| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,230 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,248 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,996 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,638 |
| Countries with Megacities | 0 | - | 4.99 | 268,147 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,289 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,404 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,617 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,519 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,751 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,185 |
| Biggest Cities in the World | 0 | - | 4.91 | 807,486 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,612 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,506 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,604 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,886 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 113,219 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,419 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,760 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,150 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,278 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 33,015 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,994 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,761 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,788 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 81,009 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,432 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,154 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,750 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,891 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,351 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,608 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,862 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,072 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,427 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,366 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,770 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,649 |
| Boundary Waters | 0 | - | 4.92 | 88,870 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,484 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,896 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,633 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,101 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,120 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,790 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,714 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 96,001 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,642 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,917 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,936 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,102 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,293 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,836 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,926 |
| Largest City by Island | 0 | - | 4.87 | 72,605 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,526 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,933 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,291 |
| Megacities on a World Map | 0 | - | 4.98 | 257,637 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,876 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,883 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,891 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,917 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,112 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,062 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,641 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,317 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,589 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,950 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,912 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,879 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,465 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 583,488 |
| Most Populous Islands | 0 | - | 4.80 | 123,474 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,410 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,689 |
| Countries by Population Decrease | 0 | - | 4.46 | 50,034 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,559 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,942 |
| Highest Fertility Countries | 0 | - | 4.90 | 27,334 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 235,030 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,550 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,402 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 105,146 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 109,006 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,155 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,757 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,355 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,432 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,503 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,590 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,411 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,651 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,414 |
| Countries of the World Quiz | 0 | - | 5.00 | 48,003,162 |
| Landlocked Countries | 0 | - | 4.99 | 427,662 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 593,084 |
| World Geography on a Map #1 | 0 | - | 4.94 | 74,018 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,559 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,834 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,285 |
| Population Trivia | 0 | - | 4.32 | 27,600 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,891 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,235 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,689 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,189 |
| Biggest City by Region | 0 | - | 4.50 | 36,428 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,387 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,385 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,048 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,208 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,994 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,334 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,465 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,638 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,784 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,611 |
| World Capitals Quiz | 0 | - | 5.00 | 5,116,782 |
| Sahara Desert Countries | 0 | - | 4.98 | 167,114 |
| Himalayan Countries | 0 | - | 4.93 | 141,004 |
| Andean Countries | 0 | - | 4.94 | 85,891 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 65,004 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,616 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,546 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,752 |
| Danube Countries | 0 | - | 4.97 | 72,606 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,870 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 87,013 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,522 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,998 |
| European Landlocked Countries | 0 | - | 4.99 | 147,815 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,600 |
| Countries with the Most Species | 0 | - | 4.99 | 103,672 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,705 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,829 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,971 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,954 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,704 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,171 |
| Countries in the Alps | 0 | - | 4.87 | 119,044 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,113 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,249 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,090 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,216 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,186 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,422 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,640 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,031 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,536 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,348 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,976 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,850 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,703 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,959 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,060 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,245 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,767 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,756 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,897 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,538 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,629 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,639 |
| Largest Countries By Category | 0 | - | 4.97 | 159,170 |
| Countries by Countries | 0 | - | 4.97 | 63,851 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,517 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,457 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,717 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,613 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,599 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,283 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,815,313 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,622 |
| Western Europe Map Quiz | 0 | - | 4.86 | 94,034 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,923 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,669 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,528 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,691 |
| Longest International Borders | 0 | - | 4.99 | 266,078 |
| Countries with Three Borders | 0 | - | 4.96 | 36,858 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,445 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,593 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.86 | 37,219 |
| Demonym of Every Country | 0 | - | 4.90 | 61,689 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,417 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 48,096 |
| "Second Best" Geography Edition #1 | 0 | - | 4.56 | 63,766 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 166,099 |
| Biggest Cities in Europe | 0 | - | 4.70 | 549,959 |
| Biggest Cities in History | 0 | - | 4.52 | 90,736 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,253 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,284 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,241 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,608 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,659 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 85,058 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,662 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,515 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 63,082 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,747 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,747 |
