| Spanish-Speaking Countries | 0 | - | 4.94 | 338,788 |
| Countries by Official Language | 0 | - | 4.95 | 153,599 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 246,988 |
| Countries in their Native Language | 0 | - | 4.98 | 177,102 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 90,079 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 317,994 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,506,259 |
| German-Speaking Countries | 0 | - | 4.88 | 117,190 |
| Countries on the Equator | 0 | - | 4.82 | 132,831 |
| Members of the Arab League | 0 | - | 4.82 | 59,444 |
| Sahara Desert Countries | 0 | - | 4.97 | 125,268 |
| Himalayan Countries | 0 | - | 4.95 | 102,617 |
| Andean Countries | 0 | - | 4.90 | 57,017 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 57,864 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,616 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 101,943 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,581 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,779 |
| Danube Countries | 0 | - | 4.97 | 56,374 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,425 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,619 |
| Countries with the Best Passports | 0 | - | 4.87 | 70,413 |
| Countries with the Worst Passports | 0 | - | 4.87 | 48,830 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,452 |
| European Landlocked Countries | 0 | - | 4.99 | 114,861 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,808 |
| Countries with the Most Species | 0 | - | 4.99 | 89,098 |
| Countries 197 to 205 | 0 | - | 4.88 | 55,874 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,459 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,830 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,800 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,145 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 58,477 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,721 |
| Countries in the Alps | 0 | - | 4.82 | 101,896 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,712 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 85,896 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,156 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,774 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,415 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,105 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,098 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,787 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,084 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,206 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 68,947 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,346 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,432 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,020 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,538 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,019 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,726 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 60,984 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 52,990 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 193,052 |
| World Countries - Blind Typing | 0 | - | 5.00 | 71,520 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 41,988 |
| Largest Countries By Category | 0 | - | 4.96 | 143,975 |
| Countries by Countries | 0 | - | 4.96 | 54,137 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,023,679 |
| Country Flags with the Most White | 0 | - | 4.90 | 107,761 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,404 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 77,431 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 117,983 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 352,100 |
| Island Countries Quiz | 0 | - | 4.99 | 639,097 |
| Biggest Countries by Area | 0 | - | 5.00 | 925,541 |
| Northernmost Countries | 0 | - | 4.99 | 325,475 |
| Countries of South America | 0 | - | 5.00 | 784,469 |
| Countries of Oceania | 0 | - | 5.00 | 883,092 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,113,052 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,553,711 |
| Top World Languages | 0 | - | 4.91 | 699,761 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 124,312 |
| Countries with Megacities | 0 | - | 4.99 | 194,985 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,642 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,956 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,824 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,806 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 245,322 |
| Independence from Whom | 0 | - | 4.99 | 183,854 |
| Subdivisions by Country | 0 | - | 4.82 | 46,205 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 112,300 |
| Megadiverse Countries | 0 | - | 4.96 | 124,815 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 106,059 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,147 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 130,165 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 48,771 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 76,928 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,359 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,543 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,999 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 43,059 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 100,859 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,399 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,515 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 67,975 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,790 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 80,327 |
| World Map Quiz | 0 | - | 4.90 | 48,220 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 110,898 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 80,820 |
| Southernmost Countries of the World | 0 | - | 4.99 | 205,455 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,191 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,143 |
| Countries With the Most Languages | 0 | - | 4.90 | 171,759 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.92 | 86,615 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 70,936 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 85,546 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,361 |
| Tallest Countries North to South | 0 | - | 4.84 | 109,898 |
| Widest Countries East to West | 0 | - | 4.93 | 118,783 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,692 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 157,975 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,133 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 84,850 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 118,167 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,581 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,275 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 31,875 |
| Countries with Double Letters | 0 | - | 4.96 | 67,089 |
| Countries that End in N | 0 | - | 4.94 | 131,544 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 228,018 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 185,799 |
| Countries with W | 0 | - | 4.97 | 121,807 |
| Countries with Z | 0 | - | 4.98 | 242,704 |
| Countries with Letters Missing | 0 | - | 4.97 | 154,721 |
| Countries That End in U | 0 | - | 4.94 | 107,038 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 88,441 |
| Countries that End in O | 0 | - | 4.92 | 146,467 |
| Countries that End in R | 0 | - | 4.86 | 96,161 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,914 |
| Countries Ending in "IA" | 0 | - | 4.99 | 169,710 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 154,955 |
| Countries by Last Two Letters | 0 | - | 4.90 | 115,646 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 128,581 |
| Countries That End in Y | 0 | - | 4.90 | 160,847 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 159,757 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 119,923 |
| Countries that End in I | 0 | - | 4.92 | 114,200 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 148,541 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 87,858 |
| Countries That End in NIA | 0 | - | 4.93 | 100,375 |
| Countries That End in BIA | 0 | - | 4.91 | 125,434 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 152,470 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,118 |
| Countries That End in RIA | 0 | - | 4.89 | 100,516 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 99,814 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 198,910 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 118,745 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 109,546 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 76,467 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 91,612 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 95,996 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 42,431 |
| Countries with the Word "And" | 0 | - | 4.98 | 82,664 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 39,878 |
| Countries that End in L | 0 | - | 4.95 | 133,437 |
| "Land" Countries | 0 | - | 4.98 | 288,029 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 187,890 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,083 |
| City to Country Quiz #1 | 0 | - | 4.94 | 133,820 |
| City to Country Quiz #3 | 0 | - | 4.86 | 99,798 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,149 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 206,376 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 157,567 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 115,749 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 131,702 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 192,125 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 140,033 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,452 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 91,702 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 81,929 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 55,615 |
| Places in their Native Language #1 | 0 | - | 4.87 | 209,098 |
| Places in their Native Language #2 | 0 | - | 4.88 | 112,379 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,303,044 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,708 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,037,964 |
| One Border Countries | 0 | - | 4.98 | 406,857 |
| French-Speaking Countries Quiz | 0 | - | 4.76 | 211,753 |
| Countries With the Most Italian Speakers | 0 | - | 4.52 | 50,276 |
| Countries With One Word and Three A's | 0 | - | 4.84 | 30,270 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,360,691 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 65,424 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 243,597 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,292 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,523 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 64,480 |
| Capitals in their Native Languages | 0 | - | 4.95 | 127,225 |
| Countries by National Anthem | 0 | - | 4.94 | 61,649 |
| NATO Countries Quiz | 0 | - | 4.98 | 223,869 |
| EU Countries Quiz | 0 | - | 4.99 | 226,301 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 143,726 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 77,209 |
| Countries That Use the Euro | 0 | - | 4.91 | 61,651 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 224,499 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 216,185 |
| Countries with Wild Tigers | 0 | - | 4.95 | 110,364 |
| Countries with Wild Penguins | 0 | - | 4.93 | 89,729 |
