| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,608,112 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,227,731 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,095,912 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,415 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,645 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,409 |
| Anagram Chain - Countries | 0 | - | 4.98 | 115,961 |
| Countries with Four Letters | 0 | - | 4.99 | 420,899 |
| Countries but all Vowels are Changed to O | 0 | - | 4.93 | 68,877 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,995 |
| Landlocked Countries | 0 | - | 4.99 | 417,437 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 199,196 |
| Top Five Countries By Category #3 | 0 | - | 4.81 | 170,465 |
| Country Chain | 0 | - | 4.96 | 216,572 |
| Countries by Emojis | 0 | - | 4.99 | 238,134 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,532 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,121 |
| Islands by Country #1 | 0 | - | 4.87 | 174,925 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,240 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,585 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,554 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,746,936 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 215,416 |
| Name a Valid Country #3 | 0 | - | 4.99 | 262,035 |
| Name a Valid Country #1 | 0 | - | 4.99 | 287,670 |
| Name a Valid Country #2 | 0 | - | 4.98 | 249,491 |
| Name a Valid Country #4 | 0 | - | 4.97 | 254,428 |
| Name a Valid Country #5 | 0 | - | 4.99 | 205,639 |
| Name a Valid Country #6 | 0 | - | 4.94 | 128,579 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 717,253 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,291 |
| Himalayan Countries | 0 | - | 4.95 | 136,815 |
| Andean Countries | 0 | - | 4.95 | 83,633 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,886 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,211 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,560 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,155 |
| Danube Countries | 0 | - | 4.97 | 71,506 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,337 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,923 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,343 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,379 |
| European Landlocked Countries | 0 | - | 4.99 | 146,218 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,910 |
| Countries with the Most Species | 0 | - | 4.99 | 102,507 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,035 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,363 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,541 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,212 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,872 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,251 |
| Countries in the Alps | 0 | - | 4.86 | 117,459 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,980 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,080 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,321 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,828 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,926 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,335 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,095 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,057 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,874 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,414 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,412 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,253 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,805 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,073 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,082 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,885 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,955 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,482 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,328 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,510 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,824 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,887 |
| Largest Countries By Category | 0 | - | 4.97 | 157,395 |
| Countries by Countries | 0 | - | 4.96 | 62,690 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,983 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,114 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,433 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,178 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,737 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,187 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,339 |
| Island Countries | 0 | - | 4.99 | 709,175 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,407 |
| Northernmost Countries | 0 | - | 4.99 | 359,822 |
| Countries of South America | 0 | - | 5.00 | 920,839 |
| Countries of Oceania | 0 | - | 5.00 | 1,048,573 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,861,606 |
| "Land" Countries | 0 | - | 4.98 | 335,319 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,197 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,799 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,812 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,545 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,190 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,372,481 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,310 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,975 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 235,007 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 224,103 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 191,440 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,287 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 138,547 |
| Fictional Characters by Country #1 | 0 | - | 4.31 | 59,540 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,892 |
| Random Countries by Borders | 0 | - | 4.99 | 82,126 |
| Random Name a Valid Country | 0 | - | 4.99 | 204,346 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,550 |
| Countries with Megacities | 0 | - | 4.99 | 249,532 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,400 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,710 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,735 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,676 |
| Countries by Official Language | 0 | - | 4.95 | 194,325 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,147 |
| Countries in their Native Language | 0 | - | 4.99 | 197,916 |
| Independence from Whom | 0 | - | 4.99 | 211,020 |
| Subdivisions by Country | 0 | - | 4.86 | 50,235 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,486 |
| Megadiverse Countries | 0 | - | 4.96 | 134,643 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,059 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,123 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,678 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,971 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,537 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,285 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,736 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,659 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,417 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,824 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,530 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,632 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,733 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,692 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,912 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,254 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,794 |
| World Map Quiz | 0 | - | 4.81 | 64,253 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 136,741 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,821 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,825 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,224 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,764 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,493 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,951 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,376 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,545 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,703 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,192 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,175 |
| Widest Countries East to West | 0 | - | 4.92 | 129,245 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,345 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,769 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,953 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,246 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,064 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,435 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,166 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,696 |
| Countries with Double Letters | 0 | - | 4.97 | 94,714 |
| Countries that End in N | 0 | - | 4.95 | 169,011 |
| Countries with Five Letters | 0 | - | 4.96 | 275,363 |
| Countries with Six Letters | 0 | - | 4.94 | 212,000 |
| Countries with W | 0 | - | 4.97 | 159,237 |
| Countries with Z | 0 | - | 4.98 | 289,374 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,437 |
| Countries That End in U | 0 | - | 4.95 | 120,250 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,457 |
| Countries that End in O | 0 | - | 4.92 | 159,069 |
| Countries that End in R | 0 | - | 4.87 | 118,635 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,405 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,027 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,918 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,942 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,527 |
| Countries That End in Y | 0 | - | 4.90 | 185,545 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,015 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,236 |
| Countries that End in I | 0 | - | 4.94 | 134,754 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,839 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,479 |
| Countries That End in NIA | 0 | - | 4.92 | 109,394 |
| Countries That End in BIA | 0 | - | 4.93 | 148,679 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,545 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,901 |
| Countries That End in RIA | 0 | - | 4.93 | 126,418 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,482 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,310 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,004 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,325 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,955 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,227 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,554 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,084 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,961 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,107 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,653 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,342 |
| Countries that End in L | 0 | - | 4.94 | 156,408 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,395 |
