| Landlocked Countries Quiz | 0 | - | 4.99 | 334,254 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,750,376 |
| Members of the Arab League | 0 | - | 4.86 | 66,256 |
| Sahara Desert Countries | 0 | - | 4.97 | 130,459 |
| Himalayan Countries | 0 | - | 4.94 | 108,406 |
| Andean Countries | 0 | - | 4.91 | 60,182 |
| Countries with the Oldest Median Age | 0 | - | 4.82 | 61,368 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,843 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 104,458 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,843 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 54,259 |
| Danube Countries | 0 | - | 4.96 | 57,228 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,241 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,295 |
| Countries with the Best Passports | 0 | - | 4.86 | 72,708 |
| Countries with the Worst Passports | 0 | - | 4.89 | 50,400 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 111,021 |
| European Landlocked Countries | 0 | - | 4.99 | 137,042 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,809 |
| Countries with the Most Species | 0 | - | 4.99 | 89,857 |
| Countries 197 to 205 | 0 | - | 4.87 | 57,341 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 45,022 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,314 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 49,061 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,883 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 59,120 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,924 |
| Countries in the Alps | 0 | - | 4.84 | 103,854 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,437 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 89,507 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,282 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,382 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,898 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,344 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,550 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,776 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,695 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,414 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 70,174 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 49,032 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 37,032 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,583 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,676 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,241 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 100,553 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,962 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 54,039 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 202,509 |
| World Countries - Blind Typing | 0 | - | 5.00 | 75,381 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,830 |
| Largest Countries By Category | 0 | - | 4.97 | 146,432 |
| Countries by Countries | 0 | - | 4.95 | 55,599 |
| Country Flags with the Most White | 0 | - | 4.90 | 126,544 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,206 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,616 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,170,080 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,227,671 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 344,991 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 362,558 |
| Island Countries Quiz | 0 | - | 4.99 | 668,561 |
| Biggest Countries by Area | 0 | - | 5.00 | 947,275 |
| Northernmost Countries | 0 | - | 4.99 | 330,874 |
| Countries of South America | 0 | - | 5.00 | 809,716 |
| Countries of Oceania | 0 | - | 5.00 | 913,382 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,610,746 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 128,985 |
| Countries with Megacities | 0 | - | 4.99 | 201,781 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,314 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,935 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 98,208 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,838 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 252,947 |
| Countries by Official Language | 0 | - | 4.96 | 175,206 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 253,170 |
| Countries in their Native Language | 0 | - | 4.98 | 180,525 |
| Independence from Whom | 0 | - | 4.99 | 189,329 |
| Subdivisions by Country | 0 | - | 4.84 | 46,888 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 115,600 |
| Megadiverse Countries | 0 | - | 4.96 | 126,783 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 93,868 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,572 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,808 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 133,312 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,884 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 79,609 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 146,027 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,710 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,850 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 45,056 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 102,249 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,930 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,457 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,396 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 66,017 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 86,393 |
| World Map Quiz | 0 | - | 4.90 | 51,372 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 118,389 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 82,709 |
| Southernmost Countries of the World | 0 | - | 4.99 | 209,694 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 92,790 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 109,931 |
| Countries With the Most Languages | 0 | - | 4.90 | 177,644 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,672 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 73,037 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 88,245 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 55,071 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,543 |
| Widest Countries East to West | 0 | - | 4.93 | 120,518 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,114 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 160,514 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,813 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,401 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,623 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,627 |
| Countries with the Most Desert | 0 | - | 4.92 | 106,454 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,794 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,405 |
| Countries with Double Letters | 0 | - | 4.96 | 71,760 |
| Countries that End in N | 0 | - | 4.94 | 135,935 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 233,791 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 190,488 |
| Countries with W | 0 | - | 4.96 | 125,610 |
| Countries with Z | 0 | - | 4.98 | 264,578 |
| Countries with Letters Missing | 0 | - | 4.97 | 169,655 |
| Countries That End in U | 0 | - | 4.95 | 109,315 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 92,330 |
| Countries that End in O | 0 | - | 4.92 | 148,623 |
| Countries that End in R | 0 | - | 4.85 | 97,294 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 148,074 |
| Countries Ending in "IA" | 0 | - | 4.99 | 174,103 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 157,668 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,670 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 130,610 |
| Countries That End in Y | 0 | - | 4.90 | 162,392 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 162,946 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 122,347 |
| Countries that End in I | 0 | - | 4.92 | 115,193 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 151,602 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 89,367 |
| Countries That End in NIA | 0 | - | 4.92 | 101,796 |
| Countries That End in BIA | 0 | - | 4.91 | 127,273 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 155,117 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 110,947 |
| Countries That End in RIA | 0 | - | 4.90 | 101,871 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 101,718 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 204,490 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 121,573 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 112,695 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 79,251 |
| Countries With One Word and Three A's | 0 | - | 4.87 | 31,877 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 93,810 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 98,135 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,670 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 42,465 |
| Countries that End in L | 0 | - | 4.95 | 135,818 |
| "Land" Countries | 0 | - | 4.98 | 292,260 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 191,240 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 82,868 |
| City to Country Quiz #1 | 0 | - | 4.95 | 135,333 |
| City to Country Quiz #3 | 0 | - | 4.87 | 101,047 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 72,590 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 211,034 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 170,896 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 117,780 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 134,883 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 196,353 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 142,542 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 66,608 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.84 | 103,289 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 83,258 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 57,358 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,328,530 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 353,302 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,116,212 |
| One Border Countries | 0 | - | 4.98 | 415,685 |
| Top-Producing Countries | 0 | - | 4.71 | 100,766 |
| Country Codes Quiz | 0 | - | 4.45 | 78,268 |
| Countries on the Equator | 0 | - | 4.78 | 135,172 |
| Separatist Movements | 0 | - | 4.45 | 43,133 |
| Prime Meridian Countries | 0 | - | 4.63 | 52,160 |
| Next Country Alphabetically | 0 | - | 4.75 | 80,873 |
| Westernmost Countries | 0 | - | 4.50 | 47,884 |
| Easternmost Countries | 0 | - | 4.76 | 60,801 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 37,507 |
| Top 10 Most Famous Island Countries | 0 | - | 4.71 | 100,315 |
| Indochina Countries | 0 | - | 4.72 | 63,318 |
| Atlantic Ocean Island Countries | 0 | - | 4.54 | 63,364 |
| Countries With the Most Conflict Deaths | 0 | - | 4.64 | 92,118 |
| Highest Foreign Aid Recipients | 0 | - | 4.70 | 42,700 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 55,479 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.75 | 46,308 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.45 | 43,285 |
| Countries that are the Source of Refugees | 0 | - | 4.69 | 57,102 |
| Most Populous Countries By Category | 0 | - | 4.57 | 62,094 |
| Countries with the Most Turkic People | 0 | - | 4.80 | 42,602 |
| Countries Most-Mentioned by the New York Times | 0 | - | 4.66 | 45,702 |
| Flyover Countries | 0 | - | 4.65 | 47,905 |
| Top 50 Countries by Area - In Order | 0 | - | 4.76 | 67,753 |
| Countries with the Most Coral Reefs | 0 | - | 4.70 | 37,902 |
| Countries Without a U.S. Embassy | 0 | - | 4.58 | 43,092 |
