| Spanish-Speaking Countries | 0 | - | 4.94 | 343,279 |
| Countries by Official Language | 0 | - | 4.96 | 174,339 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 251,516 |
| Countries in their Native Language | 0 | - | 4.98 | 179,513 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 92,641 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,429,694 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 330,519 |
| English Speaking Countries | 0 | - | 4.72 | 340,645 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,131,344 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,198,562 |
| Members of the Arab League | 0 | - | 4.85 | 64,818 |
| Sahara Desert Countries | 0 | - | 4.97 | 129,088 |
| Himalayan Countries | 0 | - | 4.95 | 107,035 |
| Andean Countries | 0 | - | 4.91 | 59,548 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 60,604 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,332 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 103,723 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,578 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,889 |
| Danube Countries | 0 | - | 4.96 | 57,020 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,038 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,129 |
| Countries with the Best Passports | 0 | - | 4.87 | 72,135 |
| Countries with the Worst Passports | 0 | - | 4.88 | 50,005 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 110,289 |
| European Landlocked Countries | 0 | - | 4.99 | 136,636 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,412 |
| Countries with the Most Species | 0 | - | 4.99 | 89,727 |
| Countries 197 to 205 | 0 | - | 4.87 | 56,918 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,900 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,194 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,748 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,684 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,964 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,591 |
| Countries in the Alps | 0 | - | 4.84 | 103,395 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,005 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 88,518 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,003 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,065 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,547 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,032 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,189 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,532 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,554 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,126 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,887 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,847 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,889 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,244 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,395 |
| Countries with the Most Grassland | 0 | - | 4.94 | 69,965 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 99,556 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,713 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 53,789 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 199,861 |
| World Countries - Blind Typing | 0 | - | 5.00 | 74,315 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,619 |
| Largest Countries By Category | 0 | - | 4.97 | 145,856 |
| Countries by Countries | 0 | - | 4.96 | 55,218 |
| Country Flags with the Most White | 0 | - | 4.90 | 125,519 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,013 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 44,959 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,030 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 119,118 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 359,700 |
| Island Countries Quiz | 0 | - | 4.99 | 665,405 |
| Biggest Countries by Area | 0 | - | 5.00 | 941,420 |
| Northernmost Countries | 0 | - | 4.99 | 329,547 |
| Countries of South America | 0 | - | 5.00 | 803,419 |
| Countries of Oceania | 0 | - | 5.00 | 905,475 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,595,639 |
| Top World Languages | 0 | - | 4.92 | 717,231 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.71 | 105,222 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 127,796 |
| Countries with Megacities | 0 | - | 4.99 | 200,088 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 173,639 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,109 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 97,174 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 65,091 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 250,909 |
| Independence from Whom | 0 | - | 4.99 | 187,782 |
| Subdivisions by Country | 0 | - | 4.82 | 46,722 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 114,745 |
| Megadiverse Countries | 0 | - | 4.96 | 126,222 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,204 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,659 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 132,448 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,567 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 78,931 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,737 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,430 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,701 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 44,563 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,996 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,638 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,180 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,076 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,707 |
| Countries of the World in Alphabetical Order | 0 | - | 4.99 | 84,680 |
| World Map Quiz | 0 | - | 4.91 | 50,602 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 116,446 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 82,234 |
| Southernmost Countries of the World | 0 | - | 4.99 | 208,703 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 92,011 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 109,255 |
| Countries With the Most Languages | 0 | - | 4.91 | 175,979 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,133 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 72,524 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 87,601 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 54,650 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,125 |
| Widest Countries East to West | 0 | - | 4.93 | 120,084 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,014 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 159,911 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,439 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,045 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,216 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,118 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,819 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,658 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,273 |
| Countries with Double Letters | 0 | - | 4.96 | 70,182 |
| Countries that End in N | 0 | - | 4.94 | 134,404 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 231,753 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 189,118 |
| Countries with W | 0 | - | 4.96 | 124,309 |
| Countries with Z | 0 | - | 4.98 | 246,443 |
| Countries with Letters Missing | 0 | - | 4.97 | 168,556 |
| Countries That End in U | 0 | - | 4.95 | 108,420 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 90,977 |
| Countries that End in O | 0 | - | 4.92 | 147,949 |
| Countries that End in R | 0 | - | 4.84 | 96,903 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,707 |
| Countries Ending in "IA" | 0 | - | 4.99 | 172,880 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 157,031 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,218 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 130,145 |
| Countries That End in Y | 0 | - | 4.90 | 162,052 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 162,189 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 121,837 |
| Countries that End in I | 0 | - | 4.92 | 114,908 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 150,729 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 89,015 |
| Countries That End in NIA | 0 | - | 4.93 | 101,433 |
| Countries That End in BIA | 0 | - | 4.91 | 126,826 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 154,430 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 110,473 |
| Countries That End in RIA | 0 | - | 4.90 | 101,536 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 101,192 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 203,177 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 120,849 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 111,914 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 78,521 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 93,320 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 97,563 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,343 |
| Countries with the Word "And" | 0 | - | 4.98 | 84,409 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 41,756 |
| Countries that End in L | 0 | - | 4.95 | 135,337 |
| "Land" Countries | 0 | - | 4.98 | 291,419 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 190,560 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,317 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,913 |
| City to Country Quiz #3 | 0 | - | 4.87 | 100,722 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 72,220 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 209,975 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 169,100 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 117,278 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 134,148 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 195,378 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 141,740 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 66,317 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.84 | 102,882 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,902 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 57,019 |
| Places in their Native Language #1 | 0 | - | 4.86 | 212,255 |
| Places in their Native Language #2 | 0 | - | 4.88 | 113,914 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,321,610 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 351,854 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,096,152 |
| One Border Countries | 0 | - | 4.98 | 413,062 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,438,635 |
| French-Speaking Countries Quiz | 0 | - | 4.78 | 214,241 |
| Countries With the Most Italian Speakers | 0 | - | 4.51 | 51,278 |
| Countries With One Word and Three A's | 0 | - | 4.87 | 31,459 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,900 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 247,017 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 109,925 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 103,933 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 71,542 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 51,011 |
| Capitals in their Native Languages | 0 | - | 4.94 | 127,786 |
| Countries by National Anthem | 0 | - | 4.95 | 62,055 |
| NATO Countries Quiz | 0 | - | 4.98 | 227,883 |
| EU Countries Quiz | 0 | - | 4.99 | 230,071 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 145,581 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 78,187 |
| Countries That Use the Euro | 0 | - | 4.93 | 64,935 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 227,882 |
