| Landlocked Countries | 0 | - | 4.99 | 421,403 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,536,158 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,169 |
| Himalayan Countries | 0 | - | 4.95 | 138,459 |
| Andean Countries | 0 | - | 4.93 | 84,462 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,652 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,626 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,288 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,691 |
| Danube Countries | 0 | - | 4.97 | 71,943 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,929 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,356 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,179 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,643 |
| European Landlocked Countries | 0 | - | 4.99 | 147,067 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,523 |
| Countries with the Most Species | 0 | - | 4.99 | 103,176 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,672 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,548 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,695 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,499 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,179 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,596 |
| Countries in the Alps | 0 | - | 4.87 | 118,112 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,690 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,925 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,604 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,541 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,423 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,898 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,591 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,442 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,139 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,791 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,617 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,481 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,164 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,419 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,459 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,749 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,248 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 62,265 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,971 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,639 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,932 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,171 |
| Largest Countries By Category | 0 | - | 4.97 | 158,096 |
| Countries by Countries | 0 | - | 4.96 | 63,131 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,603 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,255 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,545 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,611 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,774,453 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,096 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,349 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,859 |
| Island Countries | 0 | - | 4.99 | 710,828 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,049,091 |
| Northernmost Countries | 0 | - | 4.99 | 361,695 |
| Countries of South America | 0 | - | 5.00 | 926,463 |
| Countries of Oceania | 0 | - | 5.00 | 1,055,791 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,875,353 |
| "Land" Countries | 0 | - | 4.98 | 337,150 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,743 |
| Countries with Megacities | 0 | - | 4.99 | 264,196 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,597 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,391 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,856 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,455 |
| Countries by Official Language | 0 | - | 4.95 | 195,131 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,209 |
| Countries in their Native Language | 0 | - | 4.99 | 198,927 |
| Independence from Whom | 0 | - | 4.99 | 211,951 |
| Subdivisions by Country | 0 | - | 4.86 | 50,400 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,631 |
| Megadiverse Countries | 0 | - | 4.96 | 134,967 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,976 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,320 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,996 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,088 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,037 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,560 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,382 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,996 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,614 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,082 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,562 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,844 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,163 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,930 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,317 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,463 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,382,191 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,012 |
| World Map Quiz | 0 | - | 4.81 | 65,010 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,962 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,292 |
| Countries by Founding Story | 0 | - | 4.95 | 77,316 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,981 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,212 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,935 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,052 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,823 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,959 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,251 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,408 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,524 |
| Widest Countries East to West | 0 | - | 4.92 | 129,591 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,436 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,318 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,100 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,725 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,526 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,801 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,351 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,789 |
| Countries with Double Letters | 0 | - | 4.96 | 96,084 |
| Countries that End in N | 0 | - | 4.95 | 170,969 |
| Countries with Five Letters | 0 | - | 4.96 | 282,159 |
| Countries with Six Letters | 0 | - | 4.94 | 213,391 |
| Countries with W | 0 | - | 4.97 | 160,211 |
| Countries with Z | 0 | - | 4.98 | 291,270 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,567 |
| Countries That End in U | 0 | - | 4.95 | 120,776 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,338 |
| Countries that End in O | 0 | - | 4.92 | 159,463 |
| Countries that End in R | 0 | - | 4.87 | 118,925 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,687 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,944 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,606 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,409 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,325 |
| Countries That End in Y | 0 | - | 4.91 | 185,835 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,812 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,769 |
| Countries that End in I | 0 | - | 4.94 | 135,049 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,986 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,771 |
| Countries That End in NIA | 0 | - | 4.92 | 109,722 |
| Countries That End in BIA | 0 | - | 4.93 | 149,131 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,027 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,362 |
| Countries That End in RIA | 0 | - | 4.93 | 126,767 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,950 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,419 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,605 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,999 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,571 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,540 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,957 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,427 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,462 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,384 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,208 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,901 |
| Countries that End in L | 0 | - | 4.94 | 156,773 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,406 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,245 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,975 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,903 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,948 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,634 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,572 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,923 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,455 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,339 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,816 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,066 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,685 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,836 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,447,229 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,748 |
| One Border Countries | 0 | - | 4.98 | 469,526 |
| Top Producing Countries | 0 | - | 4.63 | 116,243 |
| ISO Country Codes | 0 | - | 4.48 | 91,063 |
| Countries on the Equator | 0 | - | 4.63 | 140,801 |
| Members of the Arab League | 0 | - | 4.77 | 75,627 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 69,893 |
| Separatist Movements | 0 | - | 4.45 | 45,892 |
| Countries with the Best Passports | 0 | - | 4.73 | 85,230 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,820 |
| Next Country Alphabetically | 0 | - | 4.70 | 86,260 |
| Westernmost Countries | 0 | - | 4.43 | 62,376 |
| Easternmost Countries | 0 | - | 4.75 | 62,917 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 39,651 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 108,616 |
| Indochina Countries | 0 | - | 4.74 | 66,179 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,626 |
| Countries With the Most Conflict Deaths | 0 | - | 4.61 | 96,352 |
| Highest Foreign Aid Recipients | 0 | - | 4.67 | 43,977 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 57,091 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 48,388 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 53,689 |
| Countries that are the Source of Refugees | 0 | - | 4.69 | 63,227 |
| Countries 206 to 242 | 0 | - | 4.74 | 33,945 |
| Most Populous Countries By Category | 0 | - | 4.55 | 85,437 |
| Countries with the Most Turkic People | 0 | - | 4.75 | 45,704 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.74 | 61,582 |
| Flyover Countries | 0 | - | 4.69 | 50,811 |
| Top 50 Countries by Area - In Order | 0 | - | 4.73 | 73,939 |
