| Spanish-Speaking Countries | 0 | - | 4.95 | 376,000 |
| Countries by Official Language | 0 | - | 4.95 | 195,566 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,829 |
| Countries in their Native Language | 0 | - | 4.99 | 199,345 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,367 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,559 |
| Landlocked Countries | 0 | - | 4.99 | 423,494 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,704,828 |
| French-Speaking Countries | 0 | - | 4.85 | 271,223 |
| German-Speaking Countries | 0 | - | 4.92 | 145,877 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,586 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,206 |
| Himalayan Countries | 0 | - | 4.94 | 139,397 |
| Andean Countries | 0 | - | 4.94 | 84,979 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,185 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,361 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,750 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,068 |
| Danube Countries | 0 | - | 4.97 | 72,177 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,259 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,582 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,637 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,141 |
| European Landlocked Countries | 0 | - | 4.99 | 147,332 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,913 |
| Countries with the Most Species | 0 | - | 4.99 | 103,392 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,058 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,668 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,778 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,656 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,415 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,814 |
| Countries in the Alps | 0 | - | 4.87 | 118,441 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,951 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,384 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,788 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,774 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,692 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,077 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,872 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,641 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,281 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,997 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,748 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,616 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,360 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,611 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,682 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,285 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,447 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,055 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,308 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,759 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,566 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,355 |
| Largest Countries By Category | 0 | - | 4.97 | 158,498 |
| Countries by Countries | 0 | - | 4.96 | 63,412 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,943 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,338 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,606 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,179 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,853 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,789,585 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,812 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,922 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,324 |
| Island Countries | 0 | - | 4.99 | 711,621 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,051,924 |
| Northernmost Countries | 0 | - | 4.99 | 362,810 |
| Countries of South America | 0 | - | 5.00 | 929,536 |
| Countries of Oceania | 0 | - | 5.00 | 1,059,635 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,882,224 |
| "Land" Countries | 0 | - | 4.98 | 337,780 |
| Top World Languages | 0 | - | 4.92 | 826,661 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,957 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,387,637 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,363 |
| Countries with Megacities | 0 | - | 4.99 | 265,649 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,146 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,711 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,421 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,787 |
| Independence from Whom | 0 | - | 4.99 | 212,474 |
| Subdivisions by Country | 0 | - | 4.87 | 50,514 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,014 |
| Megadiverse Countries | 0 | - | 4.96 | 135,131 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,441 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,326 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,154 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,327 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,678 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,679 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,452 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,732 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,198 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,013 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,989 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,303 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,041 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,463 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,584 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,708 |
| World Map Quiz | 0 | - | 4.81 | 65,316 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,074 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,505 |
| Countries by Founding Story | 0 | - | 4.95 | 77,502 |
| Countries by Road Signs | 0 | - | 4.98 | 54,171 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,492 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,538 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,233 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,809 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 111,122 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,244 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,473 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,543 |
| Tallest Countries North to South | 0 | - | 4.83 | 125,429 |
| Widest Countries East to West | 0 | - | 4.92 | 129,979 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,499 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,969 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,419 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,886 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,770 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,032 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,434 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,834 |
| Countries with Double Letters | 0 | - | 4.96 | 96,591 |
| Countries that End in N | 0 | - | 4.95 | 171,486 |
| Countries with Five Letters | 0 | - | 4.96 | 283,075 |
| Countries with Six Letters | 0 | - | 4.94 | 213,941 |
| Countries with W | 0 | - | 4.96 | 160,575 |
| Countries with Z | 0 | - | 4.98 | 291,856 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,953 |
| Countries That End in U | 0 | - | 4.95 | 120,989 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,736 |
| Countries that End in O | 0 | - | 4.92 | 159,643 |
| Countries that End in R | 0 | - | 4.87 | 119,055 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,811 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,410 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,886 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,626 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,538 |
| Countries That End in Y | 0 | - | 4.91 | 185,971 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,139 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,038 |
| Countries that End in I | 0 | - | 4.94 | 135,195 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,324 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,912 |
| Countries That End in NIA | 0 | - | 4.92 | 109,883 |
| Countries That End in BIA | 0 | - | 4.93 | 149,363 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,289 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,575 |
| Countries That End in RIA | 0 | - | 4.93 | 126,917 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,171 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,998 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,911 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,343 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,895 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,663 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,162 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,479 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,672 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,529 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,468 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,166 |
| Countries that End in L | 0 | - | 4.94 | 156,966 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,515 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,301 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,131 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,058 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,107 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,039 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,876 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,275 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,020 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,678 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,027 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,163 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,748 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,087 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,861 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,450,714 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,574 |
| One Border Countries | 0 | - | 4.98 | 470,759 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 58,103 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,840,717 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,640,917 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,086 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,546 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,379 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,700 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,928 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,367 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,573 |
| Countries by National Anthem | 0 | - | 4.93 | 71,349 |
| NATO Countries | 0 | - | 4.98 | 282,297 |
| EU Countries Quiz | 0 | - | 4.99 | 276,462 |
| Recently Independent Countries | 0 | - | 4.98 | 159,670 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,963 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,101 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 290,109 |
