| Countries with Wild Penguins | 0 | - | 4.94 | 100,873 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,805 |
| Countries with the Most Sheep | 0 | - | 4.93 | 103,771 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 33,299 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 113,265 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,747 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,936 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,960,919 |
| Landlocked Countries | 0 | - | 4.99 | 427,156 |
| Countries with the Most Wild Elephants | 0 | - | 4.64 | 55,224 |
| Animal Populations of Countries | 0 | - | 4.52 | 44,107 |
| Top 15 Countries with the Most Cows | 0 | - | 4.73 | 107,533 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,811,676 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,873 |
| Himalayan Countries | 0 | - | 4.93 | 140,785 |
| Andean Countries | 0 | - | 4.94 | 85,776 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,901 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,464 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,452 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,676 |
| Danube Countries | 0 | - | 4.97 | 72,533 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,786 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,969 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,420 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,893 |
| European Landlocked Countries | 0 | - | 4.99 | 147,728 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,521 |
| Countries with the Most Species | 0 | - | 4.99 | 103,638 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,625 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,812 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,950 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,916 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,669 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,121 |
| Countries in the Alps | 0 | - | 4.87 | 118,952 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,961 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,106 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,050 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,160 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,115 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,381 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,577 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,982 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,506 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,306 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,949 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,825 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,664 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,914 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,014 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,124 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,722 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,374 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,828 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,251 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,467 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,607 |
| Largest Countries By Category | 0 | - | 4.97 | 159,071 |
| Countries by Countries | 0 | - | 4.97 | 63,795 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,421 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,443 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,704 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,387 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,542 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,214 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,501 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,017 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,297 |
| Island Countries | 0 | - | 4.99 | 712,972 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,684 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,045 |
| Northernmost Countries | 0 | - | 4.99 | 364,549 |
| Countries of South America | 0 | - | 5.00 | 934,111 |
| Countries of Oceania | 0 | - | 5.00 | 1,065,314 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,892,696 |
| "Land" Countries | 0 | - | 4.98 | 338,956 |
| Countries with More Cows than People | 0 | - | 4.46 | 61,736 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,396,787 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,360 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,471 |
| Countries with Megacities | 0 | - | 4.99 | 267,786 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,120 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,325 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,453 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,422 |
| Countries by Official Language | 0 | - | 4.95 | 196,195 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,911 |
| Countries in their Native Language | 0 | - | 4.99 | 199,944 |
| Independence from Whom | 0 | - | 4.99 | 213,381 |
| Subdivisions by Country | 0 | - | 4.87 | 50,663 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,641 |
| Megadiverse Countries | 0 | - | 4.96 | 148,775 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,123 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,572 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,799 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,257 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,452 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,916 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,268 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,620 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,159 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,284 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,743 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,480 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,501 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,214 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,633 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,959 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,703 |
| World Map Quiz | 0 | - | 4.81 | 65,914 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,841 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,801 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.84 | 64,714 |
| Countries by Founding Story | 0 | - | 4.95 | 77,901 |
| Countries by Road Signs | 0 | - | 4.98 | 54,439 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,491 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,221 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,692 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,898 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,540 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,652 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,843 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,761 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,930 |
| Widest Countries East to West | 0 | - | 4.92 | 130,836 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,627 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,385 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,557 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,151 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,098 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,600 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,532 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,921 |
| Countries with Double Letters | 0 | - | 4.96 | 97,595 |
| Countries that End in N | 0 | - | 4.95 | 172,604 |
| Countries with Five Letters | 0 | - | 4.96 | 284,603 |
| Countries with Six Letters | 0 | - | 4.94 | 214,928 |
| Countries with W | 0 | - | 4.96 | 161,292 |
| Countries with Z | 0 | - | 4.98 | 292,966 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,651 |
| Countries That End in U | 0 | - | 4.95 | 121,377 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,403 |
| Countries that End in O | 0 | - | 4.92 | 160,365 |
| Countries that End in R | 0 | - | 4.87 | 119,273 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,055 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,130 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 185,208 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,170 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,698 |
| Countries That End in Y | 0 | - | 4.91 | 186,168 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,210 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,406 |
| Countries that End in I | 0 | - | 4.94 | 135,417 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,219 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,139 |
| Countries That End in NIA | 0 | - | 4.92 | 110,153 |
| Countries That End in BIA | 0 | - | 4.93 | 149,730 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,921 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,891 |
| Countries That End in RIA | 0 | - | 4.93 | 127,141 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,535 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,914 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,377 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,837 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,390 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,918 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,446 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,602 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 126,043 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,729 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,896 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,597 |
| Countries that End in L | 0 | - | 4.94 | 157,238 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,547 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,377 |
| City to Country Quiz #1 | 0 | - | 4.96 | 157,878 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,152 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,536 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,638 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,295 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,517 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,403 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,181 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,316 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,293 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,968 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,872 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,353 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,880 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,933 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 69,314 |
| One Border Countries | 0 | - | 4.98 | 472,530 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,852,770 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,659,080 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,754 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,453 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,500 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,801 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,991 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,352 |
