| Spanish-Speaking Countries | 0 | - | 4.95 | 376,659 |
| Countries by Official Language | 0 | - | 4.95 | 195,971 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,605 |
| Countries in their Native Language | 0 | - | 4.99 | 199,720 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,931 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,697 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,870,143 |
| French-Speaking Countries | 0 | - | 4.85 | 271,654 |
| German-Speaking Countries | 0 | - | 4.92 | 146,018 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,865 |
| Landlocked Countries | 0 | - | 4.99 | 425,696 |
| English Speaking Countries | 0 | - | 4.64 | 358,228 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,803,690 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,924 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 742,290 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,182 |
| Himalayan Countries | 0 | - | 4.93 | 140,186 |
| Andean Countries | 0 | - | 4.94 | 85,406 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,556 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,948 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,129 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,406 |
| Danube Countries | 0 | - | 4.97 | 72,369 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,574 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,822 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,090 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,585 |
| European Landlocked Countries | 0 | - | 4.99 | 147,596 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,277 |
| Countries with the Most Species | 0 | - | 4.99 | 103,553 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,386 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,768 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,879 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,833 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,570 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,002 |
| Countries in the Alps | 0 | - | 4.87 | 118,752 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,593 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,835 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,953 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,014 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,937 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,239 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,387 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,851 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,410 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,162 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,860 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,737 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,546 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,774 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,876 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,805 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,598 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 67,809 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,652 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,650 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,110 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,495 |
| Largest Countries By Category | 0 | - | 4.97 | 158,844 |
| Countries by Countries | 0 | - | 4.96 | 63,629 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,242 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,397 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,664 |
| All Countries by Population With a Map | 0 | - | 4.98 | 110,941 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,421 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,098 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,319 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,637 |
| Island Countries | 0 | - | 4.99 | 712,529 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,588 |
| Northernmost Countries | 0 | - | 4.99 | 363,935 |
| Countries of South America | 0 | - | 5.00 | 932,532 |
| Countries of Oceania | 0 | - | 5.00 | 1,063,153 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,888,890 |
| "Land" Countries | 0 | - | 4.98 | 338,351 |
| Top World Languages | 0 | - | 4.92 | 829,643 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,393,395 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 128,113 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,121 |
| Countries with Megacities | 0 | - | 4.99 | 267,050 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,818 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,121 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,134 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,227 |
| Independence from Whom | 0 | - | 4.99 | 213,036 |
| Subdivisions by Country | 0 | - | 4.87 | 50,610 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,419 |
| Megadiverse Countries | 0 | - | 4.96 | 135,272 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,532 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,649 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,226 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,915 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,844 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,106 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,566 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,032 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,252 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,508 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,370 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,441 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,141 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,573 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,840 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,332 |
| World Map Quiz | 0 | - | 4.81 | 65,710 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,187 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,709 |
| Countries by Founding Story | 0 | - | 4.95 | 77,788 |
| Countries by Road Signs | 0 | - | 4.98 | 54,341 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,232 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,070 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,553 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,548 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,422 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,528 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,722 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,687 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,691 |
| Widest Countries East to West | 0 | - | 4.92 | 130,449 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,597 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,249 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,515 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,058 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,962 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,475 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,501 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,888 |
| Countries with Double Letters | 0 | - | 4.96 | 97,054 |
| Countries that End in N | 0 | - | 4.95 | 171,912 |
| Countries with Five Letters | 0 | - | 4.96 | 283,736 |
| Countries with Six Letters | 0 | - | 4.94 | 214,454 |
| Countries with W | 0 | - | 4.96 | 160,917 |
| Countries with Z | 0 | - | 4.98 | 292,423 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,278 |
| Countries That End in U | 0 | - | 4.95 | 121,182 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,087 |
| Countries that End in O | 0 | - | 4.92 | 160,208 |
| Countries that End in R | 0 | - | 4.87 | 119,177 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,931 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,819 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,142 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,822 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,747 |
| Countries That End in Y | 0 | - | 4.91 | 186,086 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,445 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,270 |
| Countries that End in I | 0 | - | 4.94 | 135,311 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,609 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,054 |
| Countries That End in NIA | 0 | - | 4.92 | 110,048 |
| Countries That End in BIA | 0 | - | 4.93 | 149,570 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,529 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,768 |
| Countries That End in RIA | 0 | - | 4.93 | 127,050 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,384 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,578 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,178 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,618 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,164 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,801 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,326 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,535 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,901 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,649 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,720 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,412 |
| Countries that End in L | 0 | - | 4.94 | 157,124 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 217,974 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,342 |
| City to Country Quiz #1 | 0 | - | 4.97 | 157,502 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,988 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,445 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,413 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,131 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,430 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,252 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,963 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,205 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,237 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,825 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,237 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,332 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,453,985 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,449 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,848,387 |
| One Border Countries | 0 | - | 4.98 | 471,897 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,652,351 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 58,227 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,317 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,011 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,638 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,891 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,210 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,607 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,680 |
| Majority Muslim Countries | 0 | - | 4.98 | 377,617 |
| Countries by National Anthem | 0 | - | 4.92 | 71,405 |
| NATO Countries | 0 | - | 4.98 | 283,377 |
| EU Countries Quiz | 0 | - | 4.99 | 277,845 |
