| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,604,298 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,094,329 |
| Countries but all Vowels are Changed to O | 0 | - | 4.93 | 68,660 |
| Empty World Map without 20 Random Countries | 0 | - | 4.93 | 136,388 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 380,603 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 215,013 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 138,245 |
| Random Countries by Borders | 0 | - | 4.99 | 81,946 |
| Random Name a Valid Country | 0 | - | 4.99 | 204,104 |
| Random Capital to Country | 0 | - | 4.99 | 2,584,246 |
| Random World Capitals on a Map | 0 | - | 4.93 | 133,800 |
| Random Country to Capital | 0 | - | 4.98 | 914,978 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,165,016 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,085 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,385 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,166 |
| Anagram Chain - Countries | 0 | - | 4.98 | 115,824 |
| Countries with Four Letters | 0 | - | 4.99 | 420,340 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,725 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,851 |
| Capitals in Random Squares of the World Map | 0 | - | 4.91 | 75,136 |
| Landlocked Countries | 0 | - | 4.99 | 416,675 |
| Random Countries with Letters Missing | 0 | - | 4.51 | 94,097 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 278,281 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 199,003 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 170,316 |
| Country Chain | 0 | - | 4.96 | 216,414 |
| Countries by Emojis | 0 | - | 4.99 | 237,800 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,447 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 318,661 |
| Islands by Country #1 | 0 | - | 4.87 | 174,822 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,179 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,531 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,501 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,740,682 |
| Name a Valid Country #3 | 0 | - | 4.99 | 261,686 |
| Name a Valid Country #1 | 0 | - | 4.99 | 287,008 |
| Name a Valid Country #2 | 0 | - | 4.98 | 249,031 |
| Name a Valid Country #4 | 0 | - | 4.97 | 254,023 |
| Name a Valid Country #5 | 0 | - | 4.99 | 204,761 |
| Name a Valid Country #6 | 0 | - | 4.94 | 128,286 |
| Name a Valid Country #7 | 0 | - | 4.91 | 128,238 |
| Name a Valid Country #8 | 0 | - | 4.85 | 97,594 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 716,147 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,945 |
| Himalayan Countries | 0 | - | 4.95 | 136,509 |
| Andean Countries | 0 | - | 4.95 | 83,493 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,756 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,009 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,427 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,030 |
| Danube Countries | 0 | - | 4.97 | 71,433 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,218 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,850 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,159 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,127 |
| European Landlocked Countries | 0 | - | 4.99 | 146,130 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,765 |
| Countries with the Most Species | 0 | - | 4.99 | 101,620 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,899 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,329 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,510 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,161 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,809 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,192 |
| Countries in the Alps | 0 | - | 4.86 | 117,326 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,905 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,898 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,253 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,741 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,824 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,255 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,987 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,994 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,807 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,331 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,367 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,203 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,730 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,998 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,005 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,717 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,896 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,430 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,248 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,016 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,569 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,829 |
| Largest Countries By Category | 0 | - | 4.97 | 157,258 |
| Countries by Countries | 0 | - | 4.96 | 62,593 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,872 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,081 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,409 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,085 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,854 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,834 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,794 |
| Island Countries | 0 | - | 4.99 | 708,814 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,363 |
| Northernmost Countries | 0 | - | 4.99 | 359,390 |
| Countries of South America | 0 | - | 5.00 | 919,693 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,685 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,858,805 |
| "Land" Countries | 0 | - | 4.98 | 334,609 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,904 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,701 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,728 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,516 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,115 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,370,491 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,192 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,909 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 234,691 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 223,809 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 191,202 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,080 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 78,253 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,832 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,276 |
| Countries with Megacities | 0 | - | 4.99 | 248,949 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,129 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,545 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,484 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,502 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 88,947 |
| Countries by Official Language | 0 | - | 4.95 | 194,010 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,548 |
| Countries in their Native Language | 0 | - | 4.99 | 197,635 |
| Independence from Whom | 0 | - | 4.99 | 210,807 |
| Subdivisions by Country | 0 | - | 4.86 | 50,197 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,331 |
| Megadiverse Countries | 0 | - | 4.96 | 134,541 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,833 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,075 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,628 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,948 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,442 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,213 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,586 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,548 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,371 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,807 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,163 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,579 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,687 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,642 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,859 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,202 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,102 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,567 |
| World Map Quiz | 0 | - | 4.81 | 64,094 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,387 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,696 |
| Countries by Founding Story | 0 | - | 4.95 | 76,874 |
| Countries by Road Signs | 0 | - | 4.98 | 53,417 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,061 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,668 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,397 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,713 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,268 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,462 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,628 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,149 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,637 |
| Widest Countries East to West | 0 | - | 4.92 | 129,139 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,329 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,654 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,921 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,959 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,979 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,359 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,100 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,675 |
| Countries with Double Letters | 0 | - | 4.96 | 94,129 |
| Countries that End in N | 0 | - | 4.95 | 165,658 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,579 |
| Countries with Six Letters | 0 | - | 4.93 | 211,134 |
| Countries with W | 0 | - | 4.97 | 158,806 |
| Countries with Z | 0 | - | 4.98 | 288,753 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,026 |
| Countries That End in U | 0 | - | 4.95 | 119,912 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,155 |
| Countries that End in O | 0 | - | 4.92 | 158,861 |
| Countries that End in R | 0 | - | 4.87 | 118,509 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,284 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,749 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,733 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,809 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,373 |
| Countries That End in Y | 0 | - | 4.90 | 185,420 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,830 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,089 |
| Countries that End in I | 0 | - | 4.94 | 134,667 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,690 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,408 |
| Countries That End in NIA | 0 | - | 4.92 | 109,295 |
| Countries That End in BIA | 0 | - | 4.93 | 148,564 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,423 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,768 |
| Countries That End in RIA | 0 | - | 4.93 | 126,345 |
