| Spanish-Speaking Countries | 0 | - | 4.94 | 343,193 |
| Countries by Official Language | 0 | - | 4.96 | 174,289 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 251,440 |
| Countries in their Native Language | 0 | - | 4.98 | 179,482 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 92,601 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,413,136 |
| German-Speaking Countries | 0 | - | 4.88 | 117,980 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 330,305 |
| English Speaking Countries | 0 | - | 4.72 | 340,589 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,129,307 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,196,972 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 119,100 |
| Members of the Arab League | 0 | - | 4.85 | 64,737 |
| Sahara Desert Countries | 0 | - | 4.97 | 129,019 |
| Himalayan Countries | 0 | - | 4.95 | 106,976 |
| Andean Countries | 0 | - | 4.91 | 59,499 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 60,565 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,314 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 103,682 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,571 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,867 |
| Danube Countries | 0 | - | 4.96 | 57,009 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,025 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,122 |
| Countries with the Best Passports | 0 | - | 4.87 | 72,105 |
| Countries with the Worst Passports | 0 | - | 4.88 | 49,983 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 110,265 |
| European Landlocked Countries | 0 | - | 4.99 | 136,585 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,391 |
| Countries with the Most Species | 0 | - | 4.99 | 89,714 |
| Countries 197 to 205 | 0 | - | 4.87 | 56,892 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,894 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,189 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,737 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,675 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,952 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,567 |
| Countries in the Alps | 0 | - | 4.84 | 103,364 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,972 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 88,475 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,987 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,046 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,524 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,012 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,175 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,517 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,545 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,111 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,872 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,833 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,882 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,223 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,387 |
| Countries with the Most Grassland | 0 | - | 4.94 | 69,945 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 99,505 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,694 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 53,779 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 199,723 |
| World Countries - Blind Typing | 0 | - | 5.00 | 74,251 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,602 |
| Largest Countries By Category | 0 | - | 4.97 | 145,817 |
| Countries by Countries | 0 | - | 4.96 | 55,198 |
| Country Flags with the Most White | 0 | - | 4.90 | 125,484 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,997 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 44,945 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,012 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 359,550 |
| Island Countries Quiz | 0 | - | 4.99 | 665,230 |
| Biggest Countries by Area | 0 | - | 5.00 | 941,067 |
| Northernmost Countries | 0 | - | 4.99 | 329,484 |
| Countries of South America | 0 | - | 5.00 | 803,106 |
| Countries of Oceania | 0 | - | 5.00 | 905,109 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,594,790 |
| Top World Languages | 0 | - | 4.92 | 716,919 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.71 | 105,203 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 127,745 |
| Countries with Megacities | 0 | - | 4.99 | 200,009 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 173,563 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,068 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 97,122 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 65,051 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 250,795 |
| Independence from Whom | 0 | - | 4.99 | 187,716 |
| Subdivisions by Country | 0 | - | 4.82 | 46,715 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 114,700 |
| Megadiverse Countries | 0 | - | 4.96 | 126,206 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,185 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,652 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 132,416 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,547 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 78,895 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,720 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,416 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,694 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 44,525 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,982 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,622 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,173 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,054 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,692 |
| Countries of the World in Alphabetical Order | 0 | - | 4.99 | 84,602 |
| World Map Quiz | 0 | - | 4.91 | 50,554 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 116,326 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 82,212 |
| Southernmost Countries of the World | 0 | - | 4.99 | 208,655 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 91,977 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 109,231 |
| Countries With the Most Languages | 0 | - | 4.91 | 175,927 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,113 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 72,502 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 87,569 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 54,626 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,101 |
| Widest Countries East to West | 0 | - | 4.93 | 120,066 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,010 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 159,885 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,413 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,025 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,194 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,087 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,796 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,649 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,265 |
| Countries with Double Letters | 0 | - | 4.96 | 70,122 |
| Countries that End in N | 0 | - | 4.94 | 134,335 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 231,710 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 189,068 |
| Countries with W | 0 | - | 4.96 | 124,271 |
| Countries with Z | 0 | - | 4.98 | 246,378 |
| Countries with Letters Missing | 0 | - | 4.97 | 168,506 |
| Countries That End in U | 0 | - | 4.95 | 108,391 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 90,931 |
| Countries that End in O | 0 | - | 4.92 | 147,923 |
| Countries that End in R | 0 | - | 4.84 | 96,890 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,690 |
| Countries Ending in "IA" | 0 | - | 4.99 | 172,836 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 156,997 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,177 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 130,118 |
| Countries That End in Y | 0 | - | 4.90 | 162,041 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 162,143 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 121,814 |
| Countries that End in I | 0 | - | 4.92 | 114,891 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 150,694 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,995 |
| Countries That End in NIA | 0 | - | 4.93 | 101,411 |
| Countries That End in BIA | 0 | - | 4.91 | 126,803 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 154,359 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 110,443 |
| Countries That End in RIA | 0 | - | 4.90 | 101,521 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 101,173 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 203,094 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 120,801 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 111,873 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 78,487 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 93,265 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 97,532 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,323 |
| Countries with the Word "And" | 0 | - | 4.98 | 84,374 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 41,711 |
| Countries that End in L | 0 | - | 4.95 | 135,307 |
| "Land" Countries | 0 | - | 4.98 | 291,373 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 190,520 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,312 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,897 |
| City to Country Quiz #3 | 0 | - | 4.86 | 100,707 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 72,202 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 209,905 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 169,022 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 117,252 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 134,114 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 195,334 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 141,706 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 66,301 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.84 | 102,858 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,883 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 56,999 |
| Places in their Native Language #1 | 0 | - | 4.86 | 212,202 |
| Places in their Native Language #2 | 0 | - | 4.88 | 113,891 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,321,209 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 351,622 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,095,015 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,436,436 |
| One Border Countries | 0 | - | 4.98 | 412,962 |
| French-Speaking Countries Quiz | 0 | - | 4.78 | 214,196 |
| Countries With the Most Italian Speakers | 0 | - | 4.51 | 51,262 |
| Countries With One Word and Three A's | 0 | - | 4.87 | 31,436 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,864 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 246,961 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 109,897 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 103,913 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 71,494 |
| Capitals in their Native Languages | 0 | - | 4.94 | 127,774 |
| Countries by National Anthem | 0 | - | 4.95 | 62,045 |
| NATO Countries Quiz | 0 | - | 4.98 | 227,789 |
| EU Countries Quiz | 0 | - | 4.99 | 230,003 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 145,540 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 78,181 |
| Countries That Use the Euro | 0 | - | 4.93 | 64,873 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 227,815 |
