| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,645,662 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 738,463 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 280,530 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,370 |
| European Countries with One Border | 0 | - | 4.97 | 183,533 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,282 |
| Random Countries by Borders | 0 | - | 4.99 | 82,894 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,534 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 154,705 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.87 | 89,357 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,143 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.89 | 100,464 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,466 |
| Countries Bordering France | 0 | - | 4.83 | 404,424 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,392 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,612 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.95 | 242,049 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,110,243 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 452,677 |
| Solve the Secret Country #1 | 0 | - | 4.93 | 167,443 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 119,822 |
| Anagram Chain - Countries | 0 | - | 4.98 | 117,296 |
| Countries with Four Letters | 0 | - | 4.99 | 425,034 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,629 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 65,477 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,764,850 |
| Countries Bordering India | 0 | - | 4.98 | 163,731 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,850 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,659 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,763 |
| Countries that Border China | 0 | - | 4.96 | 264,005 |
| Countries Bordering Kenya | 0 | - | 4.87 | 63,067 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,874 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,175 |
| Merged Countries #2 | 0 | - | 4.96 | 99,766 |
| Merged Countries #6 | 0 | - | 4.90 | 73,702 |
| Merged Countries #7 | 0 | - | 4.93 | 83,042 |
| Landlocked Countries | 0 | - | 4.99 | 424,239 |
| Countries of the World - One Minute Sprint | 0 | - | 4.36 | 981,357 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 323,058 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,682 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 184,089 |
| Country Chain | 0 | - | 4.96 | 218,140 |
| Countries by Emojis | 0 | - | 4.99 | 241,364 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,408 |
| Islands by Country #1 | 0 | - | 4.90 | 176,097 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,088 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,408 |
| Regions of Countries #3 | 0 | - | 4.85 | 91,278 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,794,800 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 218,322 |
| Countries of Africa by Borders in 30 Seconds | 0 | - | 4.43 | 356,445 |
| Asian Countries by Borders in 30 Seconds | 0 | - | 4.45 | 417,415 |
| Name a Valid Country #3 | 0 | - | 4.99 | 265,415 |
| Name a Valid Country #1 | 0 | - | 4.99 | 294,190 |
| Name a Valid Country #2 | 0 | - | 4.98 | 253,480 |
| Name a Valid Country #4 | 0 | - | 4.97 | 258,532 |
| Name a Valid Country #5 | 0 | - | 4.99 | 209,429 |
| Name a Valid Country #6 | 0 | - | 4.95 | 143,218 |
| Monarchies Bordering Monarchies | 0 | - | 4.81 | 60,522 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,520 |
| Himalayan Countries | 0 | - | 4.94 | 139,684 |
| Andean Countries | 0 | - | 4.94 | 85,139 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,318 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,564 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,894 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,172 |
| Danube Countries | 0 | - | 4.97 | 72,250 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,382 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,683 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,804 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,294 |
| European Landlocked Countries | 0 | - | 4.99 | 147,429 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,041 |
| Countries with the Most Species | 0 | - | 4.99 | 103,454 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,174 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,700 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,810 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,542 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,581 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,725 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,455 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,878 |
| Countries in the Alps | 0 | - | 4.87 | 118,540 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,223 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,557 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,843 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,853 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,776 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,116 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,968 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,706 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,328 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,043 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,780 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,647 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,425 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,666 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,750 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,450 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,500 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,521 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,456 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,451 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,105 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,779 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,411 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,995 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,778 |
| Largest Countries By Category | 0 | - | 4.97 | 158,603 |
| Countries by Countries | 0 | - | 4.96 | 63,483 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,225 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,512 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 237,653 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 226,607 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 193,329 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,054 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,719 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,359 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,637 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,958 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,441 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,277 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,598 |
| Walking Across Borders with Hints #1 | 0 | - | 4.94 | 109,226 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 87,834 |
| Random Name a Valid Country | 0 | - | 4.99 | 206,226 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,784 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,234 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,792 |
| Island Countries | 0 | - | 4.99 | 711,972 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,390,140 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,052,997 |
| Northernmost Countries | 0 | - | 4.99 | 363,307 |
| Countries of South America | 0 | - | 5.00 | 930,553 |
| Countries of Oceania | 0 | - | 5.00 | 1,060,968 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,884,747 |
| "Land" Countries | 0 | - | 4.98 | 338,001 |
| Countries That Border Russia | 0 | - | 4.98 | 463,990 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 386,530 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 139,498 |
| Asian Countries with the Fewest Borders | 0 | - | 4.74 | 107,256 |
| Countries Bordering the EU | 0 | - | 4.78 | 73,453 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,907 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,925 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,715 |
| Countries with Megacities | 0 | - | 4.99 | 266,233 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,440 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,855 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,732 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,970 |
| Countries by Official Language | 0 | - | 4.95 | 195,740 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,249 |
| Countries in their Native Language | 0 | - | 4.99 | 199,509 |
| Independence from Whom | 0 | - | 4.99 | 212,693 |
| Subdivisions by Country | 0 | - | 4.87 | 50,552 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,172 |
| Megadiverse Countries | 0 | - | 4.96 | 135,180 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,732 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,474 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,370 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,177 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,415 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,734 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,854 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,495 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,769 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,218 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,148 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,295 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,361 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,078 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,501 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,617 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,955 |
| World Map Quiz | 0 | - | 4.81 | 65,416 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,497 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,558 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,937 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,923 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,411 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,168 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,266 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,385 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,584 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,612 |
| Tallest Countries North to South | 0 | - | 4.86 | 129,909 |
| Widest Countries East to West | 0 | - | 4.92 | 130,289 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,555 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,077 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,455 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,965 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,840 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,342 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,460 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,860 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 337,605 |
| Countries with Double Letters | 0 | - | 4.96 | 96,767 |
| Countries that End in N | 0 | - | 4.95 | 171,654 |
| Countries with Five Letters | 0 | - | 4.96 | 283,343 |
