.99 | 367,429 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,164 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,182 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,258 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,369 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 32,994 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 44,964 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,020 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,227,156 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,757 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,235 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,086 |
| Flags of Oceania | 0 | - | 5.00 | 255,294 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,332 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,947 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,037 |
| Which Island in the United States? | 0 | - | 4.29 | 29,167 |
| American Foods | 0 | - | 3.66 | 39,277 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,109 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.94 | 31,759 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,667 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,193 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,807 |
| U.S. Analogies | 0 | - | 4.27 | 19,608 |
| U.S. Groups of Five | 0 | - | 4.21 | 21,434 |
| Branches of the U.S. Military | 0 | - | 4.40 | 24,164 |
| Florida True or False? | 0 | - | 4.48 | 28,545 |
| Old West History | 0 | - | 4.33 | 15,225 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,493 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,853 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,647 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.44 | 29,583 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,366 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,168 |
| US States with the Most Executions | 0 | - | 4.51 | 26,349 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 28,923 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,621 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.40 | 40,068 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,027 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,587 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,663 |
| Name a Valid Answer - United States #2 | 0 | - | 4.16 | 27,126 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,902 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,843 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,434 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,927 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,166 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,024 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,672 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,198 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,997 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,225 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,535 |
| California Multiple Choice | 0 | - | 4.40 | 28,043 |
| San Francisco Trivia | 0 | - | 4.32 | 15,662 |
| San Francisco A-Z | 0 | - | 4.18 | 9,522 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,165 |
| Boston City Trivia | 0 | - | 4.38 | 24,132 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,641 |
| US States Quiz | 0 | - | 5.00 | 16,705,039 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,309 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,579 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,544 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,020 |
| Pixelated Americas Map | 0 | - | 4.40 | 46,822 |
| History of Mexico | 0 | - | 4.58 | 15,231 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 328,087 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,194 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,426 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,584 |
| USA Tourist Attractions by Description #2 | 0 | - | 4.00 | 21,271 |
| American Inventions #1 | 0 | - | 3.63 | 31,464 |
| American Inventions #2 | 0 | - | 3.93 | 15,829 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,498 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,880 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,681 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,655,566 |
| University of California Campuses | 0 | - | 3.84 | 8,863 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,289 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 24,988 |
| U.S. History Multiple Choice #1 | 0 | - | 4.31 | 22,156 |
| U.S. History Multiple Choice #4 | 0 | - | 4.26 | 25,490 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,753 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,384 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,428 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,692 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,939 |
| U.S. States By Population | 0 | - | 4.92 | 152,393 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,424 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,880 |
| US States with an Empty Map | 0 | - | 5.00 | 618,953 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,575 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,767 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,898 |
| Top 10 Most Religious U.S. States | 0 | - | 4.31 | 19,235 |
| U.S. States with the Least Gun Ownership | 0 | - | 4.35 | 25,381 |
| Top 10 US States that Produce the Most Coal | 0 | - | 4.27 | 25,327 |
| U.S. States with Youngest Median Age | 0 | - | 4.32 | 20,557 |
| Top 10 U.S. States by Percent Born in State | 0 | - | 4.25 | 12,283 |
| Top 10 U.S. States by Percent Born out of State | 0 | - | 4.22 | 11,797 |
| U.S. States with the Most Workplace Fatalities | 0 | - | 4.09 | 9,536 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,087 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,482 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,563 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,812 |
| U.S. Cities by Picture #1 | 0 | - | 4.37 | 34,357 |
| Cities by Picture #2 | 0 | - | 4.19 | 34,941 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,439 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,600 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,990 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,606 |
| Draw All US State Borders | 0 | - | 4.99 | 133,687 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,113 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,950 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,128 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.02 | 27,398 |
| Canada Decoder | 0 | - | 4.12 | 18,650 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,746 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,973 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,611 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,130 |
| Random African Flag to Country | 0 | - | 4.87 | 74,229 |
| Australian Capitals | 0 | - | 4.92 | 62,594 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,590 |
| Famous Caribbean People | 0 | - | 4.37 | 12,566 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 23,930 |
| North America Cities by Map | 0 | - | 4.41 | 47,620 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,461 |
| Rivers of the United States | 0 | - | 4.93 | 65,529 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,361 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,437 |
| U.S. Highway Signs By State | 0 | - | 4.46 | 15,387 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,333 |
| Hawaiian Islands | 0 | - | 4.83 | 42,434 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,456 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,094 |
| Washington State by Picture | 0 | - | 4.26 | 7,686 |
| U.S. State Flags | 0 | - | 4.89 | 167,172 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,512 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,756 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,602 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,884 |
