| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,243 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,256 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,673 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,613 |
| Countries with Megacities | 0 | - | 4.99 | 263,811 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,462 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,322 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,728 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,364 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,472 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,511 |
| Biggest Cities in the World | 0 | - | 4.91 | 799,516 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,937 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,773 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,941 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,980 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,446 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,597 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,119 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,086 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,731 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,336 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,491 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,192 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,919 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,605 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,049 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 59,897 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,135 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,626 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,723 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,599 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,876 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,267 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,970 |
| Biggest Cities in the United States | 0 | - | 4.94 | 979,184 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,330 |
| Boundary Waters | 0 | - | 4.92 | 88,500 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,191 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,150 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,535 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,503 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,460 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,980 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,697 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,640 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,520 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,962 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,214 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,370 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,922 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,764 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,628 |
| Largest City by Island | 0 | - | 4.87 | 71,940 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,054 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,039 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,596 |
| Megacities on a World Map | 0 | - | 4.98 | 254,802 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,401 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,008 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,815 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,868 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,476 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,058 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,356 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,222 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,795 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,280 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,575 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,295 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,031 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,191 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 578,596 |
| Most Populous Islands | 0 | - | 4.80 | 122,961 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,307 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,543 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,838 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,246 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,447 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,014 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 183,953 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,414 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,877 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,472 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,349 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,026 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,338 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,111 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,138 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,033 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,490 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,067 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,798 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,497,147 |
| Landlocked Countries | 0 | - | 4.99 | 420,959 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 573,693 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,642 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,894 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,534 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,740 |
| Population Trivia | 0 | - | 4.32 | 27,498 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,481 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,620 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,100 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,007 |
| Biggest City by Region | 0 | - | 4.50 | 36,243 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,157 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,939 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,565 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,497 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,904 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,202 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,361 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,302 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,455 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,425 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.99 | 101,551 |
| World Capitals Quiz | 0 | - | 5.00 | 5,076,892 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,968 |
| Himalayan Countries | 0 | - | 4.95 | 138,278 |
| Andean Countries | 0 | - | 4.95 | 84,359 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,581 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,489 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,205 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,619 |
| Danube Countries | 0 | - | 4.97 | 71,891 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,860 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,283 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,080 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,547 |
| European Landlocked Countries | 0 | - | 4.99 | 147,019 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,451 |
| Countries with the Most Species | 0 | - | 4.99 | 103,140 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,596 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,532 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,673 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,467 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,148 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,551 |
| Countries in the Alps | 0 | - | 4.87 | 118,030 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,238 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,822 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,573 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,500 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,371 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,869 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,534 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,390 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,109 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,736 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,585 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,440 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,111 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,380 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,410 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,652 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,208 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,720 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,873 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,421 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,804 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,139 |
| Largest Countries By Category | 0 | - | 4.97 | 158,004 |
| Countries by Countries | 0 | - | 4.96 | 63,074 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,527 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,235 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,528 |
| All Countries by Population With a Map | 0 | - | 4.98 | 109,222 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,868 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,559 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,770,878 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,623 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,820 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,400 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,460 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,714 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,229 |
| Longest International Borders | 0 | - | 4.99 | 265,006 |
| Countries with Three Borders | 0 | - | 4.96 | 36,555 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,043 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,154 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 37,046 |
| Demonym of Every Country | 0 | - | 4.91 | 60,371 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,321 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,789 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,453 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 159,450 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,643 |
| Biggest Cities in History | 0 | - | 4.52 | 90,208 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 77,673 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,395 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,376 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,521 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,432 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 82,172 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,885 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,144 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,322 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,486 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,416 |
