| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,598 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,320 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,699 |
| Top 10 European Countries with the Highest Elevation | 0 | - | 4.83 | 91,157 |
| Top Rice-Producing Countries | 0 | - | 4.95 | 98,748 |
| Top Chocolate Growing Countries | 0 | - | 4.93 | 61,709 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,377,021 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.61 | 37,791 |
| Landlocked Countries | 0 | - | 4.99 | 419,503 |
| Countries with Glaciers | 0 | - | 4.97 | 105,362 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,482 |
| Most Forested European Countries | 0 | - | 4.80 | 75,273 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,760,438 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,795 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,535 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,623 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,556 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,149 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,070 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,489 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,109 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,052 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,894 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,174 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,608 |
| Countries with the Most Sheep | 0 | - | 4.92 | 103,157 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,227 |
| Himalayan Countries | 0 | - | 4.95 | 137,668 |
| Andean Countries | 0 | - | 4.95 | 84,062 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,306 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,811 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,929 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,423 |
| Danube Countries | 0 | - | 4.97 | 71,724 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,640 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,116 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,750 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,825 |
| European Landlocked Countries | 0 | - | 4.99 | 146,839 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,209 |
| Countries with the Most Species | 0 | - | 4.99 | 102,984 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,364 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,448 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,610 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,348 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,024 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,418 |
| Countries in the Alps | 0 | - | 4.87 | 117,779 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,198 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,484 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,453 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,097 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,166 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,760 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,353 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,245 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,006 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,605 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,514 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,363 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,971 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,239 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,259 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,295 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,098 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,604 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,631 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,631 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,368 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,030 |
| Largest Countries By Category | 0 | - | 4.97 | 157,748 |
| Countries by Countries | 0 | - | 4.96 | 62,901 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,293 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,173 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,385 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,601 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,452 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,963 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,483 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,760 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,446 |
| Island Countries | 0 | - | 4.99 | 710,002 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,377,025 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,687 |
| Northernmost Countries | 0 | - | 4.99 | 360,752 |
| Countries of South America | 0 | - | 5.00 | 923,744 |
| Countries of Oceania | 0 | - | 5.00 | 1,052,197 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,868,417 |
| "Land" Countries | 0 | - | 4.98 | 335,937 |
| Least Forested European Countries | 0 | - | 4.25 | 53,990 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,444,145 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,925 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,186 |
| Countries with Megacities | 0 | - | 4.99 | 261,954 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,043 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,084 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,340 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,120 |
| Countries by Official Language | 0 | - | 4.95 | 194,751 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,684 |
| Countries in their Native Language | 0 | - | 4.99 | 198,290 |
| Independence from Whom | 0 | - | 4.99 | 211,467 |
| Subdivisions by Country | 0 | - | 4.86 | 50,311 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,815 |
| Megadiverse Countries | 0 | - | 4.96 | 134,805 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,625 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,211 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,782 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,031 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,772 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,418 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,059 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,878 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,518 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,009 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,117 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,746 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,023 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,810 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,184 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,359 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,353 |
| World Map Quiz | 0 | - | 4.81 | 64,688 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,087 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,635 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,000 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,720 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,502 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,596 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,739 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,881 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,302 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,337 |
| Widest Countries East to West | 0 | - | 4.92 | 129,422 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,400 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,018 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,016 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,562 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,287 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,609 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,262 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,147 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,736 |
| Countries with Double Letters | 0 | - | 4.97 | 95,179 |
| Countries that End in N | 0 | - | 4.95 | 170,178 |
| Countries with Five Letters | 0 | - | 4.96 | 280,810 |
| Countries with Six Letters | 0 | - | 4.94 | 212,613 |
| Countries with W | 0 | - | 4.97 | 159,584 |
| Countries with Z | 0 | - | 4.98 | 289,981 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,820 |
| Countries That End in U | 0 | - | 4.95 | 120,442 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,836 |
| Countries that End in O | 0 | - | 4.92 | 159,230 |
| Countries that End in R | 0 | - | 4.87 | 118,757 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,535 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,436 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,181 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,132 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,726 |
| Countries That End in Y | 0 | - | 4.91 | 185,669 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,333 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,494 |
| Countries that End in I | 0 | - | 4.94 | 134,902 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,218 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,607 |
| Countries That End in NIA | 0 | - | 4.92 | 109,546 |
| Countries That End in BIA | 0 | - | 4.93 | 148,895 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,783 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,113 |
| Countries That End in RIA | 0 | - | 4.93 | 126,569 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,699 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,857 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,302 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,685 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,211 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,365 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,726 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,291 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,192 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,230 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,607 |
| Countries that End in L | 0 | - | 4.94 | 156,578 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,284 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,164 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,868 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,755 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,807 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,890 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,257 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,695 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,198 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,693 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,628 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,976 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,612 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,705 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,824,787 |
| One Border Countries | 0 | - | 4.98 | 467,992 |
| Least Forested Countries in Asia | 0 | - | 4.74 | 64,672 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,617,997 |
