| Landlocked Countries Quiz | 0 | - | 4.99 | 330,888 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,465,641 |
| Members of the Arab League | 0 | - | 4.85 | 64,963 |
| Sahara Desert Countries | 0 | - | 4.97 | 129,203 |
| Himalayan Countries | 0 | - | 4.94 | 107,171 |
| Andean Countries | 0 | - | 4.91 | 59,619 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 60,693 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,403 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 103,786 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,616 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,928 |
| Danube Countries | 0 | - | 4.96 | 57,044 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,058 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,146 |
| Countries with the Best Passports | 0 | - | 4.87 | 72,202 |
| Countries with the Worst Passports | 0 | - | 4.88 | 50,057 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 110,346 |
| European Landlocked Countries | 0 | - | 4.99 | 136,696 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,461 |
| Countries with the Most Species | 0 | - | 4.99 | 89,747 |
| Countries 197 to 205 | 0 | - | 4.87 | 56,957 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,907 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,208 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,783 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,717 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,979 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,632 |
| Countries in the Alps | 0 | - | 4.84 | 103,438 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,055 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 88,620 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,036 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,102 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,595 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,074 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,227 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,556 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,570 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,156 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,915 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,866 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,904 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,277 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,424 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,008 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 99,673 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,737 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 53,819 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 200,108 |
| World Countries - Blind Typing | 0 | - | 5.00 | 74,423 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,647 |
| Largest Countries By Category | 0 | - | 4.97 | 145,923 |
| Countries by Countries | 0 | - | 4.96 | 55,260 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,135,767 |
| Country Flags with the Most White | 0 | - | 4.90 | 125,587 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,039 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,100 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,201,872 |
| Bordering Countries by HDI Difference | 0 | - | 4.91 | 48,075 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 343,440 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 359,983 |
| Island Countries Quiz | 0 | - | 4.99 | 665,747 |
| Biggest Countries by Area | 0 | - | 5.00 | 942,038 |
| Northernmost Countries | 0 | - | 4.99 | 329,783 |
| Countries of South America | 0 | - | 5.00 | 804,028 |
| Countries of Oceania | 0 | - | 5.00 | 906,247 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,597,233 |
| Highest HDI Countries with Exceptions | 0 | - | 4.58 | 60,169 |
| Lowest HDI Countries with Exceptions | 0 | - | 4.65 | 41,221 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 127,959 |
| Countries with Megacities | 0 | - | 4.99 | 200,288 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 173,817 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,197 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 97,321 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,186 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 251,170 |
| Countries by Official Language | 0 | - | 4.96 | 174,433 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 251,686 |
| Countries in their Native Language | 0 | - | 4.98 | 179,585 |
| Independence from Whom | 0 | - | 4.99 | 187,917 |
| Subdivisions by Country | 0 | - | 4.82 | 46,744 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 114,834 |
| Megadiverse Countries | 0 | - | 4.96 | 126,259 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 92,736 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,246 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,676 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 132,515 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,601 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 79,009 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,768 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,461 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,713 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 44,615 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 102,021 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,669 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,106 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,739 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 84,833 |
| World Map Quiz | 0 | - | 4.91 | 50,688 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 116,676 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 82,288 |
| Southernmost Countries of the World | 0 | - | 4.99 | 208,843 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 92,089 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 109,324 |
| Countries With the Most Languages | 0 | - | 4.91 | 176,179 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,283 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 72,588 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 87,674 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 54,709 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,178 |
| Widest Countries East to West | 0 | - | 4.93 | 120,146 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,028 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 159,984 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,488 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,066 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,260 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,182 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,858 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,678 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,287 |
| Countries with Double Letters | 0 | - | 4.96 | 70,566 |
| Countries that End in N | 0 | - | 4.94 | 134,798 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 232,141 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 189,387 |
| Countries with W | 0 | - | 4.96 | 124,707 |
| Countries with Z | 0 | - | 4.98 | 259,968 |
| Countries with Letters Missing | 0 | - | 4.97 | 168,751 |
| Countries That End in U | 0 | - | 4.95 | 108,684 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 91,361 |
| Countries that End in O | 0 | - | 4.92 | 148,143 |
| Countries that End in R | 0 | - | 4.84 | 97,023 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,788 |
| Countries Ending in "IA" | 0 | - | 4.99 | 173,038 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 157,116 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,268 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 130,210 |
| Countries That End in Y | 0 | - | 4.90 | 162,106 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 162,280 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 121,898 |
| Countries that End in I | 0 | - | 4.92 | 114,956 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 150,806 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 89,064 |
| Countries That End in NIA | 0 | - | 4.93 | 101,481 |
| Countries That End in BIA | 0 | - | 4.91 | 126,896 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 154,545 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 110,533 |
| Countries That End in RIA | 0 | - | 4.90 | 101,584 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 101,256 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 203,323 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 120,944 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 112,013 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 78,608 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 93,399 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 97,642 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,379 |
| Countries with the Word "And" | 0 | - | 4.98 | 84,485 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 41,834 |
| Countries that End in L | 0 | - | 4.95 | 135,390 |
| "Land" Countries | 0 | - | 4.98 | 291,520 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 190,651 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,327 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,949 |
| City to Country Quiz #3 | 0 | - | 4.87 | 100,742 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 72,250 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 210,086 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 169,247 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 117,326 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 134,216 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 195,491 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 141,795 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 66,353 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.84 | 102,940 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,940 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 57,059 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,322,393 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 352,098 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,098,299 |
| One Border Countries | 0 | - | 4.98 | 413,382 |
| Countries With One Word and Three A's | 0 | - | 4.87 | 31,505 |
| Five Highest HDI Countries by Continent | 0 | - | 4.50 | 53,611 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,442,876 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,970 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 247,140 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 110,006 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 103,970 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 71,623 |
| Countries by National Anthem | 0 | - | 4.95 | 62,076 |
| NATO Countries Quiz | 0 | - | 4.98 | 228,059 |
| EU Countries Quiz | 0 | - | 4.99 | 230,182 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 145,644 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 78,203 |
| Countries That Use the Euro | 0 | - | 4.93 | 65,028 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 228,285 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 232,938 |
| German-Speaking Countries | 0 | - | 4.88 | 118,014 |
| Countries with Wild Tigers | 0 | - | 4.95 | 112,036 |
| Countries with Wild Penguins | 0 | - | 4.93 | 91,016 |
| Solve the Secret Country #1 | 0 | - | 4.95 | 133,158 |
| Top Five Countries by Religion | 0 | - | 4.90 | 144,615 |
| Solve the Secret Country #2 | 0 | - | 4.90 | 90,791 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 82,400 |
