| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,661,784 |
| Solve the Secret Country #1 | 0 | - | 4.93 | 168,841 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 120,989 |
| Anagram Chain - Countries | 0 | - | 4.98 | 118,001 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 71,427 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 66,291 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,996,250 |
| Landlocked Countries | 0 | - | 4.99 | 427,590 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,129,108 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 454,246 |
| Countries with Four Letters | 0 | - | 4.99 | 426,631 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,814,784 |
| Sahara Desert Countries | 0 | - | 4.98 | 167,077 |
| Himalayan Countries | 0 | - | 4.93 | 140,963 |
| Andean Countries | 0 | - | 4.94 | 85,869 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,982 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,592 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,528 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,740 |
| Danube Countries | 0 | - | 4.97 | 72,596 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,851 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 87,005 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,506 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,980 |
| European Landlocked Countries | 0 | - | 4.99 | 147,809 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,587 |
| Countries with the Most Species | 0 | - | 4.99 | 103,664 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,690 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,827 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,967 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 202,384 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,947 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 184,743 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,700 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,159 |
| Countries in the Alps | 0 | - | 4.87 | 119,027 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,090 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,226 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,086 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,212 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,178 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,418 |
| Country Chain | 0 | - | 4.96 | 218,715 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,630 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,026 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,529 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,344 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,971 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,848 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,698 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,952 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,051 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,221 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,762 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,695 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,880 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,485 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,602 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,635 |
| Largest Countries By Category | 0 | - | 4.97 | 159,153 |
| Countries by Emojis | 0 | - | 4.99 | 242,952 |
| Countries by Countries | 0 | - | 4.97 | 63,839 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,747 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 324,514 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,498 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,456 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,716 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,270 |
| Islands by Country #1 | 0 | - | 4.90 | 176,738 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,374 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,693 |
| Regions of Countries #3 | 0 | - | 4.85 | 91,500 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 219,634 |
| Name a Valid Country #3 | 0 | - | 4.99 | 266,487 |
| Name a Valid Country #1 | 0 | - | 4.99 | 296,357 |
| Name a Valid Country #2 | 0 | - | 4.98 | 254,717 |
| Name a Valid Country #4 | 0 | - | 4.97 | 259,712 |
| Name a Valid Country #5 | 0 | - | 4.99 | 210,524 |
| Name a Valid Country #6 | 0 | - | 4.95 | 145,754 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 746,481 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,920 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,137 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,562 |
| Island Countries | 0 | - | 4.99 | 713,135 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,570 |
| Northernmost Countries | 0 | - | 4.99 | 364,769 |
| Countries of South America | 0 | - | 5.00 | 934,757 |
| Countries of Oceania | 0 | - | 5.00 | 1,066,043 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,894,204 |
| "Land" Countries | 0 | - | 4.98 | 339,137 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,942 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,853 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,803 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 111,233 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 90,052 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,398,106 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,749 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,924 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 238,718 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 227,535 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 194,115 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 124,407 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,658 |
| Random Countries by Borders | 0 | - | 4.99 | 83,229 |
| Random Name a Valid Country | 0 | - | 4.99 | 206,969 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,635 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,609 |
| Countries with Megacities | 0 | - | 4.99 | 268,085 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,258 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,393 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,592 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,492 |
| Countries by Official Language | 0 | - | 4.95 | 196,301 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 298,048 |
| Countries in their Native Language | 0 | - | 4.99 | 200,016 |
| Independence from Whom | 0 | - | 4.99 | 213,492 |
| Subdivisions by Country | 0 | - | 4.87 | 50,680 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,732 |
| Megadiverse Countries | 0 | - | 4.96 | 149,639 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,198 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,592 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,836 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,270 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,521 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,946 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,355 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,646 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,196 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,295 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,860 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,512 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,525 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,241 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,662 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,999 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,846 |
| World Map Quiz | 0 | - | 4.81 | 65,969 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 160,090 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,851 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,597 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,276 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,747 |
| Countries With the Most Languages | 0 | - | 4.90 | 204,023 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,600 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,711 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,893 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,782 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,999 |
| Widest Countries East to West | 0 | - | 4.92 | 130,894 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,637 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,455 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,582 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,184 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,324 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,642 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,547 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,933 |
| Countries with Double Letters | 0 | - | 4.96 | 97,740 |
| Countries that End in N | 0 | - | 4.95 | 172,742 |
| Countries with Five Letters | 0 | - | 4.96 | 284,788 |
| Countries with Six Letters | 0 | - | 4.94 | 215,075 |
| Countries with W | 0 | - | 4.96 | 161,399 |
| Countries with Z | 0 | - | 4.98 | 293,141 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,767 |
| Countries That End in U | 0 | - | 4.95 | 121,445 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,520 |
| Countries that End in O | 0 | - | 4.92 | 160,415 |
| Countries that End in R | 0 | - | 4.87 | 119,308 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,083 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,234 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 187,373 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,277 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,947 |
| Countries That End in Y | 0 | - | 4.91 | 186,197 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,480 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,467 |
| Countries that End in I | 0 | - | 4.94 | 135,455 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,421 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,173 |
| Countries That End in NIA | 0 | - | 4.92 | 110,188 |
| Countries That End in BIA | 0 | - | 4.93 | 149,781 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,988 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,934 |
| Countries That End in RIA | 0 | - | 4.93 | 127,189 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,579 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 229,042 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,443 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,909 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,469 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,945 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,505 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,618 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 126,099 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,760 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,954 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,669 |
| Countries that End in L | 0 | - | 4.94 | 157,283 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,750 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,389 |
| City to Country Quiz #1 | 0 | - | 4.96 | 157,911 |
