| Countries with Double Letters | 0 | - | 4.96 | 70,085 |
| Countries that End in N | 0 | - | 4.94 | 134,297 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 231,669 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 189,024 |
| Countries with W | 0 | - | 4.96 | 124,232 |
| Countries with Z | 0 | - | 4.98 | 246,333 |
| Countries with Letters Missing | 0 | - | 4.97 | 168,473 |
| Countries That End in U | 0 | - | 4.95 | 108,375 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 90,890 |
| Countries that End in O | 0 | - | 4.92 | 147,846 |
| Countries that End in R | 0 | - | 4.84 | 96,880 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,686 |
| Countries Ending in "IA" | 0 | - | 4.99 | 172,794 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 156,970 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,160 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 130,096 |
| Countries That End in Y | 0 | - | 4.90 | 162,030 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 162,118 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 121,763 |
| Countries that End in I | 0 | - | 4.92 | 114,878 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 150,663 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,983 |
| Countries That End in NIA | 0 | - | 4.93 | 101,397 |
| Countries That End in BIA | 0 | - | 4.91 | 126,781 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 110,427 |
| Countries That End in RIA | 0 | - | 4.90 | 101,511 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 101,153 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 203,052 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 120,785 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 111,840 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 78,454 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 93,254 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 97,507 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,312 |
| Countries with the Word "And" | 0 | - | 4.98 | 84,346 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 41,685 |
| Countries that End in L | 0 | - | 4.95 | 135,285 |
| "Land" Countries | 0 | - | 4.98 | 291,333 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 190,491 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,311 |
| Countries With One Word and Three A's | 0 | - | 4.87 | 31,415 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 330,157 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,401,161 |
| Countries with Four Letters | 0 | - | 4.99 | 377,065 |
| Members of the Arab League | 0 | - | 4.85 | 64,691 |
| Sahara Desert Countries | 0 | - | 4.97 | 128,980 |
| Himalayan Countries | 0 | - | 4.95 | 106,930 |
| Andean Countries | 0 | - | 4.91 | 59,471 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 60,545 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,296 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 103,663 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,563 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,855 |
| Danube Countries | 0 | - | 4.96 | 57,004 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,017 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,118 |
| Countries with the Best Passports | 0 | - | 4.87 | 72,082 |
| Countries with the Worst Passports | 0 | - | 4.88 | 49,966 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 110,248 |
| European Landlocked Countries | 0 | - | 4.99 | 136,543 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,381 |
| Countries with the Most Species | 0 | - | 4.99 | 89,709 |
| Countries 197 to 205 | 0 | - | 4.87 | 56,873 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,887 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,182 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,719 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,668 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,943 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,559 |
| Countries in the Alps | 0 | - | 4.84 | 103,345 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,955 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 88,435 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,975 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,035 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,511 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,000 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,166 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,506 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,541 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,099 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,856 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,821 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,873 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,214 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,370 |
| Countries with the Most Grassland | 0 | - | 4.94 | 69,936 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 99,468 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,687 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 53,762 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 199,630 |
| World Countries - Blind Typing | 0 | - | 5.00 | 74,206 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,591 |
| Largest Countries By Category | 0 | - | 4.97 | 145,789 |
| Countries by Countries | 0 | - | 4.96 | 55,174 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,127,707 |
| Country Flags with the Most White | 0 | - | 4.90 | 125,450 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,989 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 44,936 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,993 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,195,940 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 117,211 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 183,428 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 343,134 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 359,415 |
| Island Countries Quiz | 0 | - | 4.99 | 665,104 |
| Biggest Countries by Area | 0 | - | 5.00 | 940,865 |
| Northernmost Countries | 0 | - | 4.99 | 329,442 |
| Countries of South America | 0 | - | 5.00 | 802,845 |
| Countries of Oceania | 0 | - | 5.00 | 904,853 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,594,180 |
| Countries with J | 0 | - | 4.55 | 172,890 |
| Add A Letter - Make a Country | 0 | - | 4.80 | 68,562 |
| Countries by Consonants | 0 | - | 4.44 | 73,412 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 127,706 |
| Countries with Megacities | 0 | - | 4.99 | 199,953 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 173,510 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,046 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 97,094 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 65,022 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 250,738 |
| Countries by Official Language | 0 | - | 4.96 | 174,254 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 251,377 |
| Countries in their Native Language | 0 | - | 4.98 | 179,460 |
| Independence from Whom | 0 | - | 4.99 | 187,662 |
| Subdivisions by Country | 0 | - | 4.82 | 46,707 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 114,668 |
| Megadiverse Countries | 0 | - | 4.96 | 126,194 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 92,567 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,170 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,649 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 132,399 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,535 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 78,871 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,704 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,412 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,684 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 44,501 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,973 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,610 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,161 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,045 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,678 |
| Countries of the World in Alphabetical Order | 0 | - | 4.99 | 84,536 |
| World Map Quiz | 0 | - | 4.91 | 50,518 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 116,242 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 82,195 |
| Southernmost Countries of the World | 0 | - | 4.99 | 208,614 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 91,960 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 109,204 |
| Countries With the Most Languages | 0 | - | 4.91 | 175,888 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,099 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 72,485 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 87,551 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 54,610 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,089 |
| Widest Countries East to West | 0 | - | 4.93 | 120,051 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,006 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 159,865 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,017 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,179 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,069 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,779 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,644 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,260 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,879 |
| City to Country Quiz #3 | 0 | - | 4.86 | 100,698 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 72,184 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 209,866 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 168,955 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 117,240 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 134,089 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 195,299 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 141,687 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 66,293 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.84 | 102,837 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,869 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 56,990 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,320,918 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 351,555 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,094,247 |
| One Border Countries | 0 | - | 4.98 | 412,889 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.75 | 93,701 |
| Most Similar Country Names | 0 | - | 4.15 | 43,924 |
| Longest Country Name A-Z | 0 | - | 4.36 | 37,410 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,434,957 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,845 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 246,918 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 109,876 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 103,896 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 71,452 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 50,983 |
| Countries by National Anthem | 0 | - | 4.95 | 62,041 |
| NATO Countries Quiz | 0 | - | 4.98 | 227,721 |
| EU Countries Quiz | 0 | - | 4.99 | 229,935 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 145,519 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 78,168 |
| Countries That Use the Euro | 0 | - | 4.93 | 64,835 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 227,760 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 228,690 |
| German-Speaking Countries | 0 | - | 4.88 | 117,974 |
