| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,437 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,447 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,726 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,947 |
| Countries with Megacities | 0 | - | 4.99 | 264,665 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,775 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,496 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,044 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,568 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,476 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,039 |
| Biggest Cities in the World | 0 | - | 4.91 | 801,030 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,079 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,955 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,231 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,175 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,579 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,755 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,236 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,292 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,036 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,905 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,755 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,862 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,145 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,767 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,268 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,179 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,288 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,840 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,915 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,143 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,910 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,304 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,786 |
| Biggest Cities in the United States | 0 | - | 4.94 | 981,214 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,799 |
| Boundary Waters | 0 | - | 4.92 | 88,582 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,262 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,287 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,756 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,624 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,597 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,487 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,885 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,706 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,747 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,166 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,343 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,502 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,991 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,068 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,992 |
| Largest City by Island | 0 | - | 4.87 | 72,074 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,169 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,211 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,783 |
| Megacities on a World Map | 0 | - | 4.98 | 255,371 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,517 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,195 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,241 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,987 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 168,718 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,248 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,518 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,307 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,926 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,341 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,647 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,418 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,210 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,369 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 579,471 |
| Most Populous Islands | 0 | - | 4.80 | 123,055 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,327 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,571 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,878 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,322 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,526 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,347 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,254 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,673 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,358 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,583 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,540 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,166 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,560 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,370 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,223 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,805 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,723 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,190 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,920 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,597,975 |
| Landlocked Countries | 0 | - | 4.99 | 422,158 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 577,371 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,719 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,038 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,596 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,852 |
| Population Trivia | 0 | - | 4.32 | 27,522 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,594 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,754 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,566 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,051 |
| Biggest City by Region | 0 | - | 4.50 | 36,286 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,197 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,004 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,631 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,834 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,106 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,227 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,382 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,361 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,717 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,457 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.99 | 101,830 |
| World Capitals Quiz | 0 | - | 5.00 | 5,084,305 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,571 |
| Himalayan Countries | 0 | - | 4.94 | 138,831 |
| Andean Countries | 0 | - | 4.93 | 84,667 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,866 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,904 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,495 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,841 |
| Danube Countries | 0 | - | 4.97 | 72,038 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,045 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,446 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,351 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,833 |
| European Landlocked Countries | 0 | - | 4.99 | 147,165 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,680 |
| Countries with the Most Species | 0 | - | 4.99 | 103,265 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,796 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,605 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,729 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,557 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,247 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,685 |
| Countries in the Alps | 0 | - | 4.87 | 118,234 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,232 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,067 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,674 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,618 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,542 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,961 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,697 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,514 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,194 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,869 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,667 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,540 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,243 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,493 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,546 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,958 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,332 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,028 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,119 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,042 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,181 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,249 |
| Largest Countries By Category | 0 | - | 4.97 | 158,248 |
| Countries by Countries | 0 | - | 4.96 | 63,259 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,712 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,297 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,571 |
| All Countries by Population With a Map | 0 | - | 4.98 | 109,671 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,046 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,690 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,780,124 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,729 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,863 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,521 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,501 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,043 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,302 |
| Longest International Borders | 0 | - | 4.99 | 265,228 |
| Countries with Three Borders | 0 | - | 4.96 | 36,623 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,136 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,239 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 37,078 |
| Demonym of Every Country | 0 | - | 4.91 | 60,747 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,337 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,844 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,505 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 164,873 |
| Biggest Cities in Europe | 0 | - | 4.73 | 547,264 |
| Biggest Cities in History | 0 | - | 4.52 | 90,307 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,163 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,561 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,565 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,751 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,490 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 83,108 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,049 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,474 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,497 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,540 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,492 |
