| Landlocked Countries Quiz | 0 | - | 4.99 | 396,830 |
| Countries of the World Quiz | 0 | - | 5.00 | 45,447,637 |
| Sahara Desert Countries | 0 | - | 4.98 | 152,560 |
| Himalayan Countries | 0 | - | 4.95 | 128,288 |
| Andean Countries | 0 | - | 4.93 | 72,264 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 59,395 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 117,732 |
| Coffee Producing Countries | 0 | - | 4.84 | 62,772 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 61,855 |
| Danube Countries | 0 | - | 4.97 | 62,515 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 99,153 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 83,528 |
| Countries with the Worst Passports | 0 | - | 4.93 | 78,039 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 142,966 |
| European Landlocked Countries | 0 | - | 4.99 | 143,301 |
| Partially Recognized Countries | 0 | - | 4.98 | 101,334 |
| Countries with the Most Species | 0 | - | 4.99 | 93,723 |
| Countries 197 to 205 | 0 | - | 4.88 | 66,229 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 52,400 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 46,589 |
| Countries that Use the Peso | 0 | - | 4.89 | 57,621 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 71,134 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 55,208 |
| Countries in the Alps | 0 | - | 4.87 | 113,652 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 92,472 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 101,226 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 76,645 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 92,968 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 112,874 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 93,319 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 97,047 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 51,190 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 49,047 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 60,240 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 52,171 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 39,992 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 101,709 |
| Arctic Ocean Countries | 0 | - | 4.95 | 77,187 |
| Countries with the Most Grassland | 0 | - | 4.93 | 75,121 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 112,677 |
| Countries with the Most Climate Zones | 0 | - | 4.94 | 66,084 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 57,920 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.94 | 41,719 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 229,844 |
| World Countries - Blind Typing | 0 | - | 5.00 | 99,982 |
| Countries in Their Own Alphabet | 0 | - | 4.96 | 46,295 |
| Largest Countries By Category | 0 | - | 4.97 | 153,691 |
| Countries by Countries | 0 | - | 4.96 | 60,132 |
| Country Flags with the Most White | 0 | - | 4.86 | 134,377 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,233 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 85,622 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,490,226 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,579,768 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 365,403 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 390,352 |
| Island Countries Quiz | 0 | - | 4.99 | 699,221 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,014,772 |
| Northernmost Countries | 0 | - | 4.99 | 347,454 |
| Countries of South America | 0 | - | 5.00 | 886,060 |
| Countries of Oceania | 0 | - | 5.00 | 1,004,443 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,781,745 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 165,295 |
| Countries with Megacities | 0 | - | 4.99 | 225,318 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 191,598 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 108,817 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 130,576 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 76,333 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 308,697 |
| Countries by Official Language | 0 | - | 4.95 | 188,030 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 287,109 |
| Countries in their Native Language | 0 | - | 4.98 | 191,971 |
| Independence from Whom | 0 | - | 4.99 | 204,572 |
| Subdivisions by Country | 0 | - | 4.85 | 49,273 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 126,966 |
| Megadiverse Countries | 0 | - | 4.97 | 132,052 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 125,530 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 53,973 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 123,156 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,136 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.86 | 49,825 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 157,780 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 60,710 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 89,833 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 150,839 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 81,407 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,872 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 71,275 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 105,750 |
| Countries Furthest from the United States | 0 | - | 4.93 | 86,977 |
| Countries with the Highest HDI | 0 | - | 4.95 | 135,434 |
| Straight Shot to the Arctic Circle | 0 | - | 4.87 | 73,189 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 69,599 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,309,750 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 103,022 |
| World Map Quiz | 0 | - | 4.83 | 60,428 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 143,149 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 88,696 |
| Southernmost Countries of the World | 0 | - | 4.99 | 222,101 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 101,438 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 119,102 |
