| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,055 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,084 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,933 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,301 |
| Countries with Megacities | 0 | - | 4.99 | 267,410 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,975 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,222 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,300 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,324 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,880 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,686 |
| Biggest Cities in the World | 0 | - | 4.91 | 806,158 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,502 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,381 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,338 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,727 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,945 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,280 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,664 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,001 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,050 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,861 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,575 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,540 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,225 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,848 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,305 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,020 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,669 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,770 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,254 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,455 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,516 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,036 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,393 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,852 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,855 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,212 |
| Boundary Waters | 0 | - | 4.92 | 88,794 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,430 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,753 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,407 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,005 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,020 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,318 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,492 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,938 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,445 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,740 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,800 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,951 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,218 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,676 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,743 |
| Largest City by Island | 0 | - | 4.87 | 72,493 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,451 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,748 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,188 |
| Megacities on a World Map | 0 | - | 4.98 | 257,157 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,796 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,747 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,586 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 35,309 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,744 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,893 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,940 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,561 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,226 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,539 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,886 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,804 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,723 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,009 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,315 |
| Most Populous Islands | 0 | - | 4.80 | 123,375 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,390 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,658 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,994 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,509 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,836 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,707 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,270 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,074 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 104,973 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,918 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,019 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,605 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,040 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,242 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,452 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,987 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,276 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,546 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,291 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,916,139 |
| Landlocked Countries | 0 | - | 4.99 | 426,472 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 589,859 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,950 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,443 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,780 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,169 |
| Population Trivia | 0 | - | 4.32 | 27,577 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,818 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,142 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,670 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,170 |
| Biggest City by Region | 0 | - | 4.50 | 36,403 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,353 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,330 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,995 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,889 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,796 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,317 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,452 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,582 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,575 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,584 |
| World Capitals Quiz | 0 | - | 5.00 | 5,109,206 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,519 |
| Himalayan Countries | 0 | - | 4.93 | 140,455 |
| Andean Countries | 0 | - | 4.94 | 85,599 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,738 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,195 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,302 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,540 |
| Danube Countries | 0 | - | 4.97 | 72,465 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,674 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,896 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,249 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,723 |
| European Landlocked Countries | 0 | - | 4.99 | 147,662 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,389 |
| Countries with the Most Species | 0 | - | 4.99 | 103,599 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,498 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,789 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,910 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,875 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,612 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,065 |
| Countries in the Alps | 0 | - | 4.87 | 118,847 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,776 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,980 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,008 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,084 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,028 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,316 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,469 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,913 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,460 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,224 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,909 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,777 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,600 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,842 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,942 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,969 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,654 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 75,390 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,736 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,928 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,281 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,547 |
| Largest Countries By Category | 0 | - | 4.97 | 158,943 |
| Countries by Countries | 0 | - | 4.96 | 63,701 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,322 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,423 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,687 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,143 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,467 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,146 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,807,500 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,514 |
| Western Europe Map Quiz | 0 | - | 4.85 | 94,007 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,835 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,628 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,221 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,599 |
| Longest International Borders | 0 | - | 4.99 | 265,887 |
| Countries with Three Borders | 0 | - | 4.96 | 36,797 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,382 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,521 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.86 | 37,192 |
| Demonym of Every Country | 0 | - | 4.90 | 61,541 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,399 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 48,039 |
| "Second Best" Geography Edition #1 | 0 | - | 4.56 | 63,703 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,925 |
| Biggest Cities in Europe | 0 | - | 4.73 | 549,400 |
| Biggest Cities in History | 0 | - | 4.52 | 90,634 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,101 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,127 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,095 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,394 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,619 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,771 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,506 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,298 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,961 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,718 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,696 |
