| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,619,822 |
| Countries by Languages in 90 Seconds | 0 | - | 4.94 | 720,129 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 279,188 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 383,049 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,406,749 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,100,354 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 450,326 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 165,507 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 118,163 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,399 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 137,696 |
| Countries with Four Letters | 0 | - | 4.99 | 422,094 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,453 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,474 |
| Landlocked Countries | 0 | - | 4.99 | 419,824 |
| Countries of the World - One Minute Sprint | 0 | - | 4.36 | 976,069 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 200,386 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 180,946 |
| Country Chain | 0 | - | 4.96 | 216,999 |
| Countries by Emojis | 0 | - | 4.99 | 239,446 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 55,853 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 320,353 |
| Islands by Country #1 | 0 | - | 4.88 | 175,214 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,481 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,817 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,688 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,763,037 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 216,461 |
| Name a Valid Country #3 | 0 | - | 4.99 | 262,822 |
| Name a Valid Country #1 | 0 | - | 4.99 | 289,428 |
| Name a Valid Country #2 | 0 | - | 4.98 | 250,468 |
| Name a Valid Country #4 | 0 | - | 4.97 | 255,354 |
| Name a Valid Country #5 | 0 | - | 4.99 | 206,744 |
| Name a Valid Country #6 | 0 | - | 4.94 | 129,237 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,375 |
| Himalayan Countries | 0 | - | 4.95 | 137,809 |
| Andean Countries | 0 | - | 4.95 | 84,120 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,346 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,903 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,984 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,459 |
| Danube Countries | 0 | - | 4.97 | 71,752 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,681 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,152 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,830 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,902 |
| European Landlocked Countries | 0 | - | 4.99 | 146,876 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,263 |
| Countries with the Most Species | 0 | - | 4.99 | 103,018 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,419 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,461 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,632 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,382 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,055 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,450 |
| Countries in the Alps | 0 | - | 4.87 | 117,846 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,234 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,569 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,477 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,360 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,223 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,787 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,386 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,269 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,031 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,635 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,531 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,378 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,000 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,275 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,293 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,393 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,124 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,634 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,689 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,824 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,480 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,051 |
| Largest Countries By Category | 0 | - | 4.97 | 157,802 |
| Countries by Countries | 0 | - | 4.97 | 62,939 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,355 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,186 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,492 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,433 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,774 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,859 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,860 |
| Island Countries | 0 | - | 4.99 | 710,140 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,047,084 |
| Northernmost Countries | 0 | - | 4.99 | 360,924 |
| Countries of South America | 0 | - | 5.00 | 924,199 |
| Countries of Oceania | 0 | - | 5.00 | 1,052,948 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,869,724 |
| "Land" Countries | 0 | - | 4.98 | 336,027 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,827 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,118 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,053 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,719 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,416 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,377,936 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,620 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,155 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 235,892 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 224,863 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,054 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,712 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 139,369 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 79,393 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,045 |
| Random Countries by Borders | 0 | - | 4.99 | 82,374 |
| Random Name a Valid Country | 0 | - | 4.99 | 204,927 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.95 | 239,582 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,288 |
| Countries with Megacities | 0 | - | 4.99 | 262,626 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,124 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,135 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,423 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,183 |
| Random World Capitals on a Map | 0 | - | 4.93 | 134,501 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 89,282 |
| Countries by Official Language | 0 | - | 4.95 | 194,818 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,775 |
| Countries in their Native Language | 0 | - | 4.99 | 198,361 |
| Independence from Whom | 0 | - | 4.99 | 211,558 |
| Subdivisions by Country | 0 | - | 4.86 | 50,331 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,873 |
| Megadiverse Countries | 0 | - | 4.96 | 134,835 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,689 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,222 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,798 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,040 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,830 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,443 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,112 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,899 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,534 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,023 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,211 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,767 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,046 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,833 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,212 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,380 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,421 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,475 |
| World Map Quiz | 0 | - | 4.81 | 64,746 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,035 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,132 |
| Countries by Founding Story | 0 | - | 4.95 | 77,150 |
| Countries by Road Signs | 0 | - | 4.98 | 53,742 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,674 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,031 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,764 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,617 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,630 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,776 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,912 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,327 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,369 |
| Widest Countries East to West | 0 | - | 4.92 | 129,448 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,406 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,081 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,035 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,588 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,332 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,648 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,283 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,746 |
| Countries with Double Letters | 0 | - | 4.97 | 95,277 |
| Countries that End in N | 0 | - | 4.95 | 170,288 |
| Countries with Five Letters | 0 | - | 4.96 | 281,055 |
| Countries with Six Letters | 0 | - | 4.94 | 212,720 |
| Countries with W | 0 | - | 4.97 | 159,646 |
| Countries with Z | 0 | - | 4.98 | 290,508 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,899 |
| Countries That End in U | 0 | - | 4.95 | 120,482 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,906 |
| Countries that End in O | 0 | - | 4.92 | 159,259 |
| Countries that End in R | 0 | - | 4.87 | 118,779 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,550 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,508 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,271 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,167 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,783 |
| Countries That End in Y | 0 | - | 4.91 | 185,691 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,439 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,534 |
| Countries that End in I | 0 | - | 4.94 | 134,918 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,637 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,634 |
| Countries That End in NIA | 0 | - | 4.92 | 109,579 |
| Countries That End in BIA | 0 | - | 4.93 | 148,925 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,829 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,152 |
| Countries That End in RIA | 0 | - | 4.93 | 126,599 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,738 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,953 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,345 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,728 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,260 |