| Countries With the Most Languages | 0 | - | 4.89 | 194,093 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 106,812 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 90,893 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 96,109 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 59,618 |
| Tallest Countries North to South | 0 | - | 4.83 | 117,588 |
| Widest Countries East to West | 0 | - | 4.92 | 126,562 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,678 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 182,584 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 96,511 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 92,058 |
| Largest Countries as a Percent of Continent | 0 | - | 4.98 | 145,085 |
| Countries with the Most Desert | 0 | - | 4.93 | 125,075 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 68,543 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,067 |
| Countries with Double Letters | 0 | - | 4.97 | 87,856 |
| Countries that End in N | 0 | - | 4.93 | 151,278 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 252,358 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 205,348 |
| Countries with W | 0 | - | 4.97 | 153,880 |
| Countries with Z | 0 | - | 4.98 | 281,422 |
| Countries with Letters Missing | 0 | - | 4.97 | 180,479 |
| Countries That End in U | 0 | - | 4.95 | 116,990 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 104,635 |
| Countries that End in O | 0 | - | 4.92 | 156,414 |
| Countries that End in R | 0 | - | 4.83 | 101,292 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 153,195 |
| Countries Ending in "IA" | 0 | - | 4.99 | 202,235 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 166,358 |
| Countries by Last Two Letters | 0 | - | 4.88 | 132,381 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 138,329 |
| Countries That End in Y | 0 | - | 4.91 | 183,706 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 193,126 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.93 | 148,926 |
| Countries that End in I | 0 | - | 4.92 | 118,512 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 178,918 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 93,769 |
| Countries That End in NIA | 0 | - | 4.92 | 107,322 |
| Countries That End in BIA | 0 | - | 4.92 | 145,517 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 163,325 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 116,515 |
| Countries That End in RIA | 0 | - | 4.92 | 124,286 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 107,851 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 219,999 |
| Divided Country Name Puzzle #2 | 0 | - | 4.98 | 129,684 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 121,802 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 87,545 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 72,548 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 50,274 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 100,371 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 122,055 |
| Countries that are Free from U.S.A. | 0 | - | 4.88 | 47,518 |
| Countries with the Word "And" | 0 | - | 4.98 | 92,016 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 50,189 |
| Countries that End in L | 0 | - | 4.94 | 153,675 |
| "Land" Countries | 0 | - | 4.98 | 303,043 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 200,567 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,422 |
| City to Country Quiz #1 | 0 | - | 4.96 | 153,007 |
| City to Country Quiz #3 | 0 | - | 4.88 | 106,945 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 76,932 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 223,327 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 195,388 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 123,816 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 159,160 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 219,364 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 149,185 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 69,631 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 106,705 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.94 | 85,487 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 60,778 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,403,128 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 369,343 |
| One Border Countries | 0 | - | 4.97 | 451,267 |
| Top Producing Countries | 0 | - | 4.63 | 114,996 |
| Country Codes Quiz | 0 | - | 4.45 | 81,349 |
| Countries on the Equator | 0 | - | 4.69 | 138,860 |
| Members of the Arab League | 0 | - | 4.78 | 75,060 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 68,777 |
| Separatist Movements | 0 | - | 4.44 | 45,044 |
| Countries with the Best Passports | 0 | - | 4.75 | 82,971 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,191 |
| Next Country Alphabetically | 0 | - | 4.70 | 84,514 |
| Westernmost Countries | 0 | - | 4.50 | 49,065 |
| Easternmost Countries | 0 | - | 4.74 | 62,156 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 38,987 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 106,119 |
| Indochina Countries | 0 | - | 4.70 | 65,245 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,241 |
| Countries With the Most Conflict Deaths | 0 | - | 4.63 | 94,990 |
| Highest Foreign Aid Recipients | 0 | - | 4.64 | 43,620 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 56,595 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 47,692 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 52,689 |
| Countries that are the Source of Refugees | 0 | - | 4.69 | 59,724 |
| Countries 206 to 242 | 0 | - | 4.70 | 33,164 |
| Most Populous Countries By Category | 0 | - | 4.56 | 83,776 |
| Countries with the Most Turkic People | 0 | - | 4.74 | 44,708 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.74 | 60,438 |
| Flyover Countries | 0 | - | 4.64 | 49,881 |
