| Africa Geography Quiz #1 | 0 | - | 4.92 | 48,108 |
| Countries of the World Quiz | 0 | - | 5.00 | 44,937,979 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,038,189 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 433,872 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 152,958 |
| Solve the Secret Country #2 | 0 | - | 4.88 | 107,378 |
| Anagram Chain - Countries | 0 | - | 4.99 | 109,801 |
| Countries with Four Letters | 0 | - | 4.99 | 407,222 |
| Countries but all Vowels are Changed to O | 0 | - | 4.88 | 57,481 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 57,347 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 390,728 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 178,482 |
| Top Five Countries By Category #3 | 0 | - | 4.81 | 162,880 |
| Country Chain | 0 | - | 4.96 | 210,321 |
| Countries by Emojis | 0 | - | 4.99 | 224,796 |
| Countries With One Word And Two O's | 0 | - | 4.96 | 52,359 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,454,341 |
| Islands by Country #1 | 0 | - | 4.87 | 170,896 |
| Regions of Countries #1 | 0 | - | 4.97 | 156,371 |
| Regions of Countries #2 | 0 | - | 4.95 | 120,551 |
| Regions of Countries #3 | 0 | - | 4.84 | 88,362 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,530,375 |
| Name a Valid Country #3 | 0 | - | 4.99 | 229,578 |
| Name a Valid Country #1 | 0 | - | 4.99 | 262,484 |
| Name a Valid Country #2 | 0 | - | 4.98 | 217,530 |
| Name a Valid Country #4 | 0 | - | 4.97 | 224,971 |
| Name a Valid Country #5 | 0 | - | 4.99 | 178,831 |
| Name a Valid Country #6 | 0 | - | 4.95 | 116,730 |
| Sahara Desert Countries | 0 | - | 4.97 | 149,575 |
| Himalayan Countries | 0 | - | 4.94 | 125,695 |
| Andean Countries | 0 | - | 4.93 | 70,762 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 58,266 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 115,819 |
| Coffee Producing Countries | 0 | - | 4.83 | 61,625 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 60,721 |
| Danube Countries | 0 | - | 4.97 | 61,789 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 98,161 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 82,796 |
| Countries with the Worst Passports | 0 | - | 4.92 | 75,606 |
| Countries with the Most Immigrants | 0 | - | 4.89 | 141,239 |
| European Landlocked Countries | 0 | - | 4.99 | 142,181 |
| Partially Recognized Countries | 0 | - | 4.98 | 100,019 |
| Countries with the Most Species | 0 | - | 4.99 | 93,215 |
| Countries 197 to 205 | 0 | - | 4.88 | 64,944 |
| Tropic of Cancer Countries | 0 | - | 4.95 | 47,121 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 46,200 |
| Countries that Use the Peso | 0 | - | 4.89 | 57,091 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 70,611 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 54,536 |
| Countries in the Alps | 0 | - | 4.86 | 112,117 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 91,679 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 99,647 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 76,100 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 89,054 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 111,810 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 92,699 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 96,239 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 50,558 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 48,531 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 59,586 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 51,765 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 39,570 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 100,887 |
| Arctic Ocean Countries | 0 | - | 4.94 | 76,544 |
| Countries with the Most Grassland | 0 | - | 4.93 | 74,387 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 111,132 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 65,517 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 57,423 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.94 | 40,714 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 226,694 |
| World Countries - Blind Typing | 0 | - | 5.00 | 97,809 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 45,759 |
| Largest Countries By Category | 0 | - | 4.97 | 152,618 |
| Countries by Countries | 0 | - | 4.96 | 59,286 |
| Country Flags with the Most White | 0 | - | 4.85 | 133,366 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,978 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 84,913 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 363,172 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 386,960 |
| Island Countries Quiz | 0 | - | 4.99 | 695,642 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,006,894 |
| Northernmost Countries | 0 | - | 4.99 | 345,180 |
| Countries of South America | 0 | - | 5.00 | 875,426 |
| Countries of Oceania | 0 | - | 5.00 | 991,336 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,758,060 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 174,705 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.92 | 85,596 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 107,228 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 108,316 |
| Biggest Countries with No McDonald's | 0 | - | 4.85 | 86,484 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,287,580 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 43,744 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 93,414 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 306,399 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 224,917 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 215,037 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 183,057 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.96 | 116,414 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 100,211 |
| Random Countries by Borders | 0 | - | 4.99 | 78,954 |
