| South America Capitals Quiz | 0 | - | 5.00 | 477,155 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,376 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,056 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,277 |
| States of Brazil | 0 | - | 4.98 | 86,359 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,424 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,308 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,371 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,336 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,002 |
| South American Cities on the Map | 0 | - | 4.57 | 35,239 |
| Brazil Country Quiz | 0 | - | 4.52 | 101,074 |
| Brazil Cities Map Quiz | 0 | - | 4.62 | 36,364 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,596 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,895 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,956 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,818 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,969 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,817 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,585 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,935 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,649 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,325 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,718 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,383 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,770 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,936 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,239 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,435 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,703 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,751 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,465 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,517 |
| Countries that Beat Brazil | 0 | - | 4.49 | 67,869 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,743 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,547 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,080 |
| Countries with Megacities | 0 | - | 4.99 | 246,690 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,013 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,872 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,433 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,792 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,151 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,334 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,903 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,058 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,519 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,876 |
| Argentina Country Quiz | 0 | - | 4.53 | 57,077 |
| Peru Country Quiz | 0 | - | 4.54 | 48,295 |
| Chile Country Quiz | 0 | - | 4.75 | 39,717 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,100 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,804 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,869 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,853 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,461 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,569 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,234 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,621 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,624 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,837 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,823 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,970 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,464 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,498 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,536 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,556 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,040 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,147 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,725 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,661 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,500 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,347 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,719 |
| Name a City - European Countries | 0 | - | 4.92 | 64,368 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,044 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,731 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,328 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,784 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,133 |
| Which South American Country? | 0 | - | 4.69 | 51,719 |
| Belize Country Quiz | 0 | - | 4.85 | 20,802 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,037 |
| Flags of North and South America | 0 | - | 4.99 | 366,980 |
| U.S. States with the Highest Population Density | 0 | - | 4.47 | 68,272 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,188 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,126 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,297 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,891 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,376 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,560 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,280 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,405 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,822 |
| Largest City by Island | 0 | - | 4.87 | 71,019 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,375 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,521 |
| Biggest European Cities by Century | 0 | - | 4.98 | 142,904 |
| Megacities on a World Map | 0 | - | 4.98 | 250,888 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,783 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,851 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,972 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,687 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,127 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,434 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,263 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,244 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,590 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,550 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,788 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,197 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,329 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,782 |
| Europe Capital to Country | 0 | - | 4.99 | 247,616 |
| Asia Capital to Country | 0 | - | 4.96 | 125,724 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,425 |
| European Capitals by Map | 0 | - | 4.99 | 136,217 |
| African Capitals by Map | 0 | - | 4.99 | 132,123 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,114 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,160 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,588 |
| European Coastal Capitals | 0 | - | 4.95 | 89,726 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,176 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,724 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,738 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,411 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,090 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,068 |
| Venezuela Country Quiz | 0 | - | 4.50 | 30,387 |
| Paraguay Country Quiz | 0 | - | 4.53 | 25,076 |
| Bolivia Country Quiz | 0 | - | 4.63 | 26,026 |
| Ecuador Country Quiz | 0 | - | 4.60 | 31,600 |
| Suriname Country Quiz | 0 | - | 4.60 | 19,666 |
| Guyana Country Quiz | 0 | - | 4.49 | 22,585 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,747 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,172 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,652 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,720 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,367 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,084 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,129 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,919 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,996 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,470 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,289 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,559 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,482 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,284 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,577 |
| Official Cities in the UK | 0 | - | 4.89 | 280,458 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 94,711 |
| 1M Cities by Proximity - United States | 0 | - | 4.56 | 149,681 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 40,589 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 32,793 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,794 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,649 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,398 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,090 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,164 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,691 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,426 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,757 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,321 |
| The Only American Country ... | 0 | - | 4.92 | 120,734 |
| US States Quiz | 0 | - | 5.00 | 16,696,594 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,225 |
| Most Populous Islands | 0 | - | 4.79 | 121,969 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,199 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,401 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,606 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,840 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,943 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,527 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,111 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,432 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,553 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,259 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,221 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,693 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,607 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,769 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,162 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,182 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 137,658 |
| Random U.S. City to State | 0 | - | 4.45 | 75,307 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 144,899 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,182 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,188 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,015 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,810 |
| Random European Capital to Country | 0 | - | 4.98 | 189,175 |
| Random European Country to Capital | 0 | - | 4.92 | 147,430 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,365 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,380 |
| Random African Capital to Country | 0 | - | 4.97 | 99,721 |
| Random African Country to Capital | 0 | - | 4.94 | 70,227 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,657 |
| Melbourne Suburbs | 0 | - | 4.84 | 51,760 |
| Central American Countries | 0 | - | 4.98 | 155,014 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,641 |
