| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,656,077 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 743,977 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,593 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,795 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,126,501 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 453,814 |
| Solve the Secret Country #1 | 0 | - | 4.93 | 168,445 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 120,631 |
| Anagram Chain - Countries | 0 | - | 4.98 | 117,803 |
| Countries of Africa | 0 | - | 5.00 | 2,562,049 |
| Countries with Four Letters | 0 | - | 4.99 | 426,083 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 71,185 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 66,055 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,920,840 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 281,044 |
| Landlocked Countries | 0 | - | 4.99 | 426,563 |
| Countries of the World - One Minute Sprint | 0 | - | 4.36 | 982,969 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 324,019 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 202,165 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 184,531 |
| Country Chain | 0 | - | 4.96 | 218,545 |
| Countries by Emojis | 0 | - | 4.99 | 242,631 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,642 |
| Islands by Country #1 | 0 | - | 4.90 | 176,425 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,292 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,609 |
| Regions of Countries #3 | 0 | - | 4.85 | 91,431 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,807,921 |
| Name a Valid Country #3 | 0 | - | 4.99 | 266,185 |
| Name a Valid Country #1 | 0 | - | 4.99 | 295,646 |
| Name a Valid Country #2 | 0 | - | 4.98 | 254,369 |
| Name a Valid Country #4 | 0 | - | 4.97 | 259,360 |
| Name a Valid Country #5 | 0 | - | 4.99 | 210,221 |
| Name a Valid Country #6 | 0 | - | 4.95 | 145,441 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,553 |
| Himalayan Countries | 0 | - | 4.93 | 140,487 |
| Andean Countries | 0 | - | 4.94 | 85,622 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,755 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,223 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,319 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,551 |
| Danube Countries | 0 | - | 4.97 | 72,472 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,684 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,903 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,269 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,739 |
| European Landlocked Countries | 0 | - | 4.99 | 147,671 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,400 |
| Countries with the Most Species | 0 | - | 4.99 | 103,605 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,510 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,791 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,914 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,822 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,770 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,877 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,616 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,072 |
| Countries in the Alps | 0 | - | 4.87 | 118,858 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,795 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,996 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,012 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,091 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,040 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,323 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,471 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,925 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,465 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,238 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,916 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,782 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,613 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,850 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,951 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,996 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,660 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,711 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 75,598 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,753 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,956 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,310 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,554 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 111,140 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,979 |
| Largest Countries By Category | 0 | - | 4.97 | 158,953 |
| Countries by Countries | 0 | - | 4.97 | 63,712 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 238,351 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 227,244 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 193,857 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,334 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 124,203 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,426 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,154 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,582 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 137,622 |
| Countries that Start with A | 0 | - | 4.98 | 2,176,890 |
| Countries that Start with B | 0 | - | 4.95 | 2,307,588 |
| Countries that Start with C | 0 | - | 4.96 | 1,832,343 |
| Countries that Start with D | 0 | - | 4.96 | 717,040 |
| Countries that Start with E | 0 | - | 4.95 | 1,385,804 |
| Countries that Start with G | 0 | - | 4.97 | 1,512,282 |
| Countries that Start with H | 0 | - | 4.96 | 609,999 |
| Countries that Start with I | 0 | - | 4.92 | 1,295,122 |
| Countries that Start with J | 0 | - | 4.98 | 607,394 |
| Countries that Start with K | 0 | - | 4.97 | 821,208 |
| Countries that Start with L | 0 | - | 4.98 | 1,097,396 |
| Countries that Start with N | 0 | - | 4.93 | 1,124,454 |
| Countries that Start with P | 0 | - | 4.94 | 1,222,598 |
| Countries that Start with S | 0 | - | 4.98 | 1,763,941 |
| Countries that Start with T | 0 | - | 4.90 | 1,015,349 |
| Countries that Start with U | 0 | - | 4.97 | 908,820 |
| Countries that Start with V | 0 | - | 4.98 | 612,260 |
| Countries that Start with F | 0 | - | 4.83 | 621,629 |
| Countries that Start with M | 0 | - | 4.97 | 1,388,884 |
| Random Countries by Borders | 0 | - | 4.99 | 83,141 |
| Random Name a Valid Country | 0 | - | 4.99 | 206,761 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.96 | 243,123 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,975 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,857 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,002 |
| Island Countries | 0 | - | 4.99 | 712,761 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,395,294 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,385 |
| Northernmost Countries | 0 | - | 4.99 | 364,290 |
| Countries of South America | 0 | - | 5.00 | 933,415 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,411 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,891,010 |
| "Land" Countries | 0 | - | 4.98 | 338,547 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 388,342 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 140,159 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,997 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,710 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,321 |
| Countries with Megacities | 0 | - | 4.99 | 267,466 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,987 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,228 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,318 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,332 |
| Countries by Official Language | 0 | - | 4.95 | 196,120 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,783 |
| Countries in their Native Language | 0 | - | 4.99 | 199,844 |
| Independence from Whom | 0 | - | 4.99 | 213,226 |
| Subdivisions by Country | 0 | - | 4.87 | 50,642 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,559 |
| Megadiverse Countries | 0 | - | 4.96 | 145,184 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,033 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,556 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,749 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,238 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,347 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,890 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,183 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,592 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,122 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,275 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,639 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,433 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,465 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,177 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,602 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,915 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,534 |
| World Map Quiz | 0 | - | 4.81 | 65,824 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,555 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,758 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,380 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,156 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,621 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,733 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,484 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,604 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,789 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,728 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,847 |
| Widest Countries East to West | 0 | - | 4.92 | 130,778 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,616 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,306 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,536 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,098 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,040 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,535 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,517 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,908 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 338,094 |
| Countries with Double Letters | 0 | - | 4.96 | 97,227 |
| Countries that End in N | 0 | - | 4.95 | 172,326 |
| Countries with Five Letters | 0 | - | 4.96 | 284,193 |
| Countries with Six Letters | 0 | - | 4.94 | 214,635 |
| Countries with W | 0 | - | 4.96 | 161,057 |
| Countries with Z | 0 | - | 4.98 | 292,621 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,396 |
| Countries That End in U | 0 | - | 4.95 | 121,248 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,204 |
| Countries that End in O | 0 | - | 4.92 | 160,269 |
| Countries that End in R | 0 | - | 4.87 | 119,216 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,979 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,967 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,475 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,883 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,817 |
| Countries That End in Y | 0 | - | 4.91 | 186,114 |
