| US States Quiz | 0 | - | 5.00 | 14,549,276 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 337,899 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 99,269 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 94,930 |
| 10 Southernmost U.S. States | 0 | - | 4.84 | 97,957 |
| U.S. States with Short Names | 0 | - | 4.87 | 128,126 |
| U.S. States that Start with M | 0 | - | 4.91 | 148,983 |
| U.S. States By Population | 0 | - | 4.90 | 129,105 |
| U.S. States that Start with N | 0 | - | 4.95 | 154,123 |
| U.S. States with Longest Names | 0 | - | 4.84 | 35,402 |
| U.S. States with a Unique First Letter | 0 | - | 4.95 | 76,919 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 57,794 |
| The Only Remaining U.S. State . . . | 0 | - | 4.94 | 53,913 |
| U.S. States with the Longest International Borders | 0 | - | 4.81 | 39,778 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 70,193 |
| Louisiana Purchase with a Map | 0 | - | 4.94 | 35,373 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 114,743 |
| US States with an Empty Map | 0 | - | 5.00 | 547,901 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 171,065 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 148,298 |
| Name a Valid U.S. State #1 | 0 | - | 4.95 | 182,289 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 80,060 |
| Top 10 Most Native American U.S. States | 0 | - | 4.84 | 70,221 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 79,061 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.85 | 38,742 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.89 | 88,267 |
| U.S. States with the Most Immigrants | 0 | - | 4.86 | 72,565 |
| New England States | 0 | - | 4.53 | 52,336 |
| US States by Land Area | 0 | - | 4.59 | 48,157 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.52 | 35,971 |
| Add a Letter - Make a U.S. State | 0 | - | 4.76 | 75,889 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 50,597 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.78 | 36,946 |
| 10 Easternmost U.S. States | 0 | - | 4.54 | 52,642 |
| The Only U.S. State ... #1 | 0 | - | 4.55 | 82,066 |
| Most-Visited U.S. Cities | 0 | - | 4.87 | 70,967 |
| Every U.S. Metro Area on a Map | 0 | - | 4.96 | 61,782 |
| Total United States Immigration by Country | 0 | - | 4.89 | 95,779 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.95 | 181,649 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.83 | 53,972 |
| Longest U.S. State Borders | 0 | - | 4.62 | 33,718 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.66 | 59,277 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.74 | 53,746 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.76 | 52,652 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 48,934 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 91,813 |
| Countries that Visit the United States the Most | 0 | - | 4.95 | 77,437 |
| Pixelated United States Map | 0 | - | 4.91 | 81,168 |
| U.S. State Superlatives #1 | 0 | - | 4.45 | 74,964 |
| U.S. State Superlatives #2 | 0 | - | 4.51 | 37,050 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.34 | 70,311 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.49 | 20,400 |
| Flyover States | 0 | - | 4.51 | 27,834 |
| U.S. States With Double Letters | 0 | - | 4.67 | 3,958 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.29 | 57,300 |
| U.S. States by Borders | 0 | - | 4.59 | 26,059 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.45 | 64,495 |
| Most Guessed U.S. Cities | 0 | - | 4.90 | 90,225 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.82 | 60,453 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 123,207 |
| Countries that Beat the United States | 0 | - | 4.92 | 143,410 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.95 | 269,024 |
| 10 Longest Rivers in the United States | 0 | - | 4.82 | 34,609 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 455,461 |
| U.S. State Capitals Map Quiz | 0 | - | 4.91 | 123,096 |
| Hawaiian Islands Map Quiz | 0 | - | 4.88 | 20,878 |
| Great Plains States and Provinces on a Map | 0 | - | 4.94 | 37,104 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.58 | 19,705 |
| U.S. States with the Lowest HDI | 0 | - | 4.46 | 27,357 |
| Which U.S. State - Multiple Choice | 0 | - | 4.45 | 18,839 |
| Top 10 Coldest U.S. States | 0 | - | 4.91 | 99,231 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 99,753 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 56,856 |
| Capitals of Canadian Provinces | 0 | - | 4.86 | 72,937 |
| Mexico States Map Quiz | 0 | - | 4.84 | 89,311 |
| States of Mexico | 0 | - | 4.94 | 138,035 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.44 | 47,560 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.50 | 33,721 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 68,252 |
| Name a Valid U.S. State #3 | 0 | - | 4.79 | 43,501 |
| U.S. States with the Highest Population Density | 0 | - | 4.46 | 66,307 |
| Name a Valid U.S. State Capital | 0 | - | 4.82 | 48,790 |
| United States Map Quiz | 0 | - | 4.98 | 3,878,407 |
| Cartoon Versions of U.S. States | 0 | - | 4.84 | 50,877 |
| U.S. State Flags | 0 | - | 4.87 | 133,801 |
| U.S. States that Border Canada | 0 | - | 4.90 | 164,797 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 37,244 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.47 | 35,196 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.47 | 40,229 |
| Speed Capital to U.S. State | 0 | - | 4.43 | 105,372 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.53 | 36,967 |
| US States and State Capitals Quiz | 0 | - | 5.00 | 115,741 |
| Countries Closest to Canada | 0 | - | 4.90 | 183,107 |
| U.S. States with the Fewest Borders | 0 | - | 4.76 | 104,622 |
| U.S. States with the Most Borders | 0 | - | 4.57 | 60,929 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 67,500 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.52 | 58,078 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.54 | 31,626 |
| Fifty US States in One Minute | 0 | - | 4.55 | 3,211,500 |
