| Landlocked Countries Quiz | 0 | - | 4.99 | 316,305 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,362,069 |
| Countries on the Equator | 0 | - | 4.82 | 131,530 |
| Members of the Arab League | 0 | - | 4.81 | 58,726 |
| Sahara Desert Countries | 0 | - | 4.97 | 124,844 |
| Himalayan Countries | 0 | - | 4.95 | 102,127 |
| Andean Countries | 0 | - | 4.90 | 56,723 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 57,538 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,472 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 101,766 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,434 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,624 |
| Danube Countries | 0 | - | 4.97 | 56,310 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,327 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,545 |
| Countries with the Best Passports | 0 | - | 4.86 | 70,154 |
| Countries with the Worst Passports | 0 | - | 4.86 | 48,662 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,045 |
| European Landlocked Countries | 0 | - | 4.99 | 114,777 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,609 |
| Countries with the Most Species | 0 | - | 4.99 | 89,052 |
| Countries 197 to 205 | 0 | - | 4.87 | 55,681 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,395 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,766 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,657 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,046 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 58,403 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,585 |
| Countries in the Alps | 0 | - | 4.82 | 101,480 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,492 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 85,523 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,047 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,603 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,236 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 86,780 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 88,949 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,682 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,012 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,056 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 68,820 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,297 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,366 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 94,838 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,412 |
| Countries with the Most Grassland | 0 | - | 4.93 | 68,878 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,307 |
| Countries with the Most Climate Zones | 0 | - | 4.97 | 60,882 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 52,866 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 191,912 |
| World Countries - Blind Typing | 0 | - | 5.00 | 70,997 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 41,884 |
| Largest Countries By Category | 0 | - | 4.96 | 143,684 |
| Countries by Countries | 0 | - | 4.95 | 53,947 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,315 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 77,160 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,006,569 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 338,072 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 350,948 |
| Island Countries Quiz | 0 | - | 4.99 | 637,323 |
| Biggest Countries by Area | 0 | - | 5.00 | 923,050 |
| Northernmost Countries | 0 | - | 4.99 | 324,948 |
| Countries of South America | 0 | - | 5.00 | 781,751 |
| Countries of Oceania | 0 | - | 5.00 | 879,422 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,099,462 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,547,013 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 123,851 |
| Countries with Megacities | 0 | - | 4.99 | 194,283 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,038 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,648 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,400 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,513 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 244,553 |
| Countries by Official Language | 0 | - | 4.95 | 153,217 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 246,047 |
| Countries in their Native Language | 0 | - | 4.98 | 176,517 |
| Independence from Whom | 0 | - | 4.99 | 182,563 |
| Subdivisions by Country | 0 | - | 4.82 | 46,125 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 111,633 |
| Megadiverse Countries | 0 | - | 4.96 | 124,603 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 89,686 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 105,883 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,073 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 129,609 |
| Most Recently-Settled Countries | 0 | - | 4.91 | 48,536 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 76,405 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,187 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,413 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,918 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 42,680 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 100,720 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,253 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,438 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 67,816 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,649 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 79,636 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 80,601 |
| Southernmost Countries of the World | 0 | - | 4.99 | 205,081 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 89,957 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 106,880 |
