| Landlocked Countries | 0 | - | 4.99 | 415,861 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,102,137 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,524 |
| Himalayan Countries | 0 | - | 4.95 | 136,165 |
| Andean Countries | 0 | - | 4.95 | 83,269 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,571 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,764 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,273 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,899 |
| Danube Countries | 0 | - | 4.97 | 71,315 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,083 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,771 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,984 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,938 |
| European Landlocked Countries | 0 | - | 4.99 | 146,022 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,630 |
| Countries with the Most Species | 0 | - | 4.99 | 95,378 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,764 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,291 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,462 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,101 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,748 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,125 |
| Countries in the Alps | 0 | - | 4.86 | 117,214 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,820 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,715 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,199 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,642 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,448 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,190 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,882 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,936 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,738 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,272 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,305 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,173 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,922 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,936 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,572 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,837 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,376 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,112 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,574 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,372 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,770 |
| Largest Countries By Category | 0 | - | 4.97 | 157,141 |
| Countries by Countries | 0 | - | 4.96 | 62,505 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,763 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,051 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,394 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,020 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,735,009 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,265 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,399 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,108 |
| Island Countries | 0 | - | 4.99 | 708,544 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,421 |
| Northernmost Countries | 0 | - | 4.99 | 358,984 |
| Countries of South America | 0 | - | 5.00 | 918,610 |
| Countries of Oceania | 0 | - | 5.00 | 1,045,311 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,856,149 |
| "Land" Countries | 0 | - | 4.98 | 334,246 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,063 |
| Countries with Megacities | 0 | - | 4.99 | 248,533 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,947 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,436 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,324 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,380 |
| Countries by Official Language | 0 | - | 4.95 | 193,676 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,173 |
| Countries in their Native Language | 0 | - | 4.99 | 197,369 |
| Independence from Whom | 0 | - | 4.99 | 210,347 |
| Subdivisions by Country | 0 | - | 4.86 | 50,167 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,184 |
| Megadiverse Countries | 0 | - | 4.96 | 134,495 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,562 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,045 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,580 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,930 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,949 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,164 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,446 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,497 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,321 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,795 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 76,050 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,546 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,648 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,618 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,821 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,151 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,368,504 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,298 |
| World Map Quiz | 0 | - | 4.81 | 63,915 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,973 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,642 |
| Countries by Founding Story | 0 | - | 4.95 | 76,793 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,908 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,591 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,305 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,493 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,179 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,373 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,560 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,105 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,582 |
| Widest Countries East to West | 0 | - | 4.92 | 129,082 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,304 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,563 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,673 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,906 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,901 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,289 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,936 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,655 |
| Countries with Double Letters | 0 | - | 4.96 | 93,798 |
| Countries that End in N | 0 | - | 4.94 | 157,225 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,186 |
| Countries with Six Letters | 0 | - | 4.93 | 210,817 |
| Countries with W | 0 | - | 4.97 | 158,490 |
| Countries with Z | 0 | - | 4.98 | 288,377 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,841 |
| Countries That End in U | 0 | - | 4.95 | 119,654 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,979 |
| Countries that End in O | 0 | - | 4.92 | 158,690 |
| Countries that End in R | 0 | - | 4.87 | 118,401 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,958 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,530 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,622 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,705 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,269 |
| Countries That End in Y | 0 | - | 4.90 | 185,313 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,710 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,987 |
| Countries that End in I | 0 | - | 4.94 | 134,584 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,575 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,345 |
| Countries That End in NIA | 0 | - | 4.92 | 109,199 |
| Countries That End in BIA | 0 | - | 4.92 | 148,359 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,327 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,693 |
| Countries That End in RIA | 0 | - | 4.93 | 126,245 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,231 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,890 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,754 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,112 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,654 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,064 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,345 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,862 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,752 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,933 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,418 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,083 |
| Countries that End in L | 0 | - | 4.94 | 156,197 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,481 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,034 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,669 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,499 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,564 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,139 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,716 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,073 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,740 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,153 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,989 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,848 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,265 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,484 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,468 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,783 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,569 |
| One Border Countries | 0 | - | 4.98 | 466,034 |
| Top Producing Countries | 0 | - | 4.63 | 116,000 |
| ISO Country Codes | 0 | - | 4.45 | 82,240 |
| Countries on the Equator | 0 | - | 4.63 | 140,443 |
| Members of the Arab League | 0 | - | 4.77 | 75,516 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 69,654 |
| Separatist Movements | 0 | - | 4.44 | 45,722 |
| Countries with the Best Passports | 0 | - | 4.73 | 84,773 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,687 |
| Next Country Alphabetically | 0 | - | 4.70 | 86,039 |
| Westernmost Countries | 0 | - | 4.50 | 49,459 |
| Easternmost Countries | 0 | - | 4.75 | 62,725 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 39,528 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 108,093 |
| Indochina Countries | 0 | - | 4.74 | 66,010 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,551 |
| Countries With the Most Conflict Deaths | 0 | - | 4.61 | 95,861 |
| Highest Foreign Aid Recipients | 0 | - | 4.67 | 43,907 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 57,000 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 48,256 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 53,504 |
| Countries that are the Source of Refugees | 0 | - | 4.68 | 60,670 |
| Countries 206 to 242 | 0 | - | 4.74 | 33,788 |
| Most Populous Countries By Category | 0 | - | 4.55 | 85,107 |
| Countries with the Most Turkic People | 0 | - | 4.75 | 45,486 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.74 | 61,347 |
| Flyover Countries | 0 | - | 4.68 | 50,639 |
| Top 50 Countries by Area - In Order | 0 | - | 4.70 | 73,546 |
