| Landlocked Countries Quiz | 0 | - | 4.99 | 334,215 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,747,477 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 198,133 |
| Members of the Arab League | 0 | - | 4.86 | 66,247 |
| Sahara Desert Countries | 0 | - | 4.97 | 130,449 |
| Himalayan Countries | 0 | - | 4.94 | 108,392 |
| Andean Countries | 0 | - | 4.91 | 60,171 |
| Countries with the Oldest Median Age | 0 | - | 4.82 | 61,361 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,836 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 104,447 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,841 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 54,256 |
| Danube Countries | 0 | - | 4.96 | 57,226 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,234 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,294 |
| Countries with the Best Passports | 0 | - | 4.86 | 72,696 |
| Countries with the Worst Passports | 0 | - | 4.89 | 50,397 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 111,012 |
| European Landlocked Countries | 0 | - | 4.99 | 137,039 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,806 |
| Countries with the Most Species | 0 | - | 4.99 | 89,855 |
| Countries 197 to 205 | 0 | - | 4.87 | 57,336 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 45,020 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,314 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 49,059 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,882 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 59,118 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,921 |
| Countries in the Alps | 0 | - | 4.84 | 103,850 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,430 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 89,502 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,278 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,376 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,897 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,338 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,545 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,774 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,692 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,409 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 70,170 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 49,030 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 37,029 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,581 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,667 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,239 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 100,545 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,959 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 54,035 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 202,481 |
| World Countries - Blind Typing | 0 | - | 5.00 | 75,372 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,829 |
| Largest Countries By Category | 0 | - | 4.97 | 146,427 |
| Countries by Countries | 0 | - | 4.95 | 55,596 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,169,686 |
| Country Flags with the Most White | 0 | - | 4.90 | 126,540 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,204 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,614 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,227,416 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 344,970 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 362,532 |
| Island Countries Quiz | 0 | - | 4.99 | 668,518 |
| Biggest Countries by Area | 0 | - | 5.00 | 947,213 |
| Northernmost Countries | 0 | - | 4.99 | 330,860 |
| Countries of South America | 0 | - | 5.00 | 809,658 |
| Countries of Oceania | 0 | - | 5.00 | 913,296 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,610,599 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 128,980 |
| Countries with Megacities | 0 | - | 4.99 | 201,766 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,301 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,927 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 98,199 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,826 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 252,916 |
| Countries by Official Language | 0 | - | 4.96 | 175,196 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 253,151 |
| Countries in their Native Language | 0 | - | 4.98 | 180,517 |
| Independence from Whom | 0 | - | 4.99 | 189,313 |
| Subdivisions by Country | 0 | - | 4.84 | 46,886 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 115,596 |
| Megadiverse Countries | 0 | - | 4.96 | 126,780 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 93,860 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,572 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,806 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 133,307 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,881 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 79,606 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 146,024 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,704 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,846 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 45,048 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 102,247 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,927 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,454 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,391 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 66,010 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 86,370 |
| World Map Quiz | 0 | - | 4.90 | 51,367 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 118,369 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 82,697 |
| Southernmost Countries of the World | 0 | - | 4.99 | 209,684 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 92,782 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 109,925 |
| Countries With the Most Languages | 0 | - | 4.90 | 177,635 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,670 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 73,032 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 88,241 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 55,063 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,541 |
| Widest Countries East to West | 0 | - | 4.93 | 120,517 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,114 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 160,504 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,812 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,400 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,616 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,622 |
| Countries with the Most Desert | 0 | - | 4.92 | 106,451 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,793 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,403 |
| Countries with Double Letters | 0 | - | 4.96 | 71,755 |
| Countries that End in N | 0 | - | 4.94 | 135,923 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 233,777 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 190,475 |
| Countries with W | 0 | - | 4.96 | 125,606 |
| Countries with Z | 0 | - | 4.98 | 264,566 |
| Countries with Letters Missing | 0 | - | 4.97 | 169,649 |
| Countries That End in U | 0 | - | 4.95 | 109,314 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 92,318 |
| Countries that End in O | 0 | - | 4.92 | 148,621 |
| Countries that End in R | 0 | - | 4.85 | 97,293 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 148,072 |
| Countries Ending in "IA" | 0 | - | 4.99 | 174,091 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 157,665 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,667 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 130,605 |
| Countries That End in Y | 0 | - | 4.90 | 162,390 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 162,941 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 122,344 |
| Countries that End in I | 0 | - | 4.92 | 115,193 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 151,595 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 89,365 |
| Countries That End in NIA | 0 | - | 4.92 | 101,794 |
| Countries That End in BIA | 0 | - | 4.91 | 127,269 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 155,107 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 110,945 |
| Countries That End in RIA | 0 | - | 4.90 | 101,868 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 101,711 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 204,482 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 121,568 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 112,692 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 79,242 |
| Countries With One Word and Three A's | 0 | - | 4.87 | 31,874 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 93,807 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 98,129 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,666 |
| Countries with the Word "And" | 0 | - | 4.98 | 85,021 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 42,457 |
| Countries that End in L | 0 | - | 4.95 | 135,811 |
| "Land" Countries | 0 | - | 4.98 | 292,251 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 191,232 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 82,867 |
| City to Country Quiz #1 | 0 | - | 4.95 | 135,324 |
| City to Country Quiz #3 | 0 | - | 4.87 | 101,044 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 72,587 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 211,023 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 170,869 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 117,773 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 134,874 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 196,339 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 142,535 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 66,604 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.84 | 103,284 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 83,251 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 57,357 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,328,463 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 353,278 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,115,992 |
| One Border Countries | 0 | - | 4.98 | 415,664 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,467,827 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 67,404 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 248,283 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 110,545 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 104,247 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 72,213 |
| Countries by National Anthem | 0 | - | 4.94 | 68,537 |
| NATO Countries Quiz | 0 | - | 4.98 | 229,204 |
| EU Countries Quiz | 0 | - | 4.99 | 231,317 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 146,450 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 78,521 |
| Countries That Use the Euro | 0 | - | 4.93 | 66,064 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 229,211 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 234,714 |
| German-Speaking Countries | 0 | - | 4.88 | 118,294 |
| Countries with Wild Tigers | 0 | - | 4.95 | 112,392 |
| Countries with Wild Penguins | 0 | - | 4.93 | 91,308 |
| Solve the Secret Country #1 | 0 | - | 4.95 | 134,942 |
| Top Five Countries by Religion | 0 | - | 4.90 | 145,566 |
| Solve the Secret Country #2 | 0 | - | 4.90 | 92,315 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 82,758 |
| Olympic Host Countries | 0 | - | 4.98 | 164,306 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 118,561 |
