| Countries by Three Words #2 | 0 | - | 4.95 | 165,288 |
| Countries by Three Words #1 | 0 | - | 4.94 | 249,183 |
| European Countries by Clue | 0 | - | 4.92 | 176,748 |
| Countries by a Single Clue #5 | 0 | - | 4.90 | 95,546 |
| Countries of the World Quiz | 0 | - | 5.00 | 43,764,284 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 375,388 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,344,787 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,420,571 |
| Sahara Desert Countries | 0 | - | 4.98 | 142,208 |
| Himalayan Countries | 0 | - | 4.95 | 119,201 |
| Andean Countries | 0 | - | 4.92 | 66,844 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 55,371 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 110,796 |
| Coffee Producing Countries | 0 | - | 4.81 | 58,427 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 58,078 |
| Danube Countries | 0 | - | 4.97 | 60,021 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 95,748 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 81,063 |
| Countries with the Best Passports | 0 | - | 4.81 | 78,658 |
| Countries with the Worst Passports | 0 | - | 4.92 | 61,535 |
| Countries with the Most Immigrants | 0 | - | 4.89 | 134,969 |
| European Landlocked Countries | 0 | - | 4.99 | 140,204 |
| Partially Recognized Countries | 0 | - | 4.98 | 96,624 |
| Countries with the Most Species | 0 | - | 4.99 | 91,808 |
| Countries 197 to 205 | 0 | - | 4.87 | 62,076 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 46,355 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 45,476 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 51,872 |
| Countries that Use the Peso | 0 | - | 4.84 | 49,012 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 69,430 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 52,890 |
| Countries in the Alps | 0 | - | 4.86 | 109,236 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 89,880 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 96,139 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 74,786 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 82,694 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 109,717 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 91,226 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 94,162 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 49,180 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 47,470 |
| Countries with the Most Container Port Traffic | 0 | - | 4.91 | 58,107 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 72,219 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 50,794 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 38,672 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 99,491 |
| Arctic Ocean Countries | 0 | - | 4.94 | 75,192 |
| Countries with the Most Grassland | 0 | - | 4.93 | 72,843 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 107,352 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 64,254 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 56,188 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 218,673 |
| World Countries - Blind Typing | 0 | - | 5.00 | 83,049 |
| Countries in Their Own Alphabet | 0 | - | 4.96 | 44,523 |
| Largest Countries By Category | 0 | - | 4.97 | 150,209 |
| Countries by Countries | 0 | - | 4.96 | 57,843 |
| Country Flags with the Most White | 0 | - | 4.87 | 130,434 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,395 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 46,068 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 83,025 |
| Which Country Does Not Border... | 0 | - | 4.81 | 89,803 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 357,345 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 378,453 |
| Island Countries Quiz | 0 | - | 4.99 | 686,437 |
| Biggest Countries by Area | 0 | - | 5.00 | 981,515 |
| Northernmost Countries | 0 | - | 4.99 | 340,481 |
| Countries of South America | 0 | - | 5.00 | 851,432 |
| Countries of Oceania | 0 | - | 5.00 | 962,497 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,704,177 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,232,280 |
| The Only American Country ... | 0 | - | 4.93 | 114,920 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 71,732 |
| Bordering Countries by Clue #1 | 0 | - | 4.96 | 71,409 |
| Bordering Countries by Clue #2 | 0 | - | 4.94 | 72,877 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 102,015 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 70,605 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 156,224 |
| Countries with Megacities | 0 | - | 4.99 | 215,310 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 184,865 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 105,263 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 122,518 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 72,053 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 267,055 |
| Countries by Official Language | 0 | - | 4.95 | 182,423 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 279,770 |
| Countries in their Native Language | 0 | - | 4.98 | 187,351 |
| Independence from Whom | 0 | - | 4.99 | 197,804 |
| Subdivisions by Country | 0 | - | 4.86 | 48,222 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 122,140 |
| Megadiverse Countries | 0 | - | 4.96 | 129,960 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 120,477 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 110,246 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 49,130 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 154,200 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 58,914 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 85,121 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 148,433 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 79,659 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,136 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 65,287 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 104,219 |
