| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,614,806 |
| Countries by Languages in 90 Seconds | 0 | - | 4.94 | 719,041 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,490 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,078 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,098,410 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,883 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 165,104 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,813 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,188 |
| Countries of Africa | 0 | - | 5.00 | 2,530,389 |
| Countries with Four Letters | 0 | - | 4.99 | 421,563 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,182 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,247 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,330,134 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 278,912 |
| Landlocked Countries | 0 | - | 4.99 | 418,885 |
| Countries of the World - One Minute Sprint | 0 | - | 4.36 | 975,058 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,829 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 199,462 |
| Top Five Countries By Category #3 | 0 | - | 4.81 | 170,681 |
| Country Chain | 0 | - | 4.96 | 216,814 |
| Countries by Emojis | 0 | - | 4.99 | 238,689 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 55,717 |
| Islands by Country #1 | 0 | - | 4.88 | 175,110 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,374 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,716 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,624 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,756,506 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 215,987 |
| Name a Valid Country #3 | 0 | - | 4.99 | 262,498 |
| Name a Valid Country #1 | 0 | - | 4.99 | 288,663 |
| Name a Valid Country #2 | 0 | - | 4.98 | 250,051 |
| Name a Valid Country #4 | 0 | - | 4.97 | 254,952 |
| Name a Valid Country #5 | 0 | - | 4.99 | 206,341 |
| Name a Valid Country #6 | 0 | - | 4.94 | 128,937 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,975 |
| Himalayan Countries | 0 | - | 4.94 | 137,404 |
| Andean Countries | 0 | - | 4.95 | 83,923 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,221 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,637 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,824 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,343 |
| Danube Countries | 0 | - | 4.97 | 71,653 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,540 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,048 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,638 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,724 |
| European Landlocked Countries | 0 | - | 4.99 | 146,771 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,126 |
| Countries with the Most Species | 0 | - | 4.99 | 102,905 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,260 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,430 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,585 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,560 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,930 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,298 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,985 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,357 |
| Countries in the Alps | 0 | - | 4.87 | 117,683 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,126 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,356 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,411 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,979 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,087 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,507 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,278 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,181 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,963 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,548 |
| 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 | 79,183 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,203 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,170 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,058 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,946 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,568 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,511 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,340 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,214 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,993 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,635 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,294 |
| Largest Countries By Category | 0 | - | 4.97 | 157,626 |
| Countries by Countries | 0 | - | 4.96 | 62,832 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 235,525 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 224,527 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 191,785 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,202 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,534 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,158 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,319 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,988 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 135,323 |
| Countries that Start with A | 0 | - | 4.98 | 2,158,922 |
| Countries that Start with B | 0 | - | 4.95 | 2,290,920 |
| Countries that Start with C | 0 | - | 4.96 | 1,819,227 |
| Countries that Start with D | 0 | - | 4.96 | 707,638 |
| Countries that Start with E | 0 | - | 4.95 | 1,374,862 |
| Countries that Start with G | 0 | - | 4.97 | 1,500,520 |
| Countries that Start with H | 0 | - | 4.96 | 603,092 |
| Countries that Start with I | 0 | - | 4.92 | 1,286,183 |
| Countries that Start with J | 0 | - | 4.98 | 600,945 |
| Countries that Start with K | 0 | - | 4.97 | 814,127 |
| Countries that Start with L | 0 | - | 4.98 | 1,088,916 |
| Countries that Start with N | 0 | - | 4.93 | 1,115,855 |
| Countries that Start with P | 0 | - | 4.94 | 1,214,363 |
| Countries that Start with S | 0 | - | 4.98 | 1,752,415 |
| Countries that Start with T | 0 | - | 4.90 | 1,008,485 |
| Countries that Start with U | 0 | - | 4.97 | 903,376 |
| Countries that Start with V | 0 | - | 4.98 | 608,419 |
| Countries that Start with F | 0 | - | 4.83 | 616,310 |
| Countries that Start with M | 0 | - | 4.97 | 1,379,650 |
| Random Countries by Borders | 0 | - | 4.99 | 82,281 |
| Random Name a Valid Country | 0 | - | 4.99 | 204,695 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.95 | 239,194 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,939 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,590 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,071 |
| Island Countries | 0 | - | 4.99 | 709,728 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,375,577 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,988 |
| Northernmost Countries | 0 | - | 4.99 | 360,436 |
| Countries of South America | 0 | - | 5.00 | 922,845 |
| Countries of Oceania | 0 | - | 5.00 | 1,050,911 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,866,171 |
| "Land" Countries | 0 | - | 4.98 | 335,782 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 382,292 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 137,284 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,187 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,716 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,012 |
| Countries with Megacities | 0 | - | 4.99 | 259,521 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,871 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,984 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,156 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,987 |
| Countries by Official Language | 0 | - | 4.95 | 194,638 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,512 |
| Countries in their Native Language | 0 | - | 4.99 | 198,176 |
| Independence from Whom | 0 | - | 4.99 | 211,295 |
| Subdivisions by Country | 0 | - | 4.86 | 50,286 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,694 |
| Megadiverse Countries | 0 | - | 4.96 | 134,760 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,537 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,181 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,752 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,016 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,706 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,378 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,967 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,842 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,483 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,987 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,943 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,711 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,990 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,770 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,149 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,324 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,177 |
| World Map Quiz | 0 | - | 4.81 | 64,509 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,569 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,027 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,486 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,923 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,632 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,312 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,515 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,667 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,822 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,258 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,279 |
| Widest Countries East to West | 0 | - | 4.92 | 129,367 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,381 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,954 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,990 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,507 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,214 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,541 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,230 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,725 |
| Countries with Double Letters | 0 | - | 4.97 | 95,079 |
| Countries that End in N | 0 | - | 4.95 | 169,978 |
| Countries with Five Letters | 0 | - | 4.96 | 280,147 |
| Countries with Six Letters | 0 | - | 4.94 | 212,464 |
| Countries with W | 0 | - | 4.97 | 159,517 |
| Countries with Z | 0 | - | 4.98 | 289,790 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,731 |
| Countries That End in U | 0 | - | 4.95 | 120,407 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,742 |
| Countries that End in O | 0 | - | 4.92 | 159,191 |
| Countries that End in R | 0 | - | 4.87 | 118,731 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,508 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,322 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,097 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,075 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,658 |
| Countries That End in Y | 0 | - | 4.90 | 185,647 |
