| Country Chain | 0 | - | 4.96 | 218,535 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,655,791 |
| Solve the Secret Country #1 | 0 | - | 4.93 | 168,424 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 120,619 |
| Anagram Chain - Countries | 0 | - | 4.98 | 117,800 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 71,174 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 66,045 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,917,628 |
| Landlocked Countries | 0 | - | 4.99 | 426,503 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,126,351 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 453,785 |
| Countries with Four Letters | 0 | - | 4.99 | 426,055 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,807,640 |
| Capital Cities Chain | 0 | - | 4.84 | 83,442 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,528 |
| Himalayan Countries | 0 | - | 4.93 | 140,465 |
| Andean Countries | 0 | - | 4.94 | 85,606 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,743 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,201 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,308 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,542 |
| Danube Countries | 0 | - | 4.97 | 72,466 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,676 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,897 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,258 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,729 |
| European Landlocked Countries | 0 | - | 4.99 | 147,665 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,393 |
| Countries with the Most Species | 0 | - | 4.99 | 103,603 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,503 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,790 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,910 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 202,156 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,875 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 184,520 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,614 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,065 |
| Countries in the Alps | 0 | - | 4.87 | 118,854 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,784 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,986 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,009 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,088 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,037 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,318 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,469 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,916 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,462 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,228 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,912 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,780 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,604 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,844 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,945 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,974 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,654 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 75,483 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,741 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,939 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,292 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,550 |
| Largest Countries By Category | 0 | - | 4.97 | 158,946 |
| Countries by Emojis | 0 | - | 4.99 | 242,619 |
| Countries by Countries | 0 | - | 4.96 | 63,706 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,638 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 323,994 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,327 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,424 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,688 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,149 |
| Islands by Country #1 | 0 | - | 4.90 | 176,420 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,287 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,605 |
| Regions of Countries #3 | 0 | - | 4.85 | 91,429 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 219,249 |
| Name a Valid Country #3 | 0 | - | 4.99 | 266,170 |
| Name a Valid Country #1 | 0 | - | 4.99 | 295,624 |
| Name a Valid Country #2 | 0 | - | 4.98 | 254,355 |
| Name a Valid Country #4 | 0 | - | 4.97 | 259,346 |
| Name a Valid Country #5 | 0 | - | 4.99 | 210,203 |
| Name a Valid Country #6 | 0 | - | 4.95 | 145,422 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 743,886 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,949 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,836 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,978 |
| Island Countries | 0 | - | 4.99 | 712,744 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,312 |
| Northernmost Countries | 0 | - | 4.99 | 364,264 |
| Countries of South America | 0 | - | 5.00 | 933,350 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,332 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,890,874 |
| "Land" Countries | 0 | - | 4.98 | 338,535 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,815 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,767 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,706 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 111,138 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,975 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,395,172 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,572 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,782 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 238,339 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 227,234 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 193,843 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 124,193 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,582 |
| Random Countries by Borders | 0 | - | 4.99 | 83,139 |
| Random Name a Valid Country | 0 | - | 4.99 | 206,755 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,307 |
| Countries with Megacities | 0 | - | 4.99 | 267,425 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,977 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,225 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,305 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,327 |
| Countries by Official Language | 0 | - | 4.95 | 196,103 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,771 |
| Countries in their Native Language | 0 | - | 4.99 | 199,832 |
| Independence from Whom | 0 | - | 4.99 | 213,209 |
| Subdivisions by Country | 0 | - | 4.87 | 50,640 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,554 |
| Megadiverse Countries | 0 | - | 4.96 | 143,798 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,026 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,554 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,745 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,237 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,344 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,884 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,178 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,590 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,119 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,275 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,631 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,429 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,462 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,172 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,602 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,912 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,518 |
| World Map Quiz | 0 | - | 4.81 | 65,817 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,522 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,756 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,373 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,150 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,616 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,724 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,482 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,601 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,788 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,722 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,838 |
| Widest Countries East to West | 0 | - | 4.92 | 130,776 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,615 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,302 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,534 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,095 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,035 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,532 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,516 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,906 |
| Countries with Double Letters | 0 | - | 4.96 | 97,211 |
| Countries that End in N | 0 | - | 4.95 | 172,266 |
| Countries with Five Letters | 0 | - | 4.96 | 284,173 |
| Countries with Six Letters | 0 | - | 4.94 | 214,630 |
| Countries with W | 0 | - | 4.96 | 161,048 |
| Countries with Z | 0 | - | 4.98 | 292,600 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,385 |
| Countries That End in U | 0 | - | 4.95 | 121,243 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,193 |
| Countries that End in O | 0 | - | 4.92 | 160,267 |
| Countries that End in R | 0 | - | 4.87 | 119,215 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,977 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,960 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,224 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,875 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,807 |
| Countries That End in Y | 0 | - | 4.91 | 186,113 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,532 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,325 |
| Countries that End in I | 0 | - | 4.94 | 135,361 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,691 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,089 |
| Countries That End in NIA | 0 | - | 4.92 | 110,095 |
| Countries That End in BIA | 0 | - | 4.93 | 149,639 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,769 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,810 |
| Countries That End in RIA | 0 | - | 4.93 | 127,089 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,445 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,740 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,257 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,712 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,259 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,839 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,364 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,555 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,965 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,672 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,792 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,487 |
| Countries that End in L | 0 | - | 4.94 | 157,180 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,214 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,361 |
| City to Country Quiz #1 | 0 | - | 4.97 | 157,574 |