| Countries Furthest from the United States | 0 | - | 4.95 | 85,415 |
| Countries with the Highest HDI | 0 | - | 4.95 | 133,764 |
| Straight Shot to the Arctic Circle | 0 | - | 4.89 | 71,656 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 68,031 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 96,084 |
| World Map Quiz | 0 | - | 4.88 | 56,510 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 131,855 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 85,940 |
| Countries by Founding Story | 0 | - | 4.94 | 71,913 |
| Countries by Road Signs | 0 | - | 4.98 | 48,895 |
| Southernmost Countries of the World | 0 | - | 4.99 | 216,968 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 97,735 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 115,222 |
| Countries With the Most Languages | 0 | - | 4.88 | 187,269 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 91,932 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 87,723 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 92,414 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 57,805 |
| Tallest Countries North to South | 0 | - | 4.85 | 114,949 |
| Widest Countries East to West | 0 | - | 4.92 | 123,847 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,994 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 164,426 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,125 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 89,698 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 124,319 |
| Countries with the Most Desert | 0 | - | 4.93 | 122,659 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 67,829 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 33,366 |
| Countries with Double Letters | 0 | - | 4.96 | 80,433 |
| Countries that End in N | 0 | - | 4.93 | 144,544 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 243,534 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 198,770 |
| Countries with W | 0 | - | 4.97 | 132,130 |
| Countries with Z | 0 | - | 4.98 | 273,960 |
| Countries with Letters Missing | 0 | - | 4.97 | 175,386 |
| Countries That End in U | 0 | - | 4.95 | 113,450 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 98,973 |
| Countries that End in O | 0 | - | 4.92 | 153,085 |
| Countries that End in R | 0 | - | 4.84 | 99,502 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 151,491 |
| Countries Ending in "IA" | 0 | - | 4.99 | 196,582 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 162,446 |
| Countries by Last Two Letters | 0 | - | 4.89 | 121,190 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 134,705 |
| Countries That End in Y | 0 | - | 4.91 | 181,271 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 187,944 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 126,689 |
| Countries that End in I | 0 | - | 4.92 | 117,067 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 157,350 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 91,762 |
| Countries That End in NIA | 0 | - | 4.92 | 104,614 |
| Countries That End in BIA | 0 | - | 4.92 | 141,688 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 160,462 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 114,087 |
| Countries That End in RIA | 0 | - | 4.89 | 104,944 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 105,191 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 213,327 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 126,227 |
| Divided Country Name Puzzle #3 | 0 | - | 4.90 | 117,951 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 83,952 |
| Countries With One Word and Three A's | 0 | - | 4.94 | 47,979 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 97,040 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 119,192 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 45,816 |
| Countries with the Word "And" | 0 | - | 4.98 | 89,051 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 46,825 |
| Countries that End in L | 0 | - | 4.94 | 151,113 |
| "Land" Countries | 0 | - | 4.98 | 298,585 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 195,951 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 83,762 |
| City to Country Quiz #1 | 0 | - | 4.95 | 138,475 |
| City to Country Quiz #3 | 0 | - | 4.87 | 103,180 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 74,921 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 217,914 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 191,421 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 121,549 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 139,581 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 214,785 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 146,257 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 68,446 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 105,439 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 84,601 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 59,344 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,371,668 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 362,421 |
| One Border Countries | 0 | - | 4.98 | 441,481 |
| Countries by Wikipedia Descriptions #1 | 0 | - | 4.93 | 63,097 |
| Countries by Wikipedia Descriptions #4 | 0 | - | 4.89 | 55,052 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,601,198 |
| Countries by Three Words #3 | 0 | - | 4.78 | 104,054 |
| Countries by Three Words #4 | 0 | - | 4.42 | 78,266 |
| Countries by a Single Clue #1 | 0 | - | 4.74 | 97,484 |
| Countries by a Single Clue #2 | 0 | - | 4.50 | 91,817 |
| Countries by a Single Clue #3 | 0 | - | 4.62 | 84,019 |
| Countries by a Single Clue #4 | 0 | - | 4.49 | 74,573 |
| Countries by a Single Clue #6 | 0 | - | 4.47 | 84,223 |
| Countries by a Single Clue #8 | 0 | - | 4.43 | 92,144 |
| Countries by a Single Clue #10 | 0 | - | 4.57 | 65,918 |
| Countries by a Single Clue #11 | 0 | - | 4.57 | 74,293 |
