| Countries of Europe by Population | 0 | - | 4.98 | 180,495 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,813 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,683 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,697 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,174 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,741 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,385 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,031 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,628 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,444,403 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,002 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,238 |
| Countries with Megacities | 0 | - | 4.99 | 262,301 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,071 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,108 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,380 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,158 |
| Biggest Cities in the World | 0 | - | 4.91 | 797,691 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,824 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,631 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,587 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,779 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,335 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,456 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,746 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,284 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,657 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,147 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,394 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,648 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,381 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,971 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,714 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 56,678 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,925 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,011 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,522 |
| Biggest Cities in the United States | 0 | - | 4.94 | 977,062 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,844 |
| North American Sports Cities | 0 | - | 4.83 | 172,253 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,289 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,494 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,824 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,240 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,547 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,330 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,801 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,073 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,236 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,318 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,226 |
| Largest City by Island | 0 | - | 4.87 | 71,782 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,872 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,812 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,361 |
| Megacities on a World Map | 0 | - | 4.98 | 254,032 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 577,595 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,289 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,833 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,438 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,220 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,858 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,178 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,140 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,641 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,212 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,492 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,163 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,837 |
| Capitals of 2018 FIFA World Cup Teams | 0 | - | 4.67 | 30,916 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,865 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,020 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,144 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,838 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,034 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,800 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,958 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,192 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,255 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,887 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,657 |
| Most Populous Islands | 0 | - | 4.80 | 122,863 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,290 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,516 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,787 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,180 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,357 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,375 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,860 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,481 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,120 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,644 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,151 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,469 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,615 |
| Boundary Waters | 0 | - | 4.92 | 88,424 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,122 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,001 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,594 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,482 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,068 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,949 |
| Biggest City by Region | 0 | - | 4.50 | 36,168 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,095 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,151 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,163 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,260 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,170 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,339 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,215 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,320 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,692 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,662 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,130 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,393 |
| Big 4 Sports Championship Cities | 0 | - | 4.43 | 120,060 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,614 |
| Random European Capital to Country | 0 | - | 4.98 | 190,765 |
| Random European Country to Capital | 0 | - | 4.93 | 164,944 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,363 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,681 |
| Random African Capital to Country | 0 | - | 4.97 | 100,646 |
| Random African Country to Capital | 0 | - | 4.94 | 71,164 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,390,655 |
| Landlocked Countries | 0 | - | 4.99 | 419,660 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,513 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,640 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,538 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,723 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,472 |
| Population Trivia | 0 | - | 4.32 | 27,483 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,470 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 175,204 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,482 |
| Biggest Cities in Europe | 0 | - | 4.73 | 545,951 |
| Biggest Cities in History | 0 | - | 4.52 | 90,081 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 76,924 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,018 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,862 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,381 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,608 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,432 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,213 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,820 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,997 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,175 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,521 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,512 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,226 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,543 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,309 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,626 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,247 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,987 |
| Winter Olympics Hosts | 0 | - | 4.41 | 87,404 |
| World Capitals Quiz | 0 | - | 5.00 | 5,068,217 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,296 |
| Himalayan Countries | 0 | - | 4.95 | 137,735 |
| Andean Countries | 0 | - | 4.95 | 84,081 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,322 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,852 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,953 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,435 |
| Danube Countries | 0 | - | 4.97 | 71,734 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,657 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,133 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,782 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,863 |
| European Landlocked Countries | 0 | - | 4.99 | 146,857 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,230 |
| Countries with the Most Species | 0 | - | 4.99 | 102,998 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,391 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,455 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,617 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,365 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,042 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,435 |
| Countries in the Alps | 0 | - | 4.87 | 117,810 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,213 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,526 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,466 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,234 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,192 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,775 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,368 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,260 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,018 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,624 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,522 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,368 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,987 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,255 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,273 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,338 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,112 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,621 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,645 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,707 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,422 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,038 |
