| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,524 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,853 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,283 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,111 |
| Landlocked Countries | 0 | - | 4.99 | 415,101 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,036,076 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,801 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,184 |
| Himalayan Countries | 0 | - | 4.95 | 135,891 |
| Andean Countries | 0 | - | 4.94 | 83,122 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,449 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,563 |
| Coffee Producing Countries | 0 | - | 4.82 | 66,152 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,802 |
| Danube Countries | 0 | - | 4.97 | 71,242 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,961 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,682 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,813 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,733 |
| European Landlocked Countries | 0 | - | 4.99 | 145,942 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,474 |
| Countries with the Most Species | 0 | - | 4.99 | 95,325 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,608 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,255 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,430 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,047 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,701 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,058 |
| Countries in the Alps | 0 | - | 4.86 | 117,083 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,732 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,542 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,142 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,562 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,348 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,125 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,763 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,880 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,665 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,191 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,262 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,129 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,599 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,858 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,873 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,406 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,776 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,341 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,985 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,129 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,118 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,710 |
| Largest Countries By Category | 0 | - | 4.97 | 156,987 |
| Countries by Countries | 0 | - | 4.96 | 62,417 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,624 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,012 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,374 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,213 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,252 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,916 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,728,765 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,615 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,666 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,630 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,410 |
| Northernmost Countries | 0 | - | 4.99 | 358,575 |
| Countries of South America | 0 | - | 5.00 | 917,404 |
| Countries of Oceania | 0 | - | 5.00 | 1,043,572 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,853,408 |
| "Land" Countries | 0 | - | 4.98 | 334,037 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,366,308 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,839 |
| Countries with Megacities | 0 | - | 4.99 | 248,047 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,712 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,307 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,094 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,262 |
| Countries by Official Language | 0 | - | 4.95 | 193,107 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,606 |
| Countries in their Native Language | 0 | - | 4.99 | 196,953 |
| Independence from Whom | 0 | - | 4.99 | 210,086 |
| Subdivisions by Country | 0 | - | 4.86 | 50,130 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,026 |
| Megadiverse Countries | 0 | - | 4.97 | 134,230 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,113 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,002 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,898 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,109 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,294 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,386 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,778 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 75,865 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,501 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,604 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,574 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,780 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,045 |
| World Map Quiz | 0 | - | 4.81 | 63,745 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,501 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,549 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.84 | 63,304 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,330 |
| Countries by Founding Story | 0 | - | 4.95 | 76,690 |
| Countries by Road Signs | 0 | - | 4.98 | 53,256 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,731 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,484 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,210 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,238 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,084 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,290 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,476 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,059 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,508 |
| Widest Countries East to West | 0 | - | 4.92 | 129,006 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,281 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,452 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,640 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,844 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,796 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,205 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 76,395 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,634 |
| Countries with Double Letters | 0 | - | 4.96 | 93,653 |
| Countries that End in N | 0 | - | 4.94 | 157,112 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,989 |
| Countries with Six Letters | 0 | - | 4.93 | 210,649 |
| Countries with W | 0 | - | 4.97 | 158,405 |
| Countries with Z | 0 | - | 4.98 | 288,203 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,741 |
| Countries That End in U | 0 | - | 4.95 | 119,600 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,849 |
| Countries that End in O | 0 | - | 4.92 | 158,640 |
| Countries that End in R | 0 | - | 4.87 | 118,364 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,924 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,381 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,520 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,630 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,179 |
| Countries That End in Y | 0 | - | 4.90 | 185,278 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,594 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,881 |
| Countries that End in I | 0 | - | 4.94 | 134,527 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,437 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,286 |
| Countries That End in NIA | 0 | - | 4.92 | 109,109 |
| Countries That End in BIA | 0 | - | 4.92 | 147,842 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,235 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,622 |
| Countries That End in RIA | 0 | - | 4.93 | 126,189 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,163 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,665 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,655 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,012 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,558 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,016 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,270 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,777 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,667 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,885 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,327 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,975 |
| Countries that End in L | 0 | - | 4.94 | 156,144 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,028 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,018 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,615 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,439 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,511 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,917 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,601 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 141,558 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,624 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,994 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,904 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,805 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,236 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,458 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,405 |
| Name a Valid Island Country | 0 | - | 4.96 | 114,227 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,056 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,539 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,272 |
| One Border Countries | 0 | - | 4.98 | 465,497 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,752 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,806,956 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,595,593 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,129 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,467 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,128 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,609 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,913 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,486 |
| Countries by National Anthem | 0 | - | 4.93 | 71,069 |
| NATO Countries | 0 | - | 4.98 | 277,083 |
| EU Countries Quiz | 0 | - | 4.99 | 270,806 |
| Recently Independent Countries | 0 | - | 4.98 | 158,173 |
| French-Speaking Countries | 0 | - | 4.85 | 269,220 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,440 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,477 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,641 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 269,318 |
| German-Speaking Countries | 0 | - | 4.89 | 123,591 |
