| Country Chain | 0 | - | 4.96 | 218,417 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,651,810 |
| Solve the Secret Country #1 | 0 | - | 4.93 | 168,139 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 120,365 |
| Anagram Chain - Countries | 0 | - | 4.98 | 117,635 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,994 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 65,882 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,865,718 |
| Landlocked Countries | 0 | - | 4.99 | 425,624 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,122,912 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 453,225 |
| Countries with Four Letters | 0 | - | 4.99 | 425,718 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,803,354 |
| Capital Cities Chain | 0 | - | 4.84 | 83,354 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,152 |
| Himalayan Countries | 0 | - | 4.93 | 140,159 |
| Andean Countries | 0 | - | 4.94 | 85,389 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,536 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,926 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,111 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,390 |
| Danube Countries | 0 | - | 4.97 | 72,357 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,563 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,811 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,074 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,567 |
| European Landlocked Countries | 0 | - | 4.99 | 147,587 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,268 |
| Countries with the Most Species | 0 | - | 4.99 | 103,548 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,377 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,768 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,874 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,959 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,825 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 184,357 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,563 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,990 |
| Countries in the Alps | 0 | - | 4.87 | 118,744 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,571 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,827 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,945 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,007 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,930 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,234 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,376 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,836 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,407 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,155 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,855 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,732 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,542 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,769 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,869 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,785 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,596 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,777 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,641 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,603 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,099 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,490 |
| Largest Countries By Category | 0 | - | 4.97 | 158,831 |
| Countries by Emojis | 0 | - | 4.99 | 242,379 |
| Countries by Countries | 0 | - | 4.96 | 63,624 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,566 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 323,745 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,227 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,391 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,660 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,090 |
| Islands by Country #1 | 0 | - | 4.90 | 176,316 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,208 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,534 |
| Regions of Countries #3 | 0 | - | 4.85 | 91,375 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 218,874 |
| Name a Valid Country #3 | 0 | - | 4.99 | 265,957 |
| Name a Valid Country #1 | 0 | - | 4.99 | 295,172 |
| Name a Valid Country #2 | 0 | - | 4.98 | 254,097 |
| Name a Valid Country #4 | 0 | - | 4.97 | 259,111 |
| Name a Valid Country #5 | 0 | - | 4.99 | 209,981 |
| Name a Valid Country #6 | 0 | - | 4.95 | 145,042 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 742,129 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,278 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,636 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,599 |
| Island Countries | 0 | - | 4.99 | 712,493 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,520 |
| Northernmost Countries | 0 | - | 4.99 | 363,911 |
| Countries of South America | 0 | - | 5.00 | 932,459 |
| Countries of Oceania | 0 | - | 5.00 | 1,063,035 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,888,714 |
| "Land" Countries | 0 | - | 4.98 | 338,343 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,711 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,697 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,651 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 111,084 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,903 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,393,230 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,434 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,664 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 238,133 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 227,078 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 193,693 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 124,009 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,520 |
| Random Countries by Borders | 0 | - | 4.99 | 83,074 |
| Random Name a Valid Country | 0 | - | 4.99 | 206,595 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,101 |
| Countries with Megacities | 0 | - | 4.99 | 267,016 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,806 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,106 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,124 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,219 |
| Countries by Official Language | 0 | - | 4.95 | 195,963 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,592 |
| Countries in their Native Language | 0 | - | 4.99 | 199,708 |
| Independence from Whom | 0 | - | 4.99 | 213,022 |
| Subdivisions by Country | 0 | - | 4.87 | 50,606 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,408 |
| Megadiverse Countries | 0 | - | 4.96 | 135,270 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,923 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,530 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,637 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,224 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,828 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,836 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,097 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,565 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,021 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,251 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,498 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,365 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,439 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,139 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,569 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,830 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,311 |
| World Map Quiz | 0 | - | 4.81 | 65,700 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,160 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,702 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,226 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,063 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,544 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,537 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,418 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,518 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,714 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,684 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,680 |
| Widest Countries East to West | 0 | - | 4.92 | 130,447 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,595 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,239 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,512 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,055 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,959 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,469 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,494 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,888 |
| Countries with Double Letters | 0 | - | 4.96 | 97,040 |
| Countries that End in N | 0 | - | 4.95 | 171,896 |
| Countries with Five Letters | 0 | - | 4.96 | 283,716 |
| Countries with Six Letters | 0 | - | 4.94 | 214,440 |
| Countries with W | 0 | - | 4.96 | 160,909 |
| Countries with Z | 0 | - | 4.98 | 292,406 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,265 |
| Countries That End in U | 0 | - | 4.95 | 121,176 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,078 |
| Countries that End in O | 0 | - | 4.92 | 160,201 |
| Countries that End in R | 0 | - | 4.87 | 119,175 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,928 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,807 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,132 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,814 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,742 |
| Countries That End in Y | 0 | - | 4.91 | 186,083 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,439 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,264 |
| Countries that End in I | 0 | - | 4.94 | 135,309 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,606 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,049 |
| Countries That End in NIA | 0 | - | 4.92 | 110,043 |
| Countries That End in BIA | 0 | - | 4.93 | 149,567 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,525 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,761 |
| Countries That End in RIA | 0 | - | 4.93 | 127,045 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,380 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,567 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,168 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,608 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,161 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,798 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,320 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,534 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,896 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,645 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,713 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,403 |
| Countries that End in L | 0 | - | 4.94 | 157,118 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 217,943 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,340 |
| City to Country Quiz #1 | 0 | - | 4.97 | 157,488 |
