| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 65,048 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,071 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,993 |
| Countries with the Most Mangroves | 0 | - | 4.54 | 34,759 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,934 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,819 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 110,054 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 181,316 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 127,092 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,971,407 |
| Landlocked Countries | 0 | - | 4.99 | 427,268 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,328 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,615 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,029 |
| Countries with Glaciers | 0 | - | 4.97 | 105,897 |
| Countries with the Most Forest | 0 | - | 4.88 | 148,308 |
| Most Forested European Countries | 0 | - | 4.80 | 75,747 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,810 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,226 |
| Coldest Countries | 0 | - | 4.97 | 139,530 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,210 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.95 | 73,138 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,982 |
| Countries with the Most Nobel Prizes | 0 | - | 4.87 | 91,101 |
| Countries with the Least Precipitation | 0 | - | 4.90 | 83,115 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,812,670 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,370 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,928 |
| Himalayan Countries | 0 | - | 4.93 | 140,839 |
| Andean Countries | 0 | - | 4.94 | 85,807 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,923 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,495 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,470 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,695 |
| Danube Countries | 0 | - | 4.97 | 72,562 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,803 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,974 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,451 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,921 |
| European Landlocked Countries | 0 | - | 4.99 | 147,743 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,541 |
| Countries with the Most Species | 0 | - | 4.99 | 103,651 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,641 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,815 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,953 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,926 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,681 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,137 |
| Countries in the Alps | 0 | - | 4.87 | 118,980 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,003 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,136 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,056 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,172 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,128 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,393 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,600 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,994 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,516 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,316 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,954 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,831 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,677 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,926 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,023 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,152 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,738 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,483 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,844 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,316 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,500 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,619 |
| Largest Countries By Category | 0 | - | 4.97 | 159,100 |
| Countries by Countries | 0 | - | 4.97 | 63,811 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,235 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 113,278 |
| Countries with the Most Exports | 0 | - | 4.96 | 156,383 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,679 |
| Countries by Oil Consumption | 0 | - | 4.96 | 124,900 |
| Largest Economies in 2050 | 0 | - | 4.88 | 112,069 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 414,411 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 275,567 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 105,145 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 85,221 |
| Highest Fertility Countries | 0 | - | 4.90 | 27,311 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,635 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,046 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,372 |
| Island Countries | 0 | - | 4.99 | 713,017 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,397,113 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,192 |
| Northernmost Countries | 0 | - | 4.99 | 364,606 |
| Countries of South America | 0 | - | 5.00 | 934,318 |
| Countries of Oceania | 0 | - | 5.00 | 1,065,568 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,893,114 |
| "Land" Countries | 0 | - | 4.98 | 339,002 |
| Least Forested European Countries | 0 | - | 4.25 | 54,227 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,507 |
| Countries with Megacities | 0 | - | 4.99 | 267,870 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,161 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,344 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,486 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,443 |
| Countries by Official Language | 0 | - | 4.95 | 196,227 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,952 |
| Countries in their Native Language | 0 | - | 4.99 | 199,965 |
| Independence from Whom | 0 | - | 4.99 | 213,416 |
| Subdivisions by Country | 0 | - | 4.87 | 50,668 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,671 |
| Megadiverse Countries | 0 | - | 4.96 | 149,105 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,140 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,579 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,810 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,260 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,477 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,925 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,285 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,626 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,167 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,288 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,778 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,489 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,510 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,219 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,642 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,818 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,519 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,236 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,710 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,940 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,557 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,665 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,853 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,764 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,945 |
| Widest Countries East to West | 0 | - | 4.92 | 130,856 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,629 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,403 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,565 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,163 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,117 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,618 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,535 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,922 |
| Countries with Double Letters | 0 | - | 4.96 | 97,643 |
| Countries that End in N | 0 | - | 4.95 | 172,642 |
| Countries with Five Letters | 0 | - | 4.96 | 284,660 |
| Countries with Six Letters | 0 | - | 4.94 | 214,969 |
| Countries with W | 0 | - | 4.96 | 161,323 |
| Countries with Z | 0 | - | 4.98 | 293,016 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,681 |
| Countries That End in U | 0 | - | 4.95 | 121,396 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,439 |
| Countries that End in O | 0 | - | 4.92 | 160,373 |
| Countries that End in R | 0 | - | 4.87 | 119,283 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,062 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,162 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 185,995 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,202 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,787 |
| Countries That End in Y | 0 | - | 4.91 | 186,177 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,307 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,425 |
| Countries that End in I | 0 | - | 4.94 | 135,428 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,285 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,150 |
| Countries That End in NIA | 0 | - | 4.92 | 110,159 |
| Countries That End in BIA | 0 | - | 4.93 | 149,742 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,939 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,908 |
| Countries That End in RIA | 0 | - | 4.93 | 127,151 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,546 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,958 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,399 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,867 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,412 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,927 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,460 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,612 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,740 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,622 |
| Countries that End in L | 0 | - | 4.94 | 157,250 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,601 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,381 |
| City to Country Quiz #1 | 0 | - | 4.96 | 157,889 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,159 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,546 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,666 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,315 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,527 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,417 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,196 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,322 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,299 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,972 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,877 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,366 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,853,415 |
| One Border Countries | 0 | - | 4.98 | 472,602 |
| Least Forested Countries in Asia | 0 | - | 4.75 | 64,981 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,659,859 |
