| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,603,760 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 716,038 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 278,254 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,157,149 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,094,187 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,029 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,349 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,136 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,809 |
| Countries with Four Letters | 0 | - | 4.99 | 420,271 |
| Countries but all Vowels are Changed to O | 0 | - | 4.93 | 68,639 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.95 | 238,082 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,824 |
| Landlocked Countries | 0 | - | 4.99 | 416,575 |
| Countries of the World - One Minute Sprint | 0 | - | 4.35 | 970,495 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,976 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 170,204 |
| Country Chain | 0 | - | 4.96 | 216,394 |
| Countries by Emojis | 0 | - | 4.99 | 237,768 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,430 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 318,598 |
| Islands by Country #1 | 0 | - | 4.87 | 174,814 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,173 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,517 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,496 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,740,119 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 214,967 |
| Name a Valid Country #3 | 0 | - | 4.99 | 261,641 |
| Name a Valid Country #1 | 0 | - | 4.99 | 286,912 |
| Name a Valid Country #2 | 0 | - | 4.98 | 248,974 |
| Name a Valid Country #4 | 0 | - | 4.97 | 253,968 |
| Name a Valid Country #5 | 0 | - | 4.99 | 204,647 |
| Name a Valid Country #6 | 0 | - | 4.94 | 128,252 |
| Monarchies Bordering Monarchies | 0 | - | 4.81 | 60,075 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,895 |
| Himalayan Countries | 0 | - | 4.95 | 136,469 |
| Andean Countries | 0 | - | 4.95 | 83,475 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,731 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,973 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,406 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,011 |
| Danube Countries | 0 | - | 4.97 | 71,388 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,199 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,841 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,140 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,102 |
| European Landlocked Countries | 0 | - | 4.99 | 146,123 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,751 |
| Countries with the Most Species | 0 | - | 4.99 | 101,376 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,886 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,328 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,506 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,153 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,801 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,181 |
| Countries in the Alps | 0 | - | 4.86 | 117,309 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,893 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,875 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,249 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,736 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,812 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,249 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,975 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,990 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,795 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,324 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,361 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,203 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,719 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,987 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,000 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,693 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,889 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,428 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,231 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,961 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,551 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,820 |
| Largest Countries By Category | 0 | - | 4.97 | 157,246 |
| Countries by Countries | 0 | - | 4.96 | 62,588 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,865 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,078 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,075 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,743 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,801 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,718 |
| Island Countries | 0 | - | 4.99 | 708,780 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,251 |
| Northernmost Countries | 0 | - | 4.99 | 359,330 |
| Countries of South America | 0 | - | 5.00 | 919,565 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,528 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,858,487 |
| "Land" Countries | 0 | - | 4.98 | 334,575 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,793 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,884 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,688 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,721 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,513 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,106 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,370,245 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,176 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,904 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 234,645 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 223,781 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 191,172 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,060 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,826 |
| European Countries with One Border | 0 | - | 4.97 | 182,104 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,969 |
| Random Countries by Borders | 0 | - | 4.99 | 81,939 |
| Random Name a Valid Country | 0 | - | 4.99 | 204,080 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,255 |
| Countries with Megacities | 0 | - | 4.99 | 248,890 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,108 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,534 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,463 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,483 |
| Countries by Official Language | 0 | - | 4.95 | 193,987 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,498 |
| Countries in their Native Language | 0 | - | 4.99 | 197,614 |
| Independence from Whom | 0 | - | 4.99 | 210,787 |
| Subdivisions by Country | 0 | - | 4.86 | 50,193 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,313 |
| Megadiverse Countries | 0 | - | 4.96 | 134,532 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,814 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,073 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,623 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,947 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,430 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,209 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,567 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,541 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,368 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,804 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,149 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,578 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,682 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,636 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,851 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,197 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,536 |
| World Map Quiz | 0 | - | 4.81 | 64,066 |
| Empty World Map without 20 Random Countries | 0 | - | 4.93 | 136,357 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,341 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,683 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,046 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,654 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,389 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,682 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,259 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,452 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,612 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,141 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,636 |
| Widest Countries East to West | 0 | - | 4.92 | 129,133 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,326 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,633 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,907 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,950 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,968 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,349 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,082 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,670 |
| Countries with Double Letters | 0 | - | 4.96 | 94,096 |
| Countries that End in N | 0 | - | 4.95 | 165,054 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,524 |
| Countries with Six Letters | 0 | - | 4.93 | 211,093 |
| Countries with W | 0 | - | 4.97 | 158,772 |
| Countries with Z | 0 | - | 4.98 | 288,710 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,006 |
| Countries That End in U | 0 | - | 4.95 | 119,893 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,132 |
| Countries that End in O | 0 | - | 4.92 | 158,844 |
| Countries that End in R | 0 | - | 4.87 | 118,496 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,149 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,717 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,722 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,803 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,364 |
| Countries That End in Y | 0 | - | 4.90 | 185,405 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,815 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,075 |
| Countries that End in I | 0 | - | 4.94 | 134,655 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,677 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,401 |
| Countries That End in NIA | 0 | - | 4.92 | 109,284 |
| Countries That End in BIA | 0 | - | 4.93 | 148,547 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,416 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,759 |
| Countries That End in RIA | 0 | - | 4.93 | 126,326 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,315 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,057 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,856 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,189 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,764 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,138 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,427 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,932 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,827 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,990 |
