| Spanish-Speaking Countries | 0 | - | 4.95 | 360,345 |
| Countries by Official Language | 0 | - | 4.95 | 184,218 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 282,272 |
| Countries in their Native Language | 0 | - | 4.98 | 188,989 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 122,279 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 383,120 |
| Countries of the World Quiz | 0 | - | 5.00 | 44,350,288 |
| French-Speaking Countries | 0 | - | 4.85 | 258,030 |
| German-Speaking Countries | 0 | - | 4.89 | 121,187 |
| Sahara Desert Countries | 0 | - | 4.97 | 145,702 |
| Himalayan Countries | 0 | - | 4.94 | 122,358 |
| Andean Countries | 0 | - | 4.93 | 68,766 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 56,731 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 113,168 |
| Coffee Producing Countries | 0 | - | 4.83 | 59,954 |
| Countries with Shrinking Populations | 0 | - | 4.92 | 59,347 |
| Danube Countries | 0 | - | 4.97 | 60,865 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 96,900 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 81,921 |
| Countries with the Best Passports | 0 | - | 4.82 | 80,754 |
| Countries with the Worst Passports | 0 | - | 4.89 | 69,642 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 138,303 |
| European Landlocked Countries | 0 | - | 4.99 | 141,047 |
| Partially Recognized Countries | 0 | - | 4.98 | 98,144 |
| Countries with the Most Species | 0 | - | 4.99 | 92,353 |
| Countries 197 to 205 | 0 | - | 4.87 | 63,524 |
| Tropic of Cancer Countries | 0 | - | 4.95 | 46,704 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 45,800 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 52,594 |
| Countries that Use the Peso | 0 | - | 4.88 | 56,370 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 69,961 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 53,668 |
| Countries in the Alps | 0 | - | 4.86 | 110,475 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 90,750 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 97,883 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 75,410 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 83,773 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 110,658 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 91,973 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 95,030 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 49,868 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 47,985 |
| Countries with the Most Container Port Traffic | 0 | - | 4.91 | 58,817 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 72,746 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 51,278 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.89 | 39,108 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 100,175 |
| Arctic Ocean Countries | 0 | - | 4.94 | 75,861 |
| Countries with the Most Grassland | 0 | - | 4.93 | 73,557 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 109,078 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 64,833 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 56,767 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 222,234 |
| World Countries - Blind Typing | 0 | - | 5.00 | 95,198 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 45,126 |
| Largest Countries By Category | 0 | - | 4.97 | 151,441 |
| Countries by Countries | 0 | - | 4.96 | 58,481 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,408,888 |
| Country Flags with the Most White | 0 | - | 4.87 | 132,114 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,670 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 46,332 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 83,975 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,477,284 |
| Spanish to English Country Names | 0 | - | 4.86 | 27,174 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 121,866 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 382,531 |
| Island Countries Quiz | 0 | - | 4.99 | 691,045 |
| Biggest Countries by Area | 0 | - | 5.00 | 990,203 |
| Northernmost Countries | 0 | - | 4.99 | 342,828 |
| Countries of South America | 0 | - | 5.00 | 863,532 |
| Countries of Oceania | 0 | - | 5.00 | 976,452 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,732,423 |
| Top World Languages | 0 | - | 4.91 | 769,559 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.70 | 108,906 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,259,534 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 159,087 |
| Countries with Megacities | 0 | - | 4.99 | 218,344 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 186,937 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 106,336 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 126,810 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 73,343 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 270,198 |
| Independence from Whom | 0 | - | 4.99 | 200,004 |
| Subdivisions by Country | 0 | - | 4.86 | 48,545 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 123,857 |
| Megadiverse Countries | 0 | - | 4.96 | 130,535 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 121,882 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 49,345 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 155,528 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 59,513 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 86,898 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 149,351 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 80,476 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,435 |
| Countries by Sports League Revenue | 0 | - | 4.93 | 67,625 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 104,899 |
| Countries Furthest from the United States | 0 | - | 4.95 | 86,004 |
| Countries with the Highest HDI | 0 | - | 4.95 | 134,252 |
| Straight Shot to the Arctic Circle | 0 | - | 4.89 | 72,197 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 68,668 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 98,347 |
