| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,598,553 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 714,520 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,046 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,822 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,092,373 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,565 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,955 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 116,813 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,610 |
| Countries with Four Letters | 0 | - | 4.99 | 419,723 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 68,355 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,597 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,078,637 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,969 |
| Landlocked Countries | 0 | - | 4.99 | 415,607 |
| Countries of the World - One Minute Sprint | 0 | - | 4.35 | 958,113 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 318,027 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,722 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,851 |
| Country Chain | 0 | - | 4.96 | 216,181 |
| Countries by Emojis | 0 | - | 4.99 | 237,408 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,331 |
| Islands by Country #1 | 0 | - | 4.87 | 174,701 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,086 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,434 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,439 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,732,838 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,110 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,811 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,532 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 214,582 |
| Name a Valid Country #3 | 0 | - | 4.99 | 260,854 |
| Name a Valid Country #1 | 0 | - | 4.99 | 285,606 |
| Name a Valid Country #2 | 0 | - | 4.98 | 247,844 |
| Name a Valid Country #4 | 0 | - | 4.97 | 253,080 |
| Name a Valid Country #5 | 0 | - | 4.99 | 199,153 |
| Name a Valid Country #6 | 0 | - | 4.94 | 127,514 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,407 |
| Himalayan Countries | 0 | - | 4.95 | 136,058 |
| Andean Countries | 0 | - | 4.94 | 83,216 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,532 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,699 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,220 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,868 |
| Danube Countries | 0 | - | 4.97 | 71,285 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,035 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,733 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,914 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,863 |
| European Landlocked Countries | 0 | - | 4.99 | 145,995 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,569 |
| Countries with the Most Species | 0 | - | 4.99 | 95,359 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,697 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,278 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,447 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,747 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,618 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,079 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,732 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,100 |
| Countries in the Alps | 0 | - | 4.86 | 117,158 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,780 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,643 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,171 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,610 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,411 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,161 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,830 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,912 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,714 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,229 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,282 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,154 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,636 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,901 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,913 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,518 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,810 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,606 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,361 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,071 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,410 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,273 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,747 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,460 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,021 |
| Largest Countries By Category | 0 | - | 4.97 | 157,072 |
| Countries by Countries | 0 | - | 4.96 | 62,466 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 234,277 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 223,440 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,897 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,712 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,867 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,039 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 137,862 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,387 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,978 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,731 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 235,494 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 134,379 |
| Random Countries by Borders | 0 | - | 4.99 | 81,849 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,746 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.95 | 237,632 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,037 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,897 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,921 |
| Island Countries | 0 | - | 4.99 | 708,428 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,367,809 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,039 |
| Northernmost Countries | 0 | - | 4.99 | 358,831 |
| Countries of South America | 0 | - | 5.00 | 918,217 |
| Countries of Oceania | 0 | - | 5.00 | 1,044,741 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,855,203 |
| "Land" Countries | 0 | - | 4.98 | 334,161 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 379,957 |
| Empty World Map without 20 Random Countries | 0 | - | 4.93 | 135,815 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,346 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,476 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,979 |
| Countries with Megacities | 0 | - | 4.99 | 248,362 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,872 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,395 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,263 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,327 |
| Countries by Official Language | 0 | - | 4.95 | 193,241 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,803 |
| Countries in their Native Language | 0 | - | 4.99 | 197,074 |
| Independence from Whom | 0 | - | 4.99 | 210,215 |
| Subdivisions by Country | 0 | - | 4.86 | 50,155 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,108 |
| Megadiverse Countries | 0 | - | 4.96 | 134,477 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,233 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,029 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,558 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,917 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,911 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,144 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,381 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,470 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,311 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,790 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 75,988 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,531 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,638 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,599 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,812 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,135 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,213 |
| World Map Quiz | 0 | - | 4.81 | 63,848 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,827 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,620 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,834 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,553 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,276 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,420 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,142 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,343 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,533 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,092 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,558 |
| Widest Countries East to West | 0 | - | 4.92 | 129,049 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,294 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,522 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,662 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,881 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,866 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,255 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,831 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,649 |
| Foods by Country of Origin #1 | 0 | - | 4.42 | 335,529 |
| Countries with Double Letters | 0 | - | 4.96 | 93,739 |
| Countries that End in N | 0 | - | 4.94 | 157,174 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,104 |
| Countries with Six Letters | 0 | - | 4.93 | 210,759 |
| Countries with W | 0 | - | 4.97 | 158,454 |
| Countries with Z | 0 | - | 4.98 | 288,307 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,803 |
| Countries That End in U | 0 | - | 4.95 | 119,627 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,924 |
| Countries that End in O | 0 | - | 4.92 | 158,675 |
| Countries that End in R | 0 | - | 4.87 | 118,391 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,945 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,467 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,588 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,686 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,239 |
| Countries That End in Y | 0 | - | 4.90 | 185,302 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,657 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,944 |
| Countries that End in I | 0 | - | 4.94 | 134,564 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,528 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,328 |
| Countries That End in NIA | 0 | - | 4.92 | 109,149 |
| Countries That End in BIA | 0 | - | 4.92 | 147,879 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,292 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,663 |
| Countries That End in RIA | 0 | - | 4.93 | 126,215 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,205 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,809 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,716 |
