| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,656,027 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 743,962 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,591 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,794 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,126,471 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 453,808 |
| Solve the Secret Country #1 | 0 | - | 4.93 | 168,441 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 120,627 |
| Anagram Chain - Countries | 0 | - | 4.98 | 117,802 |
| Countries of Africa | 0 | - | 5.00 | 2,562,028 |
| Countries with Four Letters | 0 | - | 4.99 | 426,078 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 71,184 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 66,054 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,920,316 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 281,040 |
| Landlocked Countries | 0 | - | 4.99 | 426,554 |
| Countries of the World - One Minute Sprint | 0 | - | 4.36 | 982,958 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 324,015 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 202,164 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 184,531 |
| Country Chain | 0 | - | 4.96 | 218,545 |
| Countries by Emojis | 0 | - | 4.99 | 242,624 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,642 |
| Islands by Country #1 | 0 | - | 4.90 | 176,424 |
| 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 | 91,430 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,807,882 |
| Name a Valid Country #3 | 0 | - | 4.99 | 266,184 |
| Name a Valid Country #1 | 0 | - | 4.99 | 295,642 |
| 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 | 210,220 |
| Name a Valid Country #6 | 0 | - | 4.95 | 145,437 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,546 |
| Himalayan Countries | 0 | - | 4.93 | 140,483 |
| Andean Countries | 0 | - | 4.94 | 85,619 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,750 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,220 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,317 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,549 |
| Danube Countries | 0 | - | 4.97 | 72,471 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,681 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,902 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,264 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,737 |
| European Landlocked Countries | 0 | - | 4.99 | 147,671 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,399 |
| 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 | 47,913 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,819 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,770 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,876 |
| 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 | 102,793 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,995 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,011 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,091 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,039 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,322 |
| 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 | 58,464 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,238 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,915 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,782 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,612 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,850 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,949 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,995 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,659 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,711 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 75,584 |
| 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 | 245,954 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,307 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,553 |
| 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 | 158,951 |
| Countries by Countries | 0 | - | 4.97 | 63,711 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 238,348 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 227,244 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 193,856 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,333 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 124,201 |
| 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 | 137,618 |
| Countries that Start with A | 0 | - | 4.98 | 2,176,868 |
| Countries that Start with B | 0 | - | 4.95 | 2,307,558 |
| Countries that Start with C | 0 | - | 4.96 | 1,832,322 |
| Countries that Start with D | 0 | - | 4.96 | 717,026 |
| Countries that Start with E | 0 | - | 4.95 | 1,385,792 |
| Countries that Start with G | 0 | - | 4.97 | 1,512,269 |
| Countries that Start with H | 0 | - | 4.96 | 609,993 |
| Countries that Start with I | 0 | - | 4.92 | 1,295,112 |
| Countries that Start with J | 0 | - | 4.98 | 607,389 |
| Countries that Start with K | 0 | - | 4.97 | 821,201 |
| Countries that Start with L | 0 | - | 4.98 | 1,097,388 |
| Countries that Start with N | 0 | - | 4.93 | 1,124,444 |
| Countries that Start with P | 0 | - | 4.94 | 1,222,586 |
| Countries that Start with S | 0 | - | 4.98 | 1,763,931 |
| Countries that Start with T | 0 | - | 4.90 | 1,015,342 |
| Countries that Start with U | 0 | - | 4.97 | 908,815 |
| Countries that Start with V | 0 | - | 4.98 | 612,254 |
| Countries that Start with F | 0 | - | 4.83 | 621,624 |
| Countries that Start with M | 0 | - | 4.97 | 1,388,873 |
| Random Countries by Borders | 0 | - | 4.99 | 83,140 |
| Random Name a Valid Country | 0 | - | 4.99 | 206,760 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.96 | 243,121 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,971 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,853 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,000 |
| Island Countries | 0 | - | 4.99 | 712,760 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,395,274 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,379 |
| Northernmost Countries | 0 | - | 4.99 | 364,287 |
| Countries of South America | 0 | - | 5.00 | 933,408 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,403 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,891,000 |
| "Land" Countries | 0 | - | 4.98 | 338,545 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 388,339 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 140,156 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,984 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,707 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,320 |
| Countries with Megacities | 0 | - | 4.99 | 267,464 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,986 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,228 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,315 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,332 |
| Countries by Official Language | 0 | - | 4.95 | 196,119 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,783 |
| Countries in their Native Language | 0 | - | 4.99 | 199,842 |
| Independence from Whom | 0 | - | 4.99 | 213,225 |
| Subdivisions by Country | 0 | - | 4.87 | 50,642 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,559 |
| Megadiverse Countries | 0 | - | 4.96 | 145,041 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,032 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,555 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,748 |
| 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 | 62,889 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,183 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,591 |
| 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 | 108,432 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,464 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,175 |
| 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 | 159,552 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,757 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,378 |
| 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 | 111,483 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,604 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,788 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,725 |
| 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 | 187,305 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,535 |
| 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 | 128,534 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,517 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,906 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 338,093 |
| Countries with Double Letters | 0 | - | 4.96 | 97,222 |
| Countries that End in N | 0 | - | 4.95 | 172,314 |
| Countries with Five Letters | 0 | - | 4.96 | 284,186 |
| Countries with Six Letters | 0 | - | 4.94 | 214,634 |
| Countries with W | 0 | - | 4.96 | 161,054 |
| Countries with Z | 0 | - | 4.98 | 292,617 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,394 |
| 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 | 160,268 |
| 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 | 209,966 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,226 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,880 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,809 |
| Countries That End in Y | 0 | - | 4.91 | 186,114 |
