| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,181 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,440 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,300 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,080 |
| Countries with Megacities | 0 | - | 4.99 | 248,556 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,960 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,444 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,335 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,392 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,874 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,584 |
| Biggest Cities in the World | 0 | - | 4.91 | 793,268 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,357 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,219 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,736 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,236 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,011 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,025 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,575 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,070 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,252 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 223,013 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,319 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,419 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,928 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,856 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,000 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,363 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,440 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,965 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 67,009 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,143 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,717 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,149 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,044 |
| Biggest Cities in the United States | 0 | - | 4.93 | 970,770 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,611 |
| Boundary Waters | 0 | - | 4.92 | 88,173 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,925 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,564 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,697 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,054 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,964 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,009 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,687 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,297 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,752 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,278 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,671 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,845 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,562 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,309 |
| Biggest Cities by Language | 0 | - | 4.96 | 244,969 |
| Largest City by Island | 0 | - | 4.87 | 71,335 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,557 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,870 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,853 |
| Megacities on a World Map | 0 | - | 4.98 | 252,059 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,991 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,280 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,402 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,402 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,593 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,875 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,603 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,484 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,848 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,731 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,977 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,471 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,439 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,485 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 574,992 |
| Most Populous Islands | 0 | - | 4.79 | 122,154 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,228 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,442 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,678 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,982 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,110 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,587 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,489 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,351 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,270 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,977 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,716 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,375 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,347 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,014 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,691 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,199 |
| Megacities on an Empty Map | 0 | - | 4.97 | 116,743 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,519 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,841 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,105,298 |
| Landlocked Countries | 0 | - | 4.99 | 415,890 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 559,708 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,315 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,255 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,275 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,110 |
| Population Trivia | 0 | - | 4.32 | 27,448 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,125 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,147 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,968 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,815 |
| Biggest City by Region | 0 | - | 4.50 | 36,052 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,982 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 68,667 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,250 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,092 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,034 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,087 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,272 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,044 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,268 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,308 |
| World Capitals Quiz | 0 | - | 5.00 | 5,046,061 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,541 |
| Himalayan Countries | 0 | - | 4.95 | 136,180 |
| Andean Countries | 0 | - | 4.95 | 83,283 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,579 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,777 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,278 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,901 |
| Danube Countries | 0 | - | 4.97 | 71,319 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,088 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,774 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,991 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,949 |
| European Landlocked Countries | 0 | - | 4.99 | 146,027 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,638 |
| Countries with the Most Species | 0 | - | 4.99 | 95,384 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,775 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,292 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,465 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,105 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,750 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,125 |
| Countries in the Alps | 0 | - | 4.86 | 117,224 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,824 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,722 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,201 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,651 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,454 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,194 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,887 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,941 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,739 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,274 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,310 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,174 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,664 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,928 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,938 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,580 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,839 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,377 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,113 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,595 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,392 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,773 |
| Largest Countries By Category | 0 | - | 4.97 | 157,146 |
| Countries by Countries | 0 | - | 4.96 | 62,512 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,764 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,053 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,394 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,491 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,348 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,025 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,735,264 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,951 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,600 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,768 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,307 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,048 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,803 |
| Longest International Borders | 0 | - | 4.99 | 264,218 |
| Countries with Three Borders | 0 | - | 4.96 | 36,313 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,740 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,825 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 36,933 |
| Demonym of Every Country | 0 | - | 4.91 | 58,849 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,239 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,526 |
| "Second Best" Geography Edition #1 | 0 | - | 4.64 | 63,185 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,707 |
| Biggest Cities in Europe | 0 | - | 4.70 | 543,362 |
| Biggest Cities in History | 0 | - | 4.52 | 89,317 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,199 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,624 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,725 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,688 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,263 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,958 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,148 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,953 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,779 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,285 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,169 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,781 |
