| Countries with Double Letters | 0 | - | 4.96 | 67,132 |
| Countries that End in N | 0 | - | 4.94 | 131,573 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 228,047 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 185,828 |
| Countries with W | 0 | - | 4.97 | 121,834 |
| Countries with Z | 0 | - | 4.98 | 242,903 |
| Countries with Letters Missing | 0 | - | 4.97 | 154,733 |
| Countries That End in U | 0 | - | 4.94 | 107,059 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 88,462 |
| Countries that End in O | 0 | - | 4.92 | 146,483 |
| Countries that End in R | 0 | - | 4.86 | 96,177 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,922 |
| Countries Ending in "IA" | 0 | - | 4.99 | 169,735 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 154,970 |
| Countries by Last Two Letters | 0 | - | 4.90 | 115,663 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 128,599 |
| Countries That End in Y | 0 | - | 4.90 | 160,859 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 159,772 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 119,935 |
| Countries that End in I | 0 | - | 4.92 | 114,206 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 148,562 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 87,869 |
| Countries That End in NIA | 0 | - | 4.93 | 100,382 |
| Countries That End in BIA | 0 | - | 4.91 | 125,450 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 152,480 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,122 |
| Countries That End in RIA | 0 | - | 4.89 | 100,521 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 99,821 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 198,955 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 118,770 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 109,572 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 76,481 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 91,621 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,014 |
| Countries with the Word "And" | 0 | - | 4.98 | 82,675 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 39,892 |
| Countries that End in L | 0 | - | 4.95 | 133,447 |
| "Land" Countries | 0 | - | 4.98 | 288,049 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 187,899 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,083 |
| Countries With One Word and Three A's | 0 | - | 4.84 | 30,273 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 318,122 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,514,054 |
| Countries with Four Letters | 0 | - | 4.99 | 374,550 |
| Countries on the Equator | 0 | - | 4.82 | 132,898 |
| Members of the Arab League | 0 | - | 4.82 | 59,499 |
| Sahara Desert Countries | 0 | - | 4.97 | 125,300 |
| Himalayan Countries | 0 | - | 4.95 | 102,651 |
| Andean Countries | 0 | - | 4.90 | 57,036 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 57,879 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,627 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 101,954 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,588 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,783 |
| Danube Countries | 0 | - | 4.97 | 56,381 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,430 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,623 |
| Countries with the Best Passports | 0 | - | 4.87 | 70,431 |
| Countries with the Worst Passports | 0 | - | 4.87 | 48,847 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,460 |
| European Landlocked Countries | 0 | - | 4.99 | 114,863 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,813 |
| Countries with the Most Species | 0 | - | 4.99 | 89,101 |
| Countries 197 to 205 | 0 | - | 4.88 | 55,887 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,464 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,830 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,807 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,150 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 58,480 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,726 |
| Countries in the Alps | 0 | - | 4.82 | 101,912 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,718 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 85,918 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,166 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,781 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,428 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,112 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,106 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,795 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,088 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,212 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 68,952 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,347 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,438 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,028 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,547 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,030 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,754 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 60,986 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 52,993 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 193,120 |
| World Countries - Blind Typing | 0 | - | 5.00 | 71,556 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 41,995 |
| Largest Countries By Category | 0 | - | 4.96 | 143,986 |
| Countries by Countries | 0 | - | 4.96 | 54,144 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,024,866 |
| Country Flags with the Most White | 0 | - | 4.90 | 107,791 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,407 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 77,447 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 115,993 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 178,250 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 338,824 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 352,156 |
| Island Countries Quiz | 0 | - | 4.99 | 639,179 |
| Biggest Countries by Area | 0 | - | 5.00 | 925,690 |
| Northernmost Countries | 0 | - | 4.99 | 325,507 |
| Countries of South America | 0 | - | 5.00 | 784,604 |
| Countries of Oceania | 0 | - | 5.00 | 883,230 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,113,669 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,554,049 |
| Countries with J | 0 | - | 4.56 | 169,526 |
| Add A Letter - Make a Country | 0 | - | 4.79 | 67,707 |
| Countries by Consonants | 0 | - | 4.44 | 72,462 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 124,334 |
| Countries with Megacities | 0 | - | 4.99 | 195,006 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,665 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,970 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,834 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,818 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 245,378 |
| Countries by Official Language | 0 | - | 4.95 | 153,612 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 247,012 |
| Countries in their Native Language | 0 | - | 4.98 | 177,119 |
| Independence from Whom | 0 | - | 4.99 | 183,896 |
| Subdivisions by Country | 0 | - | 4.82 | 46,208 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 112,338 |
| Megadiverse Countries | 0 | - | 4.96 | 124,822 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 90,093 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 106,064 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,151 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 130,180 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 48,781 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 76,955 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,369 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,553 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,004 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 43,067 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 100,868 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,404 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,517 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 67,983 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,800 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 80,372 |
| World Map Quiz | 0 | - | 4.90 | 48,236 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 110,936 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 80,833 |
| Southernmost Countries of the World | 0 | - | 4.99 | 205,484 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,214 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,167 |
| Countries With the Most Languages | 0 | - | 4.90 | 171,814 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.92 | 86,636 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 70,947 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 85,567 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,368 |
| Tallest Countries North to South | 0 | - | 4.84 | 109,908 |
| Widest Countries East to West | 0 | - | 4.93 | 118,795 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,694 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 157,987 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,138 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 84,857 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 118,182 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,596 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,280 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 31,879 |
| City to Country Quiz #1 | 0 | - | 4.94 | 133,827 |
| City to Country Quiz #3 | 0 | - | 4.86 | 99,805 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,164 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 206,398 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 158,404 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 115,763 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 131,711 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 192,147 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 140,050 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,465 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 91,712 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 81,936 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 55,622 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,303,233 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,737 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,038,466 |
| One Border Countries | 0 | - | 4.98 | 406,901 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.75 | 92,513 |
| Most Similar Country Names | 0 | - | 4.15 | 43,460 |
| Longest Country Name A-Z | 0 | - | 4.36 | 36,587 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,361,428 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 65,433 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 243,619 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,303 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,525 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 64,484 |
| Countries by National Anthem | 0 | - | 4.94 | 61,654 |
| NATO Countries Quiz | 0 | - | 4.98 | 223,900 |
| EU Countries Quiz | 0 | - | 4.99 | 226,336 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 143,755 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 77,212 |
| Countries That Use the Euro | 0 | - | 4.91 | 61,675 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 224,521 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 216,200 |
| German-Speaking Countries | 0 | - | 4.88 | 117,194 |
| Countries with Wild Tigers | 0 | - | 4.95 | 110,370 |
