| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 717,119 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,607,433 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,095,572 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,352 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,591 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,350 |
| Anagram Chain - Countries | 0 | - | 4.98 | 115,937 |
| Countries with Four Letters | 0 | - | 4.99 | 420,799 |
| Countries but all Vowels are Changed to O | 0 | - | 4.93 | 68,846 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,969 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,216,647 |
| Landlocked Countries | 0 | - | 4.99 | 417,315 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,049 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 199,166 |
| Top Five Countries By Category #3 | 0 | - | 4.81 | 170,441 |
| Country Chain | 0 | - | 4.96 | 216,546 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,681 |
| Countries by Emojis | 0 | - | 4.99 | 238,055 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,519 |
| Islands by Country #1 | 0 | - | 4.87 | 174,906 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,223 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,576 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,543 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,745,709 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 215,365 |
| Name a Valid Country #3 | 0 | - | 4.99 | 261,960 |
| Name a Valid Country #1 | 0 | - | 4.99 | 287,527 |
| Name a Valid Country #2 | 0 | - | 4.98 | 249,402 |
| Name a Valid Country #4 | 0 | - | 4.97 | 254,344 |
| Name a Valid Country #5 | 0 | - | 4.99 | 205,501 |
| Name a Valid Country #6 | 0 | - | 4.94 | 128,535 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,236 |
| Himalayan Countries | 0 | - | 4.95 | 136,778 |
| Andean Countries | 0 | - | 4.95 | 83,612 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,872 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,173 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,541 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,133 |
| Danube Countries | 0 | - | 4.97 | 71,488 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,317 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,910 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,314 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,309 |
| European Landlocked Countries | 0 | - | 4.99 | 146,200 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,887 |
| Countries with the Most Species | 0 | - | 4.99 | 102,422 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,015 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,357 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,537 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,037 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,777 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,205 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,859 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,238 |
| Countries in the Alps | 0 | - | 4.86 | 117,440 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,969 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,051 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,306 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,811 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,908 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,325 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,077 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,048 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,865 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,397 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,401 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,243 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,791 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,055 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,068 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,854 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,943 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,794 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,472 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,311 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,406 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,764 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,879 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,535 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,174 |
| Largest Countries By Category | 0 | - | 4.97 | 157,366 |
| Countries by Countries | 0 | - | 4.96 | 62,677 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,291 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,968 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 234,957 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 224,051 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 191,395 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,961 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,253 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,109 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,153 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,884 |
| Random Countries by Borders | 0 | - | 4.99 | 82,098 |
| Random Name a Valid Country | 0 | - | 4.99 | 204,310 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,611 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,122 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,263 |
| Island Countries | 0 | - | 4.99 | 709,111 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,372,161 |
| 20 Random Country Flags | 0 | - | 4.99 | 608,836 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,211 |
| Northernmost Countries | 0 | - | 4.99 | 359,747 |
| Countries of South America | 0 | - | 5.00 | 920,627 |
| Countries of Oceania | 0 | - | 5.00 | 1,048,262 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,861,092 |
| "Land" Countries | 0 | - | 4.98 | 335,233 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 381,054 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 136,675 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,810 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,999 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,128 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,509 |
| Countries with Megacities | 0 | - | 4.99 | 249,457 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,355 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,680 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,688 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,647 |
| Countries by Official Language | 0 | - | 4.95 | 194,265 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,084 |
| Countries in their Native Language | 0 | - | 4.99 | 197,857 |
| Independence from Whom | 0 | - | 4.99 | 210,988 |
| Subdivisions by Country | 0 | - | 4.86 | 50,227 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,457 |
| Megadiverse Countries | 0 | - | 4.96 | 134,611 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,017 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,109 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,666 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,966 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,517 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,278 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,712 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,609 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,411 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,822 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,487 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,624 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,719 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,686 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,895 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,252 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,760 |
| World Map Quiz | 0 | - | 4.81 | 64,236 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,746 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,781 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,193 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,746 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,480 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,907 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,355 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,525 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,692 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,186 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,158 |
| Widest Countries East to West | 0 | - | 4.92 | 129,230 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,343 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,745 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,947 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,041 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,052 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,423 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,162 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,691 |
| Countries with Double Letters | 0 | - | 4.97 | 94,635 |
| Countries that End in N | 0 | - | 4.95 | 168,788 |
| Countries with Five Letters | 0 | - | 4.96 | 273,995 |
| Countries with Six Letters | 0 | - | 4.94 | 211,912 |
| Countries with W | 0 | - | 4.97 | 159,191 |
| Countries with Z | 0 | - | 4.98 | 289,304 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,391 |
| Countries That End in U | 0 | - | 4.95 | 120,223 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,413 |
| Countries that End in O | 0 | - | 4.92 | 159,042 |
| Countries that End in R | 0 | - | 4.87 | 118,618 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,392 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,986 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,891 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,920 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,504 |
| Countries That End in Y | 0 | - | 4.90 | 185,526 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,983 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,202 |
| Countries that End in I | 0 | - | 4.94 | 134,736 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,816 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,466 |
| Countries That End in NIA | 0 | - | 4.92 | 109,375 |
| Countries That End in BIA | 0 | - | 4.93 | 148,658 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,523 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,878 |
| Countries That End in RIA | 0 | - | 4.93 | 126,406 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,450 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,259 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,976 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,300 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,932 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,209 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,533 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,056 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,935 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,093 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,636 |
