| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,539,731 |
| US States Quiz | 0 | - | 5.00 | 14,893,721 |
| U.S. State Capitals Map Quiz | 0 | - | 4.91 | 127,061 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 89,168 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 142,391 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 70,351 |
| 500 Biggest US Cities | 0 | - | 4.88 | 99,789 |
| US States with an Empty Map | 0 | - | 5.00 | 559,440 |
| Top 10 Least Populous U.S. States | 0 | - | 4.93 | 174,137 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 151,095 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 62,129 |
| Draw All US State Borders | 0 | - | 4.99 | 95,971 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 72,246 |
| Louisiana Purchase with a Map | 0 | - | 4.95 | 36,885 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 116,793 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 29,853 |
| Great Plains States and Provinces on a Map | 0 | - | 4.94 | 38,702 |
| Name a Valid U.S. State #1 | 0 | - | 4.95 | 186,520 |
| Top 10 Most Native American U.S. States | 0 | - | 4.84 | 72,024 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 75,559 |
| Name a Valid U.S. State Capital | 0 | - | 4.82 | 49,868 |
| US States and State Capitals Quiz | 0 | - | 4.99 | 122,579 |
| Fifty US States in One Minute | 0 | - | 4.57 | 3,270,446 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.82 | 53,242 |
| US State Capitals Quiz - No Hints | 0 | - | 4.97 | 80,424 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.88 | 44,697 |
| Draw All US State Borders - Extreme | 0 | - | 4.99 | 64,980 |
| U.S. States with the Highest Population Density | 0 | - | 4.46 | 66,833 |
| Countries of Europe by Population | 0 | - | 4.98 | 129,527 |
| US States by Borders in 30 Seconds | 0 | - | 4.75 | 2,417,990 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.64 | 1,255,587 |
| Top 10 Coldest U.S. States | 0 | - | 4.91 | 101,178 |
| Top 10 Hottest U.S. States | 0 | - | 4.83 | 101,704 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 57,328 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 207,951 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 163,038 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 159,321 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.90 | 81,858 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.92 | 90,182 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.50 | 62,365 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 40,643 |
| Biggest "Saint" Cities - United States | 0 | - | 4.47 | 34,231 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.42 | 37,077 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.76 | 39,065 |
| Random U.S. City to State | 0 | - | 4.44 | 66,261 |
| U.S. State Shapes Quiz #2 | 0 | - | 4.82 | 91,324 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 52,311 |
| U.S. States that Border Canada | 0 | - | 4.90 | 166,464 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.46 | 65,257 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 61,846 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.50 | 41,045 |
| Most-Visited U.S. Cities | 0 | - | 4.87 | 74,016 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 63,763 |
| U.S. State Capitals with the Highest Elevation | 0 | - | 4.56 | 21,711 |
| U.S. State Capitals Furthest from the Sea | 0 | - | 4.47 | 25,117 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.54 | 30,380 |
| Boroughs of New York City | 0 | - | 4.45 | 77,654 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.44 | 51,153 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.75 | 36,945 |
| U.S. States with the Longest International Borders | 0 | - | 4.75 | 41,810 |
| Longest U.S. State Borders | 0 | - | 4.59 | 34,656 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.69 | 60,344 |
| U.S. States by Clue #1 | 0 | - | 4.48 | 33,162 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 49,426 |
| U.S. States with More Cows than People | 0 | - | 4.58 | 39,343 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 62,480 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.44 | 47,815 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.49 | 34,267 |
| Category Elimination - U.S. States #1 | 0 | - | 4.90 | 196,527 |
| U.S. States with Spanish Names | 0 | - | 4.48 | 68,126 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 69,994 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 44,452 |
| U.S. State Superlatives #1 | 0 | - | 4.46 | 75,737 |
| U.S. State Superlatives #2 | 0 | - | 4.51 | 37,516 |
| Sports Teams by State Quiz | 0 | - | 4.19 | 91,528 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 138,693 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 110,756 |
| ALL California Cities | 0 | - | 4.36 | 39,447 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 117,073 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.70 | 31,961 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 44,232 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 34,665 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.65 | 32,452 |
| U.S. State Capitals in the Answer | 0 | - | 4.76 | 32,060 |
| U.S. States with the Most Billionaires | 0 | - | 4.51 | 46,583 |
| U.S. States with Exactly One Major Pro Sports Team | 0 | - | 3.89 | 17,211 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,321,354 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 351,649 |
| Biggest Cities in the World | 0 | - | 4.90 | 695,858 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 93,062 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.38 | 37,628 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.23 | 93,607 |
| Cities on Interstate 95 on a Map | 0 | - | 4.50 | 21,345 |
| Cities on Interstate 90 on a Map | 0 | - | 4.43 | 28,813 |
| U.S. City Nicknames | 0 | - | 4.23 | 99,836 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 92,197 |
| Every City in Colorado on a Map | 0 | - | 4.43 | 9,631 |
| Every City in Washington State on a Map | 0 | - | 4.50 | 9,181 |
