| Countries with Wild Penguins | 0 | - | 4.94 | 100,528 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,527 |
| Countries with the Most Sheep | 0 | - | 4.93 | 103,638 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 33,199 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 113,120 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,572 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,865 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,866,651 |
| Landlocked Countries | 0 | - | 4.99 | 425,634 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 55,159 |
| Animal Populations of Countries | 0 | - | 4.52 | 44,051 |
| Top 15 Countries with the Most Cows | 0 | - | 4.73 | 107,494 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,803,429 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,158 |
| Himalayan Countries | 0 | - | 4.93 | 140,161 |
| Andean Countries | 0 | - | 4.94 | 85,391 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,539 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,927 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,117 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,393 |
| Danube Countries | 0 | - | 4.97 | 72,357 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,568 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,817 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,077 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,569 |
| European Landlocked Countries | 0 | - | 4.99 | 147,589 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,269 |
| Countries with the Most Species | 0 | - | 4.99 | 103,548 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,378 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,768 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,876 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,827 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,563 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,990 |
| Countries in the Alps | 0 | - | 4.87 | 118,745 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,574 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,830 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,946 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,007 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,933 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,234 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,376 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,843 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,407 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,157 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,855 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,732 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,542 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,769 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,870 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,787 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,596 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 66,087 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,642 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,612 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,104 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,490 |
| Largest Countries By Category | 0 | - | 4.97 | 158,835 |
| Countries by Countries | 0 | - | 4.96 | 63,624 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,229 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,392 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,663 |
| All Countries by Population With a Map | 0 | - | 4.98 | 110,923 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,418 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,093 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,281 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,639 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,613 |
| Island Countries | 0 | - | 4.99 | 712,500 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,665 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,529 |
| Northernmost Countries | 0 | - | 4.99 | 363,915 |
| Countries of South America | 0 | - | 5.00 | 932,481 |
| Countries of Oceania | 0 | - | 5.00 | 1,063,054 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,888,743 |
| "Land" Countries | 0 | - | 4.98 | 338,343 |
| Countries with More Cows than People | 0 | - | 4.46 | 61,643 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,393,261 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,566 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,352 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,106 |
| Countries with Megacities | 0 | - | 4.99 | 267,024 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,807 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,108 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,128 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,220 |
| Countries by Official Language | 0 | - | 4.95 | 195,964 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,597 |
| Countries in their Native Language | 0 | - | 4.99 | 199,711 |
| Independence from Whom | 0 | - | 4.99 | 213,026 |
| Subdivisions by Country | 0 | - | 4.87 | 50,609 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,409 |
| Megadiverse Countries | 0 | - | 4.96 | 135,270 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,925 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,532 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,637 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,224 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,852 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,836 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,099 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,565 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,025 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,251 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,501 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,367 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,440 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,139 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,570 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,830 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,319 |
| World Map Quiz | 0 | - | 4.81 | 65,702 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,164 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,702 |
| Countries by Founding Story | 0 | - | 4.95 | 77,785 |
| Countries by Road Signs | 0 | - | 4.98 | 54,336 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,226 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,064 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,544 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,539 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,418 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,518 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,717 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,684 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,681 |
| Widest Countries East to West | 0 | - | 4.92 | 130,447 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,595 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,242 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,512 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,055 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,959 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,470 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,494 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,888 |
| Countries with Double Letters | 0 | - | 4.96 | 97,046 |
| Countries that End in N | 0 | - | 4.95 | 171,897 |
| Countries with Five Letters | 0 | - | 4.96 | 283,722 |
| Countries with Six Letters | 0 | - | 4.94 | 214,443 |
| Countries with W | 0 | - | 4.96 | 160,911 |
| Countries with Z | 0 | - | 4.98 | 292,415 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,268 |
| Countries That End in U | 0 | - | 4.95 | 121,176 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,081 |
| Countries that End in O | 0 | - | 4.92 | 160,204 |
| Countries that End in R | 0 | - | 4.87 | 119,176 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,928 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,810 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,134 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,814 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,742 |
| Countries That End in Y | 0 | - | 4.91 | 186,083 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,440 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,265 |
| Countries that End in I | 0 | - | 4.94 | 135,309 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,607 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,049 |
| Countries That End in NIA | 0 | - | 4.92 | 110,043 |
| Countries That End in BIA | 0 | - | 4.93 | 149,567 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,525 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,761 |
| Countries That End in RIA | 0 | - | 4.93 | 127,045 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,382 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,572 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,170 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,611 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,161 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,798 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,321 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,534 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,897 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,647 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,714 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,406 |
| Countries that End in L | 0 | - | 4.94 | 157,119 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 217,952 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,340 |
| City to Country Quiz #1 | 0 | - | 4.97 | 157,491 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,975 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,439 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,402 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,124 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,426 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,246 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,959 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,203 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,236 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,824 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,234 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,453,902 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,433 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 69,258 |
| One Border Countries | 0 | - | 4.98 | 471,872 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,848,120 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,651,906 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,689 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,312 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,003 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,637 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,888 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,205 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,600 |
