| Countries with Glaciers | 0 | - | 4.97 | 104,739 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,564 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,727 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,304 |
| Northernmost Countries Without Glaciers | 0 | - | 4.61 | 36,084 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,012,670 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,470 |
| Landlocked Countries | 0 | - | 4.99 | 414,785 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,726,201 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,065 |
| Himalayan Countries | 0 | - | 4.95 | 135,774 |
| Andean Countries | 0 | - | 4.94 | 83,063 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,401 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,485 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,100 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,760 |
| Danube Countries | 0 | - | 4.97 | 71,203 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,929 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,657 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,746 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,652 |
| European Landlocked Countries | 0 | - | 4.99 | 145,895 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,408 |
| Countries with the Most Species | 0 | - | 4.99 | 95,312 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,560 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,241 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,412 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,029 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,670 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,036 |
| Countries in the Alps | 0 | - | 4.86 | 117,021 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,697 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,480 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,118 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,527 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,315 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,101 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,719 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,856 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,632 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,166 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,242 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,110 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,564 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,846 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,843 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,331 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,753 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,325 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,965 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,926 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,053 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,691 |
| Largest Countries By Category | 0 | - | 4.97 | 156,936 |
| Least-Forested Countries | 0 | - | 4.53 | 64,950 |
| Countries by Countries | 0 | - | 4.96 | 62,390 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,572 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,003 |
| Tropical Rainforest Countries | 0 | - | 4.68 | 81,787 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,365 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,882 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,491 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,164 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,355 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,539 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,439 |
| Island Countries | 0 | - | 4.99 | 708,076 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,365,451 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,023 |
| Northernmost Countries | 0 | - | 4.99 | 358,388 |
| Countries of South America | 0 | - | 5.00 | 916,835 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,943 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,852,359 |
| "Land" Countries | 0 | - | 4.98 | 333,956 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.62 | 37,707 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,048 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,139 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,745 |
| Countries with Megacities | 0 | - | 4.99 | 247,854 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,619 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,260 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,007 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,209 |
| Countries by Official Language | 0 | - | 4.95 | 193,029 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,479 |
| Countries in their Native Language | 0 | - | 4.99 | 196,873 |
| Independence from Whom | 0 | - | 4.99 | 209,999 |
| Subdivisions by Country | 0 | - | 4.86 | 50,118 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,953 |
| Megadiverse Countries | 0 | - | 4.97 | 134,000 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,039 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,977 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,486 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,890 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,804 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,082 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,247 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,303 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,270 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,773 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,795 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,478 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,577 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,563 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,756 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,089 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,935 |
| World Map Quiz | 0 | - | 4.81 | 63,700 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,336 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,476 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,654 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,426 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,156 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,143 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,051 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,241 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,442 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,035 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,484 |
| Widest Countries East to West | 0 | - | 4.92 | 128,974 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,267 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,389 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,622 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,805 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,753 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,169 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 75,290 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,119 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,630 |
| Countries with Double Letters | 0 | - | 4.97 | 93,604 |
| Countries that End in N | 0 | - | 4.94 | 157,077 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,924 |
| Countries with Six Letters | 0 | - | 4.93 | 210,598 |
| Countries with W | 0 | - | 4.97 | 158,369 |
| Countries with Z | 0 | - | 4.98 | 288,138 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,702 |
| Countries That End in U | 0 | - | 4.95 | 119,590 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,803 |
| Countries that End in O | 0 | - | 4.92 | 158,625 |
| Countries that End in R | 0 | - | 4.87 | 118,347 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,911 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,325 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,487 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,605 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,151 |
| Countries That End in Y | 0 | - | 4.90 | 185,263 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,553 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,837 |
| Countries that End in I | 0 | - | 4.94 | 134,512 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,392 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,269 |
| Countries That End in NIA | 0 | - | 4.92 | 109,087 |
| Countries That End in BIA | 0 | - | 4.92 | 147,817 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,202 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,598 |
| Countries That End in RIA | 0 | - | 4.93 | 126,166 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,132 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,588 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,631 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,990 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,496 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,995 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,236 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,754 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,636 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,870 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,280 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,943 |
| Countries that End in L | 0 | - | 4.94 | 156,128 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,854 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,016 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,595 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,405 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,496 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,799 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,537 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 141,114 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,584 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,943 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,866 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,787 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,227 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,450 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,393 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,805,646 |
| One Border Countries | 0 | - | 4.98 | 465,253 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,594,058 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,346 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 44,965 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,095 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,369 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,092 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,587 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,870 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,456 |
| Majority Muslim Countries | 0 | - | 4.98 | 370,201 |
| Countries by National Anthem | 0 | - | 4.92 | 71,064 |
| NATO Countries | 0 | - | 4.98 | 276,894 |
| EU Countries Quiz | 0 | - | 4.99 | 270,627 |
| Recently Independent Countries | 0 | - | 4.98 | 158,130 |
