| Landlocked Countries | 0 | - | 4.99 | 422,372 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,614,147 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,716 |
| Himalayan Countries | 0 | - | 4.95 | 138,915 |
| Andean Countries | 0 | - | 4.93 | 84,726 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,931 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,991 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,548 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,882 |
| Danube Countries | 0 | - | 4.97 | 72,069 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,087 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,472 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,392 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,883 |
| European Landlocked Countries | 0 | - | 4.99 | 147,196 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,725 |
| Countries with the Most Species | 0 | - | 4.99 | 103,280 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,842 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,617 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,738 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,576 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,267 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,711 |
| Countries in the Alps | 0 | - | 4.87 | 118,272 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,366 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,111 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,694 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,635 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,559 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,984 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,722 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,545 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,203 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,895 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,679 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,548 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,261 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,515 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,573 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,999 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,346 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,261 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,140 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,131 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,243 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,268 |
| Largest Countries By Category | 0 | - | 4.97 | 158,285 |
| Countries by Countries | 0 | - | 4.96 | 63,279 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,747 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,304 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,577 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,711 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,781,633 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,899 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,626 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,586 |
| Island Countries | 0 | - | 4.99 | 711,181 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,356 |
| Northernmost Countries | 0 | - | 4.99 | 362,150 |
| Countries of South America | 0 | - | 5.00 | 927,932 |
| Countries of Oceania | 0 | - | 5.00 | 1,057,648 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,878,551 |
| "Land" Countries | 0 | - | 4.98 | 337,452 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,008 |
| Countries with Megacities | 0 | - | 4.99 | 264,827 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,835 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,530 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,094 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,608 |
| Countries by Official Language | 0 | - | 4.95 | 195,323 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,486 |
| Countries in their Native Language | 0 | - | 4.99 | 199,118 |
| Independence from Whom | 0 | - | 4.99 | 212,193 |
| Subdivisions by Country | 0 | - | 4.87 | 50,444 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,800 |
| Megadiverse Countries | 0 | - | 4.96 | 135,050 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,168 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,381 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,257 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,121 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,183 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,618 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,526 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,057 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,680 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,160 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,749 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,912 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,228 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,988 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,375 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,514 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,384,638 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,300 |
| World Map Quiz | 0 | - | 4.81 | 65,146 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,482 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,390 |
| Countries by Founding Story | 0 | - | 4.95 | 77,411 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,165 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,323 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,032 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,314 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,933 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,049 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,331 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,469 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,602 |
| Widest Countries East to West | 0 | - | 4.92 | 129,688 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,465 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,427 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,136 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,795 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,626 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,908 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,387 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,808 |
| Countries with Double Letters | 0 | - | 4.96 | 96,308 |
| Countries that End in N | 0 | - | 4.95 | 171,204 |
| Countries with Five Letters | 0 | - | 4.96 | 282,636 |
| Countries with Six Letters | 0 | - | 4.94 | 213,640 |
| Countries with W | 0 | - | 4.97 | 160,385 |
| Countries with Z | 0 | - | 4.98 | 291,553 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,759 |
| Countries That End in U | 0 | - | 4.95 | 120,877 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,518 |
| Countries that End in O | 0 | - | 4.92 | 159,534 |
| Countries that End in R | 0 | - | 4.87 | 118,981 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,752 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,165 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,731 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,500 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,421 |
| Countries That End in Y | 0 | - | 4.91 | 185,895 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,977 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,894 |
| Countries that End in I | 0 | - | 4.94 | 135,117 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,150 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,840 |
| Countries That End in NIA | 0 | - | 4.92 | 109,807 |
| Countries That End in BIA | 0 | - | 4.93 | 149,237 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,147 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,450 |
| Countries That End in RIA | 0 | - | 4.93 | 126,826 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,042 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,707 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,750 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,172 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,731 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,593 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,056 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,457 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,552 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,445 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,322 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,017 |
| Countries that End in L | 0 | - | 4.94 | 156,866 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,924 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,278 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,048 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,978 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,022 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,815 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,700 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,161 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,878 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,509 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,896 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,117 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,714 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,893 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,819 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,118 |
| One Border Countries | 0 | - | 4.98 | 470,082 |
| Top Producing Countries | 0 | - | 4.63 | 116,273 |
| ISO Country Codes | 0 | - | 4.49 | 91,361 |
| Countries on the Equator | 0 | - | 4.63 | 140,873 |
| Members of the Arab League | 0 | - | 4.77 | 75,648 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 69,929 |
| Separatist Movements | 0 | - | 4.45 | 45,918 |
| Countries with the Best Passports | 0 | - | 4.73 | 85,312 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,840 |
| Next Country Alphabetically | 0 | - | 4.70 | 86,298 |
| Westernmost Countries | 0 | - | 4.43 | 62,445 |
| Easternmost Countries | 0 | - | 4.75 | 62,987 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 39,682 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 108,709 |
| Indochina Countries | 0 | - | 4.74 | 66,222 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,650 |
| Countries With the Most Conflict Deaths | 0 | - | 4.61 | 96,384 |
| Highest Foreign Aid Recipients | 0 | - | 4.67 | 43,989 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 57,116 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 48,423 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 53,726 |
| Countries that are the Source of Refugees | 0 | - | 4.80 | 72,643 |
| Countries 206 to 242 | 0 | - | 4.74 | 33,971 |
| Most Populous Countries By Category | 0 | - | 4.55 | 85,490 |
| Countries with the Most Turkic People | 0 | - | 4.75 | 45,741 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.74 | 61,634 |
| Flyover Countries | 0 | - | 4.69 | 50,858 |
| Top 50 Countries by Area - In Order | 0 | - | 4.73 | 74,031 |
