| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,872 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,081 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,871 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,321 |
| Countries with Megacities | 0 | - | 4.99 | 262,781 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,170 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,154 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,468 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,198 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,444,884 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,138 |
| Biggest Cities in the World | 0 | - | 4.91 | 798,129 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,854 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,663 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,663 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,828 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,355 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,491 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,035 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,838 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,387 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,820 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,233 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,593 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,725 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,440 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,778 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 58,643 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,974 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,260 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,566 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,185 |
| 5 Most Populous Cities in Each Country With a Map | 0 | - | 4.96 | 39,469 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,837 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,244 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,298 |
| Biggest Cities in the United States | 0 | - | 4.94 | 977,598 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,978 |
| Boundary Waters | 0 | - | 4.92 | 88,445 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,132 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,031 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,373 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,427 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,360 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,613 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,550 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,578 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,378 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,838 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,097 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,273 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,877 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,449 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,299 |
| Largest City by Island | 0 | - | 4.87 | 71,815 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,901 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,867 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,401 |
| Megacities on a World Map | 0 | - | 4.98 | 254,308 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,311 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,874 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,523 |
| 500 Biggest Cities in the World on a Map | 0 | - | 4.97 | 122,321 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,774 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,270 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,907 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,217 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,161 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,693 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,227 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,518 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,189 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,898 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,051 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 577,794 |
| Most Populous Islands | 0 | - | 4.80 | 122,886 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,295 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,525 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,801 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,196 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,380 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,773 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,759 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,232 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,780 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,405 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,194 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,876 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,091 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,872 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,998 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,315 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,317 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,917 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,691 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,416,591 |
| Landlocked Countries | 0 | - | 4.99 | 419,937 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 570,848 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,562 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,768 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,488 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,637 |
| Population Trivia | 0 | - | 4.32 | 27,487 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,394 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,520 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,072 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,961 |
| Biggest City by Region | 0 | - | 4.50 | 36,193 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,118 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,882 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,502 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,198 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,695 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,175 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,344 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,229 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,216 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,400 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.99 | 101,292 |
| All 50k+ Cities in Europe with a Map | 0 | - | 4.95 | 34,781 |
| World Capitals Quiz | 0 | - | 5.00 | 5,070,207 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,441 |
| Himalayan Countries | 0 | - | 4.95 | 137,875 |
| Andean Countries | 0 | - | 4.95 | 84,147 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,368 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,934 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,010 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,473 |
| Danube Countries | 0 | - | 4.97 | 71,762 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,701 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,159 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,850 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,927 |
| European Landlocked Countries | 0 | - | 4.99 | 146,895 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,281 |
| Countries with the Most Species | 0 | - | 4.99 | 103,035 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,435 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,466 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,636 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,396 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,069 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,465 |
| Countries in the Alps | 0 | - | 4.87 | 117,875 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 96,394 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,592 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,494 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,377 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,238 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,797 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,398 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,276 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,039 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,643 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,540 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,385 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,011 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,298 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,306 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,430 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,134 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,639 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,702 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,883 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,516 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,061 |
| Largest Countries By Category | 0 | - | 4.97 | 157,829 |
| Countries by Countries | 0 | - | 4.97 | 62,949 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,377 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,186 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,495 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,892 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,747 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,447 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,763,870 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,506 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,787 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,314 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,427 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.98 | 34,804 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,430 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,145 |
| Longest International Borders | 0 | - | 4.99 | 264,853 |
| Countries with Three Borders | 0 | - | 4.96 | 36,510 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,983 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,094 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 37,034 |
| Demonym of Every Country | 0 | - | 4.91 | 59,333 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,304 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,731 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,391 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,523 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,097 |
| Biggest Cities in History | 0 | - | 4.52 | 90,104 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 77,164 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,200 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,199 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,324 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,394 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,342 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,723 |