| U.S. State Symbols | 0 | - | 4.38 | 23,586 |
| U.S. States along the Atlantic and Gulf Coast | 0 | - | 4.40 | 28,323 |
| U.S. States Without Individual Income Tax | 0 | - | 4.30 | 27,384 |
| 10 Northernmost U.S. States | 0 | - | 4.86 | 59,586 |
| Top 10 U.S. States Taller than Wide | 0 | - | 4.04 | 12,625 |
| Top 10 U.S. States Wider than Tall | 0 | - | 4.30 | 13,644 |
| Category Elimination - U.S. States #1 | 0 | - | 4.91 | 192,837 |
| U.S. Panhandles | 0 | - | 4.25 | 25,392 |
| Top 10 Happiest U.S. States | 0 | - | 4.37 | 18,792 |
| U.S. States with a Unique Last Letter | 0 | - | 4.14 | 19,387 |
| Hated U.S. States | 0 | - | 4.09 | 13,093 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 144,202 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 166,696 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.85 | 98,453 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,513,841 |
| Random U.S. States on a Map | 0 | - | 4.95 | 475,649 |
| Regions of US States | 0 | - | 4.19 | 31,354 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.39 | 28,296 |
| Top Producing U.S. States | 0 | - | 4.23 | 28,438 |
| Landmarks of U.S. States #2 | 0 | - | 4.18 | 17,739 |
| Landmarks of U.S. States #1 | 0 | - | 4.28 | 21,975 |
| U.S. States with the Highest HDI | 0 | - | 4.08 | 24,039 |
| States of Origin - American Popular Music | 0 | - | 4.17 | 9,829 |
| 1M Cities by Proximity - United States | 0 | - | 4.49 | 135,712 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.72 | 36,215 |
| Countries with American Expatriates | 0 | - | 4.59 | 40,790 |
| United States Country Quiz | 0 | - | 4.45 | 87,764 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 38,113 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 71,918 |
| U.S. National Parks Quiz | 0 | - | 4.79 | 46,151 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.87 | 50,516 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 31,398 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 121,915 |
| Events by U.S. State #1 | 0 | - | 4.41 | 21,642 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.38 | 120,415 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.58 | 129,841 |
| Random U.S. City to State | 0 | - | 4.43 | 64,978 |
| South America Capitals Quiz | 0 | - | 5.00 | 414,796 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 197,967 |
| US States by Borders in 30 Seconds | 0 | - | 4.76 | 2,358,106 |
| 10 Closest Megacities to New York City | 0 | - | 4.54 | 54,256 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.65 | 1,227,080 |
| US State Capitals by Proximity in 30 Seconds | 0 | - | 4.18 | 119,586 |
| US State Capitals by First Two Letters in 45 seconds | 0 | - | 4.06 | 55,806 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.55 | 30,134 |
| U.S State Capitals on the Sea | 0 | - | 4.52 | 24,957 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.49 | 28,994 |
| Boroughs of New York City | 0 | - | 4.44 | 76,310 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 99,886 |
| The Only American Country ... | 0 | - | 4.94 | 108,763 |
| Belize Country Quiz | 0 | - | 4.88 | 18,537 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 305,910 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 64,541 |
| U.S. State Border Crossings | 0 | - | 4.96 | 81,365 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.82 | 32,341 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.60 | 30,842 |
| Win the U.S. Presidential Election | 0 | - | 4.79 | 497,067 |
| Movies by State Quiz | 0 | - | 4.23 | 39,283 |
| U.S Cities by African-American Population | 0 | - | 4.40 | 82,476 |
| Important Places in U.S. History | 0 | - | 4.23 | 36,360 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 229,105 |
| U.S. Suburbs Quiz | 0 | - | 4.45 | 17,552 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 80,269 |
| Brazil States Map Quiz | 0 | - | 4.83 | 38,864 |
| Europe Map Quiz | 0 | - | 5.00 | 4,249,762 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 216,973 |
| Largest United States Airlines | 0 | - | 4.38 | 51,795 |
| States of Brazil | 0 | - | 4.96 | 67,065 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.89 | 38,587 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 130,366 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 68,737 |
| 500 Biggest US Cities | 0 | - | 4.84 | 96,015 |
| ALL California Cities | 0 | - | 4.33 | 38,766 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 114,512 |
| Top 10 American Countries by Coastline | 0 | - | 4.95 | 82,811 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.87 | 67,097 |
| Biggest Trading Partners - US | 0 | - | 4.57 | 91,574 |
| Colombia Country Quiz | 0 | - | 4.92 | 34,399 |
| Canada Country Quiz | 0 | - | 4.49 | 120,316 |
| Canada Cities Map Quiz | 0 | - | 4.65 | 108,696 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.44 | 50,959 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.76 | 36,763 |
| Cities by Picture #2 | 0 | - | 4.22 | 32,113 |
| U.S. States by Clue #1 | 0 | - | 4.46 | 32,942 |
| U.S. States with More Cows than People | 0 | - | 4.58 | 39,225 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 61,789 |
| Events by U.S. State #2 | 0 | - | 4.25 | 17,759 |
| U.S. States with Spanish Names | 0 | - | 4.48 | 66,902 |
| U.S. States with Exactly One Major Pro Sports Team | 0 | - | 3.87 | 16,954 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.54 | 60,225 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.79 | 57,946 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.44 | 39,185 |
| U.S. State Capital Etymology | 0 | - | 4.51 | 34,209 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.72 | 32,140 |
| Countries Bordering Brazil | 0 | - | 4.96 | 123,124 |
| Most-Visited Countries by Canadians | 0 | - | 4.79 | 37,808 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 44,812 |
| Mexico Country Quiz | 0 | - | 4.48 | 65,851 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,333,278 |
| Oceania Map Quiz | 0 | - | 4.97 | 561,704 |
| Africa Map Quiz | 0 | - | 5.00 | 1,923,419 |
