| Countries with Double Letters | 0 | - | 4.96 | 81,924 |
| Countries that End in N | 0 | - | 4.93 | 145,791 |
| Countries with Five Letters Quiz | 0 | - | 4.97 | 245,735 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 200,287 |
| Countries with W | 0 | - | 4.97 | 139,698 |
| Countries with Z | 0 | - | 4.98 | 275,663 |
| Countries with Letters Missing | 0 | - | 4.97 | 176,324 |
| Countries That End in U | 0 | - | 4.95 | 114,108 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 100,197 |
| Countries that End in O | 0 | - | 4.91 | 154,253 |
| Countries that End in R | 0 | - | 4.84 | 99,868 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 151,874 |
| Countries Ending in "IA" | 0 | - | 4.99 | 197,998 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 163,241 |
| Countries by Last Two Letters | 0 | - | 4.87 | 121,803 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 135,556 |
| Countries That End in Y | 0 | - | 4.91 | 182,081 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 189,188 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 127,422 |
| Countries that End in I | 0 | - | 4.92 | 117,409 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 158,309 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 92,187 |
| Countries That End in BIA | 0 | - | 4.91 | 142,712 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 161,218 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 114,709 |
| Countries That End in RIA | 0 | - | 4.90 | 105,436 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 105,857 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 215,187 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 127,178 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 119,009 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 84,858 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 71,146 |
| Countries With One Word and Three A's | 0 | - | 4.94 | 48,563 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 97,666 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 119,942 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 46,232 |
| Countries with the Word "And" | 0 | - | 4.98 | 89,793 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 47,696 |
| Countries that End in L | 0 | - | 4.94 | 151,750 |
| "Land" Countries | 0 | - | 4.98 | 299,586 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 197,485 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 83,918 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 381,547 |
| Countries of the World Quiz | 0 | - | 5.00 | 44,241,500 |
| Countries with Four Letters | 0 | - | 4.99 | 405,106 |
| Sahara Desert Countries | 0 | - | 4.97 | 145,072 |
| Himalayan Countries | 0 | - | 4.95 | 121,744 |
| Andean Countries | 0 | - | 4.92 | 68,407 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 56,473 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 112,681 |
| Coffee Producing Countries | 0 | - | 4.83 | 59,673 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 59,103 |
| Danube Countries | 0 | - | 4.97 | 60,724 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 96,693 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 81,768 |
| Countries with the Best Passports | 0 | - | 4.81 | 80,234 |
| Countries with the Worst Passports | 0 | - | 4.92 | 64,364 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 137,746 |
| European Landlocked Countries | 0 | - | 4.99 | 140,890 |
| Partially Recognized Countries | 0 | - | 4.98 | 97,873 |
| Countries with the Most Species | 0 | - | 4.99 | 92,267 |
| Countries 197 to 205 | 0 | - | 4.87 | 63,302 |
| Tropic of Cancer Countries | 0 | - | 4.95 | 46,646 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 45,740 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 52,474 |
| Countries that Use the Peso | 0 | - | 4.88 | 56,217 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 69,872 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 53,551 |
| Countries in the Alps | 0 | - | 4.86 | 110,270 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 90,591 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 97,540 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 75,303 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 83,604 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 110,478 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 91,851 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 94,867 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 49,753 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 47,902 |
| Countries with the Most Container Port Traffic | 0 | - | 4.91 | 58,684 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 72,647 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 51,191 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.89 | 39,041 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 100,065 |
| Arctic Ocean Countries | 0 | - | 4.94 | 75,749 |
| Countries with the Most Grassland | 0 | - | 4.93 | 73,409 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 108,724 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 64,721 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 56,635 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 221,490 |
| World Countries - Blind Typing | 0 | - | 5.00 | 94,648 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 45,023 |
| Largest Countries By Category | 0 | - | 4.97 | 151,168 |
| Countries by Countries | 0 | - | 4.96 | 58,343 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,400,229 |
| Country Flags with the Most White | 0 | - | 4.87 | 131,931 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,613 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 46,298 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 83,807 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,466,793 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 121,486 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 199,877 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 359,803 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 381,847 |
