| US States Quiz | 0 | - | 5.00 | 14,554,481 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 337,971 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 99,291 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 94,958 |
| 10 Southernmost U.S. States | 0 | - | 4.84 | 97,980 |
| U.S. States with Short Names | 0 | - | 4.87 | 128,161 |
| U.S. States that Start with M | 0 | - | 4.91 | 149,012 |
| U.S. States By Population | 0 | - | 4.90 | 129,123 |
| U.S. States that Start with N | 0 | - | 4.95 | 154,155 |
| U.S. States with Longest Names | 0 | - | 4.84 | 35,413 |
| U.S. States with a Unique First Letter | 0 | - | 4.95 | 76,948 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 57,806 |
| The Only Remaining U.S. State . . . | 0 | - | 4.94 | 54,349 |
| U.S. States with the Longest International Borders | 0 | - | 4.81 | 39,796 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 70,217 |
| Louisiana Purchase with a Map | 0 | - | 4.94 | 35,390 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 114,775 |
| US States with an Empty Map | 0 | - | 5.00 | 548,067 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 171,093 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 148,329 |
| Name a Valid U.S. State #1 | 0 | - | 4.95 | 182,336 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 80,065 |
| Top 10 Most Native American U.S. States | 0 | - | 4.84 | 70,245 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 79,069 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.85 | 38,751 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.89 | 88,288 |
| U.S. States with the Most Immigrants | 0 | - | 4.86 | 72,578 |
| New England States | 0 | - | 4.53 | 52,340 |
| US States by Land Area | 0 | - | 4.59 | 48,168 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.52 | 35,978 |
| Add a Letter - Make a U.S. State | 0 | - | 4.76 | 75,904 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 50,611 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.78 | 36,960 |
| 10 Easternmost U.S. States | 0 | - | 4.54 | 52,651 |
| The Only U.S. State ... #1 | 0 | - | 4.55 | 82,078 |
| Most-Visited U.S. Cities | 0 | - | 4.87 | 71,006 |
| Every U.S. Metro Area on a Map | 0 | - | 4.96 | 61,802 |
| Total United States Immigration by Country | 0 | - | 4.89 | 95,794 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.95 | 181,717 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.82 | 53,981 |
| Longest U.S. State Borders | 0 | - | 4.62 | 33,726 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.66 | 59,291 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.74 | 53,755 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.76 | 52,658 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 48,941 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 91,842 |
| Countries that Visit the United States the Most | 0 | - | 4.95 | 77,454 |
| Pixelated United States Map | 0 | - | 4.91 | 81,183 |
| U.S. State Superlatives #1 | 0 | - | 4.45 | 74,968 |
| U.S. State Superlatives #2 | 0 | - | 4.51 | 37,053 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.34 | 70,320 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.49 | 20,401 |
| Flyover States | 0 | - | 4.51 | 27,840 |
| U.S. States With Double Letters | 0 | - | 4.67 | 3,978 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.29 | 57,306 |
| U.S. States by Borders | 0 | - | 4.59 | 26,067 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.45 | 64,502 |
| Most Guessed U.S. Cities | 0 | - | 4.90 | 90,248 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.82 | 60,476 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 123,236 |
| Countries that Beat the United States | 0 | - | 4.92 | 143,455 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.95 | 269,158 |
| 10 Longest Rivers in the United States | 0 | - | 4.82 | 34,622 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 455,546 |
| U.S. State Capitals Map Quiz | 0 | - | 4.91 | 123,115 |
| Hawaiian Islands Map Quiz | 0 | - | 4.88 | 20,879 |
| Great Plains States and Provinces on a Map | 0 | - | 4.94 | 37,123 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.58 | 19,707 |
| U.S. States with the Lowest HDI | 0 | - | 4.46 | 27,357 |
| Which U.S. State - Multiple Choice | 0 | - | 4.45 | 18,840 |
| Top 10 Coldest U.S. States | 0 | - | 4.91 | 99,240 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 99,765 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 56,864 |
| Capitals of Canadian Provinces | 0 | - | 4.86 | 72,949 |
| Mexico States Map Quiz | 0 | - | 4.84 | 89,333 |
| States of Mexico | 0 | - | 4.94 | 138,099 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.44 | 47,561 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.50 | 33,724 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 68,261 |
| Name a Valid U.S. State #3 | 0 | - | 4.79 | 43,511 |
| U.S. States with the Highest Population Density | 0 | - | 4.46 | 66,308 |
| Name a Valid U.S. State Capital | 0 | - | 4.82 | 48,805 |
| United States Map Quiz | 0 | - | 4.98 | 3,879,015 |
| Cartoon Versions of U.S. States | 0 | - | 4.84 | 50,892 |
| U.S. State Flags | 0 | - | 4.87 | 133,892 |
| U.S. States that Border Canada | 0 | - | 4.90 | 164,837 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 37,248 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.47 | 35,199 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.47 | 40,234 |
| Speed Capital to U.S. State | 0 | - | 4.43 | 105,380 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.53 | 36,970 |
| US States and State Capitals Quiz | 0 | - | 5.00 | 115,867 |
| Countries Closest to Canada | 0 | - | 4.90 | 183,132 |
| U.S. States with the Fewest Borders | 0 | - | 4.76 | 104,634 |
| U.S. States with the Most Borders | 0 | - | 4.57 | 60,929 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 67,521 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.52 | 58,083 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.54 | 31,626 |
| Fifty US States in One Minute | 0 | - | 4.55 | 3,212,209 |
