| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,645 |
| Countries with Glaciers | 0 | - | 4.97 | 104,950 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,314 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,479 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,241,554 |
| Landlocked Countries | 0 | - | 4.99 | 417,588 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,534 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,748,227 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,364 |
| Himalayan Countries | 0 | - | 4.94 | 136,882 |
| Andean Countries | 0 | - | 4.95 | 83,660 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,923 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,249 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,590 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,173 |
| Danube Countries | 0 | - | 4.97 | 71,519 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,356 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,938 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,383 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,443 |
| European Landlocked Countries | 0 | - | 4.99 | 146,274 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,945 |
| Countries with the Most Species | 0 | - | 4.99 | 102,597 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,064 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,374 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,547 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,223 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,882 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,265 |
| Countries in the Alps | 0 | - | 4.86 | 117,485 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,000 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,110 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,334 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,839 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,941 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,357 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,117 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,076 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,882 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,424 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,416 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,265 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,824 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,091 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,100 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,933 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,968 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,492 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,358 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,637 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,878 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,903 |
| Largest Countries By Category | 0 | - | 4.97 | 157,434 |
| Countries by Countries | 0 | - | 4.96 | 62,712 |
| Country Flags with the Most White | 0 | - | 4.87 | 138,013 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,119 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,439 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,513 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,196 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,887 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,249 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,429 |
| Island Countries | 0 | - | 4.99 | 709,244 |
| Least-Forested Countries | 0 | - | 4.53 | 65,101 |
| Tropical Rainforest Countries | 0 | - | 4.69 | 81,929 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,645 |
| Northernmost Countries | 0 | - | 4.99 | 359,908 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,561 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,351 |
| Countries of South America | 0 | - | 5.00 | 921,210 |
| Countries of Oceania | 0 | - | 5.00 | 1,048,909 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,862,277 |
| "Land" Countries | 0 | - | 4.98 | 335,415 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 36,118 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,372,858 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,605 |
| Countries with Megacities | 0 | - | 4.99 | 249,622 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,446 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,742 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,791 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,705 |
| Countries by Official Language | 0 | - | 4.95 | 194,397 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,214 |
| Countries in their Native Language | 0 | - | 4.99 | 197,962 |
| Independence from Whom | 0 | - | 4.99 | 211,058 |
| Subdivisions by Country | 0 | - | 4.86 | 50,239 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,512 |
| Megadiverse Countries | 0 | - | 4.96 | 134,676 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,098 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,134 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,690 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,977 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,560 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,294 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,774 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,695 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,431 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,832 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,580 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,642 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,748 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,704 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,928 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,268 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,845 |
| World Map Quiz | 0 | - | 4.81 | 64,299 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,916 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,876 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,557 |
| Countries by Founding Story | 0 | - | 4.95 | 76,965 |
| Countries by Road Signs | 0 | - | 4.98 | 53,522 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,260 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,793 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,516 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,000 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,389 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,572 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,729 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,197 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,188 |
| Widest Countries East to West | 0 | - | 4.92 | 129,251 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,351 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,787 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,964 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,420 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,082 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,442 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,175 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.61 | 37,758 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,703 |
| Countries with Double Letters | 0 | - | 4.97 | 94,772 |
| Countries that End in N | 0 | - | 4.95 | 169,220 |
| Countries with Five Letters | 0 | - | 4.96 | 276,664 |
| Countries with Six Letters | 0 | - | 4.94 | 212,110 |
| Countries with W | 0 | - | 4.97 | 159,287 |
| Countries with Z | 0 | - | 4.98 | 289,458 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,488 |
| Countries That End in U | 0 | - | 4.95 | 120,280 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,507 |
| Countries that End in O | 0 | - | 4.92 | 159,098 |
| Countries that End in R | 0 | - | 4.87 | 118,647 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,427 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,086 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,942 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,964 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,554 |
| Countries That End in Y | 0 | - | 4.90 | 185,568 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,045 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,264 |
| Countries that End in I | 0 | - | 4.94 | 134,773 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,872 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,498 |
| Countries That End in NIA | 0 | - | 4.92 | 109,417 |
| Countries That End in BIA | 0 | - | 4.93 | 148,709 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,567 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,924 |
| Countries That End in RIA | 0 | - | 4.93 | 126,433 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,513 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,368 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,036 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,380 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,979 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,245 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,572 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,107 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,996 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,124 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,685 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,366 |
| Countries that End in L | 0 | - | 4.94 | 156,447 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,484 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,128 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,772 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,635 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,693 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,502 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,949 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,484 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,930 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,401 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,151 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,900 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,323 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,559 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,579 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,441,478 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,261 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,136 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,817,723 |
| One Border Countries | 0 | - | 4.98 | 467,028 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,609,099 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,405 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,140 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,201 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,406 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,125 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,493 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,173 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,217 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,782 |
