| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,642,948 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 736,768 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,171 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,478 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,731,668 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,109,256 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 452,446 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 167,224 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 119,622 |
| Anagram Chain - Countries | 0 | - | 4.98 | 117,185 |
| Countries with Four Letters | 0 | - | 4.99 | 424,763 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,486 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 65,360 |
| Landlocked Countries | 0 | - | 4.99 | 423,815 |
| Countries of the World - One Minute Sprint | 0 | - | 4.36 | 980,717 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 280,403 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,562 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 183,951 |
| Country Chain | 0 | - | 4.96 | 217,960 |
| Countries by Emojis | 0 | - | 4.99 | 241,180 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,351 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 322,701 |
| Islands by Country #1 | 0 | - | 4.90 | 175,825 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,999 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,346 |
| Regions of Countries #3 | 0 | - | 4.85 | 91,193 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,792,046 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,532 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,070 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,266 |
| Name a Valid Country #3 | 0 | - | 4.99 | 264,932 |
| Name a Valid Country #1 | 0 | - | 4.99 | 293,459 |
| Name a Valid Country #2 | 0 | - | 4.98 | 252,982 |
| Name a Valid Country #4 | 0 | - | 4.97 | 258,022 |
| Name a Valid Country #5 | 0 | - | 4.99 | 208,977 |
| Name a Valid Country #6 | 0 | - | 4.94 | 139,829 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,342 |
| Himalayan Countries | 0 | - | 4.94 | 139,520 |
| Andean Countries | 0 | - | 4.94 | 85,058 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,244 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,445 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,803 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,116 |
| Danube Countries | 0 | - | 4.97 | 72,209 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,304 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,624 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,706 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,213 |
| European Landlocked Countries | 0 | - | 4.99 | 147,376 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,975 |
| Countries with the Most Species | 0 | - | 4.99 | 103,421 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,113 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,681 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,792 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,693 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,439 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,850 |
| Countries in the Alps | 0 | - | 4.87 | 118,490 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,072 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,451 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,811 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,812 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,747 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,097 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,917 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,672 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,297 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,017 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,761 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,630 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,386 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,639 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,721 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,374 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,475 |
| Countries that Host the Most Refugees | 0 | - | 4.97 | 65,224 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,352 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,911 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,653 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,381 |
| Largest Countries By Category | 0 | - | 4.97 | 158,546 |
| Countries by Countries | 0 | - | 4.96 | 63,439 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,006 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,348 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,906 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,233 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,097 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,543 |
| Island Countries | 0 | - | 4.99 | 711,755 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,052,423 |
| Northernmost Countries | 0 | - | 4.99 | 363,067 |
| Countries of South America | 0 | - | 5.00 | 929,956 |
| Countries of Oceania | 0 | - | 5.00 | 1,060,240 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,883,328 |
| "Land" Countries | 0 | - | 4.98 | 337,880 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,463 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,537 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,484 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,972 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,742 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,388,491 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 237,370 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 226,416 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 193,128 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,511 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,399 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 238,166 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 136,967 |
| Random Countries by Borders | 0 | - | 4.99 | 82,852 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,957 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.95 | 241,702 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,442 |
| Countries with Megacities | 0 | - | 4.99 | 265,865 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,235 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,752 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,496 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,846 |
| Countries by Official Language | 0 | - | 4.95 | 195,638 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,065 |
| Countries in their Native Language | 0 | - | 4.99 | 199,413 |
| Independence from Whom | 0 | - | 4.99 | 212,559 |
| Subdivisions by Country | 0 | - | 4.87 | 50,534 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,070 |
| Megadiverse Countries | 0 | - | 4.96 | 135,154 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,438 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,460 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,339 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,163 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,374 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,698 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,741 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,471 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,748 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,207 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,095 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,230 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,331 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,058 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,476 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,602 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,825 |
| World Map Quiz | 0 | - | 4.81 | 65,380 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 139,323 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,266 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,531 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,654 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,674 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,331 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,959 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,193 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,313 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,530 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,584 |
| Tallest Countries North to South | 0 | - | 4.85 | 128,889 |
| Widest Countries East to West | 0 | - | 4.92 | 130,187 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,529 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,022 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,439 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,932 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,806 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,082 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,447 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,853 |
| Countries with Double Letters | 0 | - | 4.96 | 96,679 |
| Countries that End in N | 0 | - | 4.95 | 171,559 |
| Countries with Five Letters | 0 | - | 4.96 | 283,206 |
| Countries with Six Letters | 0 | - | 4.94 | 214,021 |
| Countries with W | 0 | - | 4.96 | 160,641 |
| Countries with Z | 0 | - | 4.98 | 291,963 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,005 |
| Countries That End in U | 0 | - | 4.95 | 121,020 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,793 |
| Countries that End in O | 0 | - | 4.92 | 159,671 |
| Countries that End in R | 0 | - | 4.87 | 119,073 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,831 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,468 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,935 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,650 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,575 |
| Countries That End in Y | 0 | - | 4.91 | 185,999 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,188 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,073 |
| Countries that End in I | 0 | - | 4.94 | 135,215 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,378 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,930 |
| Countries That End in NIA | 0 | - | 4.92 | 109,923 |
| Countries That End in BIA | 0 | - | 4.93 | 149,401 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,336 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,620 |
| Countries That End in RIA | 0 | - | 4.93 | 126,938 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,216 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,101 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,954 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,393 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,932 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,691 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,188 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,490 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,722 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,547 |
