| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,948 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,174 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,960 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,122 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,233 |
| Island Countries | 0 | - | 4.99 | 710,362 |
| Most Populous Islands | 0 | - | 4.80 | 122,926 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,302 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,533 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,451 |
| Countries with Megacities | 0 | - | 4.99 | 263,357 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,291 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,239 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,583 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,278 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,844 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,904 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,563 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,413 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,269 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,628 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,323 |
| Biggest Cities in the World | 0 | - | 4.91 | 798,778 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,893 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,718 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,795 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,901 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,390 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,535 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,079 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,940 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,545 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,049 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,337 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,838 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,809 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,515 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,895 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 59,616 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,044 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,481 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,625 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,333 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 144,589 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,613 |
| Biggest Cities in the United States | 0 | - | 4.94 | 978,348 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,152 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,858 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,252 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,773 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,618 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,604 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,443 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,887 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,152 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,313 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,886 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,533 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,396 |
| Largest City by Island | 0 | - | 4.87 | 71,865 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,984 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,947 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,505 |
| Megacities on a World Map | 0 | - | 4.98 | 254,513 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 578,157 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,344 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,922 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,649 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,363 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,987 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,274 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,196 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,744 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,249 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,539 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,243 |
| Boundary Waters | 0 | - | 4.92 | 88,464 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,162 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,085 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,440 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,460 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,882 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 183,847 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,321 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,826 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,815 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,428 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,267 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,218 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,940 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,412 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,232 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,986 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,075 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,640 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,408 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,973 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,739 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,765 |
| Name a Valid Island Country | 0 | - | 4.96 | 114,933 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,454,584 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,681 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,431 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,568 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,086 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,981 |
| Biggest City by Region | 0 | - | 4.50 | 36,223 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,138 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,906 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,528 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,345 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,794 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,185 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,350 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,257 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,336 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,414 |
| Landlocked Countries | 0 | - | 4.99 | 420,456 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 572,101 |
| Islands by Wikipedia Descriptions | 0 | - | 4.54 | 37,385 |
| Name a Valid Island | 0 | - | 4.78 | 68,895 |
| Island Superlatives | 0 | - | 4.57 | 34,605 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,602 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,831 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,508 |
| Population Trivia | 0 | - | 4.32 | 27,495 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,299 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,286 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,411 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.88 | 81,098 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,793 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,837 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.85 | 62,234 |
| World Capitals Quiz | 0 | - | 5.00 | 5,073,429 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,684 |
| Himalayan Countries | 0 | - | 4.95 | 138,068 |
| Andean Countries | 0 | - | 4.95 | 84,254 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,477 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,305 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,111 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,552 |
| Danube Countries | 0 | - | 4.97 | 71,826 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,784 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,229 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,958 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,407 |
| European Landlocked Countries | 0 | - | 4.99 | 146,959 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,370 |
| Countries with the Most Species | 0 | - | 4.99 | 103,086 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,527 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,500 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,657 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,440 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,113 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,499 |
| Countries in the Alps | 0 | - | 4.87 | 117,952 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,313 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,690 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,545 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,446 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,299 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,831 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,464 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,336 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,069 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,700 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,563 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,418 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,066 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,345 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,360 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,520 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,177 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,685 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,817 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,144 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,655 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,104 |
| Largest Countries By Category | 0 | - | 4.97 | 157,918 |
| Countries by Countries | 0 | - | 4.97 | 63,006 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,459 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,213 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,507 |
| All Countries by Population With a Map | 0 | - | 4.98 | 109,062 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,798 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,499 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,767,252 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,557 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,793 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,351 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,441 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,570 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,181 |
| Longest International Borders | 0 | - | 4.99 | 264,928 |
| Countries with Three Borders | 0 | - | 4.96 | 36,530 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,010 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,128 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 37,040 |
| Demonym of Every Country | 0 | - | 4.91 | 60,089 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,366 |
