| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,515,887 |
| US States Quiz | 0 | - | 5.00 | 14,579,261 |
| U.S. State Capitals Map Quiz | 0 | - | 4.91 | 123,549 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 80,112 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 130,719 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 68,909 |
| 500 Biggest US Cities | 0 | - | 4.85 | 96,340 |
| US States with an Empty Map | 0 | - | 5.00 | 548,803 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 171,349 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 148,598 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.82 | 60,574 |
| U.S. States with the Longest International Borders | 0 | - | 4.81 | 39,923 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 70,343 |
| Louisiana Purchase with a Map | 0 | - | 4.94 | 35,496 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 114,923 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.90 | 28,378 |
| Great Plains States and Provinces on a Map | 0 | - | 4.94 | 37,234 |
| Name a Valid U.S. State #1 | 0 | - | 4.95 | 183,001 |
| Top 10 Most Native American U.S. States | 0 | - | 4.84 | 70,365 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 73,766 |
| Name a Valid U.S. State Capital | 0 | - | 4.82 | 48,882 |
| US States and State Capitals Quiz | 0 | - | 4.99 | 116,457 |
| Fifty US States in One Minute | 0 | - | 4.55 | 3,216,090 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 79,184 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.85 | 38,786 |
| U.S. States with the Highest Population Density | 0 | - | 4.46 | 66,326 |
| Countries of Europe by Population | 0 | - | 4.98 | 124,598 |
| US States by Borders in 30 Seconds | 0 | - | 4.76 | 2,363,368 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.65 | 1,230,139 |
| Top 10 Coldest U.S. States | 0 | - | 4.91 | 99,330 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 99,898 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 56,899 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 203,439 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 159,448 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 156,028 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.90 | 79,945 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.89 | 84,146 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.49 | 55,525 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 40,065 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 33,791 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.76 | 38,468 |
| Random U.S. City to State | 0 | - | 4.43 | 65,107 |
| U.S. State Shapes Quiz #2 | 0 | - | 4.82 | 90,542 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.93 | 51,518 |
| U.S. States that Border Canada | 0 | - | 4.90 | 164,966 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.45 | 64,555 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.43 | 61,280 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.46 | 37,640 |
| Name a City - U.S. States | 0 | - | 4.41 | 24,302 |
| Most-Visited U.S. Cities | 0 | - | 4.87 | 71,203 |
| Every U.S. Metro Area on a Map | 0 | - | 4.96 | 61,939 |
| U.S. State Capitals with the Highest Elevation | 0 | - | 4.56 | 21,585 |
| U.S. State Capitals Furthest from the Sea | 0 | - | 4.47 | 24,991 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.54 | 30,127 |
| Boroughs of New York City | 0 | - | 4.44 | 76,404 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.44 | 50,975 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.76 | 36,772 |
| Longest U.S. State Borders | 0 | - | 4.62 | 33,787 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.66 | 59,352 |
| U.S. States by Clue #1 | 0 | - | 4.46 | 32,970 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 48,981 |
| U.S. States with More Cows than People | 0 | - | 4.58 | 39,228 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 61,832 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.44 | 47,582 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.50 | 33,760 |
| Category Elimination - U.S. States #1 | 0 | - | 4.91 | 193,121 |
| U.S. States with Spanish Names | 0 | - | 4.48 | 67,017 |
| Name a Valid U.S. State #2 | 0 | - | 4.64 | 68,477 |
| Name a Valid U.S. State #3 | 0 | - | 4.79 | 43,584 |
| U.S. State Superlatives #1 | 0 | - | 4.45 | 75,003 |
| U.S. State Superlatives #2 | 0 | - | 4.51 | 37,078 |
| Sports Teams by State Quiz | 0 | - | 4.18 | 91,029 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 136,184 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 108,862 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.45 | 28,594 |
| ALL California Cities | 0 | - | 4.33 | 38,823 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 114,756 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.57 | 43,851 |
| U.S. State Capital Etymology | 0 | - | 4.51 | 34,251 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.72 | 32,176 |
| U.S. States with the Most Billionaires | 0 | - | 4.50 | 45,939 |
| U.S. States with Exactly One Major Pro Sports Team | 0 | - | 3.89 | 16,979 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,302,227 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,564 |
| Biggest Cities in the World | 0 | - | 4.89 | 678,931 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 90,422 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.37 | 36,833 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.24 | 89,253 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.80 | 51,789 |
| Cities on Interstate 95 on a Map | 0 | - | 4.54 | 20,941 |
| U.S. City Nicknames | 0 | - | 4.22 | 99,082 |
| Most Guessed U.S. Cities | 0 | - | 4.90 | 90,391 |
| Every City in Washington State on a Map | 0 | - | 4.47 | 8,386 |
| New York City Trivia #1 | 0 | - | 4.13 | 33,723 |
| Washington D.C. Trivia | 0 | - | 4.43 | 31,182 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 123,377 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.95 | 269,871 |
| 10 Longest Rivers in the United States | 0 | - | 4.82 | 34,677 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 19,717 |
