| Landlocked Countries Quiz | 0 | - | 4.99 | 334,155 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,743,383 |
| Members of the Arab League | 0 | - | 4.86 | 66,229 |
| Sahara Desert Countries | 0 | - | 4.97 | 130,437 |
| Himalayan Countries | 0 | - | 4.94 | 108,371 |
| Andean Countries | 0 | - | 4.91 | 60,158 |
| Countries with the Oldest Median Age | 0 | - | 4.82 | 61,351 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,827 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 104,437 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,835 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 54,250 |
| Danube Countries | 0 | - | 4.96 | 57,221 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,230 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,293 |
| Countries with the Best Passports | 0 | - | 4.86 | 72,692 |
| Countries with the Worst Passports | 0 | - | 4.89 | 50,393 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 111,003 |
| European Landlocked Countries | 0 | - | 4.99 | 137,037 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,798 |
| Countries with the Most Species | 0 | - | 4.99 | 89,855 |
| Countries 197 to 205 | 0 | - | 4.87 | 57,334 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 45,019 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,314 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 49,056 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,880 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 59,118 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,914 |
| Countries in the Alps | 0 | - | 4.84 | 103,844 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,426 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 89,488 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,275 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,369 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,893 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,336 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,538 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,771 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,691 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,408 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 70,169 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 49,026 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 37,029 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,576 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,662 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,237 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 100,533 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,953 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 54,032 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 202,442 |
| World Countries - Blind Typing | 0 | - | 5.00 | 75,355 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,827 |
| Largest Countries By Category | 0 | - | 4.97 | 146,421 |
| Countries by Countries | 0 | - | 4.95 | 55,594 |
| Country Flags with the Most White | 0 | - | 4.90 | 126,531 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,200 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,608 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,169,222 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,227,019 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 344,949 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 362,503 |
| Island Countries Quiz | 0 | - | 4.99 | 668,477 |
| Biggest Countries by Area | 0 | - | 5.00 | 947,144 |
| Northernmost Countries | 0 | - | 4.99 | 330,852 |
| Countries of South America | 0 | - | 5.00 | 809,599 |
| Countries of Oceania | 0 | - | 5.00 | 913,188 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,610,389 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 128,963 |
| Countries with Megacities | 0 | - | 4.99 | 201,744 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,276 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,921 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 98,189 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,815 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 252,893 |
| Countries by Official Language | 0 | - | 4.96 | 175,186 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 253,131 |
| Countries in their Native Language | 0 | - | 4.98 | 180,504 |
| Independence from Whom | 0 | - | 4.99 | 189,294 |
| Subdivisions by Country | 0 | - | 4.84 | 46,884 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 115,583 |
| Megadiverse Countries | 0 | - | 4.96 | 126,777 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 93,851 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,568 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,802 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 133,298 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,877 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 79,601 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 146,020 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,700 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,845 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 45,044 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 102,246 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,925 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,450 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,387 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 66,008 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 86,347 |
| World Map Quiz | 0 | - | 4.90 | 51,342 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 118,334 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 82,692 |
| Southernmost Countries of the World | 0 | - | 4.99 | 209,669 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 92,778 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 109,911 |
| Countries With the Most Languages | 0 | - | 4.90 | 177,632 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,666 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 73,029 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 88,233 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 55,056 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,535 |
| Widest Countries East to West | 0 | - | 4.93 | 120,512 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,114 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 160,493 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,809 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,396 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,608 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,613 |
| Countries with the Most Desert | 0 | - | 4.92 | 106,449 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,791 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,402 |
| Countries with Double Letters | 0 | - | 4.96 | 71,750 |
| Countries that End in N | 0 | - | 4.94 | 135,913 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 233,765 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 190,465 |
| Countries with W | 0 | - | 4.96 | 125,597 |
| Countries with Z | 0 | - | 4.98 | 264,554 |
| Countries with Letters Missing | 0 | - | 4.97 | 169,640 |
| Countries That End in U | 0 | - | 4.95 | 109,308 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 92,308 |
| Countries that End in O | 0 | - | 4.92 | 148,617 |
| Countries that End in R | 0 | - | 4.85 | 97,292 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 148,067 |
| Countries Ending in "IA" | 0 | - | 4.99 | 174,080 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 157,655 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,659 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 130,601 |
| Countries That End in Y | 0 | - | 4.90 | 162,386 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 162,931 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 122,336 |
| Countries that End in I | 0 | - | 4.92 | 115,190 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 151,588 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 89,362 |
| Countries That End in NIA | 0 | - | 4.92 | 101,785 |
| Countries That End in BIA | 0 | - | 4.91 | 127,262 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 155,099 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 110,934 |
| Countries That End in RIA | 0 | - | 4.90 | 101,867 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 101,707 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 204,457 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 121,558 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 112,679 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 79,234 |
| Countries With One Word and Three A's | 0 | - | 4.87 | 31,871 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 93,802 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 98,121 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,663 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 42,447 |
| Countries that End in L | 0 | - | 4.95 | 135,807 |
| "Land" Countries | 0 | - | 4.98 | 292,240 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 191,217 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 82,865 |
| City to Country Quiz #1 | 0 | - | 4.95 | 135,322 |
| City to Country Quiz #3 | 0 | - | 4.87 | 101,038 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 72,578 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 211,002 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 170,851 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 117,766 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 134,864 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 196,322 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 142,527 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 66,600 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.84 | 103,278 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 83,246 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 57,352 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,328,355 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 353,256 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,115,717 |
| One Border Countries | 0 | - | 4.98 | 415,633 |
| Top-Producing Countries | 0 | - | 4.71 | 100,758 |
| Country Codes Quiz | 0 | - | 4.45 | 78,257 |
| Countries on the Equator | 0 | - | 4.78 | 135,164 |
| Separatist Movements | 0 | - | 4.45 | 43,132 |
| Prime Meridian Countries | 0 | - | 4.63 | 52,156 |
| Next Country Alphabetically | 0 | - | 4.75 | 80,868 |
| Westernmost Countries | 0 | - | 4.50 | 47,882 |
| Easternmost Countries | 0 | - | 4.76 | 60,796 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 37,503 |
| Top 10 Most Famous Island Countries | 0 | - | 4.71 | 100,305 |
| Indochina Countries | 0 | - | 4.72 | 63,315 |
| Atlantic Ocean Island Countries | 0 | - | 4.54 | 63,362 |
| Countries With the Most Conflict Deaths | 0 | - | 4.64 | 92,111 |
| Highest Foreign Aid Recipients | 0 | - | 4.70 | 42,694 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 55,478 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.75 | 46,305 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.45 | 43,276 |
| Countries that are the Source of Refugees | 0 | - | 4.69 | 57,098 |
| Most Populous Countries By Category | 0 | - | 4.57 | 62,085 |
| Countries with the Most Turkic People | 0 | - | 4.80 | 42,599 |
| Countries Most-Mentioned by the New York Times | 0 | - | 4.66 | 45,691 |
| Flyover Countries | 0 | - | 4.65 | 47,901 |
| Top 50 Countries by Area - In Order | 0 | - | 4.76 | 67,742 |
| Countries with the Most Coral Reefs | 0 | - | 4.70 | 37,898 |
| Countries Without a U.S. Embassy | 0 | - | 4.58 | 43,081 |
