| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 42,264 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 92,581 |
| Countries of the World Quiz | 0 | - | 5.00 | 44,198,052 |
| Word Scramble - Countries | 0 | - | 4.85 | 2,017,673 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 414,331 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 148,967 |
| Solve the Secret Country #2 | 0 | - | 4.88 | 104,003 |
| Anagram Chain - Countries | 0 | - | 4.99 | 107,770 |
| Countries with Four Letters | 0 | - | 4.99 | 404,962 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 55,075 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 381,054 |
| Countries of the World - One Minute Sprint | 0 | - | 4.36 | 922,025 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 268,875 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 174,461 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 159,447 |
| Country Chain | 0 | - | 4.96 | 207,984 |
| Countries by Emojis | 0 | - | 4.99 | 221,540 |
| Countries With One Word And Two O's | 0 | - | 4.95 | 51,245 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,396,758 |
| Islands by Country #1 | 0 | - | 4.87 | 169,639 |
| Regions of Countries #1 | 0 | - | 4.96 | 155,246 |
| Regions of Countries #2 | 0 | - | 4.95 | 119,556 |
| Regions of Countries #3 | 0 | - | 4.85 | 87,608 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,462,897 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 119,478 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 101,125 |
| African Countries with the Shortest Names | 0 | - | 4.97 | 128,691 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 199,649 |
| Name a Valid Country #3 | 0 | - | 4.98 | 225,565 |
| Name a Valid Country #1 | 0 | - | 4.99 | 249,079 |
| Name a Valid Country #2 | 0 | - | 4.98 | 213,052 |
| Name a Valid Country #4 | 0 | - | 4.97 | 220,608 |
| Name a Valid Country #5 | 0 | - | 4.99 | 175,600 |
| Name a Valid Country #6 | 0 | - | 4.94 | 113,901 |
| Sahara Desert Countries | 0 | - | 4.97 | 144,834 |
| Himalayan Countries | 0 | - | 4.95 | 121,554 |
| Andean Countries | 0 | - | 4.92 | 68,291 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 56,371 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 112,528 |
| Coffee Producing Countries | 0 | - | 4.83 | 59,576 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 59,013 |
| Danube Countries | 0 | - | 4.97 | 60,681 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 96,602 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 81,714 |
| Countries with the Best Passports | 0 | - | 4.81 | 80,069 |
| Countries with the Worst Passports | 0 | - | 4.92 | 64,119 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 137,542 |
| European Landlocked Countries | 0 | - | 4.99 | 140,833 |
| Partially Recognized Countries | 0 | - | 4.98 | 97,785 |
| Countries with the Most Species | 0 | - | 4.99 | 92,232 |
| Countries 197 to 205 | 0 | - | 4.87 | 63,204 |
| Tropic of Cancer Countries | 0 | - | 4.95 | 46,624 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 45,721 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 52,428 |
| Countries that Use the Peso | 0 | - | 4.88 | 56,138 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 69,831 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 53,491 |
| Countries in the Alps | 0 | - | 4.86 | 110,179 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 90,520 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 97,411 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 75,259 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 83,538 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 110,410 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 91,785 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 94,809 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 49,695 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 47,872 |
| Countries with the Most Container Port Traffic | 0 | - | 4.91 | 58,633 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 72,618 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 51,153 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.89 | 39,012 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 100,006 |
| Arctic Ocean Countries | 0 | - | 4.94 | 75,690 |
| Countries with the Most Grassland | 0 | - | 4.93 | 73,361 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 108,591 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 64,686 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 56,596 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 221,213 |
| World Countries - Blind Typing | 0 | - | 5.00 | 94,420 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 44,974 |
| Largest Countries By Category | 0 | - | 4.97 | 151,080 |
| Countries by Countries | 0 | - | 4.96 | 58,298 |
| Country Flags with the Most White | 0 | - | 4.87 | 131,841 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,591 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 46,264 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 83,727 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 359,587 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 381,557 |
| Island Countries Quiz | 0 | - | 4.99 | 689,857 |
| Biggest Countries by Area | 0 | - | 5.00 | 987,930 |
| Northernmost Countries | 0 | - | 4.99 | 342,215 |
| Countries of South America | 0 | - | 5.00 | 860,145 |
| Countries of Oceania | 0 | - | 5.00 | 972,648 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,725,399 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 172,579 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.92 | 84,375 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 106,225 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 107,639 |
