| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,384 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,385 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,205 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,596 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,346 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,730 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,388 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,778 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,255 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,437 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,714 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,766 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,477 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,525 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,476 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,921 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,065 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,530 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,878 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,061 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,023 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,341 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,787 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,912 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,976 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,836 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,976 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,823 |
| Cuba Country Quiz | 0 | - | 4.69 | 51,156 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,339 |
| Jamaica Country Quiz | 0 | - | 4.58 | 34,858 |
| Belize Country Quiz | 0 | - | 4.85 | 20,802 |
| US States Quiz | 0 | - | 5.00 | 16,698,458 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,241 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,599 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,950 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,742 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,653 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,875 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,378 |
| Name the U.S. National Parks | 0 | - | 4.86 | 58,886 |
| States of Mexico | 0 | - | 4.95 | 173,316 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 94,714 |
| South American Cities on the Map | 0 | - | 4.57 | 35,241 |
| 1M Cities by Proximity - United States | 0 | - | 4.56 | 149,690 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 40,593 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 32,796 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,437 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,452 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,837 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,343 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,309 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,916 |
| Pixelated United States Map | 0 | - | 4.89 | 93,465 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,718 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,345 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,395 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,655 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,892 |
| U.S. States By Population | 0 | - | 4.92 | 152,349 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,390 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,852 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,544 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,761 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,872 |
| U.S. States with the Highest Population Density | 0 | - | 4.47 | 68,273 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,866 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,573 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,121 |
| Countries with Megacities | 0 | - | 4.99 | 246,772 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,043 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,923 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,468 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,814 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,227 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,227 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,698 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,611 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,164 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 137,663 |
| Random U.S. City to State | 0 | - | 4.45 | 75,314 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,184 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,406 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,278 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,555 |
| Mexico Country Quiz | 0 | - | 4.49 | 71,970 |
| Barbados Country Quiz | 0 | - | 4.78 | 19,643 |
| Antigua and Barbuda Country Quiz | 0 | - | 4.66 | 21,907 |
| Dominican Republic Country Quiz | 0 | - | 4.61 | 23,210 |
| Mexico Cities Map Quiz | 0 | - | 4.77 | 33,314 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,084 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,802 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,924 |
| US States with an Empty Map | 0 | - | 5.00 | 618,758 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,697 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,573 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,921 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,105 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,817 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,886 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,869 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,465 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,582 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,248 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,631 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,646 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,876 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,835 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,999 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,474 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,505 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,561 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,568 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,045 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,153 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,735 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,666 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,506 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,479 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,748 |
| Name a City - European Countries | 0 | - | 4.92 | 64,379 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,133 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,819 |
| Saint Kitts and Nevis Country Quiz | 0 | - | 4.57 | 18,615 |
| Trinidad and Tobago Country Quiz | 0 | - | 4.61 | 22,017 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,673 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,856 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,650 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,048 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,545 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,173 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,278 |
| Cities in U.S. History #1 | 0 | - | 4.30 | 43,566 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 245,808 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 113,516 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 38,906 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,655 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,522 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 31,920 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,339 |
| Boroughs of New York City | 0 | - | 4.47 | 84,092 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 31,900 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,113 |
| Flags of North and South America | 0 | - | 4.99 | 367,093 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,574 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,379 |
| U.S. States with the Fewest Borders | 0 | - | 4.77 | 113,025 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,226 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 34,927 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,205 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,132 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,315 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,905 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,387 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,576 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,289 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,425 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,840 |
| Largest City by Island | 0 | - | 4.87 | 71,028 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,385 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,529 |
| Biggest European Cities by Century | 0 | - | 4.98 | 143,181 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,992 |
| Megacities on a World Map | 0 | - | 4.98 | 250,914 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,790 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,859 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,000 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,709 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,140 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,451 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,279 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,256 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,599 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,555 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,798 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,206 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,144 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,334 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,796 |
| ALL California Cities | 0 | - | 4.36 | 42,812 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,387 |
| Europe Capital to Country | 0 | - | 4.99 | 247,706 |
| Asia Capital to Country | 0 | - | 4.96 | 125,745 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,437 |
| European Capitals by Map | 0 | - | 4.99 | 136,232 |
| African Capitals by Map | 0 | - | 4.99 | 132,150 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,121 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,172 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,594 |
| European Coastal Capitals | 0 | - | 4.95 | 89,735 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,176 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,766 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,772 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,415 |
| U.S. State Capital Etymology | 0 | - | 4.50 | 36,787 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,329 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.63 | 33,845 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,101 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,081 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,764 |
