| Countries with Double Letters | 0 | - | 4.96 | 67,337 |
| Countries that End in N | 0 | - | 4.93 | 131,791 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 228,522 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 186,066 |
| Countries with W | 0 | - | 4.97 | 121,991 |
| Countries with Z | 0 | - | 4.98 | 243,204 |
| Countries with Letters Missing | 0 | - | 4.97 | 154,883 |
| Countries That End in U | 0 | - | 4.94 | 107,186 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 88,635 |
| Countries that End in O | 0 | - | 4.92 | 146,557 |
| Countries that End in R | 0 | - | 4.86 | 96,236 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,982 |
| Countries Ending in "IA" | 0 | - | 4.99 | 170,317 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 155,093 |
| Countries by Last Two Letters | 0 | - | 4.90 | 115,763 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 128,707 |
| Countries That End in Y | 0 | - | 4.90 | 161,368 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 159,898 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 120,068 |
| Countries that End in I | 0 | - | 4.92 | 114,252 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 148,715 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 87,945 |
| Countries That End in NIA | 0 | - | 4.93 | 100,460 |
| Countries That End in BIA | 0 | - | 4.91 | 125,525 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 152,581 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,228 |
| Countries That End in RIA | 0 | - | 4.89 | 100,581 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 99,921 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 199,211 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 118,917 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 109,745 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 76,614 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 91,699 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,130 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 42,501 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 39,999 |
| Countries that End in L | 0 | - | 4.95 | 133,540 |
| "Land" Countries | 0 | - | 4.98 | 288,230 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 188,021 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,101 |
| Countries With One Word and Three A's | 0 | - | 4.84 | 30,360 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 319,043 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,575,412 |
| Countries with Four Letters | 0 | - | 4.99 | 374,696 |
| Countries on the Equator | 0 | - | 4.83 | 133,405 |
| Members of the Arab League | 0 | - | 4.83 | 59,892 |
| Sahara Desert Countries | 0 | - | 4.97 | 125,570 |
| Himalayan Countries | 0 | - | 4.95 | 102,955 |
| Andean Countries | 0 | - | 4.90 | 57,226 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 58,064 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,689 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,045 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,652 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,849 |
| Danube Countries | 0 | - | 4.97 | 56,415 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,453 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,649 |
| Countries with the Best Passports | 0 | - | 4.87 | 70,555 |
| Countries with the Worst Passports | 0 | - | 4.87 | 48,918 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,559 |
| European Landlocked Countries | 0 | - | 4.99 | 114,905 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,898 |
| Countries with the Most Species | 0 | - | 4.99 | 89,119 |
| Countries 197 to 205 | 0 | - | 4.88 | 55,961 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,503 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,861 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,862 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,186 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 58,507 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,785 |
| Countries in the Alps | 0 | - | 4.83 | 102,022 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,811 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 86,100 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,216 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,845 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,508 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,176 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,191 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,849 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,120 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,274 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,020 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,391 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,476 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,088 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,601 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,090 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,923 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,038 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,050 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 193,715 |
| World Countries - Blind Typing | 0 | - | 5.00 | 71,763 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,031 |
| Largest Countries By Category | 0 | - | 4.96 | 144,102 |
| Countries by Countries | 0 | - | 4.96 | 54,223 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,031,627 |
| Country Flags with the Most White | 0 | - | 4.92 | 118,952 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,454 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 77,559 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 116,077 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 178,656 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 339,103 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 352,626 |
| Island Countries Quiz | 0 | - | 4.99 | 639,744 |
| Biggest Countries by Area | 0 | - | 5.00 | 926,754 |
| Northernmost Countries | 0 | - | 4.99 | 325,730 |
| Countries of South America | 0 | - | 5.00 | 785,753 |
| Countries of Oceania | 0 | - | 5.00 | 884,746 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,119,152 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,556,706 |
| Countries with J | 0 | - | 4.56 | 170,516 |
| Add A Letter - Make a Country | 0 | - | 4.79 | 67,758 |
| Countries by Consonants | 0 | - | 4.44 | 72,537 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 124,514 |
| Countries with Megacities | 0 | - | 4.99 | 195,283 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,917 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 97,087 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 94,012 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,949 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 245,736 |
| Countries by Official Language | 0 | - | 4.95 | 153,758 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 247,305 |
| Countries in their Native Language | 0 | - | 4.98 | 177,260 |
| Independence from Whom | 0 | - | 4.99 | 184,169 |
| Subdivisions by Country | 0 | - | 4.82 | 46,254 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 112,562 |
| Megadiverse Countries | 0 | - | 4.96 | 124,895 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 90,257 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 106,126 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,177 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 130,295 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 48,846 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 77,126 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,430 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,613 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,140 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 43,197 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 100,922 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,601 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,544 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,148 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,861 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 80,674 |
| World Map Quiz | 0 | - | 4.90 | 48,368 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 111,316 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 80,931 |
| Southernmost Countries of the World | 0 | - | 4.99 | 205,648 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,304 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,275 |
| Countries With the Most Languages | 0 | - | 4.90 | 172,032 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 86,700 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 71,031 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 85,675 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,436 |
| Tallest Countries North to South | 0 | - | 4.84 | 109,984 |
| Widest Countries East to West | 0 | - | 4.93 | 118,857 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,723 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 158,101 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,180 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 84,938 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 118,284 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,680 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,309 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 31,907 |
| City to Country Quiz #1 | 0 | - | 4.94 | 133,896 |
| City to Country Quiz #3 | 0 | - | 4.86 | 99,870 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,225 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 206,712 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 163,094 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 115,914 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 131,938 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 192,413 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 140,229 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,579 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 91,759 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,008 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 55,688 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,304,498 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,953 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,042,197 |
| One Border Countries | 0 | - | 4.98 | 407,273 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.75 | 92,598 |
| Most Similar Country Names | 0 | - | 4.15 | 43,490 |
| Longest Country Name A-Z | 0 | - | 4.36 | 36,652 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,366,360 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 65,557 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 243,834 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,397 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,585 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 64,587 |
| Countries by National Anthem | 0 | - | 4.94 | 61,688 |
| NATO Countries Quiz | 0 | - | 4.98 | 224,122 |
| EU Countries Quiz | 0 | - | 4.99 | 226,546 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 143,892 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 77,265 |
| Countries That Use the Euro | 0 | - | 4.91 | 61,797 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 224,736 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 216,404 |
| German-Speaking Countries | 0 | - | 4.88 | 117,232 |
| Countries with Wild Tigers | 0 | - | 4.95 | 110,436 |