| Island Countries Quiz | 0 | - | 4.99 | 690,160 |
| Biggest Countries by Area | 0 | - | 5.00 | 988,591 |
| Northernmost Countries | 0 | - | 4.99 | 342,452 |
| Countries of South America | 0 | - | 5.00 | 861,195 |
| Countries of Oceania | 0 | - | 5.00 | 973,722 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,727,464 |
| Countries with J | 0 | - | 4.55 | 178,818 |
| Countries by Consonants | 0 | - | 4.43 | 76,089 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,254,139 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 158,507 |
| Countries with Megacities | 0 | - | 4.99 | 217,616 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 186,487 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 106,125 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 126,480 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 73,053 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 269,525 |
| Countries by Official Language | 0 | - | 4.95 | 183,898 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 281,767 |
| Countries in their Native Language | 0 | - | 4.98 | 188,686 |
| Independence from Whom | 0 | - | 4.99 | 199,669 |
| Subdivisions by Country | 0 | - | 4.86 | 48,495 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 123,610 |
| Megadiverse Countries | 0 | - | 4.96 | 130,425 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 121,954 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 121,321 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 49,298 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 155,344 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 59,431 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 86,693 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 148,947 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 80,370 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,393 |
| Countries by Sports League Revenue | 0 | - | 4.93 | 67,159 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 104,821 |
| Countries Furthest from the United States | 0 | - | 4.95 | 85,908 |
| Countries with the Highest HDI | 0 | - | 4.95 | 134,162 |
| Straight Shot to the Arctic Circle | 0 | - | 4.89 | 72,113 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 68,575 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 97,955 |
| World Map Quiz | 0 | - | 4.87 | 57,575 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 134,659 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 86,661 |
| Countries by Founding Story | 0 | - | 4.94 | 72,789 |
| Countries by Road Signs | 0 | - | 4.98 | 49,514 |
| Southernmost Countries of the World | 0 | - | 4.99 | 218,461 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 98,649 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 116,524 |
| Countries With the Most Languages | 0 | - | 4.89 | 189,062 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 92,493 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 88,524 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 93,535 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 58,318 |
| Tallest Countries North to South | 0 | - | 4.85 | 115,547 |
| Widest Countries East to West | 0 | - | 4.92 | 124,679 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,188 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 178,506 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,423 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 90,223 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 125,346 |
| Countries with the Most Desert | 0 | - | 4.93 | 123,271 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 68,025 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 33,541 |
| City to Country Quiz #1 | 0 | - | 4.96 | 150,384 |
| City to Country Quiz #3 | 0 | - | 4.87 | 104,710 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 75,575 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 219,138 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 192,347 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 122,054 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 140,810 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 215,878 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.97 | 147,138 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 68,713 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.82 | 105,963 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 84,844 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 59,755 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,380,318 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 364,526 |
| One Border Countries | 0 | - | 4.98 | 444,675 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 97,020 |
| Most Similar Country Names | 0 | - | 4.15 | 45,194 |
| Longest Country Name A-Z | 0 | - | 4.36 | 39,918 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,628,199 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 81,793 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 257,202 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 115,820 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 107,605 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 88,055 |
| Countries by Population Range - Tile Select | 0 | - | 4.85 | 54,891 |
| Countries by National Anthem | 0 | - | 4.92 | 69,867 |
| NATO Countries Quiz | 0 | - | 4.98 | 257,491 |
| EU Countries Quiz | 0 | - | 4.99 | 254,326 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 152,158 |
| French-Speaking Countries | 0 | - | 4.85 | 257,372 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 80,740 |
| Countries That Use the Euro | 0 | - | 4.93 | 75,747 |
| Countries with the Most Military Troops | 0 | - | 4.96 | 266,729 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 248,339 |
