| "Land" Countries | 0 | - | 4.98 | 337,432 |
| Countries with Double Letters | 0 | - | 4.96 | 96,297 |
| Countries that End in N | 0 | - | 4.95 | 171,189 |
| Countries with Five Letters | 0 | - | 4.96 | 282,611 |
| Countries with Six Letters | 0 | - | 4.94 | 213,627 |
| Countries with W | 0 | - | 4.97 | 160,377 |
| Countries with Z | 0 | - | 4.98 | 291,536 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,748 |
| Countries That End in U | 0 | - | 4.95 | 120,870 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,508 |
| Countries that End in O | 0 | - | 4.92 | 159,528 |
| Countries that End in R | 0 | - | 4.87 | 118,977 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,745 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,158 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,723 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,497 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,417 |
| Countries That End in Y | 0 | - | 4.91 | 185,890 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,961 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,887 |
| Countries that End in I | 0 | - | 4.94 | 135,112 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,144 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,833 |
| Countries That End in NIA | 0 | - | 4.92 | 109,802 |
| Countries That End in BIA | 0 | - | 4.93 | 149,232 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,142 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,447 |
| Countries That End in RIA | 0 | - | 4.93 | 126,821 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,039 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,697 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,740 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,166 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,723 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,588 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,051 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,450 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,543 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,439 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,320 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,005 |
| Countries that End in L | 0 | - | 4.94 | 156,862 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,901 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,273 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,609,654 |
| Landlocked Countries | 0 | - | 4.99 | 422,317 |
| Countries with Four Letters | 0 | - | 4.99 | 423,453 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,781,124 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,692 |
| Himalayan Countries | 0 | - | 4.95 | 138,897 |
| Andean Countries | 0 | - | 4.93 | 84,710 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,911 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,973 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,531 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,871 |
| Danube Countries | 0 | - | 4.97 | 72,058 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,073 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,468 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,375 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,866 |
| European Landlocked Countries | 0 | - | 4.99 | 147,188 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,715 |
| Countries with the Most Species | 0 | - | 4.99 | 103,271 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,832 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,613 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,735 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,574 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,261 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,707 |
| Countries in the Alps | 0 | - | 4.87 | 118,263 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,338 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,093 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,692 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,633 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,556 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,978 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,714 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,537 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,202 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,889 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,673 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,547 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,257 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,509 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,567 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,985 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,340 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,201 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,137 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,111 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,224 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,261 |
| Largest Countries By Category | 0 | - | 4.97 | 158,275 |
| Countries by Countries | 0 | - | 4.96 | 63,271 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,738 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,304 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,576 |
| All Countries by Population With a Map | 0 | - | 4.98 | 109,712 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,061 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,707 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,816 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 217,469 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,836 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,607 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,555 |
| Island Countries | 0 | - | 4.99 | 711,163 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,298 |
| Northernmost Countries | 0 | - | 4.99 | 362,114 |
| Countries of South America | 0 | - | 5.00 | 927,804 |
| Countries of Oceania | 0 | - | 5.00 | 1,057,593 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,878,396 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,384,502 |
| Countries with J | 0 | - | 4.55 | 185,372 |
| Countries by Consonants | 0 | - | 4.42 | 78,748 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,980 |
| Countries with Megacities | 0 | - | 4.99 | 264,759 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,821 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,517 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,076 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,592 |
| Countries by Official Language | 0 | - | 4.95 | 195,316 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,472 |
| Countries in their Native Language | 0 | - | 4.99 | 199,109 |
| Independence from Whom | 0 | - | 4.99 | 212,177 |
| Subdivisions by Country | 0 | - | 4.86 | 50,440 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,793 |
| Megadiverse Countries | 0 | - | 4.96 | 135,047 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,158 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,377 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,253 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,120 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,179 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,615 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,518 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,052 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,677 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,160 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,736 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,909 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,224 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,985 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,372 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,512 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,282 |
| World Map Quiz | 0 | - | 4.81 | 65,141 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,457 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,383 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.84 | 64,169 |
| Countries by Founding Story | 0 | - | 4.95 | 77,402 |
| Countries by Road Signs | 0 | - | 4.98 | 54,047 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,156 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,316 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,028 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,297 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,928 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,041 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,324 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,463 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,598 |
| Widest Countries East to West | 0 | - | 4.92 | 129,684 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,464 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,422 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,133 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,790 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,625 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,905 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,384 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,807 |
| Countries With the Tallest People | 0 | - | 4.93 | 94,999 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,039 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,969 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,018 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,803 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,690 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,115 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,797 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,499 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,890 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,116 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,714 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,891 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,717 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,092 |
| One Border Countries | 0 | - | 4.98 | 470,046 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,836,033 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,634,195 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,864 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,489 |
| Most Similar Country Names | 0 | - | 4.16 | 46,557 |
| Longest Country Name A-Z | 0 | - | 4.32 | 42,210 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,975 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,270 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,202 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,593 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,772 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,247 |
| Countries by National Anthem | 0 | - | 4.93 | 71,302 |
| NATO Countries | 0 | - | 4.98 | 281,673 |
| EU Countries Quiz | 0 | - | 4.99 | 275,700 |
| Recently Independent Countries | 0 | - | 4.98 | 159,507 |
| French-Speaking Countries | 0 | - | 4.85 | 270,934 |
