| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,227 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,244 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,960 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,625 |
| Countries with Megacities | 0 | - | 4.99 | 268,116 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,273 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,398 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,606 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,508 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,696 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,159 |
| Biggest Cities in the World | 0 | - | 4.91 | 807,435 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,610 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,501 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,602 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,881 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 113,186 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,409 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,759 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,148 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,273 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 33,011 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,985 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,750 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,771 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 81,003 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,431 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,151 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,744 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,884 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,344 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,606 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,854 |
| 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 | 421,340 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,705 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,637 |
| Boundary Waters | 0 | - | 4.92 | 88,870 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,482 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,888 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,628 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,097 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,117 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,779 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,706 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,999 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,637 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,909 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,934 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,099 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,292 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,833 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,922 |
| Largest City by Island | 0 | - | 4.87 | 72,600 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,522 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,930 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,289 |
| Megacities on a World Map | 0 | - | 4.98 | 257,618 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,873 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,874 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,875 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,915 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,101 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,056 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,639 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,314 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,588 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,947 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,909 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,873 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,456 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 583,465 |
| Most Populous Islands | 0 | - | 4.80 | 123,470 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,409 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,687 |
| 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 | 23,936 |
| Highest Fertility Countries | 0 | - | 4.90 | 27,331 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 235,017 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,545 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,392 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 105,144 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 109,003 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,151 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,750 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,321 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,425 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,502 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,574 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,404 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,643 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,412 |
| Countries of the World Quiz | 0 | - | 5.00 | 48,000,353 |
| Landlocked Countries | 0 | - | 4.99 | 427,626 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 592,993 |
| World Geography on a Map #1 | 0 | - | 4.94 | 74,015 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,555 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,833 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,283 |
| Population Trivia | 0 | - | 4.32 | 27,599 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,889 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,232 |
| 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 | 57,386 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,385 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,047 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,196 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,983 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,333 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,465 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,637 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,781 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,610 |
| World Capitals Quiz | 0 | - | 5.00 | 5,116,513 |
| Sahara Desert Countries | 0 | - | 4.98 | 167,099 |
| Himalayan Countries | 0 | - | 4.93 | 140,983 |
| Andean Countries | 0 | - | 4.94 | 85,884 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,992 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,605 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,540 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,746 |
| Danube Countries | 0 | - | 4.97 | 72,602 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,863 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 87,008 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,518 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,989 |
| European Landlocked Countries | 0 | - | 4.99 | 147,811 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,595 |
| Countries with the Most Species | 0 | - | 4.99 | 103,667 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,696 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,827 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,968 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,949 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,702 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,167 |
| Countries in the Alps | 0 | - | 4.87 | 119,038 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,102 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,242 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,089 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,213 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,180 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,419 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,633 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,030 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,533 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,347 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,973 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,849 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,700 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,954 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,056 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,233 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,766 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,730 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,884 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,520 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,613 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,637 |
| Largest Countries By Category | 0 | - | 4.97 | 159,156 |
| Countries by Countries | 0 | - | 4.97 | 63,844 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,510 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,457 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,716 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,604 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,595 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,274 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,815,099 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,614 |
| Western Europe Map Quiz | 0 | - | 4.86 | 94,034 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,922 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,669 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,523 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,688 |
| Longest International Borders | 0 | - | 4.99 | 266,068 |
| Countries with Three Borders | 0 | - | 4.96 | 36,855 |
| 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 | 61,681 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,416 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 48,096 |
| "Second Best" Geography Edition #1 | 0 | - | 4.56 | 63,763 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 166,096 |
| Biggest Cities in Europe | 0 | - | 4.70 | 549,938 |
| Biggest Cities in History | 0 | - | 4.52 | 90,735 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,247 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,274 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,236 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,603 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,657 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 85,051 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,656 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,507 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 63,077 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,746 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,745 |
