| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,807 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,942 |
| US States Quiz | 0 | - | 5.00 | 17,018,310 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,860 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,579 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,541 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,715 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,944 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,156 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 336,100 |
| Pixelated United States Map | 0 | - | 4.89 | 94,912 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,699 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,566 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,167 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,410 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,440 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,492 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,530 |
| U.S. States By Population | 0 | - | 4.92 | 154,233 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,349 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,964 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,965 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,589 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,191 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,428 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,365 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,865 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,434 |
| US States with an Empty Map | 0 | - | 5.00 | 629,464 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,566 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 83,095 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 97,360 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,563 |
| Countries Closest to Alaska | 0 | - | 4.93 | 125,272 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.43 | 60,152 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,680 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,554 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,805 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,975 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,635 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,971 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,249 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,320 |
| States of Mexico | 0 | - | 4.96 | 178,666 |
| Mexico States Map Quiz | 0 | - | 4.85 | 105,764 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,913 |
| History of Pennsylvania | 0 | - | 4.16 | 7,171 |
| History of Virginia | 0 | - | 4.33 | 11,647 |
| Events in U.S. History | 0 | - | 4.41 | 28,850 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,205 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,855 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,793 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,693 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,293 |
| United States Country Quiz | 0 | - | 4.43 | 102,320 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 77,097 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,730,273 |
| American Founding Fathers | 0 | - | 4.42 | 23,278 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,743 |
| California Groups of Things | 0 | - | 4.26 | 45,800 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,328 |
| New York Groups of Things | 0 | - | 4.39 | 72,351 |
| People on Money - United States | 0 | - | 4.31 | 63,449 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,618 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,250 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,662 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,624 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,249 |
| Georgia ... or Georgia? | 0 | - | 4.68 | 77,085 |
| U.S. Geography by Letter - B | 0 | - | 4.54 | 70,129 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 58,504 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 750,250 |
| Names of Generations | 0 | - | 4.09 | 45,586 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 210,708 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,174 |
| Washington D.C. Landmarks on a Map | 0 | - | 4.60 | 18,506 |
| New England States | 0 | - | 4.51 | 59,908 |
| U.S. States by Land Area | 0 | - | 4.55 | 53,109 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,134 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 83,207 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,330 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,180 |
| U.S. States by Borders | 0 | - | 4.61 | 35,512 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,712 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,389 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,478 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,995 |
| United States Map Quiz | 0 | - | 4.98 | 4,173,220 |
| Rivers of the United States | 0 | - | 4.93 | 66,772 |
| Geography of California | 0 | - | 4.26 | 10,710 |
| California Pro Sport Teams | 0 | - | 4.19 | 22,718 |
| New York Pro Sport Teams | 0 | - | 4.32 | 25,972 |
| Texas Pro Sport Teams | 0 | - | 4.19 | 16,863 |
| Washington State by Picture | 0 | - | 4.26 | 7,763 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 50,240 |
| Flags of North and South America | 0 | - | 4.99 | 377,960 |
| Belize Country Quiz | 0 | - | 4.85 | 21,112 |
| Top U.S. Universities | 0 | - | 4.15 | 145,964 |
| Largest United States Airlines | 0 | - | 4.39 | 55,181 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,363 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 53,099 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,910 |
