| Landlocked Countries Quiz | 0 | - | 4.99 | 334,360 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,759,736 |
| Members of the Arab League | 0 | - | 4.86 | 66,291 |
| Sahara Desert Countries | 0 | - | 4.97 | 130,493 |
| Himalayan Countries | 0 | - | 4.94 | 108,433 |
| Andean Countries | 0 | - | 4.91 | 60,208 |
| Countries with the Oldest Median Age | 0 | - | 4.82 | 61,390 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,858 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 104,473 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,857 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 54,265 |
| Danube Countries | 0 | - | 4.96 | 57,237 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,247 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,302 |
| Countries with the Best Passports | 0 | - | 4.86 | 72,720 |
| Countries with the Worst Passports | 0 | - | 4.89 | 50,414 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 111,045 |
| European Landlocked Countries | 0 | - | 4.99 | 137,049 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,818 |
| Countries with the Most Species | 0 | - | 4.99 | 89,859 |
| Countries 197 to 205 | 0 | - | 4.87 | 57,347 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 45,027 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,321 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 49,072 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,887 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 59,125 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,932 |
| Countries in the Alps | 0 | - | 4.84 | 103,875 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,447 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 89,547 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,292 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,388 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,906 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,358 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,561 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,780 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,702 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,421 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 70,183 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 49,034 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 37,035 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,590 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,681 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,252 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 100,580 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,968 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 54,052 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 202,592 |
| World Countries - Blind Typing | 0 | - | 5.00 | 75,423 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,837 |
| Largest Countries By Category | 0 | - | 4.97 | 146,449 |
| Countries by Countries | 0 | - | 4.95 | 55,611 |
| Country Flags with the Most White | 0 | - | 4.90 | 126,559 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,211 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,630 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,171,254 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,228,537 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 345,052 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 362,637 |
| Island Countries Quiz | 0 | - | 4.99 | 668,649 |
| Biggest Countries by Area | 0 | - | 5.00 | 947,444 |
| Northernmost Countries | 0 | - | 4.99 | 330,907 |
| Countries of South America | 0 | - | 5.00 | 809,908 |
| Countries of Oceania | 0 | - | 5.00 | 913,605 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,611,180 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 129,016 |
| Countries with Megacities | 0 | - | 4.99 | 201,821 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,344 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,954 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 98,234 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,865 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 253,005 |
| Countries by Official Language | 0 | - | 4.96 | 175,227 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 253,212 |
| Countries in their Native Language | 0 | - | 4.98 | 180,560 |
| Independence from Whom | 0 | - | 4.99 | 189,358 |
| Subdivisions by Country | 0 | - | 4.84 | 46,891 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 115,623 |
| Megadiverse Countries | 0 | - | 4.96 | 126,794 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 93,899 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,582 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,816 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 133,335 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,888 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 79,627 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 146,037 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,713 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,854 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 45,072 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 102,257 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,938 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,469 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,401 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 66,023 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 86,475 |
| World Map Quiz | 0 | - | 4.90 | 51,393 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 118,441 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 82,721 |
| Southernmost Countries of the World | 0 | - | 4.99 | 209,727 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 92,811 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 109,949 |
| Countries With the Most Languages | 0 | - | 4.90 | 177,696 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,685 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 73,053 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 88,272 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 55,079 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,560 |
| Widest Countries East to West | 0 | - | 4.93 | 120,535 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,117 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 160,532 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,819 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,407 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,690 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,643 |
| Countries with the Most Desert | 0 | - | 4.92 | 106,471 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,795 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,408 |
| Countries with Double Letters | 0 | - | 4.96 | 71,780 |
| Countries that End in N | 0 | - | 4.94 | 135,961 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 233,823 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 190,520 |
| Countries with W | 0 | - | 4.96 | 125,632 |
| Countries with Z | 0 | - | 4.98 | 264,630 |
| Countries with Letters Missing | 0 | - | 4.97 | 169,679 |
| Countries That End in U | 0 | - | 4.95 | 109,325 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 92,355 |
| Countries that End in O | 0 | - | 4.92 | 148,638 |
| Countries that End in R | 0 | - | 4.85 | 97,301 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 148,083 |
| Countries Ending in "IA" | 0 | - | 4.99 | 174,137 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 157,682 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,683 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 130,629 |
| Countries That End in Y | 0 | - | 4.90 | 162,402 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 162,970 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 122,367 |
| Countries that End in I | 0 | - | 4.92 | 115,195 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 151,618 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 89,377 |
| Countries That End in NIA | 0 | - | 4.92 | 101,806 |
| Countries That End in BIA | 0 | - | 4.91 | 127,283 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 155,141 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 110,957 |
| Countries That End in RIA | 0 | - | 4.90 | 101,879 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 101,738 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 204,537 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 121,595 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 112,716 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 79,269 |
| Countries With One Word and Three A's | 0 | - | 4.87 | 31,889 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 93,823 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 98,148 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,682 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 42,481 |
| Countries that End in L | 0 | - | 4.95 | 135,830 |
| "Land" Countries | 0 | - | 4.98 | 292,289 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 191,257 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 82,880 |
| City to Country Quiz #1 | 0 | - | 4.95 | 135,344 |
| City to Country Quiz #3 | 0 | - | 4.87 | 101,054 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 72,605 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 211,061 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 170,938 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 117,802 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 134,903 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 196,380 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 142,561 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 66,614 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.84 | 103,299 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 83,267 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 57,372 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,328,722 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 353,351 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,116,813 |
| One Border Countries | 0 | - | 4.98 | 415,729 |
| Top-Producing Countries | 0 | - | 4.71 | 100,776 |
| Country Codes Quiz | 0 | - | 4.45 | 78,277 |
| Countries on the Equator | 0 | - | 4.78 | 135,180 |
| Separatist Movements | 0 | - | 4.45 | 43,137 |
| Prime Meridian Countries | 0 | - | 4.63 | 52,160 |
| Next Country Alphabetically | 0 | - | 4.75 | 80,883 |
| Westernmost Countries | 0 | - | 4.50 | 47,886 |
| Easternmost Countries | 0 | - | 4.76 | 60,803 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 37,511 |
| Top 10 Most Famous Island Countries | 0 | - | 4.71 | 100,327 |
| Indochina Countries | 0 | - | 4.72 | 63,325 |
| Atlantic Ocean Island Countries | 0 | - | 4.54 | 63,365 |
| Countries With the Most Conflict Deaths | 0 | - | 4.64 | 92,122 |
| Highest Foreign Aid Recipients | 0 | - | 4.70 | 42,701 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 55,483 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.75 | 46,310 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.45 | 43,288 |
| Countries that are the Source of Refugees | 0 | - | 4.69 | 57,108 |
| Most Populous Countries By Category | 0 | - | 4.57 | 62,103 |
| Countries with the Most Turkic People | 0 | - | 4.80 | 42,608 |
| Countries Most-Mentioned by the New York Times | 0 | - | 4.66 | 45,706 |
| Flyover Countries | 0 | - | 4.65 | 47,912 |
| Top 50 Countries by Area - In Order | 0 | - | 4.76 | 67,772 |
| Countries with the Most Coral Reefs | 0 | - | 4.70 | 37,907 |
| Countries Without a U.S. Embassy | 0 | - | 4.58 | 43,107 |