| Biggest Countries with No McDonald's | 0 | - | 4.85 | 85,552 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,252,133 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 302,379 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 221,400 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 211,860 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 180,592 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.96 | 114,655 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 99,271 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 225,558 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 124,131 |
| Random Countries by Borders | 0 | - | 4.99 | 70,919 |
| Random Name a Valid Country | 0 | - | 4.99 | 193,742 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 158,287 |
| Countries with Megacities | 0 | - | 4.99 | 217,417 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 186,325 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 106,038 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 126,331 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 72,958 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 269,269 |
| Countries by Official Language | 0 | - | 4.95 | 183,724 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 281,552 |
| Countries in their Native Language | 0 | - | 4.98 | 188,533 |
| Independence from Whom | 0 | - | 4.99 | 199,513 |
| Subdivisions by Country | 0 | - | 4.86 | 48,473 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 123,494 |
| Megadiverse Countries | 0 | - | 4.96 | 130,350 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 121,810 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 119,709 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 49,283 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 155,244 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 59,392 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 86,243 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 148,910 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 80,308 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,381 |
| Countries by Sports League Revenue | 0 | - | 4.93 | 66,974 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 104,793 |
| Countries Furthest from the United States | 0 | - | 4.95 | 85,874 |
| Countries with the Highest HDI | 0 | - | 4.95 | 134,117 |
| Straight Shot to the Arctic Circle | 0 | - | 4.89 | 72,079 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 68,515 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 97,788 |
| World Map Quiz | 0 | - | 4.88 | 57,432 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 118,575 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 134,349 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 86,587 |
| Southernmost Countries of the World | 0 | - | 4.99 | 218,301 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 98,540 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 116,418 |
| Countries With the Most Languages | 0 | - | 4.89 | 188,875 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 92,426 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 88,425 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 93,446 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 58,257 |
| Tallest Countries North to South | 0 | - | 4.85 | 115,470 |
| Widest Countries East to West | 0 | - | 4.92 | 124,600 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,172 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 174,613 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,403 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 90,170 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 125,259 |
| Countries with the Most Desert | 0 | - | 4.93 | 123,201 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 67,995 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 33,514 |
| Countries with Double Letters | 0 | - | 4.96 | 81,657 |
| Countries that End in N | 0 | - | 4.93 | 145,567 |
| Countries with Five Letters Quiz | 0 | - | 4.97 | 245,442 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 200,067 |
| Countries with W | 0 | - | 4.97 | 132,948 |
| Countries with Z | 0 | - | 4.98 | 275,347 |
| Countries with Letters Missing | 0 | - | 4.97 | 176,169 |
| Countries That End in U | 0 | - | 4.95 | 113,948 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 99,925 |
| Countries that End in O | 0 | - | 4.92 | 154,153 |
| Countries that End in R | 0 | - | 4.84 | 99,801 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 151,818 |
| Countries Ending in "IA" | 0 | - | 4.99 | 197,858 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 163,152 |
| Countries by Last Two Letters | 0 | - | 4.87 | 121,737 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 135,484 |
| Countries That End in Y | 0 | - | 4.91 | 182,027 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 189,080 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 127,337 |
| Countries that End in I | 0 | - | 4.92 | 117,363 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 158,212 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 92,132 |
| Countries That End in NIA | 0 | - | 4.92 | 105,044 |
| Countries That End in BIA | 0 | - | 4.91 | 142,638 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 161,151 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 114,645 |
| Countries That End in RIA | 0 | - | 4.90 | 105,385 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 105,784 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 215,051 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 127,095 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 118,926 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 84,739 |
| Countries With One Word and Three A's | 0 | - | 4.94 | 48,503 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 97,588 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 119,870 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 46,183 |
| Countries with the Word "And" | 0 | - | 4.98 | 89,718 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 47,597 |
