| Spanish-Speaking Countries | 0 | - | 4.95 | 372,392 |
| Countries by Official Language | 0 | - | 4.95 | 192,924 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,346 |
| Countries in their Native Language | 0 | - | 4.99 | 196,779 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,945 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,691 |
| French-Speaking Countries | 0 | - | 4.85 | 269,016 |
| German-Speaking Countries | 0 | - | 4.89 | 123,550 |
| Spanish to English Country Names | 0 | - | 4.85 | 32,161 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,977,693 |
| Landlocked Countries | 0 | - | 4.99 | 414,339 |
| English Speaking Countries | 0 | - | 4.64 | 356,167 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,722,731 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,879 |
| Himalayan Countries | 0 | - | 4.95 | 135,607 |
| Andean Countries | 0 | - | 4.94 | 82,962 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,325 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,368 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,029 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,699 |
| Danube Countries | 0 | - | 4.97 | 71,151 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,852 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,609 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,630 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,544 |
| European Landlocked Countries | 0 | - | 4.99 | 145,845 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,309 |
| Countries with the Most Species | 0 | - | 4.99 | 95,286 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,463 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,223 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,393 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,996 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,636 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,007 |
| Countries in the Alps | 0 | - | 4.86 | 116,940 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,649 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,394 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,073 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,482 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,258 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,066 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,666 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,820 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,541 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,125 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,220 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,086 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,508 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,807 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,802 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,216 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,715 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,293 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,871 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,665 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,910 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,656 |
| Largest Countries By Category | 0 | - | 4.97 | 156,875 |
| Countries by Countries | 0 | - | 4.96 | 62,328 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,517 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,991 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,351 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,948 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,187 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,838 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 124,303 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,855 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,197 |
| Island Countries | 0 | - | 4.99 | 707,891 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,450 |
| Northernmost Countries | 0 | - | 4.99 | 358,108 |
| Countries of South America | 0 | - | 5.00 | 916,020 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,131 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,850,818 |
| "Land" Countries | 0 | - | 4.98 | 333,839 |
| Top World Languages | 0 | - | 4.92 | 814,036 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,317 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,364,334 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,620 |
| Countries with Megacities | 0 | - | 4.99 | 247,544 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,454 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,199 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,872 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,124 |
| Independence from Whom | 0 | - | 4.99 | 209,878 |
| Subdivisions by Country | 0 | - | 4.86 | 50,103 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,888 |
| Megadiverse Countries | 0 | - | 4.97 | 133,962 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,951 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,464 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,876 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,753 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,049 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,175 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,214 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,247 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,760 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,733 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,454 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,547 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,534 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,728 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,059 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,792 |
| World Map Quiz | 0 | - | 4.81 | 63,639 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,100 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,406 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.84 | 63,218 |
| Countries by Founding Story | 0 | - | 4.95 | 76,610 |
| Countries by Road Signs | 0 | - | 4.98 | 53,181 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,527 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,311 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,050 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,974 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,965 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,150 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,368 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,995 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,405 |
| Widest Countries East to West | 0 | - | 4.92 | 128,810 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,239 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,317 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,602 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,747 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,698 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,121 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 71,745 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,609 |
| Countries With the Tallest People | 0 | - | 4.91 | 94,561 |
| Countries with Double Letters | 0 | - | 4.96 | 93,523 |
| Countries that End in N | 0 | - | 4.94 | 157,008 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,830 |
| Countries with Six Letters | 0 | - | 4.93 | 210,504 |
| Countries with W | 0 | - | 4.97 | 158,320 |
| Countries with Z | 0 | - | 4.98 | 288,040 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,636 |
| Countries That End in U | 0 | - | 4.95 | 119,560 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,714 |
| Countries that End in O | 0 | - | 4.92 | 158,597 |
| Countries that End in R | 0 | - | 4.87 | 118,316 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,883 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,229 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,427 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,562 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,104 |
| Countries That End in Y | 0 | - | 4.90 | 185,240 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,484 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,784 |
| Countries that End in I | 0 | - | 4.94 | 134,481 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,313 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,242 |
| Countries That End in NIA | 0 | - | 4.92 | 109,058 |
| Countries That End in BIA | 0 | - | 4.92 | 147,771 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,149 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,560 |
| Countries That End in RIA | 0 | - | 4.93 | 126,131 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,087 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,416 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,580 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,954 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,443 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,966 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,190 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,716 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,580 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,846 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,224 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,889 |
| Countries that End in L | 0 | - | 4.94 | 155,965 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,626 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,003 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,560 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,354 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,468 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,595 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,411 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 139,056 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,477 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,807 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,794 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,753 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,196 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,436 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,362 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,625 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,044 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,272 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,947 |
| One Border Countries | 0 | - | 4.98 | 464,912 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,804,079 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,591,558 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 57,501 |
| Countries with the Highest Minimum Elevation | 0 | - | 4.86 | 16,058 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,021 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,270 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,021 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,561 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,810 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,401 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,738 |
