| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,215 |
| US States Quiz | 0 | - | 5.00 | 16,872,621 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,014 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,939 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,630 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,475 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,992 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,872 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 331,938 |
| Pixelated United States Map | 0 | - | 4.87 | 94,256 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,662 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,757 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,783 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,851 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,401 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,417 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,980 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,272 |
| U.S. States By Population | 0 | - | 4.92 | 153,529 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,435 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,434 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,288 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,204 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,607 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,172 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,437 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,432 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,588 |
| US States with an Empty Map | 0 | - | 5.00 | 624,497 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,753 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,465 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,008 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,181 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,440 |
| California Groups of Things | 0 | - | 4.25 | 45,488 |
| Los Angeles vs. New York | 0 | - | 4.41 | 19,859 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,346 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,863 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,641 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,639 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,988 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,900 |
| Musical Acts from Los Angeles by Two Songs | 0 | - | 4.27 | 16,103 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,931 |
| States of Mexico | 0 | - | 4.95 | 176,025 |
| Mexico States Map Quiz | 0 | - | 4.85 | 104,715 |
| Geography of California | 0 | - | 4.26 | 10,565 |
| California Pro Sport Teams | 0 | - | 4.19 | 22,688 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,842 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,767 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,766 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,533 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,516 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,584 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,173 |
| United States Country Quiz | 0 | - | 4.43 | 101,496 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,875 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,263 |
| New York Groups of Things | 0 | - | 4.35 | 63,684 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,378 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,334 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,971 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,416 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,861 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 747,088 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 209,453 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,978 |
| Movies Set in San Francisco | 0 | - | 4.23 | 19,937 |
| New England States | 0 | - | 4.51 | 59,807 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,808 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,009 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,812 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 55,998 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,923 |
| U.S. States by Borders | 0 | - | 4.61 | 35,313 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,481 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,037 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,217 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,763 |
| United States Map Quiz | 0 | - | 4.98 | 4,158,242 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,325 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,104 |
| New York Pro Sport Teams | 0 | - | 4.32 | 25,899 |
| Texas Pro Sport Teams | 0 | - | 4.19 | 16,823 |
| History of Pennsylvania | 0 | - | 4.16 | 7,135 |
| History of Virginia | 0 | - | 4.31 | 11,599 |
| Washington State by Picture | 0 | - | 4.26 | 7,727 |
| Flags of North and South America | 0 | - | 4.99 | 373,030 |
| Belize Country Quiz | 0 | - | 4.85 | 20,972 |
| Top U.S. Universities | 0 | - | 4.15 | 145,113 |
| Largest United States Airlines | 0 | - | 4.39 | 55,025 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.51 | 42,155 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,654 |
| U.S. States by Governor | 0 | - | 4.43 | 18,062 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,693 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,676 |
| Famous People from Alabama by Picture | 0 | - | 4.07 | 24,055 |
| Famous People from Illinois by Picture | 0 | - | 4.03 | 20,150 |
| Famous People from Indiana by Picture | 0 | - | 4.36 | 25,035 |
| Famous People from Maryland by Picture | 0 | - | 4.23 | 16,842 |
| Famous People from Massachusetts by Picture | 0 | - | 4.29 | 24,495 |
| Famous People from Michigan by Picture | 0 | - | 4.30 | 21,390 |
| Famous People from New York by Picture | 0 | - | 4.03 | 27,484 |
| Famous Missourians | 0 | - | 4.12 | 6,406 |
| Famous People from New Jersey by Picture | 0 | - | 4.25 | 22,244 |
| Famous People from Texas by Picture | 0 | - | 3.99 | 33,369 |
| Famous People from Ohio by Picture | 0 | - | 4.03 | 17,683 |
| Famous People from Pennsylvania by Picture | 0 | - | 4.24 | 25,434 |
| Movies Set in Pennsylvania | 0 | - | 4.19 | 11,559 |
| Famous People from Tennessee by Picture | 0 | - | 4.33 | 27,346 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,319 |
| Famous People from Virginia by Picture | 0 | - | 4.18 | 24,208 |
| Famous People from Wisconsin | 0 | - | 4.03 | 6,829 |
| Events in U.S. History | 0 | - | 4.41 | 28,669 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 52,923 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,788 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,482 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,185 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,123 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,494 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,008 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,041 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,033 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,795 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,814 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,528 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,632 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,874 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,745 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,298 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,765 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,490 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,770 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,697 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 113,841 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,303 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,080 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,089 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,083 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 49,774 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 53,850 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,327 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,133 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,301 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,122 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,728 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,915 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,555 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,136 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,361 |
| American Founding Fathers | 0 | - | 4.42 | 23,223 |
| Movies Set in Miami | 0 | - | 4.32 | 16,698 |
| Movies and TV Shows Set in Boston | 0 | - | 4.17 | 9,777 |
| New York City Geography | 0 | - | 4.42 | 33,095 |
| People on Money - United States | 0 | - | 4.31 | 63,344 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,455 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,048 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,845 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,522 |
| Flyover States | 0 | - | 4.52 | 29,513 |
| U.S. States With Double Letters | 0 | - | 4.55 | 24,117 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 76,151 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,339 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,098 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,368 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 119,093 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,520 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,676 |
| The Only American Country ... | 0 | - | 4.92 | 121,593 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,104 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,475 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,446 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,461 |
| Names of Generations | 0 | - | 4.09 | 44,878 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,013 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,052 |
| Regions of U.S. States | 0 | - | 4.37 | 43,869 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,385 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,571 |
| U.S. States with the Lowest HDI | 0 | - | 4.47 | 28,849 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,294 |
| Movies by State | 0 | - | 4.27 | 40,542 |
| Canada Country Quiz | 0 | - | 4.54 | 132,471 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 124,194 |
| Canada A-Z | 0 | - | 4.73 | 32,833 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,404 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,958 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,166 |
| U.S. Geography by Letter - N | 0 | - | 3.80 | 52,742 |
| U.S. Geography by Letter - E | 0 | - | 3.75 | 48,765 |
| U.S. Geography by Letter - F | 0 | - | 3.87 | 45,028 |
| U.S. Geography by Letter - O | 0 | - | 3.52 | 41,491 |
| U.S. Geography by Letter - R | 0 | - | 4.18 | 31,018 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,418 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,891 |
| Brazil States Map Quiz | 0 | - | 4.85 | 48,038 |
| States of Brazil | 0 | - | 4.97 | 88,010 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,715 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,266 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,219 |