| Random Name a Valid Country | 0 | - | 4.99 | 196,339 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 162,770 |
| Countries with Megacities | 0 | - | 4.99 | 222,374 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 189,627 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 107,710 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 128,944 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 75,117 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 302,345 |
| Countries by Official Language | 0 | - | 4.95 | 186,160 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.90 | 284,799 |
| Countries in their Native Language | 0 | - | 4.99 | 190,501 |
| Independence from Whom | 0 | - | 4.99 | 202,662 |
| Subdivisions by Country | 0 | - | 4.85 | 48,970 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 125,763 |
| Megadiverse Countries | 0 | - | 4.97 | 131,306 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 124,121 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 53,413 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 122,730 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 73,538 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.86 | 49,591 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 156,953 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 60,282 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 88,746 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 150,187 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 81,089 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,645 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 69,731 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 105,331 |
| Countries Furthest from the United States | 0 | - | 4.93 | 86,523 |
| Countries with the Highest HDI | 0 | - | 4.95 | 135,006 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 72,730 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 69,218 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 100,767 |
| Countries with Shortest Maximum Distances to the Ocean | 0 | - | 4.12 | 30,385 |
| World Map Quiz | 0 | - | 4.87 | 59,163 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 122,734 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 139,429 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 87,834 |
| Southernmost Countries of the World | 0 | - | 4.99 | 220,430 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 100,014 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 117,843 |
| Countries With the Most Languages | 0 | - | 4.89 | 192,059 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.94 | 97,803 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 89,653 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 94,844 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 59,029 |
| Tallest Countries North to South | 0 | - | 4.84 | 116,653 |
| Widest Countries East to West | 0 | - | 4.92 | 125,785 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,442 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 181,626 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 96,002 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 91,186 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 126,311 |
| Countries with the Most Desert | 0 | - | 4.93 | 124,155 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 68,300 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 33,835 |
| Countries with Double Letters | 0 | - | 4.97 | 86,048 |
| Countries that End in N | 0 | - | 4.94 | 149,534 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 250,060 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 203,643 |
| Countries with W | 0 | - | 4.97 | 152,675 |
| Countries with Z | 0 | - | 4.98 | 279,628 |
| Countries with Letters Missing | 0 | - | 4.97 | 179,230 |
| Countries That End in U | 0 | - | 4.95 | 116,247 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 103,245 |
| Countries that End in O | 0 | - | 4.92 | 155,826 |
| Countries that End in R | 0 | - | 4.84 | 100,878 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 152,769 |
| Countries Ending in "IA" | 0 | - | 4.99 | 200,642 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 165,473 |
| Countries by Last Two Letters | 0 | - | 4.88 | 131,635 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 137,525 |
| Countries That End in Y | 0 | - | 4.91 | 182,947 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 191,758 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 147,905 |
| Countries that End in I | 0 | - | 4.92 | 118,149 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 176,886 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 93,138 |
| Countries That End in NIA | 0 | - | 4.92 | 106,799 |
| Countries That End in BIA | 0 | - | 4.92 | 144,802 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 162,478 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 115,845 |
| Countries That End in RIA | 0 | - | 4.92 | 122,911 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 107,126 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 218,179 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 128,750 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 120,713 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 86,607 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 72,037 |
| Countries With One Word and Three A's | 0 | - | 4.94 | 49,627 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 99,274 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 121,230 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 47,060 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 49,233 |
| Countries that End in L | 0 | - | 4.94 | 153,060 |
| "Land" Countries | 0 | - | 4.98 | 301,364 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 199,087 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,273 |
| City to Country Quiz #1 | 0 | - | 4.96 | 151,468 |
| City to Country Quiz #3 | 0 | - | 4.87 | 105,517 |
