| US States Quiz | 0 | - | 5.00 | 16,864,810 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,911 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,583 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,852 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,759 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,738 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,924 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 331,761 |
| Pixelated United States Map | 0 | - | 4.87 | 94,236 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,593 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,717 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,810 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,362 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,374 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,929 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,211 |
| U.S. States By Population | 0 | - | 4.92 | 153,508 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,386 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,419 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,253 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,190 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,583 |
| US States with an Empty Map | 0 | - | 5.00 | 624,246 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,158 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,968 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,767 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,371 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,306 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,548 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,722 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,557 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 175,399 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,445 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,116 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,122 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,959 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,127 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,783 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,616 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,592 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,871 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,955 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,885 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 144,093 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,912 |
| States of Mexico | 0 | - | 4.95 | 175,907 |
| Mexico States Map Quiz | 0 | - | 4.85 | 104,695 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,063 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,738 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,502 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,578 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,169 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 150,550 |
| United States Country Quiz | 0 | - | 4.43 | 101,470 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,866 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 40,914 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,074 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,316 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,362 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,285 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,958 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,395 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,852 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,308 |
| Random U.S. City to State | 0 | - | 4.45 | 76,267 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 209,368 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,122 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,711 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,334 |
| New England States | 0 | - | 4.51 | 59,803 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,793 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,006 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,787 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 55,986 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,911 |
| U.S. States by Borders | 0 | - | 4.61 | 35,300 |
| Save Americans by Guessing U.S. States | 0 | - | 4.63 | 185,604 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,474 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,022 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,208 |
| Countries that Beat Canada | 0 | - | 4.90 | 96,046 |
| Olympic Host Countries | 0 | - | 4.98 | 200,658 |
| United States Map Quiz | 0 | - | 4.98 | 4,157,264 |
| Boroughs of New York City | 0 | - | 4.47 | 84,573 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,777 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,468 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,179 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,039 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,788 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,795 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,116 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,874 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,488 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,767 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 113,782 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,302 |
| Speed Capital to U.S. State | 0 | - | 4.45 | 113,954 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,028 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,768 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,680 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,073 |
| NHL Hockey Teams in Canada | 0 | - | 4.35 | 34,938 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,648 |
| Flags of North and South America | 0 | - | 4.99 | 372,826 |
| Belize Country Quiz | 0 | - | 4.85 | 20,964 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,208 |
| Largest United States Airlines | 0 | - | 4.39 | 55,020 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,422 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,415 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,394 |
| U.S. State Flags | 0 | - | 4.89 | 170,265 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,098 |
| Champions League Winners | 0 | - | 4.92 | 1,006,134 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,068 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,069 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,059 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 49,757 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 53,756 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,315 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,118 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,291 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,107 |
| South America Capitals Quiz | 0 | - | 5.00 | 481,152 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,472 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,548 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,121 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.51 | 42,126 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,642 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,448 |
| ALL California Cities | 0 | - | 4.37 | 43,039 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,259 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,836 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,518 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,088 |
| Flyover States | 0 | - | 4.52 | 29,505 |
| U.S. States With Double Letters | 0 | - | 4.55 | 24,106 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 76,138 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,337 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,095 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,491 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 76,987 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,012 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,516 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,625 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,346 |
| U.S. States with the Highest Population Density | 0 | - | 4.47 | 68,373 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,733 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 119,086 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,291 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,507 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,751 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,695 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,068 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 36,919 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,538 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.64 | 33,966 |
| African Countries That Have Been to the FIFA World Cup | 0 | - | 4.88 | 56,786 |
| Countries with the Most Downhill Skiing | 0 | - | 4.89 | 57,355 |
| The Only American Country ... | 0 | - | 4.92 | 121,559 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,073 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,451 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,431 |
| Regions of U.S. States | 0 | - | 4.37 | 43,855 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,382 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,568 |
| U.S. States with the Lowest HDI | 0 | - | 4.47 | 28,843 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,286 |
| Movies by State | 0 | - | 4.27 | 40,538 |
| US State Capitals by Proximity in 30 Seconds | 0 | - | 4.17 | 129,381 |
| US State Capitals by First Two Letters in 45 seconds | 0 | - | 4.09 | 58,144 |
| U.S State Capitals on the Sea | 0 | - | 4.53 | 26,190 |
| Canada Country Quiz | 0 | - | 4.54 | 132,452 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 124,172 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,257 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,132 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,404 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,853 |
| Brazil States Map Quiz | 0 | - | 4.85 | 48,016 |
| States of Brazil | 0 | - | 4.97 | 87,928 |
| American TV Show Settings | 0 | - | 4.35 | 30,643 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,422 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,431 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,755 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,858 |
| Geography of California | 0 | - | 4.26 | 10,562 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,194 |
| Events by U.S. State #1 | 0 | - | 4.43 | 22,908 |
| Most Valuable Crops by U.S. State | 0 | - | 4.40 | 39,086 |
| 10 U.S. States with the Highest Tax Burden | 0 | - | 4.26 | 38,225 |
| Top 10 U.S. States by Manufacturing Employment | 0 | - | 4.49 | 28,813 |
| U.S. States with the Most Venomous Snake Species | 0 | - | 4.47 | 26,424 |
| U.S. States with the Most Endangered Species | 0 | - | 4.50 | 14,358 |
| U.S. State Capitals with the Highest Elevation | 0 | - | 4.56 | 22,621 |
| Top 10 Most Remote U.S. State Capitals | 0 | - | 4.40 | 32,233 |
| U.S. State Capitals Furthest from the Sea | 0 | - | 4.49 | 26,062 |
| U.S. States With No City Over 100,000 | 0 | - | 4.57 | 17,979 |
| U.S. States with Exactly One Major Pro Sports Team | 0 | - | 3.91 | 18,462 |
| U.S. Cities with Teams from All Four Major Sports | 0 | - | 4.88 | 138,320 |
| Countries with the Fastest Marathoners | 0 | - | 4.51 | 95,495 |
| Countries with the Fastest 100 Meter Sprinters | 0 | - | 4.44 | 86,134 |
