| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,648 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,474 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,391 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,227 |
| Landlocked Countries | 0 | - | 4.99 | 416,993 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,190,602 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,966 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,089 |
| Himalayan Countries | 0 | - | 4.95 | 136,650 |
| Andean Countries | 0 | - | 4.95 | 83,561 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,816 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,102 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,481 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,076 |
| Danube Countries | 0 | - | 4.97 | 71,466 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,278 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,877 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,225 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,220 |
| European Landlocked Countries | 0 | - | 4.99 | 146,164 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,826 |
| Countries with the Most Species | 0 | - | 4.99 | 102,197 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,953 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,347 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,526 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,185 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,836 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,214 |
| Countries in the Alps | 0 | - | 4.86 | 117,386 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,931 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,979 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,279 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,777 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,867 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,288 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,027 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,016 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,839 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,379 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,382 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,221 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,758 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,026 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,032 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,785 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,919 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,452 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,279 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,203 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,666 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,849 |
| Largest Countries By Category | 0 | - | 4.97 | 157,315 |
| Countries by Countries | 0 | - | 4.96 | 62,630 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,919 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,089 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,414 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,866 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,432 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,123 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,743,068 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,263 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,958 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,012 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,754 |
| Northernmost Countries | 0 | - | 4.99 | 359,545 |
| Countries of South America | 0 | - | 5.00 | 920,165 |
| Countries of Oceania | 0 | - | 5.00 | 1,047,652 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,859,895 |
| "Land" Countries | 0 | - | 4.98 | 334,786 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,371,347 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,417 |
| Countries with Megacities | 0 | - | 4.99 | 249,228 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,273 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,619 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,586 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,595 |
| Countries by Official Language | 0 | - | 4.95 | 194,093 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,895 |
| Countries in their Native Language | 0 | - | 4.99 | 197,714 |
| Independence from Whom | 0 | - | 4.99 | 210,894 |
| Subdivisions by Country | 0 | - | 4.86 | 50,214 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,407 |
| Megadiverse Countries | 0 | - | 4.96 | 134,573 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,912 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,089 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,956 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,256 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,656 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,576 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,813 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,372 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,598 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,698 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,665 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,877 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,670 |
| World Map Quiz | 0 | - | 4.81 | 64,168 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,581 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,739 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.85 | 63,549 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,495 |
| Countries by Founding Story | 0 | - | 4.95 | 76,914 |
| Countries by Road Signs | 0 | - | 4.98 | 53,453 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,115 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,705 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,434 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,790 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,304 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,494 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,657 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,163 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,708 |
| Widest Countries East to West | 0 | - | 4.92 | 129,177 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,335 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,703 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,935 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,973 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,011 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,389 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,129 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,683 |
| Countries with Double Letters | 0 | - | 4.96 | 94,272 |
| Countries that End in N | 0 | - | 4.95 | 167,715 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 261,467 |
| Countries with Six Letters | 0 | - | 4.93 | 211,291 |
| Countries with W | 0 | - | 4.97 | 158,931 |
| Countries with Z | 0 | - | 4.98 | 288,926 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,135 |
| Countries That End in U | 0 | - | 4.95 | 120,011 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,241 |
| Countries that End in O | 0 | - | 4.92 | 158,923 |
| Countries that End in R | 0 | - | 4.87 | 118,545 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,317 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,841 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,795 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,846 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,427 |
| Countries That End in Y | 0 | - | 4.90 | 185,464 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,903 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,131 |
| Countries that End in I | 0 | - | 4.94 | 134,702 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,743 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,430 |
| Countries That End in NIA | 0 | - | 4.92 | 109,319 |
| Countries That End in BIA | 0 | - | 4.93 | 148,606 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,459 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,807 |
| Countries That End in RIA | 0 | - | 4.93 | 126,371 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,374 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,163 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,901 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,235 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,844 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,171 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,478 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,984 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,877 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,040 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,561 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,256 |
| Countries that End in L | 0 | - | 4.94 | 156,325 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,066 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,084 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,724 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,585 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,637 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,386 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,844 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,392 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,862 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,300 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,067 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,882 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,305 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,534 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,533 |
| Name a Valid Island Country | 0 | - | 4.96 | 114,527 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,122 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,451 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,987 |
| One Border Countries | 0 | - | 4.98 | 466,628 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,120 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,815,005 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,605,743 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,323 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,980 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,383 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,117 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,128 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,675 |
| Countries by National Anthem | 0 | - | 4.92 | 71,132 |
| NATO Countries | 0 | - | 4.98 | 278,292 |
| EU Countries Quiz | 0 | - | 4.99 | 271,857 |
| Recently Independent Countries | 0 | - | 4.98 | 158,429 |
| French-Speaking Countries | 0 | - | 4.85 | 269,825 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,589 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,037 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,556 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 270,636 |
| German-Speaking Countries | 0 | - | 4.91 | 144,321 |
