| Countries with Glaciers | 0 | - | 4.97 | 104,738 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,563 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,723 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,303 |
| Northernmost Countries Without Glaciers | 0 | - | 4.61 | 36,084 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,010,011 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,470 |
| Landlocked Countries | 0 | - | 4.99 | 414,751 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,725,949 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,057 |
| Himalayan Countries | 0 | - | 4.95 | 135,754 |
| Andean Countries | 0 | - | 4.94 | 83,051 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,394 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,473 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,092 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,756 |
| Danube Countries | 0 | - | 4.97 | 71,197 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,923 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,654 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,737 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,642 |
| European Landlocked Countries | 0 | - | 4.99 | 145,892 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,402 |
| Countries with the Most Species | 0 | - | 4.99 | 95,308 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,553 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,241 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,410 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,025 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,666 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,035 |
| Countries in the Alps | 0 | - | 4.86 | 117,011 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,695 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,473 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,117 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,521 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,310 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,099 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,718 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,849 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,625 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,165 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,241 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,109 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,559 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,843 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,842 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,324 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,748 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,322 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,961 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,907 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,044 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,688 |
| Largest Countries By Category | 0 | - | 4.97 | 156,933 |
| Least-Forested Countries | 0 | - | 4.53 | 64,949 |
| Countries by Countries | 0 | - | 4.96 | 62,388 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,569 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,002 |
| Tropical Rainforest Countries | 0 | - | 4.68 | 81,785 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,363 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,878 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,489 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,159 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,325 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,529 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,422 |
| Island Countries | 0 | - | 4.99 | 708,059 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,365,372 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,971 |
| Northernmost Countries | 0 | - | 4.99 | 358,363 |
| Countries of South America | 0 | - | 5.00 | 916,794 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,884 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,852,249 |
| "Land" Countries | 0 | - | 4.98 | 333,946 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.62 | 37,707 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,995 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,122 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,736 |
| Countries with Megacities | 0 | - | 4.99 | 247,831 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,606 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,255 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,986 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,204 |
| Countries by Official Language | 0 | - | 4.95 | 193,016 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,462 |
| Countries in their Native Language | 0 | - | 4.99 | 196,868 |
| Independence from Whom | 0 | - | 4.99 | 209,988 |
| Subdivisions by Country | 0 | - | 4.86 | 50,118 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,950 |
| Megadiverse Countries | 0 | - | 4.97 | 133,996 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,030 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,974 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,486 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,889 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,801 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,080 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,243 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,289 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,268 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,771 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,779 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,475 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,576 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,562 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,756 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,086 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,930 |
| World Map Quiz | 0 | - | 4.81 | 63,700 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,312 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,467 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,643 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,420 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,149 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,135 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,047 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,234 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,438 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,032 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,477 |
| Widest Countries East to West | 0 | - | 4.92 | 128,966 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,265 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,381 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,621 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,801 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,743 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,167 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 75,047 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,119 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,629 |
| Countries with Double Letters | 0 | - | 4.97 | 93,599 |
| Countries that End in N | 0 | - | 4.94 | 157,075 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,920 |
| Countries with Six Letters | 0 | - | 4.93 | 210,589 |
| Countries with W | 0 | - | 4.97 | 158,367 |
| Countries with Z | 0 | - | 4.98 | 288,128 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,696 |
| Countries That End in U | 0 | - | 4.95 | 119,590 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,798 |
| Countries that End in O | 0 | - | 4.92 | 158,624 |
| Countries that End in R | 0 | - | 4.87 | 118,346 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,910 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,321 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,482 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,604 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,147 |
| Countries That End in Y | 0 | - | 4.90 | 185,262 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,545 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,835 |
| Countries that End in I | 0 | - | 4.94 | 134,511 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,380 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,268 |
| Countries That End in NIA | 0 | - | 4.92 | 109,083 |
| Countries That End in BIA | 0 | - | 4.92 | 147,815 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,197 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,593 |
| Countries That End in RIA | 0 | - | 4.93 | 126,161 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,130 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,578 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,628 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,990 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,490 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,992 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,231 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,751 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,631 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,868 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,273 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,937 |
| Countries that End in L | 0 | - | 4.94 | 156,125 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,838 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,015 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,594 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,401 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,491 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,787 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,529 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 141,032 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,579 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,937 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,862 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,784 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,227 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,449 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,390 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,805,482 |
| One Border Countries | 0 | - | 4.98 | 465,216 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,593,866 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,344 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 44,963 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,090 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,361 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,087 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,586 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,870 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,451 |
| Majority Muslim Countries | 0 | - | 4.98 | 370,132 |
| Countries by National Anthem | 0 | - | 4.92 | 71,059 |
| NATO Countries | 0 | - | 4.98 | 276,862 |
| EU Countries Quiz | 0 | - | 4.99 | 270,607 |
| Recently Independent Countries | 0 | - | 4.98 | 158,123 |
