| Country Chain | 0 | - | 4.96 | 216,465 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,605,373 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,453 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,243 |
| Anagram Chain - Countries | 0 | - | 4.98 | 115,874 |
| Countries but all Vowels are Changed to O | 0 | - | 4.93 | 68,729 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,896 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,183,923 |
| Landlocked Countries | 0 | - | 4.99 | 416,927 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,094,770 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,188 |
| Countries with Four Letters | 0 | - | 4.99 | 420,454 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,742,520 |
| Capital Cities Chain | 0 | - | 4.84 | 82,281 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,053 |
| Himalayan Countries | 0 | - | 4.95 | 136,612 |
| Andean Countries | 0 | - | 4.95 | 83,543 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,795 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,083 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,469 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,062 |
| Danube Countries | 0 | - | 4.97 | 71,456 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,267 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,870 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,213 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,202 |
| European Landlocked Countries | 0 | - | 4.99 | 146,160 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,818 |
| Countries with the Most Species | 0 | - | 4.99 | 102,102 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,943 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,344 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,523 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 199,058 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,180 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 170,366 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,828 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,208 |
| Countries in the Alps | 0 | - | 4.86 | 117,370 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,926 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,954 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,274 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,767 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,862 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,277 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,016 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,009 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,829 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,367 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,376 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,215 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,749 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,022 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,027 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,767 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,917 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,445 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,270 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,157 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,641 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,844 |
| Largest Countries By Category | 0 | - | 4.97 | 157,302 |
| Countries by Emojis | 0 | - | 4.99 | 237,889 |
| Countries by Countries | 0 | - | 4.96 | 62,619 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,474 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 318,825 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,911 |
| 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 | 88,114 |
| Islands by Country #1 | 0 | - | 4.87 | 174,857 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,197 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,551 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,518 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 215,159 |
| Name a Valid Country #3 | 0 | - | 4.99 | 261,805 |
| Name a Valid Country #1 | 0 | - | 4.99 | 287,234 |
| Name a Valid Country #2 | 0 | - | 4.98 | 249,181 |
| Name a Valid Country #4 | 0 | - | 4.97 | 254,165 |
| Name a Valid Country #5 | 0 | - | 4.99 | 205,086 |
| Name a Valid Country #6 | 0 | - | 4.94 | 128,384 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 716,476 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,164 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,924 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,960 |
| Island Countries | 0 | - | 4.99 | 708,907 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,648 |
| Northernmost Countries | 0 | - | 4.99 | 359,490 |
| Countries of South America | 0 | - | 5.00 | 920,023 |
| Countries of Oceania | 0 | - | 5.00 | 1,047,468 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,859,607 |
| "Land" Countries | 0 | - | 4.98 | 334,710 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,948 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,725 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,754 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,524 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,144 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,371,145 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,232 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,934 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 234,794 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 223,892 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 191,274 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,136 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 138,322 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,847 |
| Random Countries by Borders | 0 | - | 4.99 | 82,026 |
| Random Name a Valid Country | 0 | - | 4.99 | 204,181 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,389 |
| Countries with Megacities | 0 | - | 4.99 | 249,164 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,246 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,606 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,568 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,572 |
| Countries by Official Language | 0 | - | 4.95 | 194,069 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,827 |
| Countries in their Native Language | 0 | - | 4.99 | 197,681 |
| Independence from Whom | 0 | - | 4.99 | 210,868 |
| Subdivisions by Country | 0 | - | 4.86 | 50,211 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,387 |
| Megadiverse Countries | 0 | - | 4.96 | 134,565 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,889 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,087 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,641 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,955 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,468 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,244 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,644 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,570 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,387 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,811 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,328 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,594 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,697 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,661 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,873 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,220 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,645 |
| World Map Quiz | 0 | - | 4.81 | 64,138 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,534 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,729 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,096 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,690 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,423 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,765 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,297 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,485 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,650 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,158 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,659 |
| Widest Countries East to West | 0 | - | 4.92 | 129,166 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,334 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,692 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,934 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,969 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,000 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,383 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,124 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,681 |
| Countries with Double Letters | 0 | - | 4.96 | 94,215 |
| Countries that End in N | 0 | - | 4.95 | 167,318 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,678 |
| Countries with Six Letters | 0 | - | 4.93 | 211,211 |
| Countries with W | 0 | - | 4.97 | 158,891 |
| Countries with Z | 0 | - | 4.98 | 288,871 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,101 |
| Countries That End in U | 0 | - | 4.95 | 119,975 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,213 |
| Countries that End in O | 0 | - | 4.92 | 158,901 |
| Countries that End in R | 0 | - | 4.87 | 118,537 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,306 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,813 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,782 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,838 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,412 |
| Countries That End in Y | 0 | - | 4.90 | 185,452 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,884 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,117 |
| Countries that End in I | 0 | - | 4.94 | 134,695 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,734 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,424 |
| Countries That End in NIA | 0 | - | 4.92 | 109,314 |
| Countries That End in BIA | 0 | - | 4.93 | 148,600 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,452 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,797 |
| Countries That End in RIA | 0 | - | 4.93 | 126,362 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,363 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,146 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,891 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,225 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,821 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,164 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,468 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,972 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,869 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,032 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,547 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,239 |
| Countries that End in L | 0 | - | 4.94 | 156,313 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,011 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,074 |
