| Countries of the World Quiz | 0 | - | 5.00 | 47,771,339 |
| Country Name Etymologies #1 | 0 | - | 4.97 | 159,177 |
| Country Name Etymologies #2 | 0 | - | 4.96 | 86,849 |
| Countries with Four Letters | 0 | - | 4.99 | 425,078 |
| Landlocked Countries | 0 | - | 4.99 | 424,337 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,795,392 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,615 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,149 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,379 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 140,184 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 218,361 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,571 |
| Himalayan Countries | 0 | - | 4.94 | 139,723 |
| Andean Countries | 0 | - | 4.94 | 85,161 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,335 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,587 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,909 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,191 |
| Danube Countries | 0 | - | 4.97 | 72,258 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,395 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,686 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,825 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,323 |
| European Landlocked Countries | 0 | - | 4.99 | 147,443 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,054 |
| Countries with the Most Species | 0 | - | 4.99 | 103,463 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,188 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,704 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,816 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,733 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,464 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,891 |
| Countries in the Alps | 0 | - | 4.87 | 118,560 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,253 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,576 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,848 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,859 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,786 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,123 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,063 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,725 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,332 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,052 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,784 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,651 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,434 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,668 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,759 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,479 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,512 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,493 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,471 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,147 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,801 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,418 |
| Largest Countries By Category | 0 | - | 4.97 | 158,617 |
| Countries by Countries | 0 | - | 4.96 | 63,495 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,070 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,361 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,639 |
| All Countries by Population With a Map | 0 | - | 4.98 | 110,507 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,264 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,965 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,986 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,266 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,864 |
| Island Countries | 0 | - | 4.99 | 711,999 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,053,107 |
| Northernmost Countries | 0 | - | 4.99 | 363,345 |
| Countries of South America | 0 | - | 5.00 | 930,701 |
| Countries of Oceania | 0 | - | 5.00 | 1,061,095 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,885,019 |
| "Land" Countries | 0 | - | 4.98 | 338,028 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,390,399 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 238,299 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 78,600 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,751 |
| Countries with Megacities | 0 | - | 4.99 | 266,304 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,473 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,883 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,764 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,992 |
| Countries by Official Language | 0 | - | 4.95 | 195,756 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,277 |
| Countries in their Native Language | 0 | - | 4.99 | 199,536 |
| Independence from Whom | 0 | - | 4.99 | 212,722 |
| Subdivisions by Country | 0 | - | 4.87 | 50,559 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,197 |
| Megadiverse Countries | 0 | - | 4.96 | 135,188 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,747 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,478 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,377 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,179 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,430 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,748 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,883 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,500 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,770 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,221 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,170 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,303 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,367 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,089 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,511 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,623 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,981 |
| World Map Quiz | 0 | - | 4.81 | 65,421 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,546 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,565 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.84 | 64,437 |
| Countries by Founding Story | 0 | - | 4.95 | 77,655 |
| Countries by Road Signs | 0 | - | 4.98 | 54,244 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,964 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,932 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,424 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,197 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,276 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,398 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,590 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,615 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,014 |
| Widest Countries East to West | 0 | - | 4.92 | 130,299 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,557 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,092 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,461 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,974 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,851 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,353 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,465 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,862 |
| Countries With the Tallest People | 0 | - | 4.93 | 95,129 |
| Countries with Double Letters | 0 | - | 4.96 | 96,787 |
| Countries that End in N | 0 | - | 4.95 | 171,672 |
| Countries with Five Letters | 0 | - | 4.96 | 283,370 |
| Countries with Six Letters | 0 | - | 4.94 | 214,132 |
| Countries with W | 0 | - | 4.96 | 160,733 |
| Countries with Z | 0 | - | 4.98 | 292,103 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,084 |
| Countries That End in U | 0 | - | 4.95 | 121,069 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,887 |
| Countries that End in O | 0 | - | 4.92 | 159,717 |
| Countries that End in R | 0 | - | 4.87 | 119,107 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,853 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,562 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,995 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,704 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,634 |
| Countries That End in Y | 0 | - | 4.91 | 186,021 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,273 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,125 |
| Countries that End in I | 0 | - | 4.94 | 135,248 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,448 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,971 |
| Countries That End in NIA | 0 | - | 4.92 | 109,954 |
| Countries That End in BIA | 0 | - | 4.93 | 149,445 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,382 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,656 |
| Countries That End in RIA | 0 | - | 4.93 | 126,971 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,262 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,237 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,019 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,454 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,019 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,726 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,225 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,507 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,774 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,577 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,577 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,263 |
| Countries that End in L | 0 | - | 4.94 | 157,029 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,943 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,316 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,522 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,335 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,211 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,203 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,991 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,336 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,120 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,806 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,104 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,189 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,777 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,154 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,047 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,962 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,843,801 |
| One Border Countries | 0 | - | 4.98 | 471,265 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,646,264 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,031 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,623 |
| Countries with the Highest Minimum Elevation | 0 | - | 4.86 | 16,246 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,196 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,737 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,503 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,791 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,070 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,473 |
| Majority Muslim Countries | 0 | - | 4.98 | 376,938 |
