| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,209 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,228 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,888 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,594 |
| Countries with Megacities | 0 | - | 4.99 | 268,058 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,242 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,385 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,567 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,488 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,548 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,108 |
| Biggest Cities in the World | 0 | - | 4.91 | 807,324 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,071 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,425 |
| Boundary Waters | 0 | - | 4.92 | 88,867 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,479 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,876 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,612 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,089 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,106 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,603 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,493 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,582 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,869 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 113,100 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,398 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,752 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,134 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,252 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,998 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,954 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,729 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,727 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,989 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,416 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,133 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,735 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,872 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,336 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,593 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,833 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,286 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,553 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,617 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,741 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,678 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,988 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,621 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,897 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,922 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,093 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,285 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,822 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,905 |
| Largest City by Island | 0 | - | 4.87 | 72,594 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,517 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,916 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,281 |
| Megacities on a World Map | 0 | - | 4.98 | 257,584 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,870 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,863 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,851 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 35,382 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,896 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,080 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,046 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,632 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,304 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,585 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,945 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,901 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,858 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,433 |
| Most Populous Islands | 0 | - | 4.80 | 123,466 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,409 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,685 |
| Countries by Population Decrease | 0 | - | 4.46 | 50,031 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,557 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 583,404 |
| Landlocked Countries | 0 | - | 4.99 | 427,550 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 592,739 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,924 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,992,957 |
| Highest Fertility Countries | 0 | - | 4.90 | 27,324 |
| World Geography on a Map #1 | 0 | - | 4.94 | 74,007 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,539 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,998 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,516 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,373 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 105,129 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,997 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,145 |
| Population Trivia | 0 | - | 4.32 | 27,598 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,736 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,229 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,415 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,496 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,393 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,637 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,400 |
| Sahara Desert Countries | 0 | - | 4.98 | 167,060 |
| Himalayan Countries | 0 | - | 4.93 | 140,955 |
| Andean Countries | 0 | - | 4.94 | 85,865 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,972 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,585 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,519 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,735 |
| Danube Countries | 0 | - | 4.97 | 72,587 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,847 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 87,000 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,500 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,972 |
| European Landlocked Countries | 0 | - | 4.99 | 147,806 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,578 |
| Countries with the Most Species | 0 | - | 4.99 | 103,661 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,685 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,826 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,965 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,946 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,699 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,156 |
| Countries in the Alps | 0 | - | 4.87 | 119,020 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,074 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,214 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,081 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,206 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,175 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,413 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,629 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,022 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,529 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,338 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,968 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,846 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,694 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,946 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,046 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,208 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,759 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,665 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,874 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,472 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,589 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,634 |
| Largest Countries By Category | 0 | - | 4.97 | 159,141 |
| Countries by Countries | 0 | - | 4.97 | 63,833 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,493 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,454 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,716 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,563 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,588 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,268 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,610 |
| Western Europe Map Quiz | 0 | - | 4.86 | 94,032 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,914 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,665 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,494 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,688 |
| Longest International Borders | 0 | - | 4.99 | 266,054 |
| Countries with Three Borders | 0 | - | 4.96 | 36,849 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,441 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,589 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.86 | 37,217 |
| Demonym of Every Country | 0 | - | 4.90 | 61,672 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,826 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,530 |
| World Capitals Quiz | 0 | - | 5.00 | 5,115,872 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,814,538 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,414 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 48,089 |
| "Second Best" Geography Edition #1 | 0 | - | 4.56 | 63,758 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,273 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,227 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,687 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,188 |
| Biggest City by Region | 0 | - | 4.50 | 36,424 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,385 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,333 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,464 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,633 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,609 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,881 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,381 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,044 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,179 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,973 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,764 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,602,994 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,134 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,540 |
| Island Countries | 0 | - | 4.99 | 713,111 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,527 |
| Northernmost Countries | 0 | - | 4.99 | 364,751 |
| Countries of South America | 0 | - | 5.00 | 934,724 |
| Countries of Oceania | 0 | - | 5.00 | 1,066,000 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,894,102 |
| "Land" Countries | 0 | - | 4.98 | 339,119 |
| Top World Languages | 0 | - | 4.92 | 831,745 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,787 |
| Globe Grid | 0 | - | 4.32 | 32,050 |
