| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,553 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 177,917 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,720 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,157 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,857 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,717 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,622 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,564 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,018 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,981 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,473 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,407 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,099 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,870 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,801 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,698,055 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,922 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,389 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,602 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,295 |
| Countries Bordering Brazil | 0 | - | 4.96 | 132,216 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,788 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,845 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,322 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,306 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,936 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,627 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,821 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,811 |
| Cuba Country Quiz | 0 | - | 4.70 | 51,735 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,797 |
| Jamaica Country Quiz | 0 | - | 4.58 | 35,232 |
| Belize Country Quiz | 0 | - | 4.85 | 21,077 |
| US States Quiz | 0 | - | 5.00 | 16,985,938 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,514 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,912 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,939 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,020 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,332 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,276 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,547 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,432 |
| States of Mexico | 0 | - | 4.96 | 178,071 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,579 |
| South American Cities on the Map | 0 | - | 4.52 | 35,543 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 151,763 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,178 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,294 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,351 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,474 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,390 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,599 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,070 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,975 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 335,165 |
| Pixelated United States Map | 0 | - | 4.88 | 94,769 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,006 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,211 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,231 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,282 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,300 |
| U.S. States By Population | 0 | - | 4.92 | 154,091 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,164 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,854 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,820 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,518 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,059 |
| U.S. States with the Highest Population Density | 0 | - | 4.47 | 68,476 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,453,396 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,306 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,011 |
| Countries with Megacities | 0 | - | 4.99 | 266,849 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,730 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,036 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,045 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,164 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,058 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,105 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,156 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,995 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,524 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 55,399 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,985 |
| Random U.S. City to State | 0 | - | 4.45 | 76,836 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,087 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,142 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,869 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,580 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,948 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,727 |
| Barbados Country Quiz | 0 | - | 4.78 | 19,843 |
| Antigua and Barbuda Country Quiz | 0 | - | 4.68 | 22,197 |
| Dominican Republic Country Quiz | 0 | - | 4.61 | 23,577 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,409 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,375 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,998 |
| US States with an Empty Map | 0 | - | 5.00 | 628,283 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,990 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,231 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,112 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,396 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,284 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,945 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,610 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,866 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,172 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,564 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,887 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,871 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,245 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,395 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,761 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,724 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,208 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,422 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,910 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,582 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,660 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,175 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,352 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,197 |
| Biggest Cities in the United States | 0 | - | 4.94 | 986,366 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,897 |
| Name a City - European Countries | 0 | - | 4.90 | 66,106 |
| Africa Capitals Quiz | 0 | - | 4.99 | 743,292 |
| Asia Capitals Quiz | 0 | - | 4.98 | 698,375 |
| Saint Kitts and Nevis Country Quiz | 0 | - | 4.57 | 18,841 |
| Grenada Country Quiz | 0 | - | 4.62 | 19,005 |
| Trinidad and Tobago Country Quiz | 0 | - | 4.61 | 22,276 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,442 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,799 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,427 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,773 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,179 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,684 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,487 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,510 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,774 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 114,581 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,128 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,856 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,780 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,209 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,436 |
| Boroughs of New York City | 0 | - | 4.47 | 85,289 |
| El Salvador Country Quiz | 0 | - | 4.63 | 31,877 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 32,334 |
| South America Map Quiz | 0 | - | 5.00 | 1,556,087 |
| Flags of North and South America | 0 | - | 4.99 | 376,618 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,929 |
| Longest U.S. State Borders | 0 | - | 4.69 | 40,102 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 114,191 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,363 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,116 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,342 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,886 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,278 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,609 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,714 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,847 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,179 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,521 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,584 |
| Largest City by Island | 0 | - | 4.87 | 72,406 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,396 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,638 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,109 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,531 |
| Megacities on a World Map | 0 | - | 4.98 | 256,728 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,739 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,613 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,461 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,144 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,602 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,745 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,842 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,492 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,166 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,493 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,841 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,727 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,718 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,407 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,980 |
| ALL California Cities | 0 | - | 4.37 | 43,225 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,490 |
| Europe Capital to Country | 0 | - | 4.99 | 251,940 |
| Asia Capital to Country | 0 | - | 4.96 | 127,333 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,889 |
| European Capitals by Map | 0 | - | 4.99 | 141,947 |
| African Capitals by Map | 0 | - | 4.99 | 142,012 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,861 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,805 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,124 |
| European Coastal Capitals | 0 | - | 4.95 | 91,254 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,156 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,432 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,649 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,135 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 37,086 |
