| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,498 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,429 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,179 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,245 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,655 |
| Five Most Elevated Countries by Continent | 0 | - | 4.98 | 112,752 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 120,553 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,261,918 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.61 | 37,762 |
| Landlocked Countries | 0 | - | 4.99 | 417,938 |
| Countries with Glaciers | 0 | - | 4.97 | 104,970 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,343 |
| Most Forested European Countries | 0 | - | 4.80 | 75,193 |
| Five Least Guessed Countries by Continent | 0 | - | 4.97 | 97,940 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,750,244 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 143,523 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.93 | 59,888 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 76,462 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,502 |
| Himalayan Countries | 0 | - | 4.94 | 136,998 |
| Andean Countries | 0 | - | 4.95 | 83,719 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,964 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,323 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,642 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,213 |
| Danube Countries | 0 | - | 4.97 | 71,555 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,398 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,968 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,458 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,514 |
| European Landlocked Countries | 0 | - | 4.99 | 146,595 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,984 |
| Countries with the Most Species | 0 | - | 4.99 | 102,692 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,120 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,384 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,553 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,242 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,906 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,290 |
| Countries in the Alps | 0 | - | 4.86 | 117,534 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,031 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,175 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,352 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,879 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,983 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,379 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,148 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,100 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,906 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,467 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,428 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,287 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,844 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,110 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,135 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,983 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,989 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,514 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,393 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,796 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,967 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,920 |
| Largest Countries By Category | 0 | - | 4.97 | 157,480 |
| Countries by Countries | 0 | - | 4.96 | 62,747 |
| Country Flags with the Most White | 0 | - | 4.87 | 138,065 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,126 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,232 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,567 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,370 |
| Five Most Guessed Countries by Continent | 0 | - | 4.97 | 172,236 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,730 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,075 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,315 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,582 |
| Island Countries | 0 | - | 4.99 | 709,334 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,373,484 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,931 |
| Northernmost Countries | 0 | - | 4.99 | 360,022 |
| Countries of South America | 0 | - | 5.00 | 921,631 |
| Countries of Oceania | 0 | - | 5.00 | 1,049,409 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,863,207 |
| "Land" Countries | 0 | - | 4.98 | 335,535 |
| Least Forested European Countries | 0 | - | 4.25 | 53,934 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,274 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,441,893 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,364 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,680 |
| Countries with Megacities | 0 | - | 4.99 | 249,773 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,518 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,785 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,850 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,773 |
| Countries by Official Language | 0 | - | 4.95 | 194,447 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,275 |
| Countries in their Native Language | 0 | - | 4.99 | 198,010 |
| Independence from Whom | 0 | - | 4.99 | 211,119 |
| Subdivisions by Country | 0 | - | 4.86 | 50,251 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,556 |
| Megadiverse Countries | 0 | - | 4.96 | 134,696 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,147 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,145 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,700 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,988 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,593 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,312 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,822 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,743 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,445 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,915 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,638 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,657 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,866 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,726 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,035 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,278 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,922 |
| World Map Quiz | 0 | - | 4.81 | 64,367 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,076 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,921 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,304 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,819 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,543 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,064 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,425 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,599 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,747 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,212 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,207 |
| Widest Countries East to West | 0 | - | 4.92 | 129,272 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,363 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,831 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,966 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,442 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,116 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,464 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,190 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,137 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,707 |
| Countries with Double Letters | 0 | - | 4.97 | 94,880 |
| Countries that End in N | 0 | - | 4.95 | 169,447 |
| Countries with Five Letters | 0 | - | 4.96 | 278,155 |
| Countries with Six Letters | 0 | - | 4.94 | 212,221 |
| Countries with W | 0 | - | 4.97 | 159,357 |
| Countries with Z | 0 | - | 4.98 | 289,568 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,568 |
| Countries That End in U | 0 | - | 4.95 | 120,332 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,579 |
| Countries that End in O | 0 | - | 4.92 | 159,132 |
| Countries that End in R | 0 | - | 4.87 | 118,673 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,459 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,143 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,994 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,994 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,585 |
| Countries That End in Y | 0 | - | 4.90 | 185,590 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,085 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,301 |
| Countries that End in I | 0 | - | 4.94 | 134,812 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,928 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,524 |
| Countries That End in NIA | 0 | - | 4.92 | 109,442 |
| Countries That End in BIA | 0 | - | 4.93 | 148,742 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,612 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,962 |
| Countries That End in RIA | 0 | - | 4.93 | 126,453 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,547 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,441 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,087 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,430 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,003 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,261 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,589 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,140 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,034 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,145 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,408 |
| Countries that End in L | 0 | - | 4.94 | 156,466 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,605 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,136 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,786 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,659 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,707 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,564 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,001 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,514 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,976 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,451 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,430 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,910 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,335 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,569 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,596 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,818,895 |
| One Border Countries | 0 | - | 4.98 | 467,172 |
| Least Forested Countries in Asia | 0 | - | 4.74 | 64,617 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,610,567 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,406 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,151 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,540 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,192 |
