| Landlocked Countries | 0 | - | 4.99 | 415,812 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,098,565 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,507 |
| Himalayan Countries | 0 | - | 4.95 | 136,145 |
| Andean Countries | 0 | - | 4.95 | 83,261 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,564 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,754 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,268 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,893 |
| Danube Countries | 0 | - | 4.97 | 71,309 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,076 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,764 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,971 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,921 |
| European Landlocked Countries | 0 | - | 4.99 | 146,018 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,617 |
| Countries with the Most Species | 0 | - | 4.99 | 95,375 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,756 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,290 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,458 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,097 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,747 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,122 |
| Countries in the Alps | 0 | - | 4.86 | 117,205 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,816 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,709 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,195 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,638 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,444 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,188 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,877 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,932 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,736 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,268 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,301 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,169 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,657 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,920 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,928 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,567 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,835 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,372 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,105 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,529 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,358 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,764 |
| Largest Countries By Category | 0 | - | 4.97 | 157,126 |
| Countries by Countries | 0 | - | 4.96 | 62,500 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,757 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,048 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,392 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,015 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,734,693 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,214 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,331 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,076 |
| Island Countries | 0 | - | 4.99 | 708,528 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,356 |
| Northernmost Countries | 0 | - | 4.99 | 358,959 |
| Countries of South America | 0 | - | 5.00 | 918,560 |
| Countries of Oceania | 0 | - | 5.00 | 1,045,219 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,856,009 |
| "Land" Countries | 0 | - | 4.98 | 334,230 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,047 |
| Countries with Megacities | 0 | - | 4.99 | 248,503 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,929 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,432 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,316 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,372 |
| Countries by Official Language | 0 | - | 4.95 | 193,617 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,123 |
| Countries in their Native Language | 0 | - | 4.99 | 197,338 |
| Independence from Whom | 0 | - | 4.99 | 210,323 |
| Subdivisions by Country | 0 | - | 4.86 | 50,165 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,175 |
| Megadiverse Countries | 0 | - | 4.96 | 134,491 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,513 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,044 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,579 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,927 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,944 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,159 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,439 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,487 |
| 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 | 76,035 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,544 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,648 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,615 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,820 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,148 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,368,405 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,283 |
| World Map Quiz | 0 | - | 4.81 | 63,903 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,957 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,639 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,894 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,584 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,301 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,483 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,175 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,368 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,557 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,103 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,578 |
| Widest Countries East to West | 0 | - | 4.92 | 129,078 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,304 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,558 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,672 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,902 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,894 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,282 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,928 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,654 |
| Countries with Double Letters | 0 | - | 4.96 | 93,784 |
| Countries that End in N | 0 | - | 4.94 | 157,218 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,166 |
| Countries with Six Letters | 0 | - | 4.93 | 210,807 |
| Countries with W | 0 | - | 4.97 | 158,482 |
| Countries with Z | 0 | - | 4.98 | 288,364 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,837 |
| Countries That End in U | 0 | - | 4.95 | 119,652 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,975 |
| Countries that End in O | 0 | - | 4.92 | 158,688 |
| Countries that End in R | 0 | - | 4.87 | 118,400 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,956 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,522 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,618 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,701 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,264 |
| Countries That End in Y | 0 | - | 4.90 | 185,311 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,703 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,977 |
| Countries that End in I | 0 | - | 4.94 | 134,582 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,570 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,342 |
| Countries That End in NIA | 0 | - | 4.92 | 109,196 |
| Countries That End in BIA | 0 | - | 4.92 | 148,294 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,324 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,689 |
| Countries That End in RIA | 0 | - | 4.93 | 126,244 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,227 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,881 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,751 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,108 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,651 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,063 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,340 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,859 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,750 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,930 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,409 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,075 |
| Countries that End in L | 0 | - | 4.94 | 156,193 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,446 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,034 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,668 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,498 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,562 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,131 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,711 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,055 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,734 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,144 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,983 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,848 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,263 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,483 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,462 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,718 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,552 |
| One Border Countries | 0 | - | 4.98 | 466,003 |
| Top Producing Countries | 0 | - | 4.63 | 115,995 |
| ISO Country Codes | 0 | - | 4.45 | 82,238 |
| Countries on the Equator | 0 | - | 4.63 | 140,438 |
| Members of the Arab League | 0 | - | 4.77 | 75,515 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 69,651 |
| Separatist Movements | 0 | - | 4.44 | 45,721 |
| Countries with the Best Passports | 0 | - | 4.73 | 84,772 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,686 |
| Next Country Alphabetically | 0 | - | 4.70 | 86,035 |
| Westernmost Countries | 0 | - | 4.50 | 49,459 |
| Easternmost Countries | 0 | - | 4.75 | 62,725 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 39,527 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 108,090 |
| Indochina Countries | 0 | - | 4.74 | 66,009 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,551 |
| Countries With the Most Conflict Deaths | 0 | - | 4.61 | 95,858 |
| Highest Foreign Aid Recipients | 0 | - | 4.67 | 43,907 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 56,999 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 48,254 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 53,503 |
| Countries that are the Source of Refugees | 0 | - | 4.68 | 60,668 |
| Countries 206 to 242 | 0 | - | 4.74 | 33,783 |
| Most Populous Countries By Category | 0 | - | 4.55 | 85,105 |
| Countries with the Most Turkic People | 0 | - | 4.75 | 45,483 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.74 | 61,345 |
| Flyover Countries | 0 | - | 4.68 | 50,638 |
| Top 50 Countries by Area - In Order | 0 | - | 4.70 | 73,542 |
