| Word Scramble - Countries | 0 | - | 4.86 | 2,096,302 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 215,519 |
| Random Countries by Borders | 0 | - | 4.99 | 82,167 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,609,444 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 381,286 |
| Random Capital to Country | 0 | - | 4.99 | 2,586,113 |
| Random Country to Capital | 0 | - | 4.98 | 916,624 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,245,283 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,510 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,718 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,479 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,013 |
| Countries with Four Letters | 0 | - | 4.99 | 421,025 |
| Historical City to Country | 0 | - | 4.84 | 78,380 |
| Countries but all Vowels are Changed to O | 0 | - | 4.93 | 68,935 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,052 |
| Landlocked Countries | 0 | - | 4.99 | 417,677 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 199,258 |
| Top Five Countries By Category #3 | 0 | - | 4.81 | 170,502 |
| Country Chain | 0 | - | 4.96 | 216,622 |
| Countries by Emojis | 0 | - | 4.99 | 238,226 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,555 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,255 |
| Islands by Country #1 | 0 | - | 4.88 | 174,964 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,256 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,602 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,567 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,748,677 |
| Name a Valid Country #3 | 0 | - | 4.99 | 262,137 |
| Name a Valid Country #1 | 0 | - | 4.99 | 287,857 |
| Name a Valid Country #2 | 0 | - | 4.98 | 249,604 |
| Name a Valid Country #4 | 0 | - | 4.97 | 254,550 |
| Name a Valid Country #5 | 0 | - | 4.99 | 205,832 |
| Name a Valid Country #6 | 0 | - | 4.94 | 128,648 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 717,656 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,384 |
| Himalayan Countries | 0 | - | 4.94 | 136,903 |
| Andean Countries | 0 | - | 4.95 | 83,671 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,934 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,262 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,596 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,182 |
| Danube Countries | 0 | - | 4.97 | 71,526 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,363 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,942 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,404 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,462 |
| European Landlocked Countries | 0 | - | 4.99 | 146,333 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,956 |
| Countries with the Most Species | 0 | - | 4.99 | 102,621 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,078 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,376 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,550 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,228 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,885 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,268 |
| Countries in the Alps | 0 | - | 4.86 | 117,494 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,004 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,126 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,334 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,851 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,953 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,366 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,124 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,081 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,884 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,431 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,419 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,270 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,826 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,097 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,108 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,940 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,973 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,503 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,365 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,685 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,884 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,910 |
| Largest Countries By Category | 0 | - | 4.97 | 157,445 |
| Countries by Countries | 0 | - | 4.96 | 62,719 |
| Country Flags with the Most White | 0 | - | 4.87 | 138,030 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,120 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,199 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,914 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,268 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,462 |
| Island Countries | 0 | - | 4.99 | 709,261 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,711 |
| Northernmost Countries | 0 | - | 4.99 | 359,928 |
| Countries of South America | 0 | - | 5.00 | 921,270 |
| Countries of Oceania | 0 | - | 5.00 | 1,048,979 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,862,468 |
| "Land" Countries | 0 | - | 4.98 | 335,441 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,413 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,835 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,831 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,562 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,207 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,372,962 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,347 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,997 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 235,080 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 224,166 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 191,487 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,330 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,909 |
| Random Name a Valid Country | 0 | - | 4.99 | 204,399 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,625 |
| Countries with Megacities | 0 | - | 4.99 | 249,664 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,464 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,752 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,799 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,720 |
| Random World Capitals on a Map | 0 | - | 4.93 | 134,120 |
| Countries by Official Language | 0 | - | 4.95 | 194,405 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,229 |
| Countries in their Native Language | 0 | - | 4.99 | 197,971 |
| Independence from Whom | 0 | - | 4.99 | 211,068 |
| Subdivisions by Country | 0 | - | 4.86 | 50,240 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,516 |
| Megadiverse Countries | 0 | - | 4.96 | 134,680 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,101 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,136 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,692 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,980 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,564 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,299 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,782 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,703 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,432 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,850 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,585 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,646 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,769 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,712 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,946 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,271 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,858 |
| World Map Quiz | 0 | - | 4.81 | 64,308 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 136,833 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,941 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,887 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,270 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,798 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,521 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,009 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,394 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,578 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,733 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,202 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,191 |
| Widest Countries East to West | 0 | - | 4.92 | 129,252 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,354 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,793 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,964 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,425 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,087 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,445 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,178 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,704 |
| Countries with Double Letters | 0 | - | 4.97 | 94,791 |
| Countries that End in N | 0 | - | 4.95 | 169,261 |
| Countries with Five Letters | 0 | - | 4.96 | 276,964 |
| Countries with Six Letters | 0 | - | 4.94 | 212,134 |
| Countries with W | 0 | - | 4.97 | 159,301 |
| Countries with Z | 0 | - | 4.98 | 289,486 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,496 |
| Countries That End in U | 0 | - | 4.95 | 120,290 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,525 |
| Countries that End in O | 0 | - | 4.92 | 159,104 |
| Countries that End in R | 0 | - | 4.87 | 118,653 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,435 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,096 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,952 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,971 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,559 |
| Countries That End in Y | 0 | - | 4.90 | 185,576 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,054 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,271 |
| Countries that End in I | 0 | - | 4.94 | 134,782 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,887 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,503 |
| Countries That End in NIA | 0 | - | 4.92 | 109,423 |
| Countries That End in BIA | 0 | - | 4.93 | 148,720 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,574 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,934 |
| Countries That End in RIA | 0 | - | 4.93 | 126,439 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,520 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,380 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,043 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,388 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,983 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,248 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,577 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,111 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,003 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,126 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,691 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,376 |
