| Landlocked Countries Quiz | 0 | - | 4.99 | 316,501 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,379,906 |
| Countries on the Equator | 0 | - | 4.82 | 131,753 |
| Members of the Arab League | 0 | - | 4.81 | 58,809 |
| Sahara Desert Countries | 0 | - | 4.97 | 124,896 |
| Himalayan Countries | 0 | - | 4.95 | 102,186 |
| Andean Countries | 0 | - | 4.90 | 56,754 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 57,577 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,490 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 101,785 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,450 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,640 |
| Danube Countries | 0 | - | 4.97 | 56,320 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,342 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,553 |
| Countries with the Best Passports | 0 | - | 4.86 | 70,179 |
| Countries with the Worst Passports | 0 | - | 4.86 | 48,690 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,098 |
| European Landlocked Countries | 0 | - | 4.99 | 114,786 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,638 |
| Countries with the Most Species | 0 | - | 4.99 | 89,054 |
| Countries 197 to 205 | 0 | - | 4.87 | 55,700 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,402 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,773 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,686 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,059 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 58,412 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,605 |
| Countries in the Alps | 0 | - | 4.82 | 101,543 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,510 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 85,570 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,064 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,625 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,255 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 86,791 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 88,966 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,695 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,019 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,073 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 68,835 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,301 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,373 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 94,864 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,428 |
| Countries with the Most Grassland | 0 | - | 4.93 | 68,893 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,359 |
| Countries with the Most Climate Zones | 0 | - | 4.97 | 60,892 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 52,882 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 192,073 |
| World Countries - Blind Typing | 0 | - | 5.00 | 71,074 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 41,899 |
| Largest Countries By Category | 0 | - | 4.96 | 143,725 |
| Countries by Countries | 0 | - | 4.96 | 53,967 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,322 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 77,188 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,008,639 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 338,164 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 351,078 |
| Island Countries Quiz | 0 | - | 4.99 | 637,511 |
| Biggest Countries by Area | 0 | - | 5.00 | 923,397 |
| Northernmost Countries | 0 | - | 4.99 | 325,028 |
| Countries of South America | 0 | - | 5.00 | 782,092 |
| Countries of Oceania | 0 | - | 5.00 | 879,903 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,100,981 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,547,794 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 123,917 |
| Countries with Megacities | 0 | - | 4.99 | 194,364 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,111 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,687 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,460 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,551 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 244,645 |
| Countries by Official Language | 0 | - | 4.95 | 153,273 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 246,179 |
| Countries in their Native Language | 0 | - | 4.98 | 176,775 |
| Independence from Whom | 0 | - | 4.99 | 182,632 |
| Subdivisions by Country | 0 | - | 4.82 | 46,134 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 111,676 |
| Megadiverse Countries | 0 | - | 4.96 | 124,626 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 89,734 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 105,901 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,079 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 129,642 |
| Most Recently-Settled Countries | 0 | - | 4.91 | 48,552 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 76,436 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,220 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,423 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,926 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 42,720 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 100,732 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,271 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,452 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 67,838 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,658 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 79,709 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 80,629 |
| Southernmost Countries of the World | 0 | - | 4.99 | 205,127 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 89,986 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 106,915 |
