| Islands by Country #1 | 0 | - | 4.88 | 175,199 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,460 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,798 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,677 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,033 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,618,947 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,393,126 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,100,014 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 450,126 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 165,448 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 118,106 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,364 |
| Countries with Four Letters | 0 | - | 4.99 | 422,003 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,417 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,449 |
| Landlocked Countries | 0 | - | 4.99 | 419,683 |
| Musical Acts by Country #1 | 0 | - | 4.45 | 79,077 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 200,278 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 180,026 |
| Country Chain | 0 | - | 4.96 | 216,970 |
| Countries by Emojis | 0 | - | 4.99 | 239,351 |
| African Island Countries | 0 | - | 4.96 | 101,532 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 55,835 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 320,273 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,761,841 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 216,378 |
| Name a Valid Country #3 | 0 | - | 4.99 | 262,775 |
| Name a Valid Country #1 | 0 | - | 4.99 | 289,301 |
| Name a Valid Country #2 | 0 | - | 4.98 | 250,407 |
| Name a Valid Country #4 | 0 | - | 4.97 | 255,305 |
| Name a Valid Country #5 | 0 | - | 4.99 | 206,686 |
| Name a Valid Country #6 | 0 | - | 4.94 | 129,198 |
| Countries by Languages in 90 Seconds | 0 | - | 4.94 | 719,923 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,310 |
| Himalayan Countries | 0 | - | 4.95 | 137,745 |
| Andean Countries | 0 | - | 4.95 | 84,088 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,326 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,862 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,959 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,439 |
| Danube Countries | 0 | - | 4.97 | 71,737 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,662 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,137 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,787 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,869 |
| European Landlocked Countries | 0 | - | 4.99 | 146,861 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,235 |
| Countries with the Most Species | 0 | - | 4.99 | 103,000 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,392 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,457 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,618 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,369 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,042 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,438 |
| Countries in the Alps | 0 | - | 4.87 | 117,812 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,215 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,531 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,468 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,269 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,198 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,779 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,370 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,261 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,020 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,624 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,524 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,369 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,992 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,257 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,274 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,344 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,116 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,622 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,651 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,722 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,435 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,041 |
| Largest Countries By Category | 0 | - | 4.97 | 157,783 |
| Countries by Countries | 0 | - | 4.96 | 62,923 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,324 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,180 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,408 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,645 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,814 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,699 |
| Island Countries | 0 | - | 4.99 | 710,077 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,907 |
| Northernmost Countries | 0 | - | 4.99 | 360,844 |
| Foods by Country of Origin #1 | 0 | - | 4.40 | 336,478 |
| Mountains by Country | 0 | - | 4.56 | 81,756 |
| Countries of South America | 0 | - | 5.00 | 923,989 |
| Countries of Oceania | 0 | - | 5.00 | 1,052,613 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,869,156 |
| "Land" Countries | 0 | - | 4.98 | 335,985 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,787 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,091 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,035 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,707 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,397 |
| Richest Island Countries | 0 | - | 4.84 | 100,411 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,377,497 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,597 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,140 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 235,843 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 224,817 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,023 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,699 |
| Movies by Country Quiz #1 | 0 | - | 4.17 | 53,338 |
| Movies by Country #2 | 0 | - | 4.20 | 45,727 |
| Random Countries by Borders | 0 | - | 4.99 | 82,361 |
| Random Name a Valid Country | 0 | - | 4.99 | 204,888 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,244 |
| Countries with Megacities | 0 | - | 4.99 | 262,350 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,076 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,109 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,383 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,163 |
| Countries by Official Language | 0 | - | 4.95 | 194,791 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,740 |
| Countries in their Native Language | 0 | - | 4.99 | 198,333 |
| Independence from Whom | 0 | - | 4.99 | 211,524 |
| Subdivisions by Country | 0 | - | 4.86 | 50,320 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,847 |
| Megadiverse Countries | 0 | - | 4.96 | 134,821 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,665 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,219 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,792 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,036 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,805 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,431 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,085 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,890 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,529 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,016 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,166 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,758 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,037 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,827 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,199 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,370 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,408 |
| World Map Quiz | 0 | - | 4.81 | 64,727 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 137,635 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,951 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,113 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,652 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,016 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,744 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,569 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,612 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,762 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,899 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,313 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,352 |
| Widest Countries East to West | 0 | - | 4.92 | 129,440 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,405 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,055 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,028 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,579 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,316 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,627 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,274 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,741 |
| Inventions by Country #1 | 0 | - | 4.47 | 55,018 |
| Airlines by Country | 0 | - | 4.52 | 135,314 |
| Countries with Double Letters | 0 | - | 4.97 | 95,237 |
| Countries that End in N | 0 | - | 4.95 | 170,233 |
| Countries with Five Letters | 0 | - | 4.96 | 280,955 |
| Countries with Six Letters | 0 | - | 4.94 | 212,673 |
| Countries with W | 0 | - | 4.97 | 159,624 |
| Countries with Z | 0 | - | 4.98 | 290,354 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,868 |
| Countries That End in U | 0 | - | 4.95 | 120,465 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,887 |
| Countries that End in O | 0 | - | 4.92 | 159,248 |
| Countries that End in R | 0 | - | 4.87 | 118,764 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,543 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,476 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,231 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,152 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,756 |
| Countries That End in Y | 0 | - | 4.91 | 185,681 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,404 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,516 |
| Countries that End in I | 0 | - | 4.94 | 134,909 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,485 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,617 |
| Countries That End in NIA | 0 | - | 4.92 | 109,567 |
| Countries That End in BIA | 0 | - | 4.93 | 148,917 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,813 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,137 |
| Countries That End in RIA | 0 | - | 4.93 | 126,587 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,725 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,917 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,333 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,710 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,238 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,381 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,737 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,312 |
