| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,391 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,583 |
| Countries Closest to an Unknown Country A-Z #1 | 0 | - | 4.91 | 80,409 |
| Countries Closest to an Unknown Country A-Z #2 | 0 | - | 4.96 | 73,600 |
| Countries Closest to an Unknown Country A-Z #3 | 0 | - | 4.91 | 61,889 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,215 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,351 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,491 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,755,672 |
| Landlocked Countries | 0 | - | 4.99 | 424,130 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,794,068 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,472 |
| Himalayan Countries | 0 | - | 4.94 | 139,639 |
| Andean Countries | 0 | - | 4.94 | 85,114 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,302 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,537 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,867 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,159 |
| Danube Countries | 0 | - | 4.97 | 72,237 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,363 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,660 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,780 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,266 |
| European Landlocked Countries | 0 | - | 4.99 | 147,416 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,024 |
| Countries with the Most Species | 0 | - | 4.99 | 103,447 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,158 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,693 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,805 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,718 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,450 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,868 |
| Countries in the Alps | 0 | - | 4.87 | 118,525 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,183 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,513 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,830 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,840 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,770 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,112 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,955 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,698 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,320 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,033 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,775 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,640 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,410 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,652 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,745 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,428 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,491 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,395 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,440 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,047 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,737 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,404 |
| Largest Countries By Category | 0 | - | 4.97 | 158,586 |
| Countries by Countries | 0 | - | 4.96 | 63,466 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,043 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,082 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,356 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,632 |
| All Countries by Population With a Map | 0 | - | 4.99 | 110,393 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,231 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,939 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,593 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,198 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,720 |
| Island Countries | 0 | - | 4.99 | 711,912 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,052,856 |
| Northernmost Countries | 0 | - | 4.99 | 363,248 |
| Countries Whose Center is Closest to the Equator | 0 | - | 4.64 | 61,997 |
| Countries of South America | 0 | - | 5.00 | 930,395 |
| Countries of Oceania | 0 | - | 5.00 | 1,060,793 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,884,364 |
| "Land" Countries | 0 | - | 4.98 | 337,966 |
| Countries With the Most Neighbors | 0 | - | 4.46 | 102,521 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,389,698 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,603 |
| Countries with Megacities | 0 | - | 4.99 | 266,096 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,353 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,806 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,630 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,931 |
| Countries by Official Language | 0 | - | 4.95 | 195,707 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,210 |
| Countries in their Native Language | 0 | - | 4.99 | 199,477 |
| Independence from Whom | 0 | - | 4.99 | 212,669 |
| Subdivisions by Country | 0 | - | 4.87 | 50,547 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,157 |
| Megadiverse Countries | 0 | - | 4.96 | 135,168 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,582 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,467 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,364 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,170 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,402 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,724 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,835 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,480 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,761 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,134 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,283 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,073 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,613 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,923 |
| World Map Quiz | 0 | - | 4.81 | 65,406 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,436 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,549 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.84 | 64,407 |
| Countries by Founding Story | 0 | - | 4.95 | 77,625 |
| Countries by Road Signs | 0 | - | 4.98 | 54,231 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,910 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,817 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,396 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,115 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,242 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,374 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,570 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,605 |
| Tallest Countries North to South | 0 | - | 4.86 | 129,724 |
| Widest Countries East to West | 0 | - | 4.92 | 130,266 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,548 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,060 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,451 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,957 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,832 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,326 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,456 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,859 |
| Countries With the Tallest People | 0 | - | 4.93 | 95,117 |
| Countries with Double Letters | 0 | - | 4.96 | 96,744 |
| Countries that End in N | 0 | - | 4.95 | 171,629 |
| Countries with Five Letters | 0 | - | 4.96 | 283,300 |
| Countries with Six Letters | 0 | - | 4.94 | 214,079 |
| Countries with W | 0 | - | 4.96 | 160,697 |
| Countries with Z | 0 | - | 4.98 | 292,046 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,054 |
| Countries That End in U | 0 | - | 4.95 | 121,053 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,841 |
| Countries that End in O | 0 | - | 4.92 | 159,694 |
| Countries that End in R | 0 | - | 4.87 | 119,094 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,845 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,526 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,971 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,683 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,605 |
| Countries That End in Y | 0 | - | 4.91 | 186,014 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,235 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,106 |
| Countries that End in I | 0 | - | 4.94 | 135,231 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,424 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,954 |
| Countries That End in NIA | 0 | - | 4.92 | 109,943 |
| Countries That End in BIA | 0 | - | 4.93 | 149,427 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,366 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,647 |
| Countries That End in RIA | 0 | - | 4.93 | 126,961 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,247 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,178 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,988 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,425 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,977 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,712 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,215 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,502 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,748 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,562 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,544 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 54,242 |
| Countries that End in L | 0 | - | 4.94 | 157,010 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,856 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,310 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,166 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,105 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,148 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,166 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,955 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,323 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,089 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,776 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,081 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,182 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,768 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,142 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,732 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,858 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,185 |
| One Border Countries | 0 | - | 4.98 | 471,128 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,843,130 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,644,970 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,606 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,153 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,682 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,482 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,759 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,032 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,441 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,892 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,649 |
| Countries by National Anthem | 0 | - | 4.92 | 71,367 |
| NATO Countries | 0 | - | 4.98 | 282,644 |