| U.S. States by Governor | 0 | - | 4.43 | 18,121 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,782 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,797 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,824 |
| Famous People from Alabama by Picture | 0 | - | 4.07 | 24,146 |
| State Quiz - Alaska | 0 | - | 4.42 | 42,358 |
| Los Angeles vs. New York | 0 | - | 4.41 | 20,065 |
| State Quiz - Georgia | 0 | - | 4.48 | 35,826 |
| Countries Closest to Hawaii | 0 | - | 4.55 | 54,052 |
| Famous People from Illinois by Picture | 0 | - | 4.03 | 20,243 |
| State Quiz - Illinois | 0 | - | 4.44 | 33,626 |
| Famous People from Indiana by Picture | 0 | - | 4.36 | 25,199 |
| State Quiz - Kentucky | 0 | - | 4.42 | 32,691 |
| Famous People from Maryland by Picture | 0 | - | 4.23 | 16,937 |
| Famous People from Massachusetts by Picture | 0 | - | 4.29 | 24,675 |
| Famous People from Michigan by Picture | 0 | - | 4.30 | 21,516 |
| State Quiz - Minnesota | 0 | - | 4.41 | 39,073 |
| Famous People from New York by Picture | 0 | - | 4.03 | 27,639 |
| Famous Missourians | 0 | - | 4.12 | 6,439 |
| Famous People from New Jersey by Picture | 0 | - | 4.25 | 22,370 |
| State Quiz - New Jersey | 0 | - | 4.42 | 38,411 |
| Famous People from Texas by Picture | 0 | - | 4.00 | 33,478 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,642 |
| Famous People from Ohio by Picture | 0 | - | 4.03 | 17,754 |
| Famous People from Pennsylvania by Picture | 0 | - | 4.24 | 25,550 |
| Movies Set in Pennsylvania | 0 | - | 4.19 | 11,583 |
| State Quiz - Pennsylvania | 0 | - | 4.50 | 49,415 |
| Famous People from Tennessee by Picture | 0 | - | 4.33 | 27,495 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,567 |
| State Quiz - Tennessee | 0 | - | 4.54 | 34,434 |
| Famous People from Virginia by Picture | 0 | - | 4.18 | 24,295 |
| State Quiz - Virginia | 0 | - | 4.53 | 40,571 |
| State Quiz - Washington | 0 | - | 4.45 | 36,709 |
| Famous People from Wisconsin | 0 | - | 4.03 | 6,868 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,182 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.64 | 66,161 |
| U.S. States that Border Canada | 0 | - | 4.91 | 187,001 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,677 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.70 | 61,466 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,901 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,575 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,471 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,335 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,975 |
| Longest U.S. State Borders | 0 | - | 4.69 | 40,191 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,707 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,781 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,996 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 65,048 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,476 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.74 | 64,095 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,584 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,849 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,843 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 114,548 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,382 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,525 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,677 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,732 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,688 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 50,451 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 54,601 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,772 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,714 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,862 |
| U.S. Geography by Letter - R | 0 | - | 4.22 | 37,064 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,788 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 114,032 |
| American Legal Vocabulary | 0 | - | 4.40 | 34,038 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,754 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,324 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,492 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,853 |
| Musical Acts from Los Angeles by Two Songs | 0 | - | 4.27 | 16,356 |
| Movies Set in San Francisco | 0 | - | 4.23 | 19,963 |
| Movies Set in Miami | 0 | - | 4.32 | 16,722 |
| History of Georgia (U.S. State) | 0 | - | 4.30 | 13,267 |
| History of Illinois | 0 | - | 4.24 | 11,259 |
| History of Maryland | 0 | - | 4.06 | 6,737 |
| History of Massachusetts | 0 | - | 4.14 | 8,438 |
| Movies and TV Shows Set in Boston | 0 | - | 4.17 | 9,802 |
| New York City Geography | 0 | - | 4.43 | 33,198 |
| History of New Jersey | 0 | - | 4.38 | 7,316 |
| History of Ohio | 0 | - | 4.14 | 7,388 |
| History of Tennessee | 0 | - | 4.29 | 7,690 |
| History of Washington State | 0 | - | 4.27 | 6,918 |
| Washington... or Washington D.C.? | 0 | - | 4.33 | 26,595 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,557,993 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 75,103 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,579 |
| Flyover States | 0 | - | 4.53 | 29,612 |
| U.S. States With Double Letters | 0 | - | 4.55 | 24,297 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.28 | 76,451 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,696 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,781 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,479 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,205 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 129,032 |
