| Country Chain | 0 | - | 4.96 | 215,704 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,587,289 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,128 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 116,086 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,213 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,816 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,174 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,909,316 |
| Landlocked Countries | 0 | - | 4.99 | 413,486 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,783 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,735 |
| Countries with Four Letters | 0 | - | 4.99 | 418,470 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,715,588 |
| Capital Cities Chain | 0 | - | 4.84 | 81,907 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,533 |
| Himalayan Countries | 0 | - | 4.95 | 135,312 |
| Andean Countries | 0 | - | 4.94 | 82,804 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,201 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,166 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,875 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,582 |
| Danube Countries | 0 | - | 4.97 | 71,067 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,744 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,525 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,446 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,370 |
| European Landlocked Countries | 0 | - | 4.99 | 145,738 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,182 |
| Countries with the Most Species | 0 | - | 4.99 | 95,235 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,319 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,197 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,365 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,299 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,950 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,419 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,568 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,943 |
| Countries in the Alps | 0 | - | 4.86 | 116,798 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,548 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,237 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,996 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,407 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,142 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,986 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,557 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,741 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,218 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,040 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,193 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,037 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,445 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,728 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,743 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,034 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,627 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,250 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,756 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,217 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,641 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,597 |
| Largest Countries By Category | 0 | - | 4.97 | 156,736 |
| Countries by Emojis | 0 | - | 4.99 | 236,133 |
| Countries by Countries | 0 | - | 4.96 | 62,247 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,097 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,963 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,360 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,959 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,329 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,752 |
| Islands by Country #1 | 0 | - | 4.87 | 174,470 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,903 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,271 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,327 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,766 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,777 |
| Name a Valid Country #1 | 0 | - | 4.99 | 283,419 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,358 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,535 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,764 |
| Name a Valid Country #6 | 0 | - | 4.95 | 126,367 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 711,380 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,735 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,076 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,780 |
| Island Countries | 0 | - | 4.99 | 707,569 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,310 |
| Northernmost Countries | 0 | - | 4.99 | 357,663 |
| Countries of South America | 0 | - | 5.00 | 914,491 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,205 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,847,928 |
| "Land" Countries | 0 | - | 4.98 | 333,616 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,427 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,440 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,329 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,331 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,842 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,361,963 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,666 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,618 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,539 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,784 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,297 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,420 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,590 |
| Random Countries by Borders | 0 | - | 4.99 | 81,661 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,189 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,116 |
| Countries with Megacities | 0 | - | 4.99 | 246,769 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,042 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,921 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,466 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,811 |
| Countries by Official Language | 0 | - | 4.95 | 192,746 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,087 |
| Countries in their Native Language | 0 | - | 4.99 | 196,611 |
| Independence from Whom | 0 | - | 4.99 | 209,656 |
| Subdivisions by Country | 0 | - | 4.86 | 50,062 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,724 |
| Megadiverse Countries | 0 | - | 4.97 | 133,889 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,776 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,915 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,423 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,854 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,636 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,988 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,912 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,133 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,209 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,738 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,543 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,406 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,483 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,493 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,659 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,014 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,546 |
| World Map Quiz | 0 | - | 4.81 | 63,485 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,600 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,317 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,326 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,975 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,935 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,712 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,842 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,049 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,265 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,937 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,327 |
| Widest Countries East to West | 0 | - | 4.92 | 128,595 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,215 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,195 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,562 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,681 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,620 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,029 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,049 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,576 |
| Countries with Double Letters | 0 | - | 4.97 | 93,365 |
| Countries that End in N | 0 | - | 4.94 | 156,680 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,660 |
| Countries with Six Letters | 0 | - | 4.93 | 210,328 |
| Countries with W | 0 | - | 4.97 | 158,209 |
| Countries with Z | 0 | - | 4.98 | 287,841 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,532 |
| Countries That End in U | 0 | - | 4.95 | 119,507 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,519 |
| Countries that End in O | 0 | - | 4.92 | 158,544 |
| Countries that End in R | 0 | - | 4.87 | 118,266 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,855 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,993 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,306 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,481 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,996 |
| Countries That End in Y | 0 | - | 4.90 | 185,194 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,348 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,667 |
| Countries that End in I | 0 | - | 4.94 | 134,403 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,173 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,185 |
| Countries That End in NIA | 0 | - | 4.92 | 108,997 |
| Countries That End in BIA | 0 | - | 4.92 | 147,702 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,048 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,474 |
| Countries That End in RIA | 0 | - | 4.93 | 126,067 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 109,990 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,162 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,507 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,883 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,344 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,922 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,105 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,631 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,493 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,810 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,117 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,798 |
| Countries that End in L | 0 | - | 4.94 | 155,711 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,115 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,985 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,504 |
