| Country Chain | 0 | - | 4.96 | 216,484 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,605,731 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,469 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,255 |
| Anagram Chain - Countries | 0 | - | 4.98 | 115,885 |
| Countries but all Vowels are Changed to O | 0 | - | 4.93 | 68,758 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,909 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,190,488 |
| Landlocked Countries | 0 | - | 4.99 | 416,992 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,094,948 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,234 |
| Countries with Four Letters | 0 | - | 4.99 | 420,503 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,743,059 |
| Capital Cities Chain | 0 | - | 4.84 | 82,286 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,088 |
| Himalayan Countries | 0 | - | 4.95 | 136,648 |
| Andean Countries | 0 | - | 4.95 | 83,558 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,814 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,102 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,481 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,074 |
| Danube Countries | 0 | - | 4.97 | 71,466 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,277 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,877 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,224 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,219 |
| European Landlocked Countries | 0 | - | 4.99 | 146,164 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,826 |
| Countries with the Most Species | 0 | - | 4.99 | 102,196 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,953 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,347 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,526 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 199,083 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,185 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 170,378 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,835 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,214 |
| Countries in the Alps | 0 | - | 4.86 | 117,385 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,931 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,977 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,279 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,777 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,867 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,288 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,027 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,016 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,839 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,379 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,381 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,221 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,758 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,026 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,032 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,785 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,919 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,452 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,279 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,203 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,665 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,849 |
| Largest Countries By Category | 0 | - | 4.97 | 157,315 |
| Countries by Emojis | 0 | - | 4.99 | 237,907 |
| Countries by Countries | 0 | - | 4.96 | 62,630 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,480 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 318,870 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,919 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,089 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,414 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,121 |
| Islands by Country #1 | 0 | - | 4.87 | 174,863 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,201 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,557 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,525 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 215,219 |
| Name a Valid Country #3 | 0 | - | 4.99 | 261,832 |
| Name a Valid Country #1 | 0 | - | 4.99 | 287,289 |
| Name a Valid Country #2 | 0 | - | 4.98 | 249,222 |
| Name a Valid Country #4 | 0 | - | 4.97 | 254,191 |
| Name a Valid Country #5 | 0 | - | 4.99 | 205,158 |
| Name a Valid Country #6 | 0 | - | 4.94 | 128,416 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 716,634 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,262 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,956 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,012 |
| Island Countries | 0 | - | 4.99 | 708,957 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,753 |
| Northernmost Countries | 0 | - | 4.99 | 359,545 |
| Countries of South America | 0 | - | 5.00 | 920,160 |
| Countries of Oceania | 0 | - | 5.00 | 1,047,651 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,859,890 |
| "Land" Countries | 0 | - | 4.98 | 334,781 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,957 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,737 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,760 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,526 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,151 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,371,343 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,240 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,935 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 234,830 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 223,922 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 191,299 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,153 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 138,372 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,850 |
| Random Countries by Borders | 0 | - | 4.99 | 82,047 |
| Random Name a Valid Country | 0 | - | 4.99 | 204,217 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,417 |
| Countries with Megacities | 0 | - | 4.99 | 249,225 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,273 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,619 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,585 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,594 |
| Countries by Official Language | 0 | - | 4.95 | 194,090 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,894 |
| Countries in their Native Language | 0 | - | 4.99 | 197,712 |
| Independence from Whom | 0 | - | 4.99 | 210,894 |
| Subdivisions by Country | 0 | - | 4.86 | 50,214 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,407 |
| Megadiverse Countries | 0 | - | 4.96 | 134,573 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,911 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,089 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,648 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,956 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,474 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,256 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,656 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,576 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,391 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,813 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,371 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,598 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,698 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,665 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,877 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,227 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,669 |
| World Map Quiz | 0 | - | 4.81 | 64,168 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,581 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,737 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,115 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,705 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,434 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,790 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,304 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,493 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,657 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,163 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,706 |
| Widest Countries East to West | 0 | - | 4.92 | 129,177 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,335 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,703 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,935 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,973 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,011 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,389 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,129 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,683 |
| Countries with Double Letters | 0 | - | 4.96 | 94,270 |
| Countries that End in N | 0 | - | 4.95 | 167,705 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 261,368 |
| Countries with Six Letters | 0 | - | 4.93 | 211,289 |
| Countries with W | 0 | - | 4.97 | 158,931 |
| Countries with Z | 0 | - | 4.98 | 288,924 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,135 |
| Countries That End in U | 0 | - | 4.95 | 120,010 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,238 |
| Countries that End in O | 0 | - | 4.92 | 158,923 |
| Countries that End in R | 0 | - | 4.87 | 118,545 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,316 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,841 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,795 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,846 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,427 |
| Countries That End in Y | 0 | - | 4.90 | 185,464 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,903 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,130 |
| Countries that End in I | 0 | - | 4.94 | 134,702 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,743 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,430 |
| Countries That End in NIA | 0 | - | 4.92 | 109,319 |
| Countries That End in BIA | 0 | - | 4.93 | 148,606 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,457 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,807 |
| Countries That End in RIA | 0 | - | 4.93 | 126,371 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,374 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,163 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,901 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,235 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,843 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,171 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,478 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,984 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,877 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,040 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,560 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,256 |
| Countries that End in L | 0 | - | 4.94 | 156,325 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,066 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,084 |