| U.S. State Symbols | 0 | - | 4.38 | 23,586 |
| U.S. States along the Atlantic and Gulf Coast | 0 | - | 4.40 | 28,325 |
| U.S. States Without Individual Income Tax | 0 | - | 4.30 | 27,387 |
| 10 Northernmost U.S. States | 0 | - | 4.86 | 59,600 |
| Top 10 U.S. States Taller than Wide | 0 | - | 4.04 | 12,628 |
| Top 10 U.S. States Wider than Tall | 0 | - | 4.30 | 13,648 |
| Category Elimination - U.S. States #1 | 0 | - | 4.91 | 192,874 |
| U.S. Panhandles | 0 | - | 4.25 | 25,396 |
| Top 10 Happiest U.S. States | 0 | - | 4.37 | 18,792 |
| U.S. States with a Unique Last Letter | 0 | - | 4.14 | 19,393 |
| Hated U.S. States | 0 | - | 4.09 | 13,096 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 144,225 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 166,796 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.85 | 98,465 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,514,159 |
| Random U.S. States on a Map | 0 | - | 4.95 | 476,243 |
| Regions of US States | 0 | - | 4.19 | 31,357 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.39 | 28,297 |
| Top Producing U.S. States | 0 | - | 4.23 | 28,442 |
| Landmarks of U.S. States #2 | 0 | - | 4.18 | 17,740 |
| Landmarks of U.S. States #1 | 0 | - | 4.28 | 21,976 |
| U.S. States with the Highest HDI | 0 | - | 4.08 | 24,041 |
| States of Origin - American Popular Music | 0 | - | 4.17 | 9,830 |
| 1M Cities by Proximity - United States | 0 | - | 4.49 | 135,753 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.72 | 36,222 |
| Countries with American Expatriates | 0 | - | 4.59 | 40,792 |
| United States Country Quiz | 0 | - | 4.45 | 87,806 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 38,115 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 71,933 |
| U.S. National Parks Quiz | 0 | - | 4.79 | 46,178 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.87 | 50,529 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 31,399 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 121,928 |
| Events by U.S. State #1 | 0 | - | 4.41 | 21,643 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.38 | 120,427 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.58 | 129,858 |
| Random U.S. City to State | 0 | - | 4.43 | 64,995 |
| South America Capitals Quiz | 0 | - | 5.00 | 414,960 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 197,983 |
| US States by Borders in 30 Seconds | 0 | - | 4.76 | 2,359,109 |
| 10 Closest Megacities to New York City | 0 | - | 4.54 | 54,258 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.65 | 1,227,332 |
| US State Capitals by Proximity in 30 Seconds | 0 | - | 4.18 | 119,607 |
| US State Capitals by First Two Letters in 45 seconds | 0 | - | 4.06 | 55,861 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.55 | 30,140 |
| U.S State Capitals on the Sea | 0 | - | 4.52 | 24,962 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.49 | 28,998 |
| Boroughs of New York City | 0 | - | 4.44 | 76,326 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 99,909 |
| The Only American Country ... | 0 | - | 4.94 | 108,781 |
| Belize Country Quiz | 0 | - | 4.88 | 18,540 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 306,020 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 64,556 |
| U.S. State Border Crossings | 0 | - | 4.96 | 81,375 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.82 | 32,363 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.60 | 30,860 |
| Win the U.S. Presidential Election | 0 | - | 4.79 | 497,457 |
| Movies by State Quiz | 0 | - | 4.23 | 39,284 |
| U.S Cities by African-American Population | 0 | - | 4.40 | 82,483 |
| Important Places in U.S. History | 0 | - | 4.23 | 36,361 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 230,693 |
| U.S. Suburbs Quiz | 0 | - | 4.45 | 17,553 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 80,281 |
| Brazil States Map Quiz | 0 | - | 4.83 | 38,878 |
| Europe Map Quiz | 0 | - | 5.00 | 4,251,023 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 217,021 |
| Largest United States Airlines | 0 | - | 4.38 | 51,797 |
| States of Brazil | 0 | - | 4.96 | 67,117 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.89 | 38,622 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 130,414 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 68,761 |
| 500 Biggest US Cities | 0 | - | 4.84 | 96,061 |
| ALL California Cities | 0 | - | 4.33 | 38,777 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 114,561 |
| Top 10 American Countries by Coastline | 0 | - | 4.95 | 82,823 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.87 | 67,111 |
| Biggest Trading Partners - US | 0 | - | 4.57 | 91,585 |
| Colombia Country Quiz | 0 | - | 4.92 | 34,448 |
| Canada Country Quiz | 0 | - | 4.49 | 120,336 |
| Canada Cities Map Quiz | 0 | - | 4.65 | 108,714 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.44 | 50,962 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.76 | 36,763 |
| Cities by Picture #2 | 0 | - | 4.22 | 32,122 |
| U.S. States by Clue #1 | 0 | - | 4.46 | 32,947 |
| U.S. States with More Cows than People | 0 | - | 4.58 | 39,227 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 61,793 |
| Events by U.S. State #2 | 0 | - | 4.25 | 17,760 |
| U.S. States with Spanish Names | 0 | - | 4.48 | 66,919 |
| U.S. States with Exactly One Major Pro Sports Team | 0 | - | 3.87 | 16,957 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.54 | 60,234 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.79 | 57,963 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.44 | 39,190 |
| U.S. State Capital Etymology | 0 | - | 4.51 | 34,219 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.72 | 32,145 |
| Countries Bordering Brazil | 0 | - | 4.96 | 123,149 |
| Most-Visited Countries by Canadians | 0 | - | 4.79 | 37,811 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 44,819 |
| Mexico Country Quiz | 0 | - | 4.48 | 65,870 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,333,445 |
| Oceania Map Quiz | 0 | - | 4.97 | 561,923 |
| Africa Map Quiz | 0 | - | 5.00 | 1,923,796 |
