| Landlocked Countries | 0 | - | 4.99 | 421,146 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,513,782 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,036 |
| Himalayan Countries | 0 | - | 4.95 | 138,349 |
| Andean Countries | 0 | - | 4.93 | 84,393 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,613 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,532 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,242 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,646 |
| Danube Countries | 0 | - | 4.97 | 71,911 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,892 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,315 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,127 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,585 |
| European Landlocked Countries | 0 | - | 4.99 | 147,041 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,476 |
| Countries with the Most Species | 0 | - | 4.99 | 103,155 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,634 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,537 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,680 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,479 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,160 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,574 |
| Countries in the Alps | 0 | - | 4.87 | 118,060 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,468 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,862 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,589 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,516 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,399 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,880 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,562 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,417 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,120 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,762 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,589 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,456 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,130 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,396 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,430 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,694 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,228 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,732 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,913 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,511 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,851 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,153 |
| Largest Countries By Category | 0 | - | 4.97 | 158,045 |
| Countries by Countries | 0 | - | 4.96 | 63,095 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,563 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,244 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,537 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,580 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,772,389 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,849 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,277 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,684 |
| Island Countries | 0 | - | 4.99 | 710,711 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,737 |
| Northernmost Countries | 0 | - | 4.99 | 361,566 |
| Countries of South America | 0 | - | 5.00 | 926,031 |
| Countries of Oceania | 0 | - | 5.00 | 1,055,287 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,874,325 |
| "Land" Countries | 0 | - | 4.98 | 337,055 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,668 |
| Countries with Megacities | 0 | - | 4.99 | 263,970 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,514 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,345 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,781 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,404 |
| Countries by Official Language | 0 | - | 4.95 | 195,071 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,146 |
| Countries in their Native Language | 0 | - | 4.99 | 198,692 |
| Independence from Whom | 0 | - | 4.99 | 211,884 |
| Subdivisions by Country | 0 | - | 4.86 | 50,388 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,583 |
| Megadiverse Countries | 0 | - | 4.96 | 134,941 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,930 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,298 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,877 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,077 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,005 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,547 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,343 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,982 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,600 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,053 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,502 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,830 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,143 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,914 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,300 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,445 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,381,453 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,923 |
| World Map Quiz | 0 | - | 4.81 | 64,971 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,787 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,268 |
| Countries by Founding Story | 0 | - | 4.95 | 77,295 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,919 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,176 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,903 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,977 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,809 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,929 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,229 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,394 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,506 |
| Widest Countries East to West | 0 | - | 4.92 | 129,567 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,432 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,274 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,088 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,700 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,486 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,769 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,335 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,782 |
| Countries with Double Letters | 0 | - | 4.96 | 95,985 |
| Countries that End in N | 0 | - | 4.95 | 170,887 |
| Countries with Five Letters | 0 | - | 4.96 | 282,020 |
| Countries with Six Letters | 0 | - | 4.94 | 213,307 |
| Countries with W | 0 | - | 4.97 | 160,146 |
| Countries with Z | 0 | - | 4.98 | 291,177 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,510 |
| Countries That End in U | 0 | - | 4.95 | 120,747 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,276 |
| Countries that End in O | 0 | - | 4.92 | 159,438 |
| Countries that End in R | 0 | - | 4.87 | 118,908 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,673 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,873 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,567 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,386 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,302 |
| Countries That End in Y | 0 | - | 4.91 | 185,811 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,766 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,737 |
| Countries that End in I | 0 | - | 4.94 | 135,033 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,935 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,757 |
| Countries That End in NIA | 0 | - | 4.92 | 109,708 |
| Countries That End in BIA | 0 | - | 4.93 | 149,103 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,002 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,328 |
| Countries That End in RIA | 0 | - | 4.93 | 126,741 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,921 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,329 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,555 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,955 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,522 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,517 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,933 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,416 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,434 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,367 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,169 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,861 |
| Countries that End in L | 0 | - | 4.94 | 156,750 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,242 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,239 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,957 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,893 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,923 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,573 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,533 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,897 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,424 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,294 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,794 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,053 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,671 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,815 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,794 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,621 |
| One Border Countries | 0 | - | 4.98 | 469,164 |
| Top Producing Countries | 0 | - | 4.63 | 116,232 |
| ISO Country Codes | 0 | - | 4.48 | 90,924 |
| Countries on the Equator | 0 | - | 4.63 | 140,782 |
| Members of the Arab League | 0 | - | 4.77 | 75,622 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 69,882 |
| Separatist Movements | 0 | - | 4.45 | 45,884 |
| Countries with the Best Passports | 0 | - | 4.73 | 85,203 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,812 |
| Next Country Alphabetically | 0 | - | 4.70 | 86,251 |
| Westernmost Countries | 0 | - | 4.42 | 62,350 |
| Easternmost Countries | 0 | - | 4.75 | 62,889 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 39,646 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 108,597 |
| Indochina Countries | 0 | - | 4.74 | 66,166 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,622 |
| Countries With the Most Conflict Deaths | 0 | - | 4.61 | 96,343 |
| Highest Foreign Aid Recipients | 0 | - | 4.67 | 43,974 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 57,088 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 48,385 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 53,680 |
| Countries that are the Source of Refugees | 0 | - | 4.68 | 60,883 |
| Countries 206 to 242 | 0 | - | 4.74 | 33,937 |
| Most Populous Countries By Category | 0 | - | 4.55 | 85,416 |
| Countries with the Most Turkic People | 0 | - | 4.75 | 45,691 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.74 | 61,568 |
| Flyover Countries | 0 | - | 4.69 | 50,801 |
| Top 50 Countries by Area - In Order | 0 | - | 4.73 | 73,910 |
