| Country Chain | 0 | - | 4.96 | 217,733 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,635,973 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 166,605 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 119,124 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,909 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,113 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 65,028 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,630,570 |
| Landlocked Countries | 0 | - | 4.99 | 422,584 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,106,556 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,748 |
| Countries with Four Letters | 0 | - | 4.99 | 423,630 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,783,036 |
| Capital Cities Chain | 0 | - | 4.84 | 83,013 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,824 |
| Himalayan Countries | 0 | - | 4.95 | 139,003 |
| Andean Countries | 0 | - | 4.93 | 84,784 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,010 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,086 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,597 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,919 |
| Danube Countries | 0 | - | 4.97 | 72,094 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,120 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,490 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,441 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,925 |
| European Landlocked Countries | 0 | - | 4.99 | 147,226 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,759 |
| Countries with the Most Species | 0 | - | 4.99 | 103,303 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,876 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,629 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,748 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,210 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,597 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 183,518 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,316 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,737 |
| Countries in the Alps | 0 | - | 4.87 | 118,307 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,491 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,172 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,717 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,668 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,581 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,996 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,747 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,564 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,224 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,917 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,689 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,571 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,290 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,536 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,598 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,044 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,364 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,446 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,197 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,262 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,308 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,279 |
| Largest Countries By Category | 0 | - | 4.97 | 158,331 |
| Countries by Emojis | 0 | - | 4.99 | 240,603 |
| Countries by Countries | 0 | - | 4.96 | 63,311 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,166 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 321,965 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,766 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,308 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,579 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,747 |
| Islands by Country #1 | 0 | - | 4.90 | 175,600 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,762 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,137 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,901 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 217,580 |
| Name a Valid Country #3 | 0 | - | 4.99 | 263,826 |
| Name a Valid Country #1 | 0 | - | 4.99 | 291,630 |
| Name a Valid Country #2 | 0 | - | 4.98 | 251,678 |
| Name a Valid Country #4 | 0 | - | 4.97 | 256,830 |
| Name a Valid Country #5 | 0 | - | 4.99 | 207,826 |
| Name a Valid Country #6 | 0 | - | 4.94 | 130,080 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 726,921 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,129 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,682 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,702 |
| Island Countries | 0 | - | 4.99 | 711,248 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,612 |
| Northernmost Countries | 0 | - | 4.99 | 362,258 |
| Countries of South America | 0 | - | 5.00 | 928,195 |
| Countries of Oceania | 0 | - | 5.00 | 1,058,035 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,879,136 |
| "Land" Countries | 0 | - | 4.98 | 337,515 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,231 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,391 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,324 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,887 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,635 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,385,187 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,004 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,383 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,847 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 225,767 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,738 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,217 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,272 |
| Random Countries by Borders | 0 | - | 4.99 | 82,710 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,528 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,073 |
| Countries with Megacities | 0 | - | 4.99 | 264,978 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,894 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,574 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,156 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,647 |
| Countries by Official Language | 0 | - | 4.95 | 195,365 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,537 |
| Countries in their Native Language | 0 | - | 4.99 | 199,154 |
| Independence from Whom | 0 | - | 4.99 | 212,244 |
| Subdivisions by Country | 0 | - | 4.87 | 50,456 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,835 |
| Megadiverse Countries | 0 | - | 4.96 | 135,063 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,196 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,390 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,268 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,128 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,207 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,636 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,553 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,101 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,690 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,166 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,804 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,927 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,236 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,999 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,391 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,519 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,370 |
| World Map Quiz | 0 | - | 4.81 | 65,180 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,596 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,409 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,210 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,350 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,052 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,397 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,954 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,063 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,343 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,478 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,614 |
| Widest Countries East to West | 0 | - | 4.92 | 129,714 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,471 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,450 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,143 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,809 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,642 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,925 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,396 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,813 |
| Countries with Double Letters | 0 | - | 4.96 | 96,368 |
| Countries that End in N | 0 | - | 4.95 | 171,261 |
| Countries with Five Letters | 0 | - | 4.96 | 282,737 |
| Countries with Six Letters | 0 | - | 4.94 | 213,696 |
| Countries with W | 0 | - | 4.97 | 160,426 |
| Countries with Z | 0 | - | 4.98 | 291,607 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,791 |
| Countries That End in U | 0 | - | 4.95 | 120,894 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,549 |
| Countries that End in O | 0 | - | 4.92 | 159,548 |
| Countries that End in R | 0 | - | 4.87 | 118,999 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,761 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,222 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,753 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,522 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,445 |
| Countries That End in Y | 0 | - | 4.91 | 185,908 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,000 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,920 |
| Countries that End in I | 0 | - | 4.94 | 135,133 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,179 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,851 |
| Countries That End in NIA | 0 | - | 4.92 | 109,830 |
| Countries That End in BIA | 0 | - | 4.93 | 149,261 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,165 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,476 |
| Countries That End in RIA | 0 | - | 4.93 | 126,851 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,070 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,761 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,779 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,205 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,759 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,608 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,072 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,460 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,575 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,455 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,345 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,047 |
| Countries that End in L | 0 | - | 4.94 | 156,881 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,049 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,281 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,065 |