| Countries With the Most Languages | 0 | - | 4.90 | 171,186 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.92 | 86,458 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 70,727 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 85,283 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,177 |
| Tallest Countries North to South | 0 | - | 4.84 | 109,700 |
| Widest Countries East to West | 0 | - | 4.93 | 118,363 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,656 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 157,725 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,041 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 84,659 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 117,505 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,396 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,223 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 31,798 |
| Countries with Double Letters | 0 | - | 4.96 | 66,322 |
| Countries that End in N | 0 | - | 4.94 | 130,727 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 227,205 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 185,009 |
| Countries with W | 0 | - | 4.97 | 121,043 |
| Countries with Z | 0 | - | 4.98 | 241,659 |
| Countries with Letters Missing | 0 | - | 4.97 | 154,222 |
| Countries That End in U | 0 | - | 4.94 | 106,531 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.96 | 87,916 |
| Countries that End in O | 0 | - | 4.92 | 146,174 |
| Countries that End in R | 0 | - | 4.85 | 95,960 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,740 |
| Countries Ending in "IA" | 0 | - | 4.99 | 169,238 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 154,687 |
| Countries by Last Two Letters | 0 | - | 4.90 | 115,432 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 128,364 |
| Countries That End in Y | 0 | - | 4.90 | 160,698 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 159,406 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 119,632 |
| Countries that End in I | 0 | - | 4.92 | 114,077 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 148,202 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 87,711 |
| Countries That End in NIA | 0 | - | 4.93 | 100,210 |
| Countries That End in BIA | 0 | - | 4.91 | 125,192 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 152,221 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 108,910 |
| Countries That End in RIA | 0 | - | 4.89 | 100,361 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 99,604 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 198,270 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 118,441 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 109,237 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 76,144 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 91,384 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 95,756 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 42,278 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 39,592 |
| Countries that End in L | 0 | - | 4.95 | 133,207 |
| "Land" Countries | 0 | - | 4.98 | 287,601 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 187,214 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,050 |
| City to Country Quiz #1 | 0 | - | 4.94 | 133,608 |
| City to Country Quiz #3 | 0 | - | 4.86 | 99,385 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 70,995 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 205,898 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 156,772 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 115,549 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 131,431 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 191,760 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 139,821 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 65,369 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 91,378 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 81,810 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 55,297 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,300,112 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,137 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,028,745 |
| One Border Countries | 0 | - | 4.98 | 405,969 |
| Countries With One Word and Three A's | 0 | - | 4.83 | 30,100 |
| Top-Producing Countries | 0 | - | 4.71 | 99,524 |
| Country Codes Quiz | 0 | - | 4.44 | 76,526 |
| Separatist Movements | 0 | - | 4.45 | 42,323 |
| Prime Meridian Countries | 0 | - | 4.64 | 51,686 |
| Next Country Alphabetically | 0 | - | 4.75 | 68,169 |
| Westernmost Countries | 0 | - | 4.50 | 47,262 |
| Easternmost Countries | 0 | - | 4.76 | 60,175 |
| Countries With the Most ISIS Fighters | 0 | - | 4.56 | 36,801 |
| Top 10 Most Famous Island Countries | 0 | - | 4.66 | 97,590 |
| Indochina Countries | 0 | - | 4.72 | 62,469 |
| Atlantic Ocean Island Countries | 0 | - | 4.55 | 62,731 |
| Countries With the Most Conflict Deaths | 0 | - | 4.63 | 90,354 |
| Highest Foreign Aid Recipients | 0 | - | 4.58 | 42,205 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 54,947 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.76 | 45,701 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.45 | 42,301 |
| Countries that are the Source of Refugees | 0 | - | 4.66 | 56,025 |
| Most Populous Countries By Category | 0 | - | 4.64 | 60,901 |
| Countries with the Most Turkic People | 0 | - | 4.80 | 41,650 |
| Countries Most-Mentioned by the New York Times | 0 | - | 4.65 | 44,519 |
| Flyover Countries | 0 | - | 4.72 | 35,596 |
| Top 50 Countries by Area - In Order | 0 | - | 4.75 | 66,060 |
| Countries with the Most Coral Reefs | 0 | - | 4.65 | 37,259 |
| Countries Without a U.S. Embassy | 0 | - | 4.58 | 41,723 |
| Most Recent Countries to Join the United Nations | 0 | - | 4.53 | 31,694 |
| Countries by Total Area of Bordering Countries | 0 | - | 4.79 | 49,023 |
| Countries with the Most Light Pollution | 0 | - | 4.53 | 43,930 |
| Present-Day Communist Nations | 0 | - | 4.49 | 42,984 |
