| US States Quiz | 0 | - | 5.00 | 17,019,447 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,585 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,549 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,965 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 95,252 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 83,410 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,871 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 336,155 |
| Pixelated United States Map | 0 | - | 4.89 | 94,914 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,713 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,573 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,171 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,419 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,442 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,496 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,537 |
| U.S. States By Population | 0 | - | 4.92 | 154,241 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,356 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,968 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,967 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,592 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,197 |
| US States with an Empty Map | 0 | - | 5.00 | 629,504 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,440 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 107,182 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,589 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,373 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,879 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,438 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,572 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,807 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 178,601 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 83,102 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,830 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,375 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 97,367 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,573 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,826 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,981 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,640 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,462 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,976 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,254 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 151,346 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,185 |
| States of Mexico | 0 | - | 4.96 | 178,689 |
| Mexico States Map Quiz | 0 | - | 4.85 | 105,766 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,778 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,209 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,857 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,695 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,294 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 151,972 |
| United States Country Quiz | 0 | - | 4.43 | 102,325 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 77,097 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,282 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,345 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,650 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,663 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,628 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,252 |
| U.S. Geography by Letter - B | 0 | - | 4.54 | 70,133 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 58,524 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 139,085 |
| Random U.S. City to State | 0 | - | 4.45 | 77,014 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 210,711 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,475 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,484 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,199 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,558 |
| New England States | 0 | - | 4.51 | 59,911 |
| U.S. States by Land Area | 0 | - | 4.55 | 53,111 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,136 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 83,213 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,332 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,180 |
| U.S. States by Borders | 0 | - | 4.61 | 35,513 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 189,215 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,713 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,391 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,479 |
| Countries that Beat Canada | 0 | - | 4.90 | 99,100 |
| United States Map Quiz | 0 | - | 4.98 | 4,173,317 |
| Boroughs of New York City | 0 | - | 4.47 | 85,395 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.64 | 66,163 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,679 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.70 | 61,485 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.75 | 35,131 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,978 |
| Longest U.S. State Borders | 0 | - | 4.69 | 40,193 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,367 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,996 |
| 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 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 114,552 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,385 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 114,663 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,194 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,913 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,819 |
| NHL Hockey Teams in Canada | 0 | - | 4.35 | 35,236 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 362,516 |
| Flags of North and South America | 0 | - | 4.99 | 378,032 |
| Belize Country Quiz | 0 | - | 4.85 | 21,112 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,313 |
| Largest United States Airlines | 0 | - | 4.39 | 55,182 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,928 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,920 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,447 |
| U.S. State Flags | 0 | - | 4.89 | 173,410 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,527 |
| Champions League Winners | 0 | - | 4.92 | 1,017,732 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,682 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,735 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,694 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 50,455 |
| U.S. Geography by Letter - P | 0 | - | 4.40 | 54,604 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,774 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,715 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,863 |
| U.S. Geography by Letter - R | 0 | - | 4.22 | 37,067 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,792 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,565 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,956 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,798 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,756 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,324 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 53,103 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,912 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,519 |
| ALL California Cities | 0 | - | 4.37 | 43,282 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,328 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 75,104 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,580 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,905 |
| Flyover States | 0 | - | 4.53 | 29,615 |
| U.S. States With Double Letters | 0 | - | 4.55 | 24,300 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.28 | 76,451 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,479 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,208 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,575 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,473 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,340 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,709 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,782 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 129,036 |
| U.S. States with the Highest Population Density | 0 | - | 4.47 | 68,508 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.54 | 65,049 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.46 | 119,381 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,479 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,707 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.74 | 64,098 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,843 |
| Top 10 Most Remote U.S. State Capitals | 0 | - | 4.41 | 32,329 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,278 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 37,128 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,760 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.64 | 34,098 |
| African Countries That Have Been to the FIFA World Cup | 0 | - | 4.89 | 60,550 |
| The Only American Country ... | 0 | - | 4.92 | 122,338 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,767 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,953 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 76,045 |
| Regions of U.S. States | 0 | - | 4.37 | 44,248 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,430 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,640 |
| U.S. States with the Lowest HDI | 0 | - | 4.47 | 28,942 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,383 |
| Movies by State | 0 | - | 4.27 | 40,618 |
| US State Capitals by Proximity in 30 Seconds | 0 | - | 4.17 | 129,913 |
| US State Capitals by First Two Letters in 45 seconds | 0 | - | 4.09 | 58,314 |
| U.S State Capitals on the Sea | 0 | - | 4.53 | 26,278 |
| Canada Country Quiz | 0 | - | 4.55 | 133,158 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,675 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,423 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,941 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,822 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.93 | 55,008 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,710 |
| States of Brazil | 0 | - | 4.98 | 90,022 |
| American TV Show Settings | 0 | - | 4.37 | 30,711 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,725 |
| U.S. States by Picture #1 | 0 | - | 4.21 | 15,523 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,908 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,159 |
| Geography of California | 0 | - | 4.26 | 10,718 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,809 |
| Events by U.S. State #1 | 0 | - | 4.43 | 22,977 |
| Most Valuable Crops by U.S. State | 0 | - | 4.40 | 39,246 |
| 10 U.S. States with the Highest Tax Burden | 0 | - | 4.26 | 38,414 |
| Top 10 U.S. States by Manufacturing Employment | 0 | - | 4.49 | 28,891 |
| U.S. States with the Most Venomous Snake Species | 0 | - | 4.48 | 26,501 |
| U.S. States with the Most Endangered Species | 0 | - | 4.50 | 14,402 |
| U.S. State Capitals with the Highest Elevation | 0 | - | 4.56 | 22,684 |
| U.S. State Capitals Furthest from the Sea | 0 | - | 4.49 | 26,133 |
| U.S. States With No City Over 100,000 | 0 | - | 4.57 | 18,154 |
| U.S. States with Exactly One Major Pro Sports Team | 0 | - | 3.91 | 18,505 |
| North American Pro Sports Teams by City | 0 | - | 4.81 | 47,287 |
| U.S. Cities with Teams from All Four Major Sports | 0 | - | 4.88 | 140,224 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 123,808 |
