| Islands by Country #1 | 0 | - | 4.90 | 176,028 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,055 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,395 |
| Regions of Countries #3 | 0 | - | 4.85 | 91,262 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,428 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,644,618 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 167,340 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 119,730 |
| Anagram Chain - Countries | 0 | - | 4.98 | 117,255 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,568 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 65,430 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,750,709 |
| Landlocked Countries | 0 | - | 4.99 | 424,076 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,109,882 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 452,583 |
| Countries with Four Letters | 0 | - | 4.99 | 424,925 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 337,571 |
| Musical Acts by Country #1 | 0 | - | 4.45 | 79,922 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,793,590 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,447 |
| Himalayan Countries | 0 | - | 4.94 | 139,618 |
| Andean Countries | 0 | - | 4.94 | 85,105 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,293 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,524 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,861 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,152 |
| Danube Countries | 0 | - | 4.97 | 72,233 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,351 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,657 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,761 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,259 |
| European Landlocked Countries | 0 | - | 4.99 | 147,407 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,015 |
| Countries with the Most Species | 0 | - | 4.99 | 103,440 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,143 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,691 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,802 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,637 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,715 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 184,033 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,446 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,864 |
| Countries in the Alps | 0 | - | 4.87 | 118,514 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,160 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,496 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,826 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,831 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,761 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,107 |
| Country Chain | 0 | - | 4.96 | 218,067 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,953 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,695 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,317 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,030 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,770 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,638 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,407 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,649 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,740 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,418 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,488 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,363 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,425 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,014 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,722 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,397 |
| Largest Countries By Category | 0 | - | 4.97 | 158,577 |
| Countries by Emojis | 0 | - | 4.99 | 241,283 |
| Countries by Countries | 0 | - | 4.96 | 63,460 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,382 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 322,953 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,033 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,355 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,929 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 218,236 |
| Name a Valid Country #3 | 0 | - | 4.99 | 265,205 |
| Name a Valid Country #1 | 0 | - | 4.99 | 293,899 |
| Name a Valid Country #2 | 0 | - | 4.98 | 253,278 |
| Name a Valid Country #4 | 0 | - | 4.97 | 258,323 |
| Name a Valid Country #5 | 0 | - | 4.99 | 209,245 |
| Name a Valid Country #6 | 0 | - | 4.95 | 142,146 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 737,774 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,478 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,182 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,685 |
| Island Countries | 0 | - | 4.99 | 711,878 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,052,764 |
| Northernmost Countries | 0 | - | 4.99 | 363,210 |
| Mountains by Country | 0 | - | 4.56 | 81,934 |
| Islands by Country #2 | 0 | - | 4.80 | 77,737 |
| Countries of South America | 0 | - | 5.00 | 930,268 |
| Countries of Oceania | 0 | - | 5.00 | 1,060,651 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,884,103 |
| "Land" Countries | 0 | - | 4.98 | 337,951 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,509 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,561 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,504 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,984 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,766 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,389,382 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,202 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,502 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 237,574 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 226,555 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 193,276 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,672 |
| Movies by Country Quiz #1 | 0 | - | 4.17 | 53,410 |
| Movies by Country #2 | 0 | - | 4.20 | 45,809 |
| Random Countries by Borders | 0 | - | 4.99 | 82,876 |
| Random Name a Valid Country | 0 | - | 4.99 | 206,117 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,513 |
| Countries with Megacities | 0 | - | 4.99 | 266,007 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,301 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,771 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,558 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,896 |
| Countries by Official Language | 0 | - | 4.95 | 195,690 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,188 |
| Countries in their Native Language | 0 | - | 4.99 | 199,465 |
| Independence from Whom | 0 | - | 4.99 | 212,646 |
| Subdivisions by Country | 0 | - | 4.87 | 50,543 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,138 |
| Megadiverse Countries | 0 | - | 4.96 | 135,167 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,496 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,465 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,360 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,169 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,395 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,716 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,819 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,479 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,758 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,214 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,124 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,279 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,345 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,071 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,487 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,612 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,903 |
| World Map Quiz | 0 | - | 4.81 | 65,400 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,403 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,543 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,890 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,757 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,386 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,082 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,231 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,362 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,561 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,601 |
| Tallest Countries North to South | 0 | - | 4.86 | 129,593 |
| Widest Countries East to West | 0 | - | 4.92 | 130,255 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,544 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,052 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,449 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,949 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,824 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,317 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,454 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,858 |
| Countries with Double Letters | 0 | - | 4.96 | 96,730 |
| Countries that End in N | 0 | - | 4.95 | 171,615 |
| Countries with Five Letters | 0 | - | 4.96 | 283,279 |
| Countries with Six Letters | 0 | - | 4.94 | 214,068 |
| Countries with W | 0 | - | 4.96 | 160,684 |
| Countries with Z | 0 | - | 4.98 | 292,029 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,044 |
| Countries That End in U | 0 | - | 4.95 | 121,046 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,830 |
| Countries that End in O | 0 | - | 4.92 | 159,686 |
| Countries that End in R | 0 | - | 4.87 | 119,085 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,840 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,514 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,964 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,676 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,599 |
| Countries That End in Y | 0 | - | 4.91 | 186,011 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,227 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,101 |
| Countries that End in I | 0 | - | 4.94 | 135,226 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,413 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,951 |
| Countries That End in NIA | 0 | - | 4.92 | 109,937 |
| Countries That End in BIA | 0 | - | 4.93 | 149,423 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,355 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,645 |
| Countries That End in RIA | 0 | - | 4.93 | 126,955 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,241 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,160 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,979 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,417 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,970 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,704 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,211 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,495 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,742 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,559 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,536 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 54,230 |
