| Countries with Double Letters | 0 | - | 4.96 | 72,422 |
| Countries that End in N | 0 | - | 4.94 | 136,676 |
| Countries with Five Letters Quiz | 0 | - | 4.97 | 234,467 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 191,058 |
| Countries with W | 0 | - | 4.96 | 126,153 |
| Countries with Z | 0 | - | 4.98 | 265,176 |
| Countries with Letters Missing | 0 | - | 4.97 | 170,022 |
| Countries That End in U | 0 | - | 4.95 | 109,733 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 92,801 |
| Countries that End in O | 0 | - | 4.92 | 148,896 |
| Countries that End in R | 0 | - | 4.85 | 97,476 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 148,423 |
| Countries Ending in "IA" | 0 | - | 4.99 | 174,489 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 157,895 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,829 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 130,767 |
| Countries That End in Y | 0 | - | 4.92 | 177,155 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 163,163 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 122,623 |
| Countries that End in I | 0 | - | 4.92 | 115,296 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 151,796 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 89,476 |
| Countries That End in NIA | 0 | - | 4.92 | 101,918 |
| Countries That End in BIA | 0 | - | 4.91 | 127,437 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 155,312 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 111,083 |
| Countries That End in RIA | 0 | - | 4.90 | 101,998 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 101,895 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 205,013 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 121,812 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 112,972 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 79,504 |
| Countries With One Word and Three A's | 0 | - | 4.87 | 38,003 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 93,943 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 98,292 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,777 |
| Countries with the Word "And" | 0 | - | 4.98 | 85,206 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 42,643 |
| Countries that End in L | 0 | - | 4.95 | 135,983 |
| "Land" Countries | 0 | - | 4.98 | 292,543 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 191,418 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 82,935 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 335,286 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,835,438 |
| Countries with Four Letters | 0 | - | 4.99 | 378,923 |
| Members of the Arab League | 0 | - | 4.86 | 66,619 |
| Sahara Desert Countries | 0 | - | 4.97 | 130,770 |
| Himalayan Countries | 0 | - | 4.94 | 108,707 |
| Andean Countries | 0 | - | 4.91 | 60,389 |
| Countries with the Oldest Median Age | 0 | - | 4.82 | 61,568 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,981 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 104,613 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,925 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 54,363 |
| Danube Countries | 0 | - | 4.96 | 57,288 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,283 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,343 |
| Countries with the Best Passports | 0 | - | 4.86 | 72,841 |
| Countries with the Worst Passports | 0 | - | 4.89 | 50,513 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 111,174 |
| European Landlocked Countries | 0 | - | 4.99 | 137,289 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,924 |
| Countries with the Most Species | 0 | - | 4.99 | 90,090 |
| Countries 197 to 205 | 0 | - | 4.87 | 57,457 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 45,063 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,353 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 49,146 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,935 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 59,169 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 50,005 |
| Countries in the Alps | 0 | - | 4.84 | 103,989 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,564 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 89,787 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,371 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,477 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,994 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,426 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,649 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,835 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,749 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,489 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 70,251 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 49,079 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 37,065 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,667 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,754 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,326 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 100,820 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 62,025 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 54,122 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 203,261 |
| World Countries - Blind Typing | 0 | - | 5.00 | 75,697 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,896 |
| Largest Countries By Category | 0 | - | 4.97 | 146,571 |
| Countries by Countries | 0 | - | 4.95 | 55,706 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,181,433 |
| Country Flags with the Most White | 0 | - | 4.91 | 126,696 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,264 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 45,179 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,767 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,235,291 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 117,810 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 185,968 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 345,495 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 363,286 |
| Island Countries Quiz | 0 | - | 4.99 | 669,392 |
| Biggest Countries by Area | 0 | - | 5.00 | 948,863 |
| Northernmost Countries | 0 | - | 4.99 | 331,193 |
| Countries of South America | 0 | - | 5.00 | 811,506 |
| Countries of Oceania | 0 | - | 5.00 | 915,418 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,614,811 |
| Countries with J | 0 | - | 4.55 | 174,131 |
| Add A Letter - Make a Country | 0 | - | 4.80 | 68,974 |
| Countries by Consonants | 0 | - | 4.43 | 73,881 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 129,300 |
| Countries with Megacities | 0 | - | 4.99 | 202,189 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,662 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 100,111 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 98,458 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 66,059 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 253,498 |
| Countries by Official Language | 0 | - | 4.96 | 175,434 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 253,856 |
| Countries in their Native Language | 0 | - | 4.98 | 180,807 |
| Independence from Whom | 0 | - | 4.99 | 189,673 |
| Subdivisions by Country | 0 | - | 4.85 | 46,936 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 115,848 |
| Megadiverse Countries | 0 | - | 4.96 | 126,889 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 94,111 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,675 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,864 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 133,478 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,967 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 79,794 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 146,103 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,776 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,883 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 45,209 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 102,328 |
| Countries Furthest from the United States | 0 | - | 4.94 | 73,015 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,563 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,457 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 66,087 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 86,903 |
| World Map Quiz | 0 | - | 4.90 | 51,640 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 118,980 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 82,835 |
| Southernmost Countries of the World | 0 | - | 4.99 | 209,972 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 92,945 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 110,326 |
| Countries With the Most Languages | 0 | - | 4.90 | 178,080 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,777 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 73,190 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 88,421 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 55,192 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,687 |
| Widest Countries East to West | 0 | - | 4.93 | 120,654 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,142 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 160,695 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,899 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,470 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,944 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,757 |
| Countries with the Most Desert | 0 | - | 4.92 | 106,592 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,821 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,443 |
| City to Country Quiz #1 | 0 | - | 4.95 | 135,460 |
| City to Country Quiz #3 | 0 | - | 4.87 | 101,136 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 72,715 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 211,309 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 171,179 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 117,938 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 135,046 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 196,604 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 142,682 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 66,668 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.84 | 103,396 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 83,339 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 57,453 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,330,378 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 353,705 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,121,741 |
| One Border Countries | 0 | - | 4.98 | 416,205 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.75 | 94,300 |
| Most Similar Country Names | 0 | - | 4.14 | 44,156 |
| Longest Country Name A-Z | 0 | - | 4.36 | 37,840 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,475,778 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 67,573 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 248,602 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 110,711 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 104,341 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 72,408 |
| Countries by Population Range - Tile Select | 0 | - | 4.84 | 51,427 |
| Countries by National Anthem | 0 | - | 4.95 | 68,740 |
| NATO Countries Quiz | 0 | - | 4.98 | 242,456 |
| EU Countries Quiz | 0 | - | 4.99 | 231,739 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 146,623 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 78,577 |
| Countries That Use the Euro | 0 | - | 4.93 | 66,481 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 229,659 |
