| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,406 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,035 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,279,044 |
| Landlocked Countries | 0 | - | 4.99 | 418,126 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,325,480 |
| Countries by Emojis | 0 | - | 4.99 | 238,388 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 55,591 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,751,908 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,583 |
| Himalayan Countries | 0 | - | 4.94 | 137,078 |
| Andean Countries | 0 | - | 4.95 | 83,754 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,000 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,380 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,674 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,245 |
| Danube Countries | 0 | - | 4.97 | 71,573 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,428 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,980 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,502 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,555 |
| European Landlocked Countries | 0 | - | 4.99 | 146,678 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,010 |
| Countries with the Most Species | 0 | - | 4.99 | 102,775 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,151 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,394 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,557 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,255 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,925 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,306 |
| Countries in the Alps | 0 | - | 4.87 | 117,572 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,047 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,211 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,364 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,902 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,013 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,391 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,176 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,120 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,923 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,485 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,441 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,300 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,864 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,126 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,151 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,016 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,003 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,525 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,419 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,927 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,043 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,933 |
| Largest Countries By Category | 0 | - | 4.97 | 157,519 |
| Countries by Countries | 0 | - | 4.96 | 62,767 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,100 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,134 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,453 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,257 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.97 | 98,575 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,251 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,270 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,378 |
| Last Names by Country of Origin | 0 | - | 4.63 | 156,300 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,701 |
| Island Countries | 0 | - | 4.99 | 709,418 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,182 |
| Northernmost Countries | 0 | - | 4.99 | 360,125 |
| Countries of South America | 0 | - | 5.00 | 921,925 |
| Countries of Oceania | 0 | - | 5.00 | 1,049,782 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,863,932 |
| "Land" Countries | 0 | - | 4.98 | 335,606 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,571 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,976 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,866 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,582 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,247 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,373,938 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,930 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,740 |
| Countries with Megacities | 0 | - | 4.99 | 249,906 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,583 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,826 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,897 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,819 |
| Countries by Official Language | 0 | - | 4.95 | 194,490 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,331 |
| Countries in their Native Language | 0 | - | 4.99 | 198,055 |
| Independence from Whom | 0 | - | 4.99 | 211,157 |
| Subdivisions by Country | 0 | - | 4.86 | 50,256 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,585 |
| Megadiverse Countries | 0 | - | 4.96 | 134,712 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,177 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,150 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,710 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,994 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,629 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,326 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,857 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,780 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,453 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,943 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,735 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,669 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,910 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,741 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,078 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,282 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,978 |
| World Map Quiz | 0 | - | 4.81 | 64,390 |
| Countries that Produce the Most Beer | 0 | - | 4.85 | 130,331 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,182 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,952 |
| Countries by Founding Story | 0 | - | 4.95 | 76,998 |
| Countries by Road Signs | 0 | - | 4.98 | 53,580 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,350 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,846 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,562 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,112 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,445 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,621 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,765 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,221 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,223 |
| Widest Countries East to West | 0 | - | 4.92 | 129,297 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,368 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,862 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,974 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,459 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,136 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,480 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,207 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,712 |
| Countries with Double Letters | 0 | - | 4.97 | 94,951 |
| Countries that End in N | 0 | - | 4.95 | 169,626 |
| Countries with Five Letters | 0 | - | 4.96 | 278,928 |
| Countries with Six Letters | 0 | - | 4.94 | 212,295 |
| Countries with W | 0 | - | 4.97 | 159,407 |
| Countries with Z | 0 | - | 4.98 | 289,631 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,622 |
| Countries That End in U | 0 | - | 4.95 | 120,358 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,641 |
| Countries that End in O | 0 | - | 4.92 | 159,150 |
| Countries that End in R | 0 | - | 4.87 | 118,688 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,472 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,190 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,025 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,028 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,610 |
| Countries That End in Y | 0 | - | 4.90 | 185,606 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,127 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,333 |
| Countries that End in I | 0 | - | 4.94 | 134,823 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,974 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,537 |
| Countries That End in NIA | 0 | - | 4.92 | 109,459 |
| Countries That End in BIA | 0 | - | 4.93 | 148,776 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,631 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,991 |
| Countries That End in RIA | 0 | - | 4.93 | 126,469 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,564 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,500 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,120 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,460 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,024 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,273 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,611 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,164 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,051 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,160 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,741 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,448 |
| Countries that End in L | 0 | - | 4.94 | 156,487 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,707 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,142 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,798 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,669 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,723 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,627 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,042 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,540 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,014 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,494 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,501 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,924 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.80 | 108,340 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,574 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,611 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 259,629 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,675 |
| Name a Valid African Country | 0 | - | 4.98 | 153,669 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,221 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,185 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,440 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,819,821 |
| One Border Countries | 0 | - | 4.98 | 467,280 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,611,519 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,683 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,239 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,453 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,232 |
