| Landlocked Countries Quiz | 0 | - | 4.99 | 323,103 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,870,359 |
| Members of the Arab League | 0 | - | 4.85 | 61,644 |
| Sahara Desert Countries | 0 | - | 4.97 | 126,714 |
| Himalayan Countries | 0 | - | 4.94 | 104,581 |
| Andean Countries | 0 | - | 4.91 | 57,974 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 58,912 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,244 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,581 |
| Coffee Producing Countries | 0 | - | 4.81 | 53,996 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,241 |
| Danube Countries | 0 | - | 4.97 | 56,598 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,631 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,800 |
| Countries with the Best Passports | 0 | - | 4.87 | 71,089 |
| Countries with the Worst Passports | 0 | - | 4.87 | 49,281 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 109,433 |
| European Landlocked Countries | 0 | - | 4.99 | 115,110 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,258 |
| Countries with the Most Species | 0 | - | 4.99 | 89,503 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,285 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,649 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,980 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,200 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,376 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,655 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,079 |
| Countries in the Alps | 0 | - | 4.84 | 102,537 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,218 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 86,903 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,509 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,168 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,880 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,478 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,095 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,281 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,585 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,360 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,534 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,629 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,399 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,889 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,394 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 97,814 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,284 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,325 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 195,743 |
| World Countries - Blind Typing | 0 | - | 5.00 | 72,667 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,233 |
| Largest Countries By Category | 0 | - | 4.96 | 144,763 |
| Countries by Countries | 0 | - | 4.96 | 54,573 |
| Country Flags with the Most White | 0 | - | 4.90 | 124,247 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,650 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,077 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,065,059 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 340,775 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 355,022 |
| Island Countries Quiz | 0 | - | 4.99 | 659,924 |
| Biggest Countries by Area | 0 | - | 5.00 | 932,056 |
| Northernmost Countries | 0 | - | 4.99 | 326,886 |
| Countries of South America | 0 | - | 5.00 | 792,021 |
| Countries of Oceania | 0 | - | 5.00 | 892,240 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,146,409 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,569,801 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,667 |
| Countries with Megacities | 0 | - | 4.99 | 196,895 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,255 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,781 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,153 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,744 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,559 |
| Countries by Official Language | 0 | - | 4.96 | 169,537 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 248,928 |
| Countries in their Native Language | 0 | - | 4.98 | 178,131 |
| Independence from Whom | 0 | - | 4.99 | 185,348 |
| Subdivisions by Country | 0 | - | 4.82 | 46,409 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 113,302 |
| Megadiverse Countries | 0 | - | 4.96 | 125,252 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 91,192 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 106,611 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,349 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 131,476 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,092 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 77,762 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,053 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,994 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,309 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,717 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,541 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,946 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,928 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,492 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,207 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 81,973 |
| World Map Quiz | 0 | - | 4.90 | 49,226 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 81,411 |
| Southernmost Countries of the World | 0 | - | 4.99 | 206,549 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,804 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,902 |
| Countries With the Most Languages | 0 | - | 4.90 | 173,378 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 87,237 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 71,500 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 86,188 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,865 |
| Tallest Countries North to South | 0 | - | 4.84 | 110,372 |
| Widest Countries East to West | 0 | - | 4.93 | 119,289 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,801 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 158,911 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,609 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 85,346 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 118,749 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,091 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 66,433 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,031 |
| Countries with Double Letters | 0 | - | 4.96 | 68,148 |
| Countries that End in N | 0 | - | 4.93 | 132,477 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 229,506 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 186,843 |
| Countries with W | 0 | - | 4.97 | 122,570 |
| Countries with Z | 0 | - | 4.98 | 244,210 |
| Countries with Letters Missing | 0 | - | 4.97 | 156,334 |
| Countries That End in U | 0 | - | 4.95 | 107,455 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 89,279 |
| Countries that End in O | 0 | - | 4.92 | 146,848 |
| Countries that End in R | 0 | - | 4.85 | 96,420 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,198 |
| Countries Ending in "IA" | 0 | - | 4.99 | 171,181 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 155,669 |
| Countries by Last Two Letters | 0 | - | 4.91 | 116,152 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 129,222 |
| Countries That End in Y | 0 | - | 4.90 | 161,592 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 160,895 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 120,677 |
| Countries that End in I | 0 | - | 4.92 | 114,463 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 149,450 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,230 |
| Countries That End in NIA | 0 | - | 4.93 | 100,790 |
| Countries That End in BIA | 0 | - | 4.91 | 125,997 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 153,180 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,680 |
| Countries That End in RIA | 0 | - | 4.90 | 100,908 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 100,382 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 200,560 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 119,585 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 110,476 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 77,279 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 92,172 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,647 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 42,777 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 40,628 |
| Countries that End in L | 0 | - | 4.95 | 134,214 |
| "Land" Countries | 0 | - | 4.98 | 289,067 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 188,727 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 65,166 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,228 |
| City to Country Quiz #3 | 0 | - | 4.87 | 100,141 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,556 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 207,721 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 165,985 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 116,393 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 132,674 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 193,770 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 140,803 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,842 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 92,031 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,268 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 55,999 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,310,343 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,437 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,060,690 |
| One Border Countries | 0 | - | 4.98 | 409,483 |
| Countries With One Word and Three A's | 0 | - | 4.85 | 30,755 |
| Top-Producing Countries | 0 | - | 4.71 | 100,153 |
| Country Codes Quiz | 0 | - | 4.45 | 77,155 |
| Countries on the Equator | 0 | - | 4.78 | 134,232 |
| Separatist Movements | 0 | - | 4.45 | 42,644 |
| Prime Meridian Countries | 0 | - | 4.64 | 51,882 |
| Next Country Alphabetically | 0 | - | 4.76 | 68,517 |
| Westernmost Countries | 0 | - | 4.50 | 47,488 |
| Easternmost Countries | 0 | - | 4.76 | 60,403 |
| Countries With the Most ISIS Fighters | 0 | - | 4.56 | 37,049 |
| Top 10 Most Famous Island Countries | 0 | - | 4.70 | 98,429 |
| Indochina Countries | 0 | - | 4.72 | 62,793 |
| Atlantic Ocean Island Countries | 0 | - | 4.55 | 63,059 |
| Countries With the Most Conflict Deaths | 0 | - | 4.64 | 90,843 |
| Highest Foreign Aid Recipients | 0 | - | 4.58 | 42,397 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 55,133 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.76 | 45,932 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.45 | 42,681 |
| Countries that are the Source of Refugees | 0 | - | 4.67 | 56,422 |
| Most Populous Countries By Category | 0 | - | 4.64 | 61,373 |
| Countries with the Most Turkic People | 0 | - | 4.80 | 42,007 |
| Countries Most-Mentioned by the New York Times | 0 | - | 4.70 | 44,987 |
| Flyover Countries | 0 | - | 4.66 | 46,834 |
| Top 50 Countries by Area - In Order | 0 | - | 4.76 | 66,654 |
| Countries with the Most Coral Reefs | 0 | - | 4.66 | 37,491 |
| Countries Without a U.S. Embassy | 0 | - | 4.58 | 42,223 |
| Most Recent Countries to Join the United Nations | 0 | - | 4.53 | 31,821 |
| Countries by Total Area of Bordering Countries | 0 | - | 4.79 | 49,457 |
| Countries with the Most Light Pollution | 0 | - | 4.54 | 44,252 |
