| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,210 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 171,961 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,725 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,563 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,035 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,556 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,284 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,659 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,118 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,351 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,591 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,605 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,285 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,432 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,675,931 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,673 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 71,925 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,425 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,817 |
| Countries Bordering Brazil | 0 | - | 4.96 | 130,880 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,652 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,205 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,744 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,686 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,789 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,665 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,884 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,753 |
| Cuba Country Quiz | 0 | - | 4.69 | 51,124 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,318 |
| Jamaica Country Quiz | 0 | - | 4.58 | 34,827 |
| Belize Country Quiz | 0 | - | 4.85 | 20,778 |
| US States Quiz | 0 | - | 5.00 | 16,676,336 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,027 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,453 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,830 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 322,959 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,496 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 239,902 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,310 |
| Name the U.S. National Parks | 0 | - | 4.85 | 57,279 |
| States of Mexico | 0 | - | 4.95 | 172,995 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 94,659 |
| South American Cities on the Map | 0 | - | 4.57 | 35,223 |
| 1M Cities by Proximity - United States | 0 | - | 4.55 | 149,583 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.73 | 40,538 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 32,760 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,291 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,260 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,699 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,219 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,262 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,480 |
| Pixelated United States Map | 0 | - | 4.89 | 93,271 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,562 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,188 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,247 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,466 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,727 |
| U.S. States By Population | 0 | - | 4.92 | 152,239 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,230 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,762 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,432 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,696 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,776 |
| U.S. States with the Highest Population Density | 0 | - | 4.47 | 68,261 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,360 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 376,962 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,849 |
| Countries with Megacities | 0 | - | 4.99 | 246,120 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,760 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,726 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,226 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,659 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,086 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,119 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,658 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,580 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,142 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 137,580 |
| Random U.S. City to State | 0 | - | 4.45 | 75,186 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,100 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,254 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,247 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,364 |
| Mexico Country Quiz | 0 | - | 4.49 | 71,914 |
| Barbados Country Quiz | 0 | - | 4.78 | 19,632 |
| Antigua and Barbuda Country Quiz | 0 | - | 4.66 | 21,887 |
| Dominican Republic Country Quiz | 0 | - | 4.61 | 23,192 |
| Mexico Cities Map Quiz | 0 | - | 4.77 | 33,300 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 100,950 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,753 |
| U.S. States with the Most Immigrants | 0 | - | 4.84 | 81,853 |
| US States with an Empty Map | 0 | - | 5.00 | 618,033 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,520 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,439 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,767 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,022 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,712 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,657 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,739 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,387 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,475 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,141 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,422 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,376 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,443 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,621 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,536 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,298 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,364 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,179 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,379 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,926 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,038 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,622 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,536 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,230 |
| Biggest Cities in the United States | 0 | - | 4.93 | 964,870 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,431 |
| Name a City - European Countries | 0 | - | 4.92 | 64,254 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,277 |
| Asia Capitals Quiz | 0 | - | 4.98 | 684,716 |
| Saint Kitts and Nevis Country Quiz | 0 | - | 4.57 | 18,598 |
| Trinidad and Tobago Country Quiz | 0 | - | 4.61 | 21,994 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,414 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,771 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,541 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 90,923 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,503 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,499 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,259 |
| Cities in U.S. History #1 | 0 | - | 4.25 | 37,504 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 245,729 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 113,449 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 38,883 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,633 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,484 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 31,892 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,334 |
| Boroughs of New York City | 0 | - | 4.47 | 84,052 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 31,865 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,170 |
| Flags of North and South America | 0 | - | 4.99 | 365,294 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,541 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,313 |
| U.S. States with the Fewest Borders | 0 | - | 4.77 | 112,955 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,217 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 34,920 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,025 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,081 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,145 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,738 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,271 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,458 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,216 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,174 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,662 |
| Largest City by Island | 0 | - | 4.87 | 70,930 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,183 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,376 |
| Biggest European Cities by Century | 0 | - | 4.98 | 128,674 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,947 |
| Megacities on a World Map | 0 | - | 4.98 | 250,100 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,705 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,728 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,549 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,448 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 166,971 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,281 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,130 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,174 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,493 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,475 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,705 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,079 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,091 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,232 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,629 |
| ALL California Cities | 0 | - | 4.36 | 42,789 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,377 |
| Europe Capital to Country | 0 | - | 4.99 | 247,254 |
| Asia Capital to Country | 0 | - | 4.96 | 125,601 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,260 |
| European Capitals by Map | 0 | - | 4.99 | 135,888 |
| African Capitals by Map | 0 | - | 4.99 | 132,030 |
| Asian Capitals by Map | 0 | - | 4.98 | 60,945 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,058 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,517 |
| European Coastal Capitals | 0 | - | 4.95 | 89,627 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,138 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,319 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,504 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,368 |
| U.S. State Capital Etymology | 0 | - | 4.50 | 36,769 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,301 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.63 | 33,828 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 163,980 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 168,947 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,458 |
