| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,623,390 |
| Countries by Languages in 90 Seconds | 0 | - | 4.94 | 720,765 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,459,361 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,101,683 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 450,853 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 165,750 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 118,386 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,515 |
| Countries of Africa | 0 | - | 5.00 | 2,537,243 |
| Countries with Four Letters | 0 | - | 4.99 | 422,458 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,598 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,613 |
| Landlocked Countries | 0 | - | 4.99 | 420,527 |
| Countries of the World - One Minute Sprint | 0 | - | 4.36 | 976,794 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 279,387 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 200,682 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 182,481 |
| Country Chain | 0 | - | 4.96 | 217,101 |
| Countries by Emojis | 0 | - | 4.99 | 239,717 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 55,936 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 320,676 |
| Islands by Country #1 | 0 | - | 4.88 | 175,290 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,528 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,887 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,726 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,767,585 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 216,756 |
| Name a Valid Country #3 | 0 | - | 4.99 | 263,039 |
| Name a Valid Country #1 | 0 | - | 4.99 | 289,906 |
| Name a Valid Country #2 | 0 | - | 4.98 | 250,721 |
| Name a Valid Country #4 | 0 | - | 4.97 | 255,593 |
| Name a Valid Country #5 | 0 | - | 4.99 | 207,004 |
| Name a Valid Country #6 | 0 | - | 4.94 | 129,444 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,708 |
| Himalayan Countries | 0 | - | 4.95 | 138,084 |
| Andean Countries | 0 | - | 4.95 | 84,263 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,488 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,327 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,119 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,561 |
| Danube Countries | 0 | - | 4.97 | 71,834 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,792 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,234 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,970 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,423 |
| European Landlocked Countries | 0 | - | 4.99 | 146,964 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,373 |
| Countries with the Most Species | 0 | - | 4.99 | 103,090 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,530 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,506 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,658 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,444 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,115 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,504 |
| Countries in the Alps | 0 | - | 4.87 | 117,956 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,445 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,709 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,548 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,454 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,306 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,831 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,468 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,339 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,076 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,702 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,567 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,420 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,070 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,349 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,364 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,541 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,179 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,689 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,822 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,170 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,664 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,109 |
| Largest Countries By Category | 0 | - | 4.97 | 157,927 |
| Countries by Countries | 0 | - | 4.97 | 63,012 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,463 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,216 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,509 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,508 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,283 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,041 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,231 |
| Island Countries | 0 | - | 4.99 | 710,388 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,047,871 |
| Northernmost Countries | 0 | - | 4.99 | 361,220 |
| Countries of South America | 0 | - | 5.00 | 925,106 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,028 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,871,912 |
| "Land" Countries | 0 | - | 4.98 | 336,385 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,934 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,201 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,127 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,754 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,470 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,379,666 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,698 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,210 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,112 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 225,080 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,214 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,837 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,091 |
| Random Countries by Borders | 0 | - | 4.99 | 82,441 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,068 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.95 | 239,848 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,465 |
| Countries with Megacities | 0 | - | 4.99 | 263,413 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,301 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,242 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,598 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,284 |
| Countries by Official Language | 0 | - | 4.95 | 194,937 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,953 |
| Countries in their Native Language | 0 | - | 4.99 | 198,461 |
| Independence from Whom | 0 | - | 4.99 | 211,717 |
| Subdivisions by Country | 0 | - | 4.86 | 50,361 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,984 |
| Megadiverse Countries | 0 | - | 4.96 | 134,882 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,798 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,259 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,846 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,060 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,914 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,482 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,221 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,937 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,565 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,042 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,344 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,794 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,095 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,870 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,253 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,416 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,672 |
| World Map Quiz | 0 | - | 4.81 | 64,862 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 137,949 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,414 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,198 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,784 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,094 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,832 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,774 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,725 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,855 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,128 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,353 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,434 |
| Widest Countries East to West | 0 | - | 4.92 | 129,505 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,416 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,166 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,063 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,642 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,413 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,707 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,311 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,764 |
| Countries with Double Letters | 0 | - | 4.97 | 95,400 |
| Countries that End in N | 0 | - | 4.95 | 170,436 |
| Countries with Five Letters | 0 | - | 4.96 | 281,382 |
| Countries with Six Letters | 0 | - | 4.94 | 212,847 |
| Countries with W | 0 | - | 4.97 | 159,732 |
| Countries with Z | 0 | - | 4.98 | 290,658 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,997 |
| Countries That End in U | 0 | - | 4.95 | 120,528 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,019 |
| Countries that End in O | 0 | - | 4.92 | 159,295 |
| Countries that End in R | 0 | - | 4.87 | 118,810 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,582 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,632 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,340 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,227 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,846 |
| Countries That End in Y | 0 | - | 4.91 | 185,731 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,542 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,629 |
| Countries that End in I | 0 | - | 4.94 | 134,961 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,743 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,674 |
| Countries That End in NIA | 0 | - | 4.92 | 109,634 |
| Countries That End in BIA | 0 | - | 4.93 | 148,989 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,891 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,215 |
| Countries That End in RIA | 0 | - | 4.93 | 126,654 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,787 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,127 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,432 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,817 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,348 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,425 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,808 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,362 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,306 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,291 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,016 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,735 |
