| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,615,734 |
| Countries by Languages in 90 Seconds | 0 | - | 4.94 | 719,288 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 278,956 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,324 |
| European Countries with One Border | 0 | - | 4.97 | 182,550 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,363 |
| Random Countries by Borders | 0 | - | 4.99 | 82,299 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,178 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 153,993 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.87 | 88,916 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,605 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.89 | 99,957 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,040 |
| Countries Bordering France | 0 | - | 4.83 | 402,004 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,698 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,353 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.95 | 239,276 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,098,809 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,982 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 165,181 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,865 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,218 |
| Countries with Four Letters | 0 | - | 4.99 | 421,682 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,247 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,287 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,346,537 |
| Countries Bordering India | 0 | - | 4.98 | 163,346 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,209 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,106 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,461 |
| Countries that Border China | 0 | - | 4.96 | 262,904 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,796 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,735 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,767 |
| Merged Countries #2 | 0 | - | 4.96 | 98,932 |
| Merged Countries #6 | 0 | - | 4.90 | 73,151 |
| Merged Countries #7 | 0 | - | 4.93 | 82,475 |
| Landlocked Countries | 0 | - | 4.99 | 419,138 |
| Countries of the World - One Minute Sprint | 0 | - | 4.36 | 975,293 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,963 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 199,500 |
| Top Five Countries By Category #3 | 0 | - | 4.81 | 170,719 |
| Country Chain | 0 | - | 4.96 | 216,848 |
| Countries by Emojis | 0 | - | 4.99 | 238,885 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 55,749 |
| Islands by Country #1 | 0 | - | 4.88 | 175,127 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,394 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,742 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,637 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,757,815 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 216,117 |
| Countries of Africa by Borders in 30 Seconds | 0 | - | 4.43 | 355,646 |
| Asian Countries by Borders in 30 Seconds | 0 | - | 4.45 | 414,703 |
| Name a Valid Country #3 | 0 | - | 4.99 | 262,560 |
| Name a Valid Country #1 | 0 | - | 4.99 | 288,830 |
| Name a Valid Country #2 | 0 | - | 4.98 | 250,128 |
| Name a Valid Country #4 | 0 | - | 4.97 | 255,037 |
| Name a Valid Country #5 | 0 | - | 4.99 | 206,434 |
| Name a Valid Country #6 | 0 | - | 4.94 | 129,003 |
| Monarchies Bordering Monarchies | 0 | - | 4.81 | 60,191 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,063 |
| Himalayan Countries | 0 | - | 4.94 | 137,502 |
| Andean Countries | 0 | - | 4.95 | 83,978 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,251 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,720 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,869 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,374 |
| Danube Countries | 0 | - | 4.97 | 71,686 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,587 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,078 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,686 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,758 |
| European Landlocked Countries | 0 | - | 4.99 | 146,797 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,160 |
| Countries with the Most Species | 0 | - | 4.99 | 102,928 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,297 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,436 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,597 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,594 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,950 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,320 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,001 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,375 |
| Countries in the Alps | 0 | - | 4.87 | 117,712 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,154 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,400 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,433 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,016 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,125 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,709 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,302 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,206 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,977 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,571 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,496 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,346 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,946 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,202 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,224 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,224 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,078 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,967 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,582 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,553 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,463 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,266 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,011 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,660 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,322 |
| Largest Countries By Category | 0 | - | 4.97 | 157,665 |
| Countries by Countries | 0 | - | 4.96 | 62,855 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,523 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,095 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 235,620 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 224,604 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 191,841 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,235 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,584 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,168 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 139,047 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,475 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,339 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,003 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,999 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,275 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 108,843 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 87,464 |
| Random Name a Valid Country | 0 | - | 4.99 | 204,752 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,140 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,654 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,191 |
| Island Countries | 0 | - | 4.99 | 709,833 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,376,084 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,239 |
| Northernmost Countries | 0 | - | 4.99 | 360,553 |
| Countries of South America | 0 | - | 5.00 | 923,122 |
| Countries of Oceania | 0 | - | 5.00 | 1,051,332 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,866,885 |
| "Land" Countries | 0 | - | 4.98 | 335,834 |
| Countries That Border Russia | 0 | - | 4.98 | 461,219 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 382,446 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 137,419 |
| Asian Countries with the Fewest Borders | 0 | - | 4.74 | 106,876 |
| Countries Bordering the EU | 0 | - | 4.77 | 72,773 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,542 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,792 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,080 |
| Countries with Megacities | 0 | - | 4.99 | 260,883 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,935 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,020 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,214 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,034 |
| Countries by Official Language | 0 | - | 4.95 | 194,664 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,580 |
| Countries in their Native Language | 0 | - | 4.99 | 198,215 |
| Independence from Whom | 0 | - | 4.99 | 211,356 |
| Subdivisions by Country | 0 | - | 4.86 | 50,294 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,736 |
| Megadiverse Countries | 0 | - | 4.96 | 134,781 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,569 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,191 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,762 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,023 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,727 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,392 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,002 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,852 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,492 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,996 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,027 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,726 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,004 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,790 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,164 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,333 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,243 |
| World Map Quiz | 0 | - | 4.81 | 64,564 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,688 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,050 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,539 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,942 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,660 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,370 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,533 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,688 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,843 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,273 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,297 |
| Widest Countries East to West | 0 | - | 4.92 | 129,390 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,387 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,975 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,998 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,522 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,236 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,563 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,243 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,729 |
| Countries with Double Letters | 0 | - | 4.97 | 95,118 |
| Countries that End in N | 0 | - | 4.95 | 170,045 |
| Countries with Five Letters | 0 | - | 4.96 | 280,393 |
