| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,681 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,542 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,424 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,257 |
| Landlocked Countries | 0 | - | 4.99 | 417,490 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,232,510 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 144,008 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,319 |
| Himalayan Countries | 0 | - | 4.95 | 136,837 |
| Andean Countries | 0 | - | 4.95 | 83,645 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,898 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,221 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,569 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,163 |
| Danube Countries | 0 | - | 4.97 | 71,511 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,343 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,925 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,364 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,397 |
| European Landlocked Countries | 0 | - | 4.99 | 146,224 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,918 |
| Countries with the Most Species | 0 | - | 4.99 | 102,541 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,045 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,368 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,542 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,215 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,874 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,261 |
| Countries in the Alps | 0 | - | 4.86 | 117,468 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,992 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,089 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,326 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,833 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,929 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,343 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,107 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,063 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,877 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,416 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,413 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,257 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,811 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,078 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,085 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,901 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,959 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,487 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,340 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,545 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,846 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,888 |
| Largest Countries By Category | 0 | - | 4.97 | 157,403 |
| Countries by Countries | 0 | - | 4.96 | 62,699 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,994 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,114 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,434 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,046 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,503 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,183 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,747,397 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,781 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,203 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,366 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,482 |
| Northernmost Countries | 0 | - | 4.99 | 359,850 |
| Countries of South America | 0 | - | 5.00 | 920,934 |
| Countries of Oceania | 0 | - | 5.00 | 1,048,693 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,861,877 |
| "Land" Countries | 0 | - | 4.98 | 335,357 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,372,618 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,568 |
| Countries with Megacities | 0 | - | 4.99 | 249,563 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,414 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,721 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,760 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,685 |
| Countries by Official Language | 0 | - | 4.95 | 194,357 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,169 |
| Countries in their Native Language | 0 | - | 4.99 | 197,928 |
| Independence from Whom | 0 | - | 4.99 | 211,032 |
| Subdivisions by Country | 0 | - | 4.86 | 50,237 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,493 |
| Megadiverse Countries | 0 | - | 4.96 | 134,658 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,077 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,124 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,971 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,286 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,747 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,672 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,825 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,552 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,633 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,733 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,695 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,913 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,819 |
| World Map Quiz | 0 | - | 4.81 | 64,264 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,865 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,847 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.85 | 63,623 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,530 |
| Countries by Founding Story | 0 | - | 4.95 | 76,953 |
| Countries by Road Signs | 0 | - | 4.98 | 53,515 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,236 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,776 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,502 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,969 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,380 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,558 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,713 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,192 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,184 |
| Widest Countries East to West | 0 | - | 4.92 | 129,249 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,347 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,776 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,959 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,324 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,071 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,437 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,171 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,700 |
| Countries with Double Letters | 0 | - | 4.97 | 94,732 |
| Countries that End in N | 0 | - | 4.95 | 169,073 |
| Countries with Five Letters | 0 | - | 4.96 | 275,826 |
| Countries with Six Letters | 0 | - | 4.94 | 212,024 |
| Countries with W | 0 | - | 4.97 | 159,249 |
| Countries with Z | 0 | - | 4.98 | 289,397 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,454 |
| Countries That End in U | 0 | - | 4.95 | 120,261 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,483 |
| Countries that End in O | 0 | - | 4.92 | 159,073 |
| Countries that End in R | 0 | - | 4.87 | 118,638 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,409 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,042 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,926 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,947 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,531 |
| Countries That End in Y | 0 | - | 4.90 | 185,550 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,022 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,243 |
| Countries that End in I | 0 | - | 4.94 | 134,759 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,851 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,482 |
| Countries That End in NIA | 0 | - | 4.92 | 109,404 |
| Countries That End in BIA | 0 | - | 4.93 | 148,687 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,554 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,907 |
| Countries That End in RIA | 0 | - | 4.93 | 126,426 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,491 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,332 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,013 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,348 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,959 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,233 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,562 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,091 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,974 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,116 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,669 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,357 |
| Countries that End in L | 0 | - | 4.94 | 156,422 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,432 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,124 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,766 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,633 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,687 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,486 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,929 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,469 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,918 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,390 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,119 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,898 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,317 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,552 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,572 |
| Name a Valid Island Country | 0 | - | 4.96 | 114,605 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,148 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,441,308 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,205 |
| One Border Countries | 0 | - | 4.98 | 466,948 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,197 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,817,242 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,608,378 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,383 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,103 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,475 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,164 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,204 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,759 |
| Countries by National Anthem | 0 | - | 4.92 | 71,152 |
| NATO Countries | 0 | - | 4.98 | 278,633 |
| EU Countries Quiz | 0 | - | 4.99 | 272,191 |
| Recently Independent Countries | 0 | - | 4.98 | 158,501 |
| French-Speaking Countries | 0 | - | 4.85 | 269,970 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,691 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,201 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,855 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 271,034 |
| German-Speaking Countries | 0 | - | 4.91 | 144,806 |
