| Landlocked Countries | 0 | - | 4.99 | 417,350 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,219,839 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,253 |
| Himalayan Countries | 0 | - | 4.95 | 136,791 |
| Andean Countries | 0 | - | 4.95 | 83,622 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,878 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,180 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,549 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,142 |
| Danube Countries | 0 | - | 4.97 | 71,494 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,324 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,912 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,321 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,327 |
| European Landlocked Countries | 0 | - | 4.99 | 146,206 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,895 |
| Countries with the Most Species | 0 | - | 4.99 | 102,446 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,022 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,358 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,539 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,208 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,860 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,242 |
| Countries in the Alps | 0 | - | 4.86 | 117,447 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,974 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,059 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,312 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,815 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,911 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,328 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,084 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,052 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,869 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,403 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,404 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,245 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,794 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,061 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,070 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,862 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,946 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,476 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,314 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,432 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,786 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,880 |
| Largest Countries By Category | 0 | - | 4.97 | 157,370 |
| Countries by Countries | 0 | - | 4.96 | 62,679 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,965 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,111 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,430 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,158 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,746,108 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,649 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,142 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,291 |
| Island Countries | 0 | - | 4.99 | 709,137 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,278 |
| Northernmost Countries | 0 | - | 4.99 | 359,765 |
| Countries of South America | 0 | - | 5.00 | 920,694 |
| Countries of Oceania | 0 | - | 5.00 | 1,048,340 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,861,216 |
| "Land" Countries | 0 | - | 4.98 | 335,259 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,520 |
| Countries with Megacities | 0 | - | 4.99 | 249,476 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,371 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,688 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,698 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,652 |
| Countries by Official Language | 0 | - | 4.95 | 194,285 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,107 |
| Countries in their Native Language | 0 | - | 4.99 | 197,870 |
| Independence from Whom | 0 | - | 4.99 | 210,995 |
| Subdivisions by Country | 0 | - | 4.86 | 50,229 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,464 |
| Megadiverse Countries | 0 | - | 4.96 | 134,620 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,031 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,119 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,669 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,967 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,523 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,279 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,721 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,627 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,411 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,824 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,496 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,626 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,720 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,689 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,902 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,252 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,372,262 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,769 |
| World Map Quiz | 0 | - | 4.81 | 64,241 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,768 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,792 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,200 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,752 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,483 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,915 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,360 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,528 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,695 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,187 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,164 |
| Widest Countries East to West | 0 | - | 4.92 | 129,232 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,345 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,751 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,947 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,102 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,057 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,425 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,163 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,693 |
| Countries with Double Letters | 0 | - | 4.97 | 94,659 |
| Countries that End in N | 0 | - | 4.95 | 168,866 |
| Countries with Five Letters | 0 | - | 4.96 | 274,434 |
| Countries with Six Letters | 0 | - | 4.94 | 211,941 |
| Countries with W | 0 | - | 4.97 | 159,201 |
| Countries with Z | 0 | - | 4.98 | 289,327 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,405 |
| Countries That End in U | 0 | - | 4.95 | 120,234 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,426 |
| Countries that End in O | 0 | - | 4.92 | 159,050 |
| Countries that End in R | 0 | - | 4.87 | 118,624 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,396 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,003 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,900 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,928 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,509 |
| Countries That End in Y | 0 | - | 4.90 | 185,534 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,995 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,213 |
| Countries that End in I | 0 | - | 4.94 | 134,739 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,823 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,471 |
| Countries That End in NIA | 0 | - | 4.92 | 109,381 |
| Countries That End in BIA | 0 | - | 4.93 | 148,664 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,531 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,881 |
| Countries That End in RIA | 0 | - | 4.93 | 126,410 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,458 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,278 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,988 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,309 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,937 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,215 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,538 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,064 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,947 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,098 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,640 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,334 |
| Countries that End in L | 0 | - | 4.94 | 156,391 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,309 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,119 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,755 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,617 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,677 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,464 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,908 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,443 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,903 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,359 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,105 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,893 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,316 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,545 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,557 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,441,065 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,147 |
| One Border Countries | 0 | - | 4.98 | 466,842 |
| Top Producing Countries | 0 | - | 4.63 | 116,065 |
| ISO Country Codes | 0 | - | 4.45 | 82,301 |
| Countries on the Equator | 0 | - | 4.63 | 140,554 |
| Members of the Arab League | 0 | - | 4.77 | 75,547 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 69,714 |
| Separatist Movements | 0 | - | 4.44 | 45,764 |
| Countries with the Best Passports | 0 | - | 4.73 | 84,904 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,707 |
| Next Country Alphabetically | 0 | - | 4.70 | 86,089 |
| Westernmost Countries | 0 | - | 4.50 | 49,484 |
| Easternmost Countries | 0 | - | 4.75 | 62,758 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 39,561 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 108,238 |
| Indochina Countries | 0 | - | 4.74 | 66,051 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,567 |
| Countries With the Most Conflict Deaths | 0 | - | 4.61 | 96,182 |
| Highest Foreign Aid Recipients | 0 | - | 4.67 | 43,928 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 57,029 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 48,293 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 53,552 |
| Countries that are the Source of Refugees | 0 | - | 4.68 | 60,724 |
| Countries 206 to 242 | 0 | - | 4.74 | 33,827 |
| Most Populous Countries By Category | 0 | - | 4.55 | 85,190 |
| Countries with the Most Turkic People | 0 | - | 4.75 | 45,551 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.74 | 61,406 |
| Flyover Countries | 0 | - | 4.68 | 50,677 |
| Top 50 Countries by Area - In Order | 0 | - | 4.73 | 73,642 |