| U.S. States by Unofficial Motto | 0 | - | 4.45 | 21,075 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 124,166 |
| Countries with Megacities | 0 | - | 4.99 | 194,805 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,494 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,873 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,712 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,720 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 245,099 |
| Shrinking U.S. States | 0 | - | 4.40 | 37,504 |
| 5 Largest Cities for Every Letter on Map | 0 | - | 4.98 | 41,161 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 367,453 |
| Biggest Cities in the United States | 0 | - | 4.92 | 808,711 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 320,886 |
| Biggest Cities in Canada | 0 | - | 4.67 | 119,582 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 90,874 |
| Cities Founded by the French in North America | 0 | - | 4.51 | 38,426 |
| Cities in the Dallas Metro Area on a Map | 0 | - | 4.65 | 5,441 |
| Africa Capitals Quiz | 0 | - | 4.99 | 627,616 |
| Asia Capitals Quiz | 0 | - | 4.98 | 587,798 |
| Speed Capital to U.S. State | 0 | - | 4.44 | 105,683 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.53 | 36,999 |
| Top 10 Most Remote U.S. State Capitals | 0 | - | 4.39 | 30,833 |
| U.S. State Capitals Furthest from the State Border | 0 | - | 4.23 | 13,200 |
| Miami City Trivia | 0 | - | 4.53 | 10,429 |
| All About Atlanta | 0 | - | 4.51 | 10,235 |
| Dallas City Trivia | 0 | - | 4.47 | 6,009 |
| Countries Closest to Alaska | 0 | - | 4.92 | 98,175 |
| Countries Closest to Maine | 0 | - | 4.84 | 58,333 |
| Hawaiian Islands Map Quiz | 0 | - | 4.88 | 20,897 |
| Rivers of the United States | 0 | - | 4.93 | 49,073 |
| U.S. States with the Fewest Borders | 0 | - | 4.76 | 104,737 |
| U.S. States with the Most Borders | 0 | - | 4.57 | 60,942 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 31,409 |
| U.S. States by Hottest Recorded Temperature | 0 | - | 4.40 | 54,230 |
| Events by U.S. State #1 | 0 | - | 4.41 | 21,660 |
| U.S. States Richer than Their Neighbors | 0 | - | 4.45 | 25,257 |
| Top 10 U.S. States With the Most Endemic Species | 0 | - | 4.49 | 21,302 |
| U.S. States with the Most National Parks | 0 | - | 4.60 | 20,669 |
| A Superlative for Every U.S. State | 0 | - | 4.47 | 24,613 |
| U.S States with the Most Cows | 0 | - | 4.58 | 17,628 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 116,297 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 65,370 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 243,456 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,245 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,494 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 64,423 |
| Countries by Population Range - Tile Select | 0 | - | 4.86 | 50,013 |
| Biggest City by Time Zone | 0 | - | 4.83 | 53,459 |
| Biggest City in Every Country | 0 | - | 4.97 | 77,623 |
| U.S. Cities by Hispanic Population | 0 | - | 4.26 | 24,449 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 167,417 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 90,876 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 94,582 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 61,989 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.85 | 70,241 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 508,964 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.94 | 64,273 |
| Biggest Cities in Deserts | 0 | - | 4.93 | 42,020 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 59,074 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 54,443 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 105,032 |
| The Most Populous U.S. City by Category | 0 | - | 4.36 | 14,593 |
| U.S. Cities Chain | 0 | - | 4.04 | 18,341 |
| California Cities starting with SAN or SANTA | 0 | - | 4.24 | 10,935 |
| Word Scramble - U.S. Cities | 0 | - | 4.07 | 18,335 |
| Name a City - European Countries | 0 | - | 4.95 | 51,324 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.40 | 11,581 |
| Richest Metro Areas in the U.S. | 0 | - | 4.35 | 26,720 |
| Word Scramble - U.S. State Capitals | 0 | - | 4.27 | 50,665 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.70 | 31,620 |
| Snowiest U.S. State Capitals | 0 | - | 4.43 | 27,163 |
| US State Capitals - One Minute Sprint | 0 | - | 4.08 | 162,378 |
| Hottest U.S. State Capitals | 0 | - | 4.76 | 21,555 |
| Coldest U.S. State Capitals | 0 | - | 4.57 | 18,885 |
| U.S. State Capital Superlatives - Top 2 | 0 | - | 4.37 | 19,595 |
| Bay Area or Los Angeles Suburb | 0 | - | 4.43 | 13,700 |
| Tourist Attractions by U.S. State | 0 | - | 4.46 | 60,152 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.54 | 60,282 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.79 | 58,045 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.44 | 39,219 |
| State Quiz - Florida | 0 | - | 4.43 | 55,264 |
| State Quiz - Texas | 0 | - | 4.44 | 55,714 |
| State Quiz - Virginia | 0 | - | 4.51 | 32,598 |
| State Quiz - New York | 0 | - | 4.47 | 36,134 |
| State Quiz - Washington | 0 | - | 4.45 | 32,000 |
| State Quiz - California | 0 | - | 4.66 | 55,976 |
| State Quiz - Alaska | 0 | - | 4.43 | 37,221 |
| State Quiz - Pennsylvania | 0 | - | 4.48 | 36,953 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 144,892 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 63,821 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 78,279 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 95,644 |
| Countries with the Most People Bordering Them | 0 | - | 4.95 | 74,483 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 92,597 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 64,454 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 85,508 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 108,185 |
| Biggest Cities by Language | 0 | - | 4.95 | 212,472 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 153,755 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 64,505 |
| Most Populous World Capitals | 0 | - | 4.92 | 146,662 |
