| Countries with Glaciers | 0 | - | 4.97 | 104,811 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,592 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,828 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,375 |
| Island Countries | 0 | - | 4.99 | 708,583 |
| Northernmost Countries Without Glaciers | 0 | - | 4.61 | 36,097 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,589 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,031 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,331 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,161 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,505 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,089 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,450 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,889 |
| Least-Forested Countries | 0 | - | 4.53 | 65,003 |
| Tropical Rainforest Countries | 0 | - | 4.68 | 81,841 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,524 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,244 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.62 | 37,727 |
| Most Populous Islands | 0 | - | 4.79 | 122,158 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,228 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,442 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,129 |
| Name a Valid Island Country | 0 | - | 4.96 | 114,381 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,757 |
| Boundary Waters | 0 | - | 4.92 | 88,180 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,930 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,572 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,056 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,111,091 |
| Landlocked Countries | 0 | - | 4.99 | 415,976 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,371 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,039 |
| Islands by Wikipedia Descriptions | 0 | - | 4.54 | 37,276 |
| World Capitals Quiz | 0 | - | 5.00 | 5,046,495 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,735,810 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,234 |
| People Born on Islands | 0 | - | 4.39 | 52,808 |
| Islands by Picture | 0 | - | 4.29 | 106,285 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,318 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,263 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,192 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,449 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,363 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,576,308 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,514 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,206 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,585 |
| Himalayan Countries | 0 | - | 4.95 | 136,212 |
| Andean Countries | 0 | - | 4.95 | 83,301 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,592 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,803 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,294 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,915 |
| Danube Countries | 0 | - | 4.97 | 71,331 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,102 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,783 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,005 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,960 |
| European Landlocked Countries | 0 | - | 4.99 | 146,041 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,650 |
| Countries with the Most Species | 0 | - | 4.99 | 96,526 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,788 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,293 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,471 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,108 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,756 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,128 |
| Countries in the Alps | 0 | - | 4.86 | 117,243 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,831 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,741 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,206 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,657 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,504 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,201 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,894 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,947 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,743 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,277 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,321 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,177 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,672 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,933 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,942 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,595 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,846 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,380 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,123 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,637 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,407 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,778 |
| Largest Countries By Category | 0 | - | 4.97 | 157,164 |
| Countries by Countries | 0 | - | 4.96 | 62,521 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,780 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,059 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,395 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,030 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,561 |
| Northernmost Countries | 0 | - | 4.99 | 359,037 |
| Countries of South America | 0 | - | 5.00 | 918,743 |
| Countries of Oceania | 0 | - | 5.00 | 1,045,551 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,856,461 |
| "Land" Countries | 0 | - | 4.98 | 334,267 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,965 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,603 |
| Top World Languages | 0 | - | 4.92 | 816,370 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,793 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,308 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,064 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,807 |
| Longest International Borders | 0 | - | 4.99 | 264,223 |
| Countries with Three Borders | 0 | - | 4.96 | 36,317 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,744 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,833 |
| East Asian Islands on the Map | 0 | - | 4.54 | 32,986 |
| Demonym of Every Country | 0 | - | 4.91 | 58,856 |
| Islands A-Z | 0 | - | 4.46 | 117,052 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,250 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,793 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,103 |
| Countries with Megacities | 0 | - | 4.99 | 248,601 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,979 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,454 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,348 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,408 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,347 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,460 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,979 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,956 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,165 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,031 |
| Countries by Capital City | 0 | - | 5.00 | 67,302 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,640 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,179 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,626 |
| Moved Capital Cities | 0 | - | 4.96 | 73,824 |
| Countries by Official Language | 0 | - | 4.95 | 193,772 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,261 |
| Countries in their Native Language | 0 | - | 4.99 | 197,426 |
| Independence from Whom | 0 | - | 4.99 | 210,386 |
| Subdivisions by Country | 0 | - | 4.86 | 50,169 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,210 |
| Megadiverse Countries | 0 | - | 4.96 | 134,497 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,635 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,053 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,933 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,175 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,468 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,502 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,795 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 76,061 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,554 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,649 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,621 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,825 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,368,784 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,336 |
| World Map Quiz | 0 | - | 4.81 | 63,933 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,028 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,647 |
| Countries by Founding Story | 0 | - | 4.95 | 76,811 |
| Countries by Road Signs | 0 | - | 4.98 | 53,339 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,937 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,603 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,319 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,525 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,186 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,385 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,567 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,109 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,588 |
| Widest Countries East to West | 0 | - | 4.92 | 129,090 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,305 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,572 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,707 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,915 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,915 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,297 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,969 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,656 |
| Countries with Double Letters | 0 | - | 4.96 | 93,816 |
| Countries that End in N | 0 | - | 4.94 | 157,247 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,204 |
| Countries with Six Letters | 0 | - | 4.93 | 210,841 |
| Countries with W | 0 | - | 4.97 | 158,502 |
| Countries with Z | 0 | - | 4.98 | 288,395 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,853 |
| Countries That End in U | 0 | - | 4.95 | 119,664 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,996 |
| Countries that End in O | 0 | - | 4.92 | 158,693 |
| Countries that End in R | 0 | - | 4.87 | 118,412 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,966 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,560 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,626 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,716 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,279 |
| Countries That End in Y | 0 | - | 4.90 | 185,319 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,729 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,997 |
| Countries that End in I | 0 | - | 4.94 | 134,593 |