| Landlocked Countries | 0 | - | 4.99 | 418,172 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,282,777 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,605 |
| Himalayan Countries | 0 | - | 4.94 | 137,095 |
| Andean Countries | 0 | - | 4.95 | 83,764 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,010 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,386 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,686 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,250 |
| Danube Countries | 0 | - | 4.97 | 71,578 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,438 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,983 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,512 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,566 |
| European Landlocked Countries | 0 | - | 4.99 | 146,685 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,016 |
| Countries with the Most Species | 0 | - | 4.99 | 102,791 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,154 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,398 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,558 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,256 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,928 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,309 |
| Countries in the Alps | 0 | - | 4.87 | 117,581 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,052 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,230 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,367 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,905 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,019 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,393 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,184 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,124 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,927 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,490 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,441 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,300 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,869 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,131 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,156 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,027 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,006 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,531 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,420 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,963 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,054 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,938 |
| Largest Countries By Category | 0 | - | 4.97 | 157,522 |
| Countries by Countries | 0 | - | 4.96 | 62,772 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,110 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,134 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,453 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,255 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,752,263 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,303 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,396 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,729 |
| Island Countries | 0 | - | 4.99 | 709,434 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,236 |
| Northernmost Countries | 0 | - | 4.99 | 360,147 |
| Countries of South America | 0 | - | 5.00 | 921,998 |
| Countries of Oceania | 0 | - | 5.00 | 1,049,863 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,864,190 |
| "Land" Countries | 0 | - | 4.98 | 335,616 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,756 |
| Countries with Megacities | 0 | - | 4.99 | 249,935 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,605 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,833 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,916 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,820 |
| Countries by Official Language | 0 | - | 4.95 | 194,496 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,342 |
| Countries in their Native Language | 0 | - | 4.99 | 198,064 |
| Independence from Whom | 0 | - | 4.99 | 211,173 |
| Subdivisions by Country | 0 | - | 4.86 | 50,261 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,590 |
| Megadiverse Countries | 0 | - | 4.96 | 134,718 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,183 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,151 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,711 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,996 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,633 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,328 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,863 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,785 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,454 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,947 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,755 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,670 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,922 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,742 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,082 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,284 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,374,058 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,985 |
| World Map Quiz | 0 | - | 4.81 | 64,394 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,212 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,958 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,356 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,853 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,567 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,121 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,445 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,625 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,766 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,224 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,225 |
| Widest Countries East to West | 0 | - | 4.92 | 129,309 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,370 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,871 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,974 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,465 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,139 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,483 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,207 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,713 |
| Countries with Double Letters | 0 | - | 4.97 | 94,959 |
| Countries that End in N | 0 | - | 4.95 | 169,662 |
| Countries with Five Letters | 0 | - | 4.96 | 279,026 |
| Countries with Six Letters | 0 | - | 4.94 | 212,312 |
| Countries with W | 0 | - | 4.97 | 159,417 |
| Countries with Z | 0 | - | 4.98 | 289,641 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,628 |
| Countries That End in U | 0 | - | 4.95 | 120,360 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,649 |
| Countries that End in O | 0 | - | 4.92 | 159,152 |
| Countries that End in R | 0 | - | 4.87 | 118,690 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,475 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,199 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,033 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,034 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,615 |
| Countries That End in Y | 0 | - | 4.90 | 185,608 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,133 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,341 |
| Countries that End in I | 0 | - | 4.94 | 134,828 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,983 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,539 |
| Countries That End in NIA | 0 | - | 4.92 | 109,464 |
| Countries That End in BIA | 0 | - | 4.93 | 148,782 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,639 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,994 |
| Countries That End in RIA | 0 | - | 4.93 | 126,474 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,567 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,512 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,127 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,466 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,026 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,274 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,620 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,171 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,057 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,163 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,748 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,452 |
| Countries that End in L | 0 | - | 4.94 | 156,490 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,731 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,143 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,801 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,672 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,725 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,638 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,052 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,544 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,025 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,501 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,503 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,925 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.80 | 108,341 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,576 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,612 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,270 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,467 |
| One Border Countries | 0 | - | 4.98 | 467,307 |
| Top Producing Countries | 0 | - | 4.63 | 116,102 |
| ISO Country Codes | 0 | - | 4.45 | 82,328 |
| Countries on the Equator | 0 | - | 4.63 | 140,600 |
| Members of the Arab League | 0 | - | 4.78 | 75,564 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 69,745 |
| Separatist Movements | 0 | - | 4.44 | 45,786 |
| Countries with the Best Passports | 0 | - | 4.73 | 84,986 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,734 |
| Next Country Alphabetically | 0 | - | 4.70 | 86,119 |
| Westernmost Countries | 0 | - | 4.50 | 49,498 |
| Easternmost Countries | 0 | - | 4.77 | 62,774 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 39,581 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 108,342 |
| Indochina Countries | 0 | - | 4.74 | 66,079 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,570 |
| Countries With the Most Conflict Deaths | 0 | - | 4.61 | 96,222 |
| Highest Foreign Aid Recipients | 0 | - | 4.67 | 43,943 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 57,040 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 48,307 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 53,576 |
| Countries that are the Source of Refugees | 0 | - | 4.68 | 60,752 |
| Countries 206 to 242 | 0 | - | 4.74 | 33,847 |
| Most Populous Countries By Category | 0 | - | 4.55 | 85,237 |
| Countries with the Most Turkic People | 0 | - | 4.75 | 45,580 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.74 | 61,439 |
| Flyover Countries | 0 | - | 4.68 | 50,706 |
| Top 50 Countries by Area - In Order | 0 | - | 4.73 | 73,697 |
