| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,689,046 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,780 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,559 |
| US States Quiz | 0 | - | 5.00 | 16,866,652 |
| U.S. Cities With The Most Top Census Appearances | 0 | - | 4.68 | 11,161 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 144,117 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,988 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,228 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,220 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,355 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,745 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,757 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,173 |
| US States with an Empty Map | 0 | - | 5.00 | 624,313 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,567 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 175,431 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,069 |
| Draw All US State Borders | 0 | - | 4.99 | 137,390 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,972 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,137 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,665 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,924 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,427 |
| 50 Biggest Cities in 1920 on a World Map | 0 | - | 4.99 | 77,639 |
| Random U.S. City to State | 0 | - | 4.45 | 76,271 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,717 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,401 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,804 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,874 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,959 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,808 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,782 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,265 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,787 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,414 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,129 |
| U.S. States that Border Canada | 0 | - | 4.91 | 184,811 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,769 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,751 |
| Boroughs of New York City | 0 | - | 4.47 | 84,579 |
| Washington D.C. Trivia | 0 | - | 4.45 | 39,015 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,537,853 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,715 |
| Category Elimination - U.S. States #2 | 0 | - | 4.83 | 134,138 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,747 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,896 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,108 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,979 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,477 |
| ALL California Cities | 0 | - | 4.37 | 43,041 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,450 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,428 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,734 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,220 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 36,922 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,542 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.64 | 33,967 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,507 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 331,816 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,745 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,141 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,195 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,371 |
| Countries with Megacities | 0 | - | 4.99 | 262,975 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,205 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,182 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,505 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,221 |
| 5 Largest Cities for Every Letter on Map | 0 | - | 4.97 | 51,390 |
| Biggest Cities in the World | 0 | - | 4.91 | 798,319 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,052 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,985 |
| U.S. City Nicknames | 0 | - | 4.25 | 103,670 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,973 |
| Every City in Arizona on a Map | 0 | - | 4.51 | 9,357 |
| Every City in Colorado on a Map | 0 | - | 4.48 | 13,252 |
| Every City in Washington State on a Map | 0 | - | 4.54 | 13,885 |
| Every City in Alabama on a Map | 0 | - | 4.73 | 8,483 |
| Every City in Michigan on a Map | 0 | - | 4.44 | 9,468 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,127 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,124 |
| New York City Trivia #1 | 0 | - | 4.08 | 35,714 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,388 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,162 |
| US States by Borders in 30 Seconds | 0 | - | 4.67 | 2,680,270 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.70 | 1,391,022 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,120 |
| Shrinking U.S. States | 0 | - | 4.38 | 40,336 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 73,084 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,467 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,809 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,965 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,534 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,949 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,812 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,375 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 55,164 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,163 |
| Biggest Cities in the United States | 0 | - | 4.94 | 977,878 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,039 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,826 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,395 |
| Name a City - U.S. States | 0 | - | 4.41 | 26,702 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,759 |
| Cities in the Dallas Metro Area on a Map | 0 | - | 4.63 | 8,606 |
| Africa Capitals Quiz | 0 | - | 4.99 | 737,295 |
| Asia Capitals Quiz | 0 | - | 4.98 | 692,506 |
| U.S. State Capitals with the Highest Elevation | 0 | - | 4.56 | 22,622 |
| Top 10 Most Remote U.S. State Capitals | 0 | - | 4.40 | 32,233 |
| U.S. State Capitals Furthest from the Sea | 0 | - | 4.49 | 26,063 |
| Miami City Trivia | 0 | - | 4.60 | 11,226 |
| All About Atlanta | 0 | - | 4.60 | 11,250 |
| Dallas City Trivia | 0 | - | 4.46 | 6,831 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,284 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,082 |
| Mexico True or False? | 0 | - | 4.89 | 48,680 |
| Rivers of the United States | 0 | - | 4.93 | 66,167 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,788 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,797 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,781 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 52,915 |
| Events by U.S. State #1 | 0 | - | 4.43 | 22,908 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,621 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,606 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,889 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,877 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,679 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,697 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,851 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,367 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,505 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,050 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,868 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,434 |
| Biggest Cities in History | 0 | - | 4.52 | 90,113 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 77,266 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,889 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,267 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,671 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,756 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,460 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 577,900 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,814 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 59,220 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,994 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,351 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,585 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,228 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,448 |
| 5 Most Populous Cities in Each Country With a Map | 0 | - | 4.96 | 39,486 |
| California Cities starting with SAN or SANTA | 0 | - | 4.33 | 18,526 |
| Word Scramble - U.S. Cities | 0 | - | 4.13 | 19,749 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,417 |
| Name a City - European Countries | 0 | - | 4.90 | 65,338 |
| Word Scramble - U.S. State Capitals | 0 | - | 4.27 | 62,452 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,604 |
| US State Capitals - One Minute Sprint | 0 | - | 4.06 | 183,808 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,191 |
| Coldest U.S. State Capitals | 0 | - | 4.63 | 23,878 |
| U.S. State Capitals with the Least Precipitation | 0 | - | 4.41 | 23,260 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.45 | 52,792 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.74 | 38,456 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,100 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,491 |
| U.S. States by Clue #1 | 0 | - | 4.51 | 39,077 |
| U.S. States with More Cows than People | 0 | - | 4.74 | 47,734 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 66,493 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,095 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.51 | 42,133 |
| U.S. States with Spanish Names | 0 | - | 4.50 | 87,845 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 76,990 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,016 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,520 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,626 |
| U.S. States with the Highest Population Density | 0 | - | 4.47 | 68,374 |
| Countries More Populous than All Their Neighbors Combined | 0 | - | 4.93 | 38,017 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,569 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,590 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,395 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,852 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,109 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,286 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,879 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,480 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,329 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,236 |
| Largest City by Island | 0 | - | 4.87 | 71,828 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,898 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,312 |
| Megacities on a World Map | 0 | - | 4.98 | 254,390 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,318 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,882 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,389 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,566 |
| 500 Biggest Cities in the World on a Map | 0 | - | 4.97 | 122,378 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,783 |
| 1M Cities in Squares of the World Map | 0 | - | 4.81 | 34,355 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,294 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,929 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,236 |
