| Landlocked Countries | 0 | - | 4.99 | 426,897 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,941,758 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,743 |
| Himalayan Countries | 0 | - | 4.93 | 140,665 |
| Andean Countries | 0 | - | 4.94 | 85,725 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,847 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,383 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,403 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,633 |
| Danube Countries | 0 | - | 4.97 | 72,513 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,734 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,937 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,362 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,819 |
| European Landlocked Countries | 0 | - | 4.99 | 147,702 |
| Countries with the Most Species | 0 | - | 4.99 | 103,625 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,573 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,802 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,935 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,899 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,655 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,102 |
| Countries in the Alps | 0 | - | 4.87 | 118,916 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,897 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,055 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,036 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,133 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,087 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,353 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,529 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,963 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,491 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,280 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,933 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,812 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,639 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,889 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,987 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,069 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,693 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,106 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,797 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,130 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,388 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,586 |
| Largest Countries By Category | 0 | - | 4.97 | 159,019 |
| Countries by Countries | 0 | - | 4.97 | 63,767 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,378 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,437 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,698 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,191 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,809,766 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,238 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,952 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,147 |
| Island Countries | 0 | - | 4.99 | 712,864 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,730 |
| Northernmost Countries | 0 | - | 4.99 | 364,423 |
| Countries of South America | 0 | - | 5.00 | 933,737 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,790 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,891,805 |
| "Land" Countries | 0 | - | 4.98 | 338,833 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,406 |
| Countries with Megacities | 0 | - | 4.99 | 267,622 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,052 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,277 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,389 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,381 |
| Countries by Official Language | 0 | - | 4.95 | 196,155 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,845 |
| Countries in their Native Language | 0 | - | 4.99 | 199,891 |
| Independence from Whom | 0 | - | 4.99 | 213,310 |
| Subdivisions by Country | 0 | - | 4.87 | 50,650 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,602 |
| Megadiverse Countries | 0 | - | 4.96 | 147,855 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,076 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,566 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,772 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,245 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,407 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,908 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,231 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,604 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,141 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,280 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,698 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,458 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,484 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,195 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,617 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,940 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,395,995 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,627 |
| World Map Quiz | 0 | - | 4.81 | 65,871 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,705 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,773 |
| Countries by Founding Story | 0 | - | 4.95 | 77,886 |
| Countries by Road Signs | 0 | - | 4.98 | 54,418 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,433 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,188 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,650 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,816 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,520 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,627 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,816 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,743 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,896 |
| Widest Countries East to West | 0 | - | 4.92 | 130,800 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,623 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,350 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,545 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,130 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,067 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,577 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,526 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,916 |
| Countries with Double Letters | 0 | - | 4.96 | 97,492 |
| Countries that End in N | 0 | - | 4.95 | 172,524 |
| Countries with Five Letters | 0 | - | 4.96 | 284,480 |
| Countries with Six Letters | 0 | - | 4.94 | 214,843 |
| Countries with W | 0 | - | 4.96 | 161,224 |
| Countries with Z | 0 | - | 4.98 | 292,866 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,587 |
| Countries That End in U | 0 | - | 4.95 | 121,340 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,335 |
| Countries that End in O | 0 | - | 4.92 | 160,337 |
| Countries that End in R | 0 | - | 4.87 | 119,258 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,031 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,071 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 183,633 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,096 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,568 |
| Countries That End in Y | 0 | - | 4.91 | 186,150 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,087 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,376 |
| Countries that End in I | 0 | - | 4.94 | 135,388 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,129 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,117 |
| Countries That End in NIA | 0 | - | 4.92 | 110,129 |
| Countries That End in BIA | 0 | - | 4.93 | 149,693 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,883 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,859 |
| Countries That End in RIA | 0 | - | 4.93 | 127,117 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,501 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,848 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,327 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,783 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,338 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,883 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,412 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,582 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 126,010 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,709 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,855 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,550 |
| Countries that End in L | 0 | - | 4.94 | 157,211 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,397 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,369 |
| City to Country Quiz #1 | 0 | - | 4.96 | 157,848 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,134 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,523 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,589 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,256 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,498 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,376 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,130 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,293 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,283 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,964 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,867 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,332 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,463 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,826 |
| One Border Countries | 0 | - | 4.98 | 472,377 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,735 |
| Top Producing Countries | 0 | - | 4.63 | 116,450 |
| ISO Country Codes | 0 | - | 4.49 | 91,949 |
| Countries on the Equator | 0 | - | 4.63 | 141,293 |
| Members of the Arab League | 0 | - | 4.77 | 75,745 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 70,105 |
| Separatist Movements | 0 | - | 4.45 | 46,060 |
| Countries with the Best Passports | 0 | - | 4.73 | 85,661 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,941 |
| Next Country Alphabetically | 0 | - | 4.70 | 86,468 |
| Westernmost Countries | 0 | - | 4.43 | 62,562 |
| Easternmost Countries | 0 | - | 4.74 | 63,081 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 39,774 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 109,074 |
| Indochina Countries | 0 | - | 4.74 | 66,380 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,695 |
| Countries With the Most Conflict Deaths | 0 | - | 4.63 | 96,841 |
| Highest Foreign Aid Recipients | 0 | - | 4.67 | 44,036 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 57,178 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 48,517 |
| Countries with More Sheep than People | 0 | - | 4.48 | 32,119 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 53,886 |
| Countries that are the Source of Refugees | 0 | - | 4.80 | 75,967 |
| Countries 206 to 242 | 0 | - | 4.74 | 34,097 |
| Most Populous Countries By Category | 0 | - | 4.55 | 85,728 |
| Countries with the Most Turkic People | 0 | - | 4.77 | 45,899 |
