| Countries of the World Quiz | 0 | - | 5.00 | 47,081,889 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,943 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,867 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 134,631 |
| Countries with the Most Airports | 0 | - | 4.96 | 97,642 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 124,348 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 119,712 |
| Landlocked Countries | 0 | - | 4.99 | 415,641 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,733,102 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,422 |
| Himalayan Countries | 0 | - | 4.95 | 136,076 |
| Andean Countries | 0 | - | 4.95 | 83,223 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,541 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,706 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,228 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,871 |
| Danube Countries | 0 | - | 4.97 | 71,289 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,043 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,741 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,925 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,871 |
| European Landlocked Countries | 0 | - | 4.99 | 145,997 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,580 |
| Countries with the Most Species | 0 | - | 4.99 | 95,361 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,706 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,281 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,448 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,084 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,736 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,103 |
| Countries in the Alps | 0 | - | 4.86 | 117,165 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,789 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,650 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,175 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,612 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,416 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,165 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,837 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,915 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,715 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,232 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,285 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,155 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,641 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,907 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,916 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,523 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,818 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,362 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,076 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,434 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,284 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,748 |
| Largest Countries By Category | 0 | - | 4.97 | 157,082 |
| Countries by Countries | 0 | - | 4.96 | 62,469 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,721 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,040 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,387 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,990 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,068 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,960 |
| Island Countries | 0 | - | 4.99 | 708,444 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,115 |
| Northernmost Countries | 0 | - | 4.99 | 358,852 |
| Countries of South America | 0 | - | 5.00 | 918,264 |
| Countries of Oceania | 0 | - | 5.00 | 1,044,836 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,855,312 |
| "Land" Countries | 0 | - | 4.98 | 334,167 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,405 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,367,893 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,736 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,759 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,992 |
| Countries with Megacities | 0 | - | 4.99 | 248,381 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,884 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,398 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,271 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,337 |
| Countries by Official Language | 0 | - | 4.95 | 193,300 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,856 |
| Countries in their Native Language | 0 | - | 4.99 | 197,110 |
| Independence from Whom | 0 | - | 4.99 | 210,235 |
| Subdivisions by Country | 0 | - | 4.86 | 50,155 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,121 |
| Megadiverse Countries | 0 | - | 4.96 | 134,479 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,283 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,029 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,563 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,919 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,919 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,150 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,393 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,472 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,313 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,790 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 75,996 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,532 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,638 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,601 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,812 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,135 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,225 |
| World Map Quiz | 0 | - | 4.81 | 63,865 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,852 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,623 |
| Countries by Founding Story | 0 | - | 4.95 | 76,750 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,847 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,562 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,283 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,432 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,149 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,349 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,537 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,094 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,560 |
| Widest Countries East to West | 0 | - | 4.92 | 129,051 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,296 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,529 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,662 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,887 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,871 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,260 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,853 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,649 |
| Countries with Double Letters | 0 | - | 4.96 | 93,746 |
| Countries that End in N | 0 | - | 4.94 | 157,185 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,112 |
| Countries with Six Letters | 0 | - | 4.93 | 210,770 |
| Countries with W | 0 | - | 4.97 | 158,461 |
| Countries with Z | 0 | - | 4.98 | 288,316 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,809 |
| Countries That End in U | 0 | - | 4.95 | 119,633 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,928 |
| Countries that End in O | 0 | - | 4.92 | 158,676 |
| Countries that End in R | 0 | - | 4.87 | 118,394 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,947 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,482 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,592 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,689 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,244 |
| Countries That End in Y | 0 | - | 4.90 | 185,303 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,662 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,949 |
| Countries that End in I | 0 | - | 4.94 | 134,565 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,537 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,331 |
| Countries That End in NIA | 0 | - | 4.92 | 109,158 |
| Countries That End in BIA | 0 | - | 4.92 | 147,926 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,301 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,667 |
| Countries That End in RIA | 0 | - | 4.93 | 126,220 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,208 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,815 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,720 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,065 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,631 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,050 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,316 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,827 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,727 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,918 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,385 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,041 |
| Countries that End in L | 0 | - | 4.94 | 156,179 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,328 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,028 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,651 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,485 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,549 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,085 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,685 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 141,948 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,704 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,106 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,962 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,837 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,255 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,474 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,443 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,394 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,488 |
| One Border Countries | 0 | - | 4.98 | 465,884 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,809,408 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,598,763 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,893 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,192 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,651 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,196 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,679 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,995 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,553 |
| Countries by National Anthem | 0 | - | 4.93 | 71,086 |
| NATO Countries | 0 | - | 4.98 | 277,460 |
| EU Countries Quiz | 0 | - | 4.99 | 271,071 |
| Recently Independent Countries | 0 | - | 4.98 | 158,244 |
| French-Speaking Countries | 0 | - | 4.85 | 269,387 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,462 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,635 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,903 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 269,704 |
