| US States Quiz | 0 | - | 5.00 | 16,988,677 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,441 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,348 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,317 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,890 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,740 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,527 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 335,203 |
| Pixelated United States Map | 0 | - | 4.88 | 94,779 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,496 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,411 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,030 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,230 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,246 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,295 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,314 |
| U.S. States By Population | 0 | - | 4.92 | 154,101 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,183 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,865 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,830 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,524 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,064 |
| US States with an Empty Map | 0 | - | 5.00 | 628,370 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,381 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,941 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,399 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,165 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,608 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,251 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,418 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,578 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 177,965 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 83,006 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,609 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,298 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 97,031 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,140 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,463 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,808 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,440 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,239 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,787 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,181 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,880 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,126 |
| States of Mexico | 0 | - | 4.96 | 178,134 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,569 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,635 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,134 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,806 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,671 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,272 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 151,785 |
| United States Country Quiz | 0 | - | 4.43 | 102,157 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 77,057 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,180 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,296 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,581 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,603 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,246 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,190 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,880 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 53,301 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,992 |
| Random U.S. City to State | 0 | - | 4.45 | 76,864 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 210,461 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,436 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,408 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,093 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,530 |
| New England States | 0 | - | 4.51 | 59,893 |
| U.S. States by Land Area | 0 | - | 4.55 | 53,041 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,114 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 83,127 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,272 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,133 |
| U.S. States by Borders | 0 | - | 4.62 | 35,467 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 188,691 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,674 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,326 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,438 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,959 |
| Olympic Host Countries | 0 | - | 4.98 | 201,901 |
| United States Map Quiz | 0 | - | 4.98 | 4,170,672 |
| Boroughs of New York City | 0 | - | 4.47 | 85,299 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.64 | 66,065 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,622 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 57,440 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,117 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,934 |
| Longest U.S. State Borders | 0 | - | 4.69 | 40,108 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,323 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,973 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,568 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,834 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 114,196 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,363 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 114,584 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,129 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,856 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,780 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,125 |
| NHL Hockey Teams in Canada | 0 | - | 4.35 | 35,190 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,383 |
| Flags of North and South America | 0 | - | 4.99 | 376,715 |
| Belize Country Quiz | 0 | - | 4.85 | 21,078 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,298 |
| Largest United States Airlines | 0 | - | 4.39 | 55,149 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,800 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,510 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,436 |
| U.S. State Flags | 0 | - | 4.89 | 172,797 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,423 |
| Champions League Winners | 0 | - | 4.92 | 1,015,596 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,474 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,508 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,484 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 50,189 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 54,387 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,605 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,506 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,672 |
| U.S. Geography by Letter - R | 0 | - | 4.22 | 36,841 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,587 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,818 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,724 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,716 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,284 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 52,964 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,867 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,493 |
| ALL California Cities | 0 | - | 4.37 | 43,226 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,318 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 75,050 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,562 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,793 |
| Flyover States | 0 | - | 4.53 | 29,589 |
| U.S. States With Double Letters | 0 | - | 4.55 | 24,254 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.28 | 76,389 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,458 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,180 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,562 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,377 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,275 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,675 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,752 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,951 |
| U.S. States with the Highest Population Density | 0 | - | 4.47 | 68,482 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,987 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.46 | 119,321 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,429 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,666 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.74 | 64,021 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,813 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,211 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 37,086 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,698 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.64 | 34,066 |
| African Countries That Have Been to the FIFA World Cup | 0 | - | 4.89 | 59,800 |
| Countries with the Most Downhill Skiing | 0 | - | 4.89 | 57,692 |
| The Only American Country ... | 0 | - | 4.92 | 122,185 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,626 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,866 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,916 |
| Regions of U.S. States | 0 | - | 4.37 | 44,171 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,419 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,630 |
| U.S. States with the Lowest HDI | 0 | - | 4.47 | 28,928 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,363 |
| Movies by State | 0 | - | 4.27 | 40,605 |
| US State Capitals by Proximity in 30 Seconds | 0 | - | 4.17 | 129,753 |
| US State Capitals by First Two Letters in 45 seconds | 0 | - | 4.09 | 58,232 |
| U.S State Capitals on the Sea | 0 | - | 4.53 | 26,252 |
| Canada Country Quiz | 0 | - | 4.55 | 133,015 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,588 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,030 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,805 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,735 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,758 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,550 |
| States of Brazil | 0 | - | 4.97 | 89,629 |
| American TV Show Settings | 0 | - | 4.37 | 30,700 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,481 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,514 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,868 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,084 |
| Geography of California | 0 | - | 4.26 | 10,623 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,697 |
| Events by U.S. State #1 | 0 | - | 4.43 | 22,964 |
| Most Valuable Crops by U.S. State | 0 | - | 4.40 | 39,215 |
| 10 U.S. States with the Highest Tax Burden | 0 | - | 4.26 | 38,369 |
| Top 10 U.S. States by Manufacturing Employment | 0 | - | 4.49 | 28,874 |
| U.S. States with the Most Venomous Snake Species | 0 | - | 4.48 | 26,483 |
| U.S. States with the Most Endangered Species | 0 | - | 4.50 | 14,394 |
| U.S. State Capitals with the Highest Elevation | 0 | - | 4.56 | 22,665 |
| Top 10 Most Remote U.S. State Capitals | 0 | - | 4.40 | 32,297 |
| U.S. State Capitals Furthest from the Sea | 0 | - | 4.49 | 26,103 |
| U.S. States With No City Over 100,000 | 0 | - | 4.57 | 18,112 |
| U.S. States with Exactly One Major Pro Sports Team | 0 | - | 3.91 | 18,502 |
| North American Pro Sports Teams by City | 0 | - | 4.81 | 46,983 |
