| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,521 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,479 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,512 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,384 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,607 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,293,575 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,659 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,433 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 125,002 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.61 | 37,774 |
| Landlocked Countries | 0 | - | 4.99 | 418,291 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,301 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,670 |
| Countries with Glaciers | 0 | - | 4.97 | 104,994 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,370 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 334,500 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,722 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,828 |
| Coldest Countries | 0 | - | 4.97 | 138,244 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,164 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,100 |
| Countries with the Most Nobel Prizes | 0 | - | 4.87 | 90,416 |
| Countries with the Least Precipitation | 0 | - | 4.90 | 82,594 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,753,215 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,658 |
| Himalayan Countries | 0 | - | 4.94 | 137,143 |
| Andean Countries | 0 | - | 4.95 | 83,781 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,032 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,412 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,712 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,259 |
| Danube Countries | 0 | - | 4.97 | 71,587 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,457 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,990 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,532 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,591 |
| European Landlocked Countries | 0 | - | 4.99 | 146,700 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,032 |
| Countries with the Most Species | 0 | - | 4.99 | 102,825 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,171 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,402 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,559 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,263 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,935 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,313 |
| Countries in the Alps | 0 | - | 4.87 | 117,593 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,073 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,260 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,372 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,918 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,027 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,401 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,200 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,134 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,931 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,498 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,447 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,304 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,877 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,144 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,163 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,051 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,018 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,538 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,436 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,054 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,080 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,949 |
| Largest Countries By Category | 0 | - | 4.97 | 157,540 |
| Countries by Countries | 0 | - | 4.96 | 62,783 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,128 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,144 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,264 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,413 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,439 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,792 |
| Island Countries | 0 | - | 4.99 | 709,506 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,406 |
| Northernmost Countries | 0 | - | 4.99 | 360,200 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 412,308 |
| Countries of South America | 0 | - | 5.00 | 922,159 |
| Countries of Oceania | 0 | - | 5.00 | 1,050,032 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,864,670 |
| "Land" Countries | 0 | - | 4.98 | 335,662 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,548 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,374,417 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,991 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,022 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,332 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,243 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,219 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 269,983 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 103,973 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,318 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,803 |
| Countries with Megacities | 0 | - | 4.99 | 251,577 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,658 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,867 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,956 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,851 |
| Countries by Official Language | 0 | - | 4.95 | 194,531 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,377 |
| Countries in their Native Language | 0 | - | 4.99 | 198,088 |
| Independence from Whom | 0 | - | 4.99 | 211,193 |
| Subdivisions by Country | 0 | - | 4.86 | 50,262 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,611 |
| Megadiverse Countries | 0 | - | 4.96 | 134,726 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,242 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,154 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,721 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,000 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,650 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,334 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,885 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,791 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,458 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,962 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,829 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,675 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,946 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,748 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,105 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,298 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,033 |
| World Map Quiz | 0 | - | 4.81 | 64,418 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,286 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,970 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,390 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,870 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,581 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,178 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,460 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,635 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,778 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,230 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,233 |
| Widest Countries East to West | 0 | - | 4.92 | 129,317 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,372 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,889 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,977 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,473 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,153 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,491 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,217 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,714 |
| Countries with Double Letters | 0 | - | 4.97 | 94,992 |
| Countries that End in N | 0 | - | 4.95 | 169,752 |
| Countries with Five Letters | 0 | - | 4.96 | 279,401 |
| Countries with Six Letters | 0 | - | 4.94 | 212,355 |
| Countries with W | 0 | - | 4.97 | 159,441 |
| Countries with Z | 0 | - | 4.98 | 289,682 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,647 |
| Countries That End in U | 0 | - | 4.95 | 120,371 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,671 |
| Countries that End in O | 0 | - | 4.92 | 159,163 |
| Countries that End in R | 0 | - | 4.87 | 118,703 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,481 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,216 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,048 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,047 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,631 |
| Countries That End in Y | 0 | - | 4.90 | 185,619 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,153 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,351 |
| Countries that End in I | 0 | - | 4.94 | 134,833 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,001 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,547 |
| Countries That End in NIA | 0 | - | 4.92 | 109,482 |
| Countries That End in BIA | 0 | - | 4.93 | 148,794 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,652 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,003 |
| Countries That End in RIA | 0 | - | 4.93 | 126,496 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,583 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,538 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,138 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,485 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,049 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,284 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,635 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,187 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,068 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,170 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,765 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,472 |
| Countries that End in L | 0 | - | 4.94 | 156,502 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,794 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,145 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,805 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,684 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,730 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,672 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,071 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,559 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,036 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,525 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,519 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,929 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,583 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,627 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,820,483 |
