| Countries with Double Letters | 0 | - | 4.97 | 86,282 |
| Countries that End in N | 0 | - | 4.94 | 149,756 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 250,261 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 203,845 |
| Countries with W | 0 | - | 4.97 | 152,835 |
| Countries with Z | 0 | - | 4.98 | 279,843 |
| Countries with Letters Missing | 0 | - | 4.97 | 179,352 |
| Countries That End in U | 0 | - | 4.95 | 116,358 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 103,405 |
| Countries that End in O | 0 | - | 4.92 | 155,906 |
| Countries that End in R | 0 | - | 4.84 | 100,937 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 152,822 |
| Countries Ending in "IA" | 0 | - | 4.99 | 200,905 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 165,564 |
| Countries by Last Two Letters | 0 | - | 4.88 | 131,689 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 137,612 |
| Countries That End in Y | 0 | - | 4.91 | 182,991 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 191,853 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 148,002 |
| Countries that End in I | 0 | - | 4.92 | 118,189 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 177,266 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 93,182 |
| Countries That End in NIA | 0 | - | 4.92 | 106,854 |
| Countries That End in BIA | 0 | - | 4.92 | 144,872 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 162,557 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 115,896 |
| Countries That End in RIA | 0 | - | 4.92 | 123,282 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 107,193 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 218,320 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 128,817 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 120,773 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 86,689 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 72,078 |
| Countries With One Word and Three A's | 0 | - | 4.94 | 49,686 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 99,589 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 121,302 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 47,100 |
| Countries with the Word "And" | 0 | - | 4.98 | 91,277 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 49,326 |
| Countries that End in L | 0 | - | 4.94 | 153,120 |
| "Land" Countries | 0 | - | 4.98 | 301,435 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 199,182 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,300 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 391,152 |
| Countries of the World Quiz | 0 | - | 5.00 | 44,966,851 |
| Countries with Four Letters | 0 | - | 4.99 | 407,292 |
| Sahara Desert Countries | 0 | - | 4.98 | 149,810 |
| Himalayan Countries | 0 | - | 4.94 | 125,933 |
| Andean Countries | 0 | - | 4.93 | 70,868 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 58,348 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 115,951 |
| Coffee Producing Countries | 0 | - | 4.83 | 61,705 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 60,787 |
| Danube Countries | 0 | - | 4.97 | 61,842 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 98,237 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 82,854 |
| Countries with the Worst Passports | 0 | - | 4.92 | 75,743 |
| Countries with the Most Immigrants | 0 | - | 4.89 | 141,350 |
| European Landlocked Countries | 0 | - | 4.99 | 142,233 |
| Partially Recognized Countries | 0 | - | 4.98 | 100,091 |
| Countries with the Most Species | 0 | - | 4.99 | 93,255 |
| Countries 197 to 205 | 0 | - | 4.88 | 65,040 |
| Tropic of Cancer Countries | 0 | - | 4.95 | 47,148 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 46,229 |
| Countries that Use the Peso | 0 | - | 4.89 | 57,129 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 70,643 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 54,578 |
| Countries in the Alps | 0 | - | 4.86 | 112,207 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 91,751 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 99,746 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 76,134 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 91,004 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 111,870 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 92,743 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 96,295 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 50,600 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 48,567 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 59,621 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 51,798 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 39,603 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 100,934 |
| Arctic Ocean Countries | 0 | - | 4.94 | 76,584 |
| Countries with the Most Grassland | 0 | - | 4.93 | 74,426 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 111,231 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 65,559 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 57,454 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.94 | 40,798 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 226,886 |
| World Countries - Blind Typing | 0 | - | 5.00 | 97,946 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 45,799 |
| Largest Countries By Category | 0 | - | 4.97 | 152,676 |
| Countries by Countries | 0 | - | 4.96 | 59,345 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,456,307 |
| Country Flags with the Most White | 0 | - | 4.85 | 133,423 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,998 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 46,576 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 84,955 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,533,425 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 122,330 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 204,045 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 363,286 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 387,177 |
| Island Countries Quiz | 0 | - | 4.99 | 695,868 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,007,356 |
| Northernmost Countries | 0 | - | 4.99 | 345,313 |
| Countries of South America | 0 | - | 5.00 | 876,028 |
| Countries of Oceania | 0 | - | 5.00 | 992,087 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,759,346 |
| Countries with J | 0 | - | 4.55 | 180,424 |
| Countries by Consonants | 0 | - | 4.41 | 76,705 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,288,896 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 162,985 |
| Countries with Megacities | 0 | - | 4.99 | 222,638 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 189,756 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 107,786 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 129,059 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 75,211 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 302,958 |
| Countries by Official Language | 0 | - | 4.95 | 186,246 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.90 | 284,925 |
| Countries in their Native Language | 0 | - | 4.98 | 190,582 |
| Independence from Whom | 0 | - | 4.99 | 202,784 |
| Subdivisions by Country | 0 | - | 4.85 | 48,991 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 125,851 |
| Megadiverse Countries | 0 | - | 4.97 | 131,342 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 124,198 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 53,430 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 122,760 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 73,562 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.86 | 49,601 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 157,017 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 60,314 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 88,822 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 150,209 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 81,104 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,655 |
| Countries by Sports League Revenue | 0 | - | 4.93 | 69,822 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 105,357 |
| Countries Furthest from the United States | 0 | - | 4.93 | 86,544 |
| Countries with the Highest HDI | 0 | - | 4.95 | 135,036 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 72,770 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 69,250 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 100,884 |
| World Map Quiz | 0 | - | 4.87 | 59,232 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 139,649 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 87,877 |
| Countries by Founding Story | 0 | - | 4.95 | 73,970 |
| Southernmost Countries of the World | 0 | - | 4.99 | 220,523 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 100,246 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 117,901 |
| Countries With the Most Languages | 0 | - | 4.89 | 192,164 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.94 | 98,010 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 89,697 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 94,897 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 59,058 |
| Tallest Countries North to South | 0 | - | 4.83 | 116,697 |
| Widest Countries East to West | 0 | - | 4.92 | 125,830 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,453 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 181,681 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 96,021 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 91,221 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 126,367 |
| Countries with the Most Desert | 0 | - | 4.93 | 124,205 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 68,312 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 33,858 |
| City to Country Quiz #1 | 0 | - | 4.96 | 151,503 |
| City to Country Quiz #3 | 0 | - | 4.87 | 105,543 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 76,277 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 222,225 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 194,508 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 123,355 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 158,437 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 218,266 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 148,645 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 69,370 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 106,401 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.94 | 85,251 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 60,352 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,394,415 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 367,544 |
| One Border Countries | 0 | - | 4.98 | 448,627 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 97,687 |
| Most Similar Country Names | 0 | - | 4.15 | 45,512 |
| Longest Country Name A-Z | 0 | - | 4.35 | 40,422 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,670,266 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 82,911 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 259,594 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 117,243 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 108,604 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 89,410 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 55,797 |
| Countries by National Anthem | 0 | - | 4.93 | 70,240 |
| NATO Countries Quiz | 0 | - | 4.98 | 260,627 |
| EU Countries Quiz | 0 | - | 4.99 | 257,280 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 153,633 |
| French-Speaking Countries | 0 | - | 4.85 | 262,097 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 81,688 |
| Countries That Use the Euro | 0 | - | 4.96 | 84,248 |
| Countries with the Most Military Troops | 0 | - | 4.96 | 271,473 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 252,026 |
