| Landlocked Countries | 0 | - | 4.99 | 417,662 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,244,140 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,381 |
| Himalayan Countries | 0 | - | 4.94 | 136,896 |
| Andean Countries | 0 | - | 4.95 | 83,670 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,931 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,257 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,593 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,177 |
| Danube Countries | 0 | - | 4.97 | 71,523 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,360 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,942 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,393 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,456 |
| European Landlocked Countries | 0 | - | 4.99 | 146,309 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,954 |
| Countries with the Most Species | 0 | - | 4.99 | 102,613 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,072 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,375 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,550 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,226 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,884 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,268 |
| Countries in the Alps | 0 | - | 4.86 | 117,492 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,003 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,117 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,334 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,847 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,949 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,364 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,124 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,079 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,884 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,429 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,419 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,269 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,825 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,096 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,108 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,935 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,973 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,500 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,364 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,668 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,882 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,907 |
| Largest Countries By Category | 0 | - | 4.97 | 157,440 |
| Countries by Countries | 0 | - | 4.96 | 62,717 |
| Country Flags with the Most White | 0 | - | 4.87 | 138,027 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,120 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,440 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,198 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,748,532 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,907 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,262 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,452 |
| Island Countries | 0 | - | 4.99 | 709,255 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,681 |
| Northernmost Countries | 0 | - | 4.99 | 359,923 |
| Countries of South America | 0 | - | 5.00 | 921,249 |
| Countries of Oceania | 0 | - | 5.00 | 1,048,959 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,862,413 |
| "Land" Countries | 0 | - | 4.98 | 335,435 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,622 |
| Countries with Megacities | 0 | - | 4.99 | 249,646 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,459 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,748 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,796 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,715 |
| Countries by Official Language | 0 | - | 4.95 | 194,402 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,226 |
| Countries in their Native Language | 0 | - | 4.99 | 197,966 |
| Independence from Whom | 0 | - | 4.99 | 211,064 |
| Subdivisions by Country | 0 | - | 4.86 | 50,239 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,514 |
| Megadiverse Countries | 0 | - | 4.96 | 134,677 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,099 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,134 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,692 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,979 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,562 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,298 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,778 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,702 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,432 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,846 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,583 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,646 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,761 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,710 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,941 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,270 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,372,935 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,854 |
| World Map Quiz | 0 | - | 4.81 | 64,306 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,933 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,884 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,263 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,796 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,520 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,007 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,392 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,577 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,732 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,201 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,189 |
| Widest Countries East to West | 0 | - | 4.92 | 129,252 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,352 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,791 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,964 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,424 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,087 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,444 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,178 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,703 |
| Countries with Double Letters | 0 | - | 4.97 | 94,783 |
| Countries that End in N | 0 | - | 4.95 | 169,246 |
| Countries with Five Letters | 0 | - | 4.96 | 276,867 |
| Countries with Six Letters | 0 | - | 4.94 | 212,125 |
| Countries with W | 0 | - | 4.97 | 159,295 |
| Countries with Z | 0 | - | 4.98 | 289,477 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,495 |
| Countries That End in U | 0 | - | 4.95 | 120,285 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,521 |
| Countries that End in O | 0 | - | 4.92 | 159,104 |
| Countries that End in R | 0 | - | 4.87 | 118,650 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,434 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,091 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,950 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,970 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,558 |
| Countries That End in Y | 0 | - | 4.90 | 185,575 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,052 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,268 |
| Countries that End in I | 0 | - | 4.94 | 134,778 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,883 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,501 |
| Countries That End in NIA | 0 | - | 4.92 | 109,421 |
| Countries That End in BIA | 0 | - | 4.93 | 148,717 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,571 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,933 |
| Countries That End in RIA | 0 | - | 4.93 | 126,436 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,519 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,376 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,041 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,387 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,983 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,246 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,577 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,110 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,001 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,126 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,689 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,371 |
| Countries that End in L | 0 | - | 4.94 | 156,449 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,501 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,128 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,775 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,637 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,696 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,509 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,952 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,486 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,933 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,408 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,190 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,900 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,324 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,559 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,579 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,441,531 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,283 |
| One Border Countries | 0 | - | 4.98 | 467,042 |
| Top Producing Countries | 0 | - | 4.63 | 116,080 |
| ISO Country Codes | 0 | - | 4.45 | 82,310 |
| Countries on the Equator | 0 | - | 4.63 | 140,577 |
| Members of the Arab League | 0 | - | 4.77 | 75,552 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 69,726 |
| Separatist Movements | 0 | - | 4.44 | 45,772 |
| Countries with the Best Passports | 0 | - | 4.73 | 84,939 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,713 |
| Next Country Alphabetically | 0 | - | 4.70 | 86,098 |
| Westernmost Countries | 0 | - | 4.50 | 49,492 |
| Easternmost Countries | 0 | - | 4.75 | 62,765 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 39,567 |
| Top 10 Most Famous Island Countries | 0 | - | 4.68 | 108,274 |
| Indochina Countries | 0 | - | 4.74 | 66,065 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,569 |
| Countries With the Most Conflict Deaths | 0 | - | 4.61 | 96,204 |
| Highest Foreign Aid Recipients | 0 | - | 4.67 | 43,939 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 57,031 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 48,298 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 53,561 |
| Countries that are the Source of Refugees | 0 | - | 4.68 | 60,737 |
| Countries 206 to 242 | 0 | - | 4.74 | 33,832 |
| Most Populous Countries By Category | 0 | - | 4.55 | 85,203 |
| Countries with the Most Turkic People | 0 | - | 4.75 | 45,563 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.74 | 61,422 |
| Flyover Countries | 0 | - | 4.68 | 50,691 |
| Top 50 Countries by Area - In Order | 0 | - | 4.73 | 73,662 |
