| Countries with Double Letters | 0 | - | 4.96 | 70,404 |
| Countries that End in N | 0 | - | 4.94 | 134,612 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 231,976 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 189,265 |
| Countries with W | 0 | - | 4.96 | 124,528 |
| Countries with Z | 0 | - | 4.98 | 255,144 |
| Countries with Letters Missing | 0 | - | 4.97 | 168,660 |
| Countries That End in U | 0 | - | 4.95 | 108,562 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 91,210 |
| Countries that End in O | 0 | - | 4.92 | 148,055 |
| Countries that End in R | 0 | - | 4.84 | 96,969 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,751 |
| Countries Ending in "IA" | 0 | - | 4.99 | 172,962 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 157,070 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,243 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 130,179 |
| Countries That End in Y | 0 | - | 4.90 | 162,075 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 162,236 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 121,862 |
| Countries that End in I | 0 | - | 4.92 | 114,935 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 150,771 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 89,040 |
| Countries That End in NIA | 0 | - | 4.93 | 101,458 |
| Countries That End in BIA | 0 | - | 4.91 | 126,873 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 154,495 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 110,498 |
| Countries That End in RIA | 0 | - | 4.90 | 101,561 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 101,224 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 203,249 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 120,896 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 111,972 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 78,561 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 93,364 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 97,604 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,364 |
| Countries with the Word "And" | 0 | - | 4.98 | 84,439 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 41,800 |
| Countries that End in L | 0 | - | 4.95 | 135,360 |
| "Land" Countries | 0 | - | 4.98 | 291,467 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 190,607 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,325 |
| Countries With One Word and Three A's | 0 | - | 4.87 | 31,484 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 330,710 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,447,343 |
| Countries with Four Letters | 0 | - | 4.99 | 377,211 |
| Members of the Arab League | 0 | - | 4.85 | 64,884 |
| Sahara Desert Countries | 0 | - | 4.97 | 129,141 |
| Himalayan Countries | 0 | - | 4.95 | 107,109 |
| Andean Countries | 0 | - | 4.91 | 59,590 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 60,645 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,365 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 103,760 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,600 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,909 |
| Danube Countries | 0 | - | 4.96 | 57,032 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,046 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,136 |
| Countries with the Best Passports | 0 | - | 4.87 | 72,168 |
| Countries with the Worst Passports | 0 | - | 4.88 | 50,025 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 110,313 |
| European Landlocked Countries | 0 | - | 4.99 | 136,675 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,426 |
| Countries with the Most Species | 0 | - | 4.99 | 89,734 |
| Countries 197 to 205 | 0 | - | 4.87 | 56,937 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,904 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,202 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,761 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,705 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,973 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,606 |
| Countries in the Alps | 0 | - | 4.84 | 103,422 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,040 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 88,577 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,013 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,085 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,568 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,058 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,207 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,545 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,563 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,144 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,901 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,858 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,899 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,256 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,409 |
| Countries with the Most Grassland | 0 | - | 4.94 | 69,985 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 99,620 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,726 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 53,808 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 199,997 |
| World Countries - Blind Typing | 0 | - | 5.00 | 74,375 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,629 |
| Largest Countries By Category | 0 | - | 4.97 | 145,884 |
| Countries by Countries | 0 | - | 4.96 | 55,238 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,133,533 |
| Country Flags with the Most White | 0 | - | 4.90 | 125,557 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,030 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 44,970 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,070 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,200,088 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 117,283 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 183,687 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 343,369 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 359,844 |
| Island Countries Quiz | 0 | - | 4.99 | 665,584 |
| Biggest Countries by Area | 0 | - | 5.00 | 941,737 |
| Northernmost Countries | 0 | - | 4.99 | 329,610 |
| Countries of South America | 0 | - | 5.00 | 803,680 |
| Countries of Oceania | 0 | - | 5.00 | 905,872 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,596,368 |
| Countries with J | 0 | - | 4.55 | 173,305 |
| Add A Letter - Make a Country | 0 | - | 4.80 | 68,617 |
| Countries by Consonants | 0 | - | 4.44 | 73,468 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 127,870 |
| Countries with Megacities | 0 | - | 4.99 | 200,183 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 173,726 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,154 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 97,243 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 65,131 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 251,026 |
| Countries by Official Language | 0 | - | 4.96 | 174,386 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 251,598 |
| Countries in their Native Language | 0 | - | 4.98 | 179,549 |
| Independence from Whom | 0 | - | 4.99 | 187,855 |
| Subdivisions by Country | 0 | - | 4.82 | 46,731 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 114,785 |
| Megadiverse Countries | 0 | - | 4.96 | 126,241 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 92,694 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,227 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,668 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 132,484 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,587 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 78,977 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,752 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,449 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,706 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 44,593 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 102,009 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,647 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,189 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,089 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,718 |
| Countries of the World in Alphabetical Order | 0 | - | 4.99 | 84,755 |
| World Map Quiz | 0 | - | 4.91 | 50,643 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 116,568 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 82,254 |
| Southernmost Countries of the World | 0 | - | 4.99 | 208,775 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 92,047 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 109,289 |
| Countries With the Most Languages | 0 | - | 4.91 | 176,082 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,159 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 72,552 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 87,638 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 54,682 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,146 |
| Widest Countries East to West | 0 | - | 4.93 | 120,112 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,016 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 159,943 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,462 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,055 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,235 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,148 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,841 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,667 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,278 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,932 |
| City to Country Quiz #3 | 0 | - | 4.87 | 100,731 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 72,236 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 210,035 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 169,180 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 117,304 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 134,181 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 195,432 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 141,771 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 66,342 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.84 | 102,906 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,928 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 57,035 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,322,010 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 352,012 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,097,258 |
| One Border Countries | 0 | - | 4.98 | 413,176 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.75 | 93,766 |
| Most Similar Country Names | 0 | - | 4.15 | 43,943 |
| Longest Country Name A-Z | 0 | - | 4.36 | 37,461 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,440,933 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,929 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 247,073 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 109,966 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 103,947 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 71,586 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 51,028 |
| Countries by National Anthem | 0 | - | 4.95 | 62,064 |
| NATO Countries Quiz | 0 | - | 4.98 | 227,983 |
| EU Countries Quiz | 0 | - | 4.99 | 230,128 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 145,610 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 78,199 |
| Countries That Use the Euro | 0 | - | 4.93 | 64,988 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 228,112 |
