| Spanish-Speaking Countries | 0 | - | 4.95 | 377,138 |
| Countries by Official Language | 0 | - | 4.95 | 196,302 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 298,051 |
| Countries in their Native Language | 0 | - | 4.99 | 200,016 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,199 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,776 |
| German-Speaking Countries | 0 | - | 4.92 | 146,112 |
| Spanish to English Country Names | 0 | - | 4.86 | 34,070 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,996,999 |
| Landlocked Countries | 0 | - | 4.99 | 427,596 |
| English Speaking Countries | 0 | - | 4.64 | 358,477 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,814,841 |
| Sahara Desert Countries | 0 | - | 4.98 | 167,080 |
| Himalayan Countries | 0 | - | 4.93 | 140,967 |
| Andean Countries | 0 | - | 4.94 | 85,873 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,985 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,596 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,531 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,741 |
| Danube Countries | 0 | - | 4.97 | 72,597 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,852 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 87,006 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,508 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,982 |
| European Landlocked Countries | 0 | - | 4.99 | 147,809 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,587 |
| Countries with the Most Species | 0 | - | 4.99 | 103,665 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,692 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,827 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,967 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,948 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,700 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,159 |
| Countries in the Alps | 0 | - | 4.87 | 119,028 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,092 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,229 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,086 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,212 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,178 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,418 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,632 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,029 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,529 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,345 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,972 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,848 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,699 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,952 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,052 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,222 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,763 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,701 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,880 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,489 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,606 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,635 |
| Largest Countries By Category | 0 | - | 4.97 | 159,153 |
| Countries by Countries | 0 | - | 4.97 | 63,840 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,499 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,456 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,716 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,586 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,592 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,271 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 125,011 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,923 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,568 |
| Island Countries | 0 | - | 4.99 | 713,141 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,581 |
| Northernmost Countries | 0 | - | 4.99 | 364,771 |
| Countries of South America | 0 | - | 5.00 | 934,769 |
| Countries of Oceania | 0 | - | 5.00 | 1,066,053 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,894,237 |
| "Land" Countries | 0 | - | 4.98 | 339,138 |
| Top World Languages | 0 | - | 4.92 | 831,862 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 128,499 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,398,132 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,613 |
| Countries with Megacities | 0 | - | 4.99 | 268,091 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,261 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,394 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,596 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,495 |
| Independence from Whom | 0 | - | 4.99 | 213,498 |
| Subdivisions by Country | 0 | - | 4.87 | 50,680 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,735 |
| Megadiverse Countries | 0 | - | 4.96 | 149,647 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,592 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,837 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,270 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,523 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,946 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,357 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,647 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,197 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,296 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,860 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,512 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,525 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,241 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,662 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 72,001 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,849 |
| World Map Quiz | 0 | - | 4.81 | 65,969 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 160,094 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,851 |
| Countries by Founding Story | 0 | - | 4.95 | 77,934 |
| Countries by Road Signs | 0 | - | 4.98 | 54,481 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,598 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,277 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,749 |
| Countries With the Most Languages | 0 | - | 4.90 | 204,026 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,602 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,712 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,894 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,782 |
| Tallest Countries North to South | 0 | - | 4.85 | 131,000 |
| Widest Countries East to West | 0 | - | 4.92 | 130,895 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,637 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,456 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,583 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,184 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,330 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,642 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,547 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,933 |
| Countries with Double Letters | 0 | - | 4.96 | 97,743 |
| Countries that End in N | 0 | - | 4.95 | 172,743 |
| Countries with Five Letters | 0 | - | 4.96 | 284,794 |
| Countries with Six Letters | 0 | - | 4.94 | 215,076 |
| Countries with W | 0 | - | 4.96 | 161,399 |
| Countries with Z | 0 | - | 4.98 | 293,143 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,768 |
| Countries That End in U | 0 | - | 4.95 | 121,446 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,521 |
| Countries that End in O | 0 | - | 4.92 | 160,417 |
| Countries that End in R | 0 | - | 4.87 | 119,308 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,083 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,236 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 187,390 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,278 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,947 |
| Countries That End in Y | 0 | - | 4.91 | 186,198 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,481 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,467 |
| Countries that End in I | 0 | - | 4.94 | 135,456 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,423 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,176 |
| Countries That End in NIA | 0 | - | 4.92 | 110,188 |
| Countries That End in BIA | 0 | - | 4.93 | 149,781 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,988 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,937 |
| Countries That End in RIA | 0 | - | 4.93 | 127,189 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,580 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 229,046 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,444 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,909 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,471 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,945 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,506 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,618 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 126,100 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,760 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,955 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,670 |
| Countries that End in L | 0 | - | 4.94 | 157,285 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,753 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,389 |
| City to Country Quiz #1 | 0 | - | 4.96 | 157,912 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,180 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,566 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,730 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,363 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,559 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,458 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,247 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,353 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,308 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,980 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,890 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,386 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,690 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,627 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,136 |
| One Border Countries | 0 | - | 4.98 | 472,786 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,854,962 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,661,824 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 58,338 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,497 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,591 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,875 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 113,141 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,404 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,755 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,998 |
| Countries by National Anthem | 0 | - | 4.92 | 71,448 |
| NATO Countries | 0 | - | 4.98 | 284,191 |
| EU Countries Quiz | 0 | - | 4.99 | 279,104 |
| Recently Independent Countries | 0 | - | 4.98 | 160,561 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 84,271 |
