| Countries with Double Letters | 0 | - | 4.96 | 66,307 |
| Countries that End in N | 0 | - | 4.94 | 130,711 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 227,189 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 184,991 |
| Countries with W | 0 | - | 4.97 | 121,031 |
| Countries with Z | 0 | - | 4.98 | 241,639 |
| Countries with Letters Missing | 0 | - | 4.97 | 154,209 |
| Countries That End in U | 0 | - | 4.94 | 106,523 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.96 | 87,907 |
| Countries that End in O | 0 | - | 4.92 | 146,169 |
| Countries that End in R | 0 | - | 4.85 | 95,958 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,737 |
| Countries Ending in "IA" | 0 | - | 4.99 | 169,212 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 154,677 |
| Countries by Last Two Letters | 0 | - | 4.90 | 115,425 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 128,361 |
| Countries That End in Y | 0 | - | 4.90 | 160,693 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 159,395 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 119,624 |
| Countries that End in I | 0 | - | 4.92 | 114,076 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 148,197 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 87,708 |
| Countries That End in NIA | 0 | - | 4.93 | 100,184 |
| Countries That End in BIA | 0 | - | 4.91 | 125,171 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 152,211 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 108,905 |
| Countries That End in RIA | 0 | - | 4.89 | 100,247 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 99,599 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 198,250 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 118,430 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 109,223 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 76,136 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 91,373 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 95,747 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 42,273 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 39,586 |
| Countries that End in L | 0 | - | 4.95 | 133,197 |
| "Land" Countries | 0 | - | 4.98 | 287,591 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 187,199 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,049 |
| Countries With One Word and Three A's | 0 | - | 4.83 | 30,094 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,356,924 |
| Countries with Four Letters | 0 | - | 4.99 | 374,112 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 316,243 |
| Countries on the Equator | 0 | - | 4.82 | 131,435 |
| Members of the Arab League | 0 | - | 4.81 | 58,704 |
| Sahara Desert Countries | 0 | - | 4.97 | 124,831 |
| Himalayan Countries | 0 | - | 4.95 | 102,121 |
| Andean Countries | 0 | - | 4.90 | 56,713 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 57,529 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,464 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 101,763 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,433 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,619 |
| Danube Countries | 0 | - | 4.97 | 56,310 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,326 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,541 |
| Countries with the Best Passports | 0 | - | 4.86 | 70,145 |
| Countries with the Worst Passports | 0 | - | 4.86 | 48,654 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,041 |
| European Landlocked Countries | 0 | - | 4.99 | 114,776 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,606 |
| Countries with the Most Species | 0 | - | 4.99 | 89,051 |
| Countries 197 to 205 | 0 | - | 4.87 | 55,676 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,393 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,766 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,649 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,043 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 58,401 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,582 |
| Countries in the Alps | 0 | - | 4.82 | 101,477 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,486 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 85,513 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,043 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,600 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,233 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 86,780 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 88,945 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,680 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,008 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,053 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 68,816 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,294 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,362 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 94,836 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,407 |
| Countries with the Most Grassland | 0 | - | 4.93 | 68,874 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,301 |
| Countries with the Most Climate Zones | 0 | - | 4.97 | 60,879 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 52,860 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 191,875 |
| World Countries - Blind Typing | 0 | - | 5.00 | 70,979 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 41,883 |
| Largest Countries By Category | 0 | - | 4.96 | 143,678 |
| Countries by Countries | 0 | - | 4.96 | 53,941 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,006,024 |
| Country Flags with the Most White | 0 | - | 4.90 | 107,457 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,313 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 77,154 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 115,776 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 338,051 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 350,907 |
| Island Countries Quiz | 0 | - | 4.99 | 637,281 |
| Biggest Countries by Area | 0 | - | 5.00 | 922,944 |
| Northernmost Countries | 0 | - | 4.99 | 324,926 |
| Countries of South America | 0 | - | 5.00 | 781,646 |
| Countries of Oceania | 0 | - | 5.00 | 879,276 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,099,063 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,546,752 |
| Countries with J | 0 | - | 4.46 | 145,968 |
| Add A Letter - Make a Country | 0 | - | 4.79 | 67,540 |
| Countries by Consonants | 0 | - | 4.44 | 72,314 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 123,834 |
| Countries with Megacities | 0 | - | 4.99 | 194,254 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,012 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,642 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,387 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,502 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 244,532 |
| Countries by Official Language | 0 | - | 4.95 | 153,203 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 246,018 |
| Countries in their Native Language | 0 | - | 4.98 | 176,498 |
| Independence from Whom | 0 | - | 4.99 | 182,545 |
| Subdivisions by Country | 0 | - | 4.82 | 46,124 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 111,624 |
| Megadiverse Countries | 0 | - | 4.96 | 124,599 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 89,675 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 105,880 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,073 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 129,605 |
| Most Recently-Settled Countries | 0 | - | 4.91 | 48,530 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 76,392 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,178 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,408 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,916 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 42,671 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 100,717 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,247 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,437 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 67,815 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,641 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 79,590 |
| World Map Quiz | 0 | - | 4.90 | 47,899 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 110,012 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 80,594 |
| Southernmost Countries of the World | 0 | - | 4.99 | 205,064 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 89,948 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 106,870 |
| Countries With the Most Languages | 0 | - | 4.90 | 171,166 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.92 | 86,449 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 70,723 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 85,272 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,171 |
| Tallest Countries North to South | 0 | - | 4.84 | 109,691 |
| Widest Countries East to West | 0 | - | 4.93 | 118,357 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,653 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 157,721 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,037 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 84,654 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 117,502 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,394 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,220 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 31,798 |
| City to Country Quiz #1 | 0 | - | 4.94 | 133,606 |
| City to Country Quiz #3 | 0 | - | 4.86 | 99,384 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 70,991 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 205,886 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 156,763 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 115,543 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 131,422 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 191,751 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 139,810 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 65,365 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 91,375 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 81,804 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 55,290 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,300,017 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,120 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,028,467 |
| One Border Countries | 0 | - | 4.98 | 405,943 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.75 | 92,321 |
| Most Similar Country Names | 0 | - | 4.15 | 43,384 |
| Longest Country Name A-Z | 0 | - | 4.36 | 36,452 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,347,923 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 65,189 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 243,086 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,070 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,396 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 64,275 |
| Countries by National Anthem | 0 | - | 4.94 | 61,580 |
| NATO Countries Quiz | 0 | - | 4.98 | 222,765 |
| EU Countries Quiz | 0 | - | 4.99 | 225,600 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 143,167 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 77,073 |
| Countries That Use the Euro | 0 | - | 4.91 | 61,257 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 223,655 |
| Countries with Nuclear Weapons | 0 | - | 4.88 | 215,422 |
| German-Speaking Countries | 0 | - | 4.87 | 117,068 |
| Countries with Wild Tigers | 0 | - | 4.95 | 110,189 |
| Countries with Wild Penguins | 0 | - | 4.93 | 89,546 |
