| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,614,724 |
| Countries by Languages in 90 Seconds | 0 | - | 4.94 | 719,022 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,487 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,078 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,098,364 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,873 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 165,099 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,811 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,188 |
| Countries of Africa | 0 | - | 5.00 | 2,530,348 |
| Countries with Four Letters | 0 | - | 4.99 | 421,557 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,179 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,243 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,329,156 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 278,905 |
| Landlocked Countries | 0 | - | 4.99 | 418,866 |
| Countries of the World - One Minute Sprint | 0 | - | 4.36 | 975,044 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,814 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 199,461 |
| Top Five Countries By Category #3 | 0 | - | 4.81 | 170,678 |
| Country Chain | 0 | - | 4.96 | 216,813 |
| Countries by Emojis | 0 | - | 4.99 | 238,673 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 55,714 |
| Islands by Country #1 | 0 | - | 4.88 | 175,107 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,372 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,715 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,623 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,756,420 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 215,978 |
| Name a Valid Country #3 | 0 | - | 4.99 | 262,496 |
| Name a Valid Country #1 | 0 | - | 4.99 | 288,654 |
| Name a Valid Country #2 | 0 | - | 4.98 | 250,051 |
| Name a Valid Country #4 | 0 | - | 4.97 | 254,950 |
| Name a Valid Country #5 | 0 | - | 4.99 | 206,333 |
| Name a Valid Country #6 | 0 | - | 4.94 | 128,931 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,972 |
| Himalayan Countries | 0 | - | 4.94 | 137,393 |
| Andean Countries | 0 | - | 4.95 | 83,918 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,216 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,633 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,822 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,343 |
| Danube Countries | 0 | - | 4.97 | 71,651 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,537 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,048 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,631 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,720 |
| European Landlocked Countries | 0 | - | 4.99 | 146,770 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,125 |
| Countries with the Most Species | 0 | - | 4.99 | 102,902 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,259 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,429 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,585 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,556 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,930 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,296 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,982 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,356 |
| Countries in the Alps | 0 | - | 4.87 | 117,680 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,126 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,354 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,407 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,979 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,084 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,493 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,276 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,180 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,963 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,547 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,474 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,335 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,917 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,181 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,202 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,164 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,058 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,945 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,567 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,509 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,328 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,206 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,992 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,634 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,293 |
| Largest Countries By Category | 0 | - | 4.97 | 157,623 |
| Countries by Countries | 0 | - | 4.96 | 62,830 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 235,513 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 224,520 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 191,780 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,201 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,534 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,157 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,315 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,988 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 135,318 |
| Countries that Start with A | 0 | - | 4.98 | 2,158,898 |
| Countries that Start with B | 0 | - | 4.95 | 2,290,901 |
| Countries that Start with C | 0 | - | 4.96 | 1,819,207 |
| Countries that Start with D | 0 | - | 4.96 | 707,627 |
| Countries that Start with E | 0 | - | 4.95 | 1,374,845 |
| Countries that Start with G | 0 | - | 4.97 | 1,500,503 |
| Countries that Start with H | 0 | - | 4.96 | 603,078 |
| Countries that Start with I | 0 | - | 4.92 | 1,286,173 |
| Countries that Start with J | 0 | - | 4.98 | 600,937 |
| Countries that Start with K | 0 | - | 4.97 | 814,094 |
| Countries that Start with L | 0 | - | 4.98 | 1,088,902 |
| Countries that Start with N | 0 | - | 4.93 | 1,115,836 |
| Countries that Start with P | 0 | - | 4.94 | 1,214,347 |
| Countries that Start with S | 0 | - | 4.98 | 1,752,402 |
| Countries that Start with T | 0 | - | 4.90 | 1,008,479 |
| Countries that Start with U | 0 | - | 4.97 | 903,370 |
| Countries that Start with V | 0 | - | 4.98 | 608,414 |
| Countries that Start with F | 0 | - | 4.83 | 616,299 |
| Countries that Start with M | 0 | - | 4.97 | 1,379,630 |
| Random Countries by Borders | 0 | - | 4.99 | 82,279 |
| Random Name a Valid Country | 0 | - | 4.99 | 204,692 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.95 | 239,192 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,909 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,583 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,060 |
| Island Countries | 0 | - | 4.99 | 709,717 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,375,543 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,969 |
| Northernmost Countries | 0 | - | 4.99 | 360,427 |
| Countries of South America | 0 | - | 5.00 | 922,817 |
| Countries of Oceania | 0 | - | 5.00 | 1,050,878 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,866,119 |
| "Land" Countries | 0 | - | 4.98 | 335,782 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 382,283 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 137,280 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,166 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,704 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,005 |
| Countries with Megacities | 0 | - | 4.99 | 259,401 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,865 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,982 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,154 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,983 |
| Countries by Official Language | 0 | - | 4.95 | 194,634 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,511 |
| Countries in their Native Language | 0 | - | 4.99 | 198,172 |
| Independence from Whom | 0 | - | 4.99 | 211,288 |
| Subdivisions by Country | 0 | - | 4.86 | 50,286 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,690 |
| Megadiverse Countries | 0 | - | 4.96 | 134,756 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,535 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,180 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,749 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,015 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,704 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,377 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,964 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,838 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,479 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,986 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,939 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,708 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,989 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,769 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,146 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,323 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,174 |
| World Map Quiz | 0 | - | 4.81 | 64,507 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,562 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,025 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,485 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,923 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,631 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,311 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,513 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,666 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,821 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,258 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,277 |
| Widest Countries East to West | 0 | - | 4.92 | 129,365 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,380 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,952 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,989 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,506 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,213 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,539 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,229 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,725 |
| Countries with Double Letters | 0 | - | 4.97 | 95,077 |
| Countries that End in N | 0 | - | 4.95 | 169,969 |
| Countries with Five Letters | 0 | - | 4.96 | 280,129 |
| Countries with Six Letters | 0 | - | 4.94 | 212,462 |
| Countries with W | 0 | - | 4.97 | 159,515 |
| Countries with Z | 0 | - | 4.98 | 289,786 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,726 |
| Countries That End in U | 0 | - | 4.95 | 120,406 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,738 |
| Countries that End in O | 0 | - | 4.92 | 159,190 |
| Countries that End in R | 0 | - | 4.87 | 118,729 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,507 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,315 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,096 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,073 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,658 |
| Countries That End in Y | 0 | - | 4.90 | 185,646 |