| Countries With the Most Languages | 0 | - | 4.90 | 171,252 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.92 | 86,475 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 70,754 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 85,310 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,196 |
| Tallest Countries North to South | 0 | - | 4.84 | 109,717 |
| Widest Countries East to West | 0 | - | 4.93 | 118,383 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,661 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 157,752 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,051 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 84,682 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 117,530 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,414 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,230 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 31,808 |
| Countries with Double Letters | 0 | - | 4.96 | 66,374 |
| Countries that End in N | 0 | - | 4.94 | 130,761 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 227,257 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 185,090 |
| Countries with W | 0 | - | 4.97 | 121,074 |
| Countries with Z | 0 | - | 4.98 | 241,714 |
| Countries with Letters Missing | 0 | - | 4.97 | 154,252 |
| Countries That End in U | 0 | - | 4.94 | 106,554 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.96 | 87,949 |
| Countries that End in O | 0 | - | 4.92 | 146,194 |
| Countries that End in R | 0 | - | 4.85 | 95,973 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,756 |
| Countries Ending in "IA" | 0 | - | 4.99 | 169,292 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 154,713 |
| Countries by Last Two Letters | 0 | - | 4.90 | 115,458 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 128,383 |
| Countries That End in Y | 0 | - | 4.90 | 160,718 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 159,453 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 119,658 |
| Countries that End in I | 0 | - | 4.92 | 114,088 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 148,249 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 87,728 |
| Countries That End in NIA | 0 | - | 4.93 | 100,227 |
| Countries That End in BIA | 0 | - | 4.91 | 125,206 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 152,250 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 108,927 |
| Countries That End in RIA | 0 | - | 4.89 | 100,379 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 99,637 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 198,358 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 118,476 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 109,269 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 76,184 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 91,408 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 95,782 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 42,293 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 39,625 |
| Countries that End in L | 0 | - | 4.95 | 133,233 |
| "Land" Countries | 0 | - | 4.98 | 287,656 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 187,310 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,052 |
| City to Country Quiz #1 | 0 | - | 4.94 | 133,619 |
| City to Country Quiz #3 | 0 | - | 4.86 | 99,397 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,014 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 205,951 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 156,801 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 115,574 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 131,463 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 191,808 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 139,846 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 65,375 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 91,437 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 81,821 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 55,318 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,300,493 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,213 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,029,913 |
| One Border Countries | 0 | - | 4.98 | 406,115 |
| Countries With One Word and Three A's | 0 | - | 4.83 | 30,121 |
| Top-Producing Countries | 0 | - | 4.71 | 99,538 |
| Country Codes Quiz | 0 | - | 4.44 | 76,552 |
| Separatist Movements | 0 | - | 4.45 | 42,333 |
| Prime Meridian Countries | 0 | - | 4.64 | 51,691 |
| Next Country Alphabetically | 0 | - | 4.75 | 68,179 |
| Westernmost Countries | 0 | - | 4.50 | 47,267 |
| Easternmost Countries | 0 | - | 4.76 | 60,184 |
| Countries With the Most ISIS Fighters | 0 | - | 4.56 | 36,802 |
| Top 10 Most Famous Island Countries | 0 | - | 4.66 | 97,623 |
| Indochina Countries | 0 | - | 4.72 | 62,473 |
| Atlantic Ocean Island Countries | 0 | - | 4.55 | 62,753 |
| Countries With the Most Conflict Deaths | 0 | - | 4.63 | 90,368 |
| Highest Foreign Aid Recipients | 0 | - | 4.58 | 42,216 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 54,956 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.76 | 45,710 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.45 | 42,317 |
| Countries that are the Source of Refugees | 0 | - | 4.66 | 56,038 |
| Most Populous Countries By Category | 0 | - | 4.64 | 60,909 |
| Countries with the Most Turkic People | 0 | - | 4.80 | 41,668 |
| Countries Most-Mentioned by the New York Times | 0 | - | 4.66 | 44,534 |
| Flyover Countries | 0 | - | 4.72 | 35,606 |
| Top 50 Countries by Area - In Order | 0 | - | 4.75 | 66,069 |
| Countries with the Most Coral Reefs | 0 | - | 4.65 | 37,271 |
| Countries Without a U.S. Embassy | 0 | - | 4.58 | 41,741 |
| Most Recent Countries to Join the United Nations | 0 | - | 4.53 | 31,698 |
| Countries by Total Area of Bordering Countries | 0 | - | 4.79 | 49,034 |
| Countries with the Most Light Pollution | 0 | - | 4.53 | 43,937 |
| Present-Day Communist Nations | 0 | - | 4.49 | 42,991 |
