| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,698,555 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,418 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,970 |
| US States Quiz | 0 | - | 5.00 | 16,993,153 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,839 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,056 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,024 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,582 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,434 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,169 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,902 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,624 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 178,073 |
| Draw All US State Borders | 0 | - | 4.99 | 140,713 |
| US States with an Empty Map | 0 | - | 5.00 | 628,597 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 97,101 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,278 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,195 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,945 |
| Random U.S. City to State | 0 | - | 4.45 | 76,902 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,104 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 50,096 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,509 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,400 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,816 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,390 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,021 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,690 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,848 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,835 |
| Boroughs of New York City | 0 | - | 4.47 | 85,319 |
| Washington D.C. Trivia | 0 | - | 4.45 | 39,124 |
| U.S. States that Border Canada | 0 | - | 4.91 | 186,643 |
| U.S. Cities With The Most Top Census Appearances | 0 | - | 4.68 | 11,391 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,965 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,991 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,309 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,951 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,867 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,555,355 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,427 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,576 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,150 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,733 |
| ALL California Cities | 0 | - | 4.37 | 43,234 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,498 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,407 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,219 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,812 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 335,329 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,453,968 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,449 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,120 |
| Countries with Megacities | 0 | - | 4.99 | 267,043 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,816 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,117 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,134 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,226 |
| 5 Largest Cities for Every Letter on Map | 0 | - | 4.97 | 51,957 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,434 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,432 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,210 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,165 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,998 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,533 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 55,407 |
| U.S. City Nicknames | 0 | - | 4.25 | 103,847 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,975 |
| Every City in Arizona on a Map | 0 | - | 4.51 | 9,585 |
| Every City in Colorado on a Map | 0 | - | 4.49 | 13,537 |
| Every City in Washington State on a Map | 0 | - | 4.54 | 14,250 |
| Every City in Alabama on a Map | 0 | - | 4.74 | 8,654 |
| Every City in Michigan on a Map | 0 | - | 4.44 | 9,735 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,641 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,868 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,312 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,418 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 37,092 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,709 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.64 | 34,073 |
| New York City Trivia #1 | 0 | - | 4.08 | 35,794 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,208 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,393 |
| US States by Borders in 30 Seconds | 0 | - | 4.68 | 2,692,838 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.70 | 1,398,331 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,425 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,316 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,009 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,638 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,889 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,209 |
| Shrinking U.S. States | 0 | - | 4.38 | 40,418 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,604 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,921 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,934 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,729 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,368 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,441 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,922 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,774 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,235 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,567 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,950 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,611 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,709 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,203 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,381 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,317 |
| 5 Most Populous Cities in Each Country With a Map | 0 | - | 4.96 | 40,023 |
| Biggest Cities in the United States | 0 | - | 4.94 | 986,873 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,995 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,879 |
| Name a City - European Countries | 0 | - | 4.90 | 66,158 |
| Cities in the Dallas Metro Area on a Map | 0 | - | 4.63 | 8,734 |
| Africa Capitals Quiz | 0 | - | 4.99 | 743,637 |
| Asia Capitals Quiz | 0 | - | 4.98 | 698,729 |
| U.S. State Capitals with the Highest Elevation | 0 | - | 4.56 | 22,668 |
| Top 10 Most Remote U.S. State Capitals | 0 | - | 4.40 | 32,303 |
| U.S. State Capitals Furthest from the Sea | 0 | - | 4.49 | 26,108 |
| Miami City Trivia | 0 | - | 4.60 | 11,268 |
| All About Atlanta | 0 | - | 4.60 | 11,292 |
| Dallas City Trivia | 0 | - | 4.46 | 6,868 |
| Countries Closest to Alaska | 0 | - | 4.93 | 125,122 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,587 |
| Rivers of the United States | 0 | - | 4.93 | 66,656 |
| U.S. States with the Most Drug Overdose Deaths | 0 | - | 4.10 | 26,896 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,838 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,473 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,195 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,331 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,351 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,057 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,739 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,893 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,370 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,479 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,491 |
| California Cities starting with SAN or SANTA | 0 | - | 4.33 | 18,594 |
| Word Scramble - U.S. Cities | 0 | - | 4.13 | 19,931 |
| Word Scramble - U.S. State Capitals | 0 | - | 4.27 | 62,661 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,673 |
| US State Capitals - One Minute Sprint | 0 | - | 4.05 | 184,765 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,314 |
| Coldest U.S. State Capitals | 0 | - | 4.63 | 23,938 |
| U.S. State Capitals with the Least Precipitation | 0 | - | 4.41 | 23,301 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.45 | 52,896 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.75 | 38,542 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,433 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,942 |
| Longest U.S. State Borders | 0 | - | 4.69 | 40,124 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.64 | 66,073 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,563 |
| U.S. States by Clue #1 | 0 | - | 4.51 | 39,399 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,138 |
| U.S. States with More Cows than People | 0 | - | 4.74 | 47,873 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 66,727 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,811 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 52,986 |
| U.S. States with Spanish Names | 0 | - | 4.49 | 88,255 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,386 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,291 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,682 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,761 |
| U.S. States with the Highest Population Density | 0 | - | 4.47 | 68,494 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,389 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,901 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,337 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,658 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,745 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,883 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,191 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,572 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,643 |
| Largest City by Island | 0 | - | 4.87 | 72,443 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,419 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,679 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,133 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,538 |
| Megacities on a World Map | 0 | - | 4.98 | 256,873 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,759 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,656 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,653 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,367 |
| 50 Biggest Cities in 1920 on a World Map | 0 | - | 4.99 | 78,494 |
| 500 Biggest Cities in the World on a Map | 0 | - | 4.97 | 123,939 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 35,265 |
| 1M Cities in Squares of the World Map | 0 | - | 4.83 | 35,276 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,642 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,793 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,878 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,514 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,191 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,511 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,853 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,758 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,693 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,447 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,045 |
| Europe Capital to Country | 0 | - | 4.99 | 252,040 |
| Asia Capital to Country | 0 | - | 4.96 | 127,379 |
