| South America Capitals Quiz | 0 | - | 5.00 | 476,743 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,310 |
| Countries Bordering Brazil | 0 | - | 4.96 | 130,888 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,248 |
| States of Brazil | 0 | - | 4.98 | 86,178 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,291 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,267 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,215 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 171,972 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,664 |
| South American Cities on the Map | 0 | - | 4.57 | 35,223 |
| Brazil Country Quiz | 0 | - | 4.52 | 100,993 |
| Brazil Cities Map Quiz | 0 | - | 4.62 | 36,351 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,563 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,689 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,794 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,670 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,889 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,758 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,455 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,835 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 322,972 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,038 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,568 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,291 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,664 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,758 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,121 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,358 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,597 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,611 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,293 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,434 |
| Countries that Beat Brazil | 0 | - | 4.49 | 67,782 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,399 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 376,992 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,850 |
| Countries with Megacities | 0 | - | 4.99 | 246,145 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,768 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,727 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,235 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,662 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,117 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,675,972 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,677 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 71,929 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,426 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,818 |
| Argentina Country Quiz | 0 | - | 4.53 | 57,030 |
| Peru Country Quiz | 0 | - | 4.54 | 48,245 |
| Chile Country Quiz | 0 | - | 4.75 | 39,689 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,025 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,715 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,663 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,742 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,391 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,478 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,142 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,433 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,384 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,456 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,630 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,555 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,302 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,371 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,192 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,383 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,929 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,043 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,625 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,542 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,230 |
| Biggest Cities in the United States | 0 | - | 4.93 | 964,919 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,448 |
| Name a City - European Countries | 0 | - | 4.92 | 64,259 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,307 |
| Asia Capitals Quiz | 0 | - | 4.98 | 684,750 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,208 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,746 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,525 |
| Which South American Country? | 0 | - | 4.69 | 51,690 |
| Belize Country Quiz | 0 | - | 4.85 | 20,779 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,196 |
| Flags of North and South America | 0 | - | 4.99 | 365,346 |
| U.S. States with the Highest Population Density | 0 | - | 4.47 | 68,261 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,027 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,081 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,147 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,743 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,277 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,461 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,218 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,185 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,669 |
| Largest City by Island | 0 | - | 4.87 | 70,932 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,194 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,383 |
| Biggest European Cities by Century | 0 | - | 4.98 | 129,930 |
| Megacities on a World Map | 0 | - | 4.98 | 250,136 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,709 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,734 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,560 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,453 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 166,974 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,286 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,136 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,174 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,498 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,476 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,709 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,087 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,236 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,636 |
| Europe Capital to Country | 0 | - | 4.99 | 247,265 |
| Asia Capital to Country | 0 | - | 4.96 | 125,604 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,270 |
| European Capitals by Map | 0 | - | 4.99 | 135,902 |
| African Capitals by Map | 0 | - | 4.99 | 132,037 |
| Asian Capitals by Map | 0 | - | 4.98 | 60,952 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,062 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,519 |
| European Coastal Capitals | 0 | - | 4.95 | 89,628 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,141 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,334 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,511 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,368 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 163,985 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 168,952 |
| Venezuela Country Quiz | 0 | - | 4.50 | 30,359 |
| Paraguay Country Quiz | 0 | - | 4.53 | 25,045 |
| Bolivia Country Quiz | 0 | - | 4.63 | 25,984 |
| Ecuador Country Quiz | 0 | - | 4.60 | 31,587 |
| Suriname Country Quiz | 0 | - | 4.60 | 19,645 |
| Guyana Country Quiz | 0 | - | 4.49 | 22,554 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,467 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 127,932 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,626 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,698 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,247 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,067 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,045 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,849 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,683 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,439 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,067 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,501 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,318 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,207 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,456 |
| Official Cities in the UK | 0 | - | 4.89 | 280,103 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 94,662 |
| 1M Cities by Proximity - United States | 0 | - | 4.55 | 149,584 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.73 | 40,539 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 32,762 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,463 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,525 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,324 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,001 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,070 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,639 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,361 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,695 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,246 |
| The Only American Country ... | 0 | - | 4.92 | 120,647 |
| US States Quiz | 0 | - | 5.00 | 16,676,983 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,038 |
| Most Populous Islands | 0 | - | 4.78 | 121,901 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,188 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,387 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,585 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,796 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,865 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,470 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,033 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,250 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,440 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,121 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,123 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,659 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,582 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,642 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,143 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,077 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 137,582 |
| Random U.S. City to State | 0 | - | 4.45 | 75,186 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 144,627 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,103 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,148 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,945 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,665 |
| Random European Capital to Country | 0 | - | 4.98 | 189,043 |
| Random European Country to Capital | 0 | - | 4.92 | 147,327 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,262 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,324 |
| Random African Capital to Country | 0 | - | 4.97 | 99,667 |
| Random African Country to Capital | 0 | - | 4.94 | 70,148 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,603 |
| Melbourne Suburbs | 0 | - | 4.84 | 51,620 |
| Central American Countries | 0 | - | 4.98 | 154,904 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,503 |
