| US States Quiz | 0 | - | 5.00 | 16,709,148 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,101 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,687 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 241,064 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,448 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,802 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,355 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 328,179 |
| Pixelated United States Map | 0 | - | 4.89 | 93,524 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,521 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,906 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,785 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,406 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,458 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,726 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,974 |
| U.S. States By Population | 0 | - | 4.92 | 152,411 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,453 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,896 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,587 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,779 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,927 |
| US States with an Empty Map | 0 | - | 5.00 | 619,119 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,820 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 105,027 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,112 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,459 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,639 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,639 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,128 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,464 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,583 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,961 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,563 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,898 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,782 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,999 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,821 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,903 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,694 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,621 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,121 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,565 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,419 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,672 |
| States of Mexico | 0 | - | 4.95 | 173,443 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,850 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,427 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,481 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,082 |
| 1M Cities by Proximity - United States | 0 | - | 4.55 | 149,754 |
| United States Country Quiz | 0 | - | 4.43 | 100,642 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,613 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 40,612 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 32,818 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 94,735 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,397 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,663 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 68,552 |
| U.S. Geography by Letter - S | 0 | - | 4.54 | 52,089 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 137,706 |
| Random U.S. City to State | 0 | - | 4.45 | 75,379 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 207,927 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,029 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,740 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,228 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,203 |
| New England States | 0 | - | 4.51 | 59,711 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,499 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,889 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,352 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,669 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,672 |
| U.S. States by Borders | 0 | - | 4.63 | 35,087 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 182,720 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,253 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,150 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 43,999 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,879 |
| Olympic Host Countries | 0 | - | 4.98 | 198,948 |
| United States Map Quiz | 0 | - | 4.98 | 4,142,556 |
| Boroughs of New York City | 0 | - | 4.47 | 84,128 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,434 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,292 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,040 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 34,933 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,592 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,404 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,801 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,775 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,397 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,671 |
| U.S. States with the Fewest Borders | 0 | - | 4.77 | 113,063 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,236 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 113,528 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 38,920 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,661 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,532 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 142,838 |
| NHL Hockey Teams in Canada | 0 | - | 4.35 | 34,563 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 350,209 |
| Flags of North and South America | 0 | - | 4.99 | 367,660 |
| Belize Country Quiz | 0 | - | 4.85 | 20,811 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,062 |
| Largest United States Airlines | 0 | - | 4.39 | 54,845 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 245,872 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 44,617 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,341 |
| U.S. State Flags | 0 | - | 4.89 | 167,267 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,679 |
| Champions League Winners | 0 | - | 4.92 | 996,879 |
| U.S. Geography by Letter - C | 0 | - | 4.26 | 73,360 |
| U.S. Geography by Letter - A | 0 | - | 4.38 | 62,337 |
| U.S. Geography by Letter - D | 0 | - | 4.08 | 56,331 |
| U.S. Geography by Letter - T | 0 | - | 4.27 | 49,023 |
| U.S. Geography by Letter - P | 0 | - | 4.34 | 47,408 |
| U.S. Geography by Letter - M | 0 | - | 4.13 | 52,617 |
| U.S. Geography by Letter - L | 0 | - | 4.03 | 40,379 |
| U.S. Geography by Letter - G | 0 | - | 4.12 | 38,620 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 39,361 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,463 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,166 |
| U.S. Cities by Picture #1 | 0 | - | 4.37 | 34,363 |
| Cities by Picture #2 | 0 | - | 4.19 | 34,946 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.50 | 40,230 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,367 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,389 |
| ALL California Cities | 0 | - | 4.37 | 42,826 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,206 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,616 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,466 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.46 | 52,457 |
| Flyover States | 0 | - | 4.52 | 29,404 |
| U.S. States With Double Letters | 0 | - | 4.54 | 23,929 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 75,834 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,201 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.47 | 36,982 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 32,421 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 76,509 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 48,716 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,286 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,486 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,009 |
| U.S. States with the Highest Population Density | 0 | - | 4.47 | 68,281 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,445 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 118,575 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,105 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,335 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,428 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,568 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 31,932 |
| U.S. State Capital Etymology | 0 | - | 4.50 | 36,797 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,345 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.63 | 33,854 |
| Countries with the Most Downhill Skiing | 0 | - | 4.90 | 56,848 |
| The Only American Country ... | 0 | - | 4.92 | 120,797 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,378 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,983 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,905 |
| Regions of U.S. States | 0 | - | 4.37 | 43,490 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,343 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,496 |
| U.S. States with the Lowest HDI | 0 | - | 4.46 | 28,769 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,203 |
| Movies by State | 0 | - | 4.27 | 40,445 |
| US State Capitals by Proximity in 30 Seconds | 0 | - | 4.17 | 128,819 |
| US State Capitals by First Two Letters in 45 seconds | 0 | - | 4.09 | 58,040 |
| U.S State Capitals on the Sea | 0 | - | 4.53 | 26,125 |
| Canada Country Quiz | 0 | - | 4.54 | 131,761 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,638 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,570 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,125 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,002 |
| Mexico Cities Map Quiz | 0 | - | 4.77 | 33,319 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,016 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,413 |
| States of Brazil | 0 | - | 4.98 | 86,441 |
| American TV Show Settings | 0 | - | 4.35 | 30,588 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,232 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,365 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,610 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,548 |
| Geography of California | 0 | - | 4.25 | 10,505 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,662 |
| Events by U.S. State #1 | 0 | - | 4.43 | 22,835 |
| Most Valuable Crops by U.S. State | 0 | - | 4.40 | 38,932 |
| 10 U.S. States with the Highest Tax Burden | 0 | - | 4.26 | 38,028 |
| Top 10 U.S. States by Manufacturing Employment | 0 | - | 4.49 | 28,739 |
| U.S. States with the Most Venomous Snake Species | 0 | - | 4.47 | 26,319 |
| U.S. States with the Most Endangered Species | 0 | - | 4.50 | 14,327 |
| U.S. State Capitals with the Highest Elevation | 0 | - | 4.56 | 22,562 |
| Top 10 Most Remote U.S. State Capitals | 0 | - | 4.40 | 32,155 |
| U.S. State Capitals Furthest from the Sea | 0 | - | 4.48 | 26,013 |
| Most-Visited Countries by Canadians | 0 | - | 4.77 | 39,121 |
| U.S. States With No City Over 100,000 | 0 | - | 4.57 | 17,821 |
| U.S. States with Exactly One Major Pro Sports Team | 0 | - | 3.91 | 18,376 |
| U.S. Cities with Teams from All Four Major Sports | 0 | - | 4.88 | 136,464 |
| Countries with the Fastest Marathoners | 0 | - | 4.51 | 94,667 |
| Countries with the Fastest 100 Meter Sprinters | 0 | - | 4.44 | 85,449 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,131 |
