| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,633 |
| US States Quiz | 0 | - | 5.00 | 16,702,837 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,292 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,009 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,667 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,184 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,957 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,530 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 328,061 |
| Pixelated United States Map | 0 | - | 4.89 | 93,495 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,488 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,864 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,271 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,745 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,374 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,427 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,682 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,927 |
| U.S. States By Population | 0 | - | 4.92 | 152,382 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,412 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,870 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,560 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,767 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,891 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,809 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,429 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,587 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,597 |
| US States with an Empty Map | 0 | - | 5.00 | 618,890 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,109 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,941 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,728 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,962 |
| Georgia ... or Georgia? | 0 | - | 4.69 | 76,424 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,595 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,731 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,878 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,665 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,078 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,556 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,082 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,501 |
| States of Mexico | 0 | - | 4.95 | 173,364 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,803 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,758 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,265 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,477 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,079 |
| United States Country Quiz | 0 | - | 4.43 | 100,594 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,605 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,170 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,366 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,656 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 68,540 |
| U.S. Geography by Letter - S | 0 | - | 4.54 | 52,080 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 743,230 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 207,888 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,741 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,199 |
| Washington... or Washington D.C.? | 0 | - | 4.33 | 26,458 |
| New England States | 0 | - | 4.51 | 59,707 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,476 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,883 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,332 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,645 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,666 |
| U.S. States by Borders | 0 | - | 4.63 | 35,073 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,198 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,246 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,140 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 43,995 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,513 |
| United States Map Quiz | 0 | - | 4.98 | 4,142,030 |
| California Pro Sport Teams | 0 | - | 4.19 | 22,650 |
| Chicago City Trivia | 0 | - | 4.31 | 31,379 |
| Texas Pro Sport Teams | 0 | - | 4.19 | 16,776 |
| History of Pennsylvania | 0 | - | 4.16 | 7,087 |
| History of Virginia | 0 | - | 4.31 | 11,556 |
| Washington State by Picture | 0 | - | 4.26 | 7,685 |
| Events by U.S. State #1 | 0 | - | 4.43 | 22,834 |
| Flags of North and South America | 0 | - | 4.99 | 367,318 |
| Belize Country Quiz | 0 | - | 4.85 | 20,808 |
| Top U.S. Universities | 0 | - | 4.15 | 144,094 |
| Largest United States Airlines | 0 | - | 4.39 | 54,837 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.50 | 39,911 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,349 |
| U.S. States by Governor | 0 | - | 4.43 | 17,984 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,574 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,550 |
| Famous People from Illinois by Picture | 0 | - | 4.03 | 20,071 |
| Famous People from Indiana by Picture | 0 | - | 4.35 | 24,861 |
| Famous People from Maryland by Picture | 0 | - | 4.23 | 16,755 |
| Famous People from Massachusetts by Picture | 0 | - | 4.29 | 24,372 |
| Famous Missourians | 0 | - | 4.12 | 6,371 |
| Famous People from New Jersey by Picture | 0 | - | 4.25 | 22,132 |
| Famous People from Ohio by Picture | 0 | - | 4.03 | 17,614 |
| Famous People from Pennsylvania by Picture | 0 | - | 4.24 | 25,307 |
| Movies Set in Pennsylvania | 0 | - | 4.19 | 11,528 |
| Famous People from Tennessee by Picture | 0 | - | 4.35 | 27,209 |
| Famous People from Virginia by Picture | 0 | - | 4.18 | 24,139 |
| Famous People from Wisconsin | 0 | - | 4.03 | 6,795 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,664 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,417 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,279 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,032 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.46 | 52,183 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 32,418 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 76,490 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 34,930 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 48,703 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,585 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,388 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,276 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,483 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,770 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,436 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,092 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,411 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,393 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,666 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,562 |
| U.S. States with the Fewest Borders | 0 | - | 4.77 | 113,040 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,234 |
| U.S. Geography by Letter - C | 0 | - | 4.26 | 73,349 |
| U.S. Geography by Letter - A | 0 | - | 4.38 | 62,328 |
| U.S. Geography by Letter - D | 0 | - | 4.08 | 56,323 |
| U.S. Geography by Letter - T | 0 | - | 4.27 | 49,012 |
| U.S. Geography by Letter - P | 0 | - | 4.34 | 47,397 |
| U.S. Geography by Letter - M | 0 | - | 4.13 | 52,609 |
| U.S. Geography by Letter - L | 0 | - | 4.03 | 40,365 |
| U.S. Geography by Letter - G | 0 | - | 4.12 | 38,611 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 39,344 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,380 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,793 |
| U.S. Cities by Picture #1 | 0 | - | 4.37 | 34,356 |
| Cities by Picture #2 | 0 | - | 4.19 | 34,939 |
| American Founding Fathers | 0 | - | 4.41 | 23,074 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,137 |
| California Groups of Things | 0 | - | 4.25 | 45,271 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,206 |
| Movies and TV Shows Set in Boston | 0 | - | 4.17 | 9,738 |
| New York Groups of Things | 0 | - | 4.38 | 59,944 |
| New York City Geography | 0 | - | 4.42 | 32,940 |
| Famous People from North Carolina by Picture | 0 | - | 3.72 | 14,954 |
| Famous People from South Carolina | 0 | - | 3.72 | 6,209 |
| People on Money - United States | 0 | - | 4.31 | 63,206 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,244 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 44,731 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,612 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,463 |
| Flyover States | 0 | - | 4.52 | 29,398 |
| U.S. States With Double Letters | 0 | - | 4.54 | 23,920 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 75,818 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,194 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.47 | 36,980 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 127,995 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 118,564 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,322 |
| The Only American Country ... | 0 | - | 4.92 | 120,767 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,352 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,962 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,347 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,880 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,019 |
| Regions of U.S. States | 0 | - | 4.37 | 43,477 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,341 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,494 |
| U.S. States with the Lowest HDI | 0 | - | 4.46 | 28,763 |
| Events by U.S. State #2 | 0 | - | 4.27 | 18,549 |
| Movies by State | 0 | - | 4.27 | 40,445 |
| People by U.S. State - Multiple Choice | 0 | - | 4.06 | 9,800 |
| Canada Country Quiz | 0 | - | 4.54 | 131,726 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,616 |
| Canada A-Z | 0 | - | 4.73 | 32,652 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,076 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,104 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,093 |
| U.S. Geography by Letter - N | 0 | - | 3.79 | 52,166 |
| U.S. Geography by Letter - E | 0 | - | 3.73 | 48,200 |
| U.S. Geography by Letter - F | 0 | - | 3.86 | 44,449 |
| U.S. Geography by Letter - O | 0 | - | 3.43 | 33,797 |
| U.S. Geography by Letter - R | 0 | - | 4.15 | 30,273 |
| Mexico Country Quiz | 0 | - | 4.49 | 71,985 |
| Mexico Cities Map Quiz | 0 | - | 4.77 | 33,314 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,976 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,388 |
| States of Brazil | 0 | - | 4.98 | 86,395 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,334 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,458 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,542 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,159 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,292 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,302 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,741 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,799 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,360 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,396 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,512 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,768 |
| Senators Who Ran For President | 0 | - | 4.24 | 16,995 |
