| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,466 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,701 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,876 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,599 |
| Countries with Megacities | 0 | - | 4.99 | 249,616 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,441 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,738 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,784 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,700 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,441,457 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,248 |
| Biggest Cities in the World | 0 | - | 4.91 | 795,235 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,529 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,400 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,123 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,492 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,173 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,215 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,776 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,305 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,640 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 223,663 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,665 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,227 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,192 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,065 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,265 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,540 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,647 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,128 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,217 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,564 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,763 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,186 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,849 |
| Biggest Cities in the United States | 0 | - | 4.93 | 973,711 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,158 |
| Boundary Waters | 0 | - | 4.92 | 88,317 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,033 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,767 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,980 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,239 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,156 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,696 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,144 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,407 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,021 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,545 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,850 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,020 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,731 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,788 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,747 |
| Largest City by Island | 0 | - | 4.87 | 71,530 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,668 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,481 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,095 |
| Megacities on a World Map | 0 | - | 4.98 | 252,729 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,107 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,533 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,880 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,550 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,907 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,206 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,966 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 75,977 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 91,731 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,076 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,345 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,953 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,650 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,735 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 576,158 |
| Most Populous Islands | 0 | - | 4.80 | 122,692 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,262 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,482 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,728 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,066 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,239 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,105 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,211 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,743 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,489 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,095 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,911 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,551 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,553 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,363 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,799 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,101 |
| Megacities on an Empty Map | 0 | - | 4.97 | 117,810 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,662 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,458 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,240,269 |
| Landlocked Countries | 0 | - | 4.99 | 417,569 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 564,669 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,442 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,481 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,358 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,397 |
| Population Trivia | 0 | - | 4.32 | 27,463 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,243 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,304 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,019 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,881 |
| Biggest City by Region | 0 | - | 4.50 | 36,090 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 57,021 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,736 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,341 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,471 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,304 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,130 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,304 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,125 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,598 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,335 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.98 | 100,720 |
| World Capitals Quiz | 0 | - | 5.00 | 5,056,465 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,354 |
| Himalayan Countries | 0 | - | 4.94 | 136,875 |
| Andean Countries | 0 | - | 4.95 | 83,656 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,919 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,244 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,586 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,172 |
| Danube Countries | 0 | - | 4.97 | 71,519 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,353 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,936 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,381 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,440 |
| European Landlocked Countries | 0 | - | 4.99 | 146,244 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,938 |
| Countries with the Most Species | 0 | - | 4.99 | 102,591 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,061 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,374 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,546 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,222 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,881 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,265 |
| Countries in the Alps | 0 | - | 4.86 | 117,481 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,998 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,107 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,334 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,836 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,938 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,357 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,113 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,075 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,882 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,423 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,416 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,264 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,823 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,086 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,097 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,930 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,967 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,492 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,358 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,602 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,873 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,901 |
| Largest Countries By Category | 0 | - | 4.97 | 157,429 |
| Countries by Countries | 0 | - | 4.96 | 62,709 |
| Country Flags with the Most White | 0 | - | 4.87 | 138,006 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,119 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,438 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,078 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,513 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,195 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,748,104 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,237 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,698 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,119 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,360 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.97 | 34,655 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,779 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,977 |
| Longest International Borders | 0 | - | 4.99 | 264,473 |
| Countries with Three Borders | 0 | - | 4.96 | 36,396 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,838 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,937 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 36,975 |
| Demonym of Every Country | 0 | - | 4.91 | 59,026 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,266 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,613 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,282 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 151,927 |
| Biggest Cities in Europe | 0 | - | 4.72 | 544,614 |
| Biggest Cities in History | 0 | - | 4.52 | 89,915 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,248 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,871 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,926 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,934 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,317 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,114 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,429 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,282 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,948 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,344 |
