| Landlocked Countries Quiz | 0 | - | 4.99 | 331,378 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,514,447 |
| Members of the Arab League | 0 | - | 4.85 | 65,192 |
| Sahara Desert Countries | 0 | - | 4.97 | 129,368 |
| Himalayan Countries | 0 | - | 4.94 | 107,384 |
| Andean Countries | 0 | - | 4.91 | 59,710 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 60,782 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,471 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 103,849 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,653 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,983 |
| Danube Countries | 0 | - | 4.96 | 57,070 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,087 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,174 |
| Countries with the Best Passports | 0 | - | 4.87 | 72,288 |
| Countries with the Worst Passports | 0 | - | 4.89 | 50,107 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 110,403 |
| European Landlocked Countries | 0 | - | 4.99 | 136,778 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,513 |
| Countries with the Most Species | 0 | - | 4.99 | 89,767 |
| Countries 197 to 205 | 0 | - | 4.87 | 57,003 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,915 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,221 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,824 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,747 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 59,000 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,679 |
| Countries in the Alps | 0 | - | 4.84 | 103,503 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,127 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 88,766 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,078 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,142 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,656 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,115 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,276 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,592 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,592 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,194 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,955 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,889 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,916 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,327 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,471 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,033 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 99,823 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,776 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 53,858 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 200,537 |
| World Countries - Blind Typing | 0 | - | 5.00 | 74,591 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,676 |
| Largest Countries By Category | 0 | - | 4.97 | 146,019 |
| Countries by Countries | 0 | - | 4.96 | 55,319 |
| Country Flags with the Most White | 0 | - | 4.90 | 125,689 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,064 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,191 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,141,990 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,206,458 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 343,631 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 360,400 |
| Island Countries Quiz | 0 | - | 4.99 | 666,248 |
| Biggest Countries by Area | 0 | - | 5.00 | 942,999 |
| Northernmost Countries | 0 | - | 4.99 | 330,027 |
| Countries of South America | 0 | - | 5.00 | 805,067 |
| Countries of Oceania | 0 | - | 5.00 | 907,412 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,599,585 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 128,121 |
| Countries with Megacities | 0 | - | 4.99 | 200,518 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 174,284 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,297 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 97,457 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,295 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 251,466 |
| Countries by Official Language | 0 | - | 4.96 | 174,538 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 251,899 |
| Countries in their Native Language | 0 | - | 4.98 | 179,680 |
| Independence from Whom | 0 | - | 4.99 | 188,091 |
| Subdivisions by Country | 0 | - | 4.82 | 46,765 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 114,961 |
| Megadiverse Countries | 0 | - | 4.96 | 126,307 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 92,854 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,294 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,690 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 132,599 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,644 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 79,126 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,806 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,502 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,732 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 44,684 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 102,048 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,707 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,219 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,144 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,784 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 85,033 |
| World Map Quiz | 0 | - | 4.91 | 50,787 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 82,356 |
| Southernmost Countries of the World | 0 | - | 4.99 | 208,999 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 92,172 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 109,435 |
| Countries With the Most Languages | 0 | - | 4.91 | 176,406 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,402 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 72,682 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 87,769 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 54,764 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,249 |
| Widest Countries East to West | 0 | - | 4.93 | 120,212 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,044 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 160,056 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,544 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,098 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,320 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,257 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,921 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,689 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,302 |
| Countries with Double Letters | 0 | - | 4.96 | 71,034 |
| Countries that End in N | 0 | - | 4.94 | 135,271 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 232,607 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 189,753 |
| Countries with W | 0 | - | 4.96 | 125,055 |
| Countries with Z | 0 | - | 4.98 | 262,940 |
| Countries with Letters Missing | 0 | - | 4.97 | 169,132 |
| Countries That End in U | 0 | - | 4.95 | 109,006 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 91,719 |
| Countries that End in O | 0 | - | 4.92 | 148,314 |
| Countries that End in R | 0 | - | 4.85 | 97,132 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,870 |
| Countries Ending in "IA" | 0 | - | 4.99 | 173,300 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 157,227 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,352 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 130,296 |
| Countries That End in Y | 0 | - | 4.90 | 162,175 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 162,405 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 121,990 |
| Countries that End in I | 0 | - | 4.92 | 115,023 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 151,088 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 89,127 |
| Countries That End in NIA | 0 | - | 4.93 | 101,534 |
| Countries That End in BIA | 0 | - | 4.91 | 126,968 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 154,667 |
| Countries Whose Names Start with Saint | 0 | - | 4.89 | 110,601 |
| Countries That End in RIA | 0 | - | 4.90 | 101,628 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 101,327 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 203,551 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 121,072 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 112,134 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 78,726 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 93,473 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 97,721 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,427 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 41,943 |
| Countries that End in L | 0 | - | 4.95 | 135,483 |
| "Land" Countries | 0 | - | 4.98 | 291,657 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 190,779 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 80,534 |
| City to Country Quiz #1 | 0 | - | 4.94 | 135,029 |
| City to Country Quiz #3 | 0 | - | 4.86 | 100,799 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 72,297 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 210,235 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 169,454 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 117,404 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 134,317 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 195,615 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 141,897 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 66,384 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.84 | 103,001 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,998 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 57,112 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,323,376 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 352,290 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,101,219 |
| One Border Countries | 0 | - | 4.98 | 413,800 |
| Countries With One Word and Three A's | 0 | - | 4.87 | 31,565 |
| Top-Producing Countries | 0 | - | 4.71 | 100,617 |
| Country Codes Quiz | 0 | - | 4.45 | 77,905 |
| Countries on the Equator | 0 | - | 4.78 | 134,951 |
| Separatist Movements | 0 | - | 4.45 | 43,021 |
| Prime Meridian Countries | 0 | - | 4.63 | 52,075 |
| Next Country Alphabetically | 0 | - | 4.75 | 80,571 |
| Westernmost Countries | 0 | - | 4.50 | 47,789 |
| Easternmost Countries | 0 | - | 4.76 | 60,697 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 37,395 |
| Top 10 Most Famous Island Countries | 0 | - | 4.71 | 99,925 |
| Indochina Countries | 0 | - | 4.72 | 63,177 |
| Atlantic Ocean Island Countries | 0 | - | 4.54 | 63,277 |
| Countries With the Most Conflict Deaths | 0 | - | 4.63 | 91,682 |
| Highest Foreign Aid Recipients | 0 | - | 4.70 | 42,632 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 55,382 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.75 | 46,205 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.45 | 43,123 |
| Countries that are the Source of Refugees | 0 | - | 4.69 | 56,926 |
| Most Populous Countries By Category | 0 | - | 4.57 | 61,912 |
| Countries with the Most Turkic People | 0 | - | 4.80 | 42,450 |
| Countries Most-Mentioned by the New York Times | 0 | - | 4.66 | 45,505 |
| Flyover Countries | 0 | - | 4.65 | 47,729 |
| Top 50 Countries by Area - In Order | 0 | - | 4.76 | 67,424 |
| Countries with the Most Coral Reefs | 0 | - | 4.70 | 37,798 |
| Countries Without a U.S. Embassy | 0 | - | 4.58 | 42,863 |
| Most Recent Countries to Join the United Nations | 0 | - | 4.53 | 31,988 |
