| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,296 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,300 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,952 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,700 |
| Countries with Megacities | 0 | - | 4.99 | 264,079 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,540 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,374 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,805 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,429 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,975 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,674 |
| Biggest Cities in the World | 0 | - | 4.91 | 799,910 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,965 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,820 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,016 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,014 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,491 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,638 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,154 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,149 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,840 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,531 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,573 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,372 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,990 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,664 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,118 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 59,996 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,186 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,703 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,775 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,778 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,882 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,276 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,257 |
| Biggest Cities in the United States | 0 | - | 4.94 | 979,687 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,456 |
| Boundary Waters | 0 | - | 4.92 | 88,515 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,210 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,183 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,582 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,531 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,492 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,144 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,764 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,660 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,575 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,016 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,252 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,422 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,940 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,872 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,756 |
| Largest City by Island | 0 | - | 4.87 | 71,972 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,078 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,080 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,649 |
| Megacities on a World Map | 0 | - | 4.98 | 254,972 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,438 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,068 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,928 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,898 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,543 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,109 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,405 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,256 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,829 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,290 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,595 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,333 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,068 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,235 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 578,819 |
| Most Populous Islands | 0 | - | 4.80 | 122,977 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,313 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,550 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,851 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,258 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,476 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,096 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,021 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,486 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,171 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,497 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,394 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,057 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,400 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,182 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.93 | 50,157 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,218 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,552 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,105 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,836 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,523,911 |
| Landlocked Countries | 0 | - | 4.99 | 421,242 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 574,595 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,667 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,932 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,547 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,772 |
| Population Trivia | 0 | - | 4.32 | 27,503 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,515 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,660 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,438 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,021 |
| Biggest City by Region | 0 | - | 4.50 | 36,255 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,170 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,955 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,579 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,581 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,959 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,210 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,366 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,323 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,540 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,435 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.99 | 101,633 |
| World Capitals Quiz | 0 | - | 5.00 | 5,078,883 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,087 |
| Himalayan Countries | 0 | - | 4.95 | 138,397 |
| Andean Countries | 0 | - | 4.93 | 84,417 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,637 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,572 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,262 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,664 |
| Danube Countries | 0 | - | 4.97 | 71,920 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,905 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,332 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,142 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,601 |
| European Landlocked Countries | 0 | - | 4.99 | 147,056 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,500 |
| Countries with the Most Species | 0 | - | 4.99 | 103,162 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,653 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,544 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,686 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,488 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,168 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,582 |
| Countries in the Alps | 0 | - | 4.87 | 118,077 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,559 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,889 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,599 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,525 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,410 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,890 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,573 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,428 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,132 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,776 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,605 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,467 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,143 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,403 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,443 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,715 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,240 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 60,806 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,936 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,566 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,886 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,164 |
| Largest Countries By Category | 0 | - | 4.97 | 158,070 |
| Countries by Countries | 0 | - | 4.96 | 63,109 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,583 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,251 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,540 |
| All Countries by Population With a Map | 0 | - | 4.98 | 109,353 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,907 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,597 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,773,241 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,651 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,828 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,439 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,468 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,803 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,243 |
| Longest International Borders | 0 | - | 4.99 | 265,070 |
| Countries with Three Borders | 0 | - | 4.96 | 36,571 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,077 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,174 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 37,050 |
| Demonym of Every Country | 0 | - | 4.92 | 60,459 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,323 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,807 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,470 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 162,594 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,803 |
| Biggest Cities in History | 0 | - | 4.52 | 90,234 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 77,764 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,439 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,431 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,584 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,447 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 82,495 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,934 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,260 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,381 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,502 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,437 |