| World Map Quiz | 0 | - | 4.88 | 57,793 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 135,366 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 86,811 |
| Countries by Founding Story | 0 | - | 4.94 | 72,921 |
| Southernmost Countries of the World | 0 | - | 4.99 | 218,735 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 98,825 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 116,670 |
| Countries With the Most Languages | 0 | - | 4.89 | 189,459 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 92,588 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 88,662 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 93,663 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 58,418 |
| Tallest Countries North to South | 0 | - | 4.85 | 115,686 |
| Widest Countries East to West | 0 | - | 4.92 | 124,829 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,213 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 180,240 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,491 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 90,342 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 125,518 |
| Countries with the Most Desert | 0 | - | 4.93 | 123,430 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 68,056 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 33,584 |
| Countries with Double Letters | 0 | - | 4.96 | 82,492 |
| Countries that End in N | 0 | - | 4.93 | 146,415 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 246,395 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 200,796 |
| Countries with W | 0 | - | 4.97 | 149,868 |
| Countries with Z | 0 | - | 4.98 | 276,322 |
| Countries with Letters Missing | 0 | - | 4.97 | 176,711 |
| Countries That End in U | 0 | - | 4.95 | 114,472 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 100,804 |
| Countries that End in O | 0 | - | 4.91 | 154,558 |
| Countries that End in R | 0 | - | 4.84 | 100,045 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 152,020 |
| Countries Ending in "IA" | 0 | - | 4.99 | 198,367 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 163,491 |
| Countries by Last Two Letters | 0 | - | 4.87 | 121,971 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 135,736 |
| Countries That End in Y | 0 | - | 4.91 | 182,222 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 189,435 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 127,652 |
| Countries that End in I | 0 | - | 4.92 | 117,526 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 158,563 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 92,294 |
| Countries That End in NIA | 0 | - | 4.92 | 105,215 |
| Countries That End in BIA | 0 | - | 4.92 | 142,874 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 161,398 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 114,878 |
| Countries That End in RIA | 0 | - | 4.89 | 105,587 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 106,030 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 215,623 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 127,427 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 119,279 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 85,130 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 71,291 |
| Countries With One Word and Three A's | 0 | - | 4.94 | 48,721 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 98,231 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 120,139 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 46,355 |
| Countries with the Word "And" | 0 | - | 4.98 | 89,993 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 47,929 |
| Countries that End in L | 0 | - | 4.94 | 151,918 |
| "Land" Countries | 0 | - | 4.98 | 299,858 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 197,735 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 83,972 |
| City to Country Quiz #1 | 0 | - | 4.96 | 150,706 |
| City to Country Quiz #3 | 0 | - | 4.87 | 104,818 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 75,690 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 219,777 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 192,772 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 122,334 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 150,352 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 216,399 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.97 | 147,438 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 68,887 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 106,050 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 84,904 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 59,855 |
| Places in their Native Language #1 | 0 | - | 4.85 | 231,838 |
| Places in their Native Language #2 | 0 | - | 4.89 | 119,251 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,382,340 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 364,984 |
| One Border Countries | 0 | - | 4.98 | 445,357 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 54,094 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,634,514 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 82,010 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 257,653 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 116,043 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 107,911 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 88,312 |
| Countries by Population Range - Tile Select | 0 | - | 4.85 | 55,035 |
| Capitals in their Native Languages | 0 | - | 4.94 | 130,238 |
| Countries by National Anthem | 0 | - | 4.92 | 69,932 |
| NATO Countries Quiz | 0 | - | 4.98 | 257,928 |
| EU Countries Quiz | 0 | - | 4.99 | 254,694 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 152,321 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 80,814 |
| Countries That Use the Euro | 0 | - | 4.93 | 76,115 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 267,379 |