| Every City in Michigan on a Map | 0 | - | 4.43 | 6,249 |
| New York City Trivia #1 | 0 | - | 4.14 | 34,057 |
| Washington D.C. Trivia | 0 | - | 4.44 | 31,424 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 125,555 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.96 | 278,659 |
| 10 Longest Rivers in the United States | 0 | - | 4.82 | 35,268 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 19,813 |
| U.S. States by Unofficial Motto | 0 | - | 4.45 | 21,384 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 127,762 |
| Countries with Megacities | 0 | - | 4.99 | 200,038 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 173,597 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,086 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 97,140 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 65,071 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 250,835 |
| Shrinking U.S. States | 0 | - | 4.37 | 38,103 |
| 5 Largest Cities for Every Letter on Map | 0 | - | 4.98 | 42,512 |
| Three Most Populous Countries By Each Letter | 0 | - | 4.99 | 65,067 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 375,497 |
| Biggest Cities in the United States | 0 | - | 4.93 | 842,676 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 337,031 |
| Biggest Cities in Canada | 0 | - | 4.66 | 121,652 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 94,650 |
| Cities Founded by the French in North America | 0 | - | 4.52 | 38,731 |
| Name a City - U.S. States | 0 | - | 4.39 | 24,670 |
| Cities in the Dallas Metro Area on a Map | 0 | - | 4.56 | 5,952 |
| Africa Capitals Quiz | 0 | - | 4.99 | 642,472 |
| Asia Capitals Quiz | 0 | - | 4.98 | 601,046 |
| Speed Capital to U.S. State | 0 | - | 4.44 | 107,140 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.53 | 37,357 |
| Top 10 Most Remote U.S. State Capitals | 0 | - | 4.39 | 31,048 |
| U.S. State Capitals Furthest from the State Border | 0 | - | 4.24 | 13,281 |
| Miami City Trivia | 0 | - | 4.54 | 10,536 |
| All About Atlanta | 0 | - | 4.60 | 10,382 |
| Dallas City Trivia | 0 | - | 4.46 | 6,117 |
| Countries Closest to Alaska | 0 | - | 4.92 | 99,895 |
| Countries Closest to Maine | 0 | - | 4.85 | 59,554 |
| Mexico True or False? | 0 | - | 4.91 | 43,467 |
| Hawaiian Islands Map Quiz | 0 | - | 4.88 | 21,167 |
| Rivers of the United States | 0 | - | 4.92 | 57,595 |
| U.S. States with the Fewest Borders | 0 | - | 4.75 | 106,282 |
| U.S. States with the Most Borders | 0 | - | 4.56 | 61,165 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.76 | 33,502 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 31,499 |
| U.S. States by Hottest Recorded Temperature | 0 | - | 4.37 | 54,751 |
| Events by U.S. State #1 | 0 | - | 4.42 | 21,858 |
| U.S. States Richer than Their Neighbors | 0 | - | 4.46 | 25,615 |
| Top 10 U.S. States With the Most Endemic Species | 0 | - | 4.49 | 21,436 |
| U.S. States with the Most National Parks | 0 | - | 4.62 | 21,512 |
| Image to U.S State - Multiple Choice | 0 | - | 4.43 | 23,884 |
| A Superlative for Every U.S. State | 0 | - | 4.47 | 25,176 |
| U.S States with the Most Cows | 0 | - | 4.60 | 18,387 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 117,616 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,876 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 246,985 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 109,906 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 103,921 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 71,509 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 50,995 |
| Biggest City by Time Zone | 0 | - | 4.84 | 55,317 |
| Biggest City in Every Country | 0 | - | 4.98 | 80,247 |
| U.S. Cities by Hispanic Population | 0 | - | 4.27 | 24,654 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 172,345 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 93,283 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 98,367 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 66,040 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.84 | 72,635 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 519,250 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 66,243 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,762 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 60,369 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,734 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 56,082 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 108,312 |
| The Most Populous U.S. City by Category | 0 | - | 4.31 | 19,579 |
| 5 Most Populous Cities in Each Country With a Map | 0 | - | 4.95 | 31,667 |
| U.S. Cities Chain | 0 | - | 4.04 | 18,482 |
| California Cities starting with SAN or SANTA | 0 | - | 4.25 | 11,086 |
| Word Scramble - U.S. Cities | 0 | - | 4.07 | 18,633 |
| Name a City - European Countries | 0 | - | 4.95 | 52,886 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.40 | 11,671 |
| Richest Metro Areas in the U.S. | 0 | - | 4.35 | 27,147 |
| Word Scramble - U.S. State Capitals | 0 | - | 4.28 | 50,998 |
| Snowiest U.S. State Capitals | 0 | - | 4.43 | 27,286 |
| US State Capitals - One Minute Sprint | 0 | - | 4.08 | 165,639 |
| Hottest U.S. State Capitals | 0 | - | 4.76 | 21,848 |
| Coldest U.S. State Capitals | 0 | - | 4.57 | 19,019 |
| U.S. State Capital Superlatives - Top 2 | 0 | - | 4.37 | 19,859 |
| Bay Area or Los Angeles Suburb | 0 | - | 4.43 | 13,860 |
| Tourist Attractions by U.S. State | 0 | - | 4.45 | 60,462 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.54 | 60,925 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.79 | 58,912 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 39,536 |
| State Quiz - Florida | 0 | - | 4.44 | 56,294 |
| State Quiz - Texas | 0 | - | 4.44 | 56,745 |
| State Quiz - Virginia | 0 | - | 4.51 | 33,260 |
| State Quiz - New York | 0 | - | 4.47 | 37,080 |
| State Quiz - Washington | 0 | - | 4.45 | 32,634 |
| State Quiz - California | 0 | - | 4.65 | 57,186 |
| State Quiz - Alaska | 0 | - | 4.44 | 37,839 |
| State Quiz - New Jersey | 0 | - | 4.45 | 31,684 |
| State Quiz - Pennsylvania | 0 | - | 4.49 | 42,806 |
