| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,612,259 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 718,437 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 278,724 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,214 |
| European Countries with One Border | 0 | - | 4.97 | 182,440 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,253 |
| Random Countries by Borders | 0 | - | 4.99 | 82,235 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,126 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 153,883 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.87 | 88,845 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,515 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.89 | 99,880 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,989 |
| Countries Bordering France | 0 | - | 4.83 | 401,737 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,499 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,308 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.95 | 239,030 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,097,232 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,697 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,930 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,642 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,097 |
| Countries with Four Letters | 0 | - | 4.99 | 421,304 |
| Countries but all Vowels are Changed to O | 0 | - | 4.93 | 69,071 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,150 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,290,493 |
| Countries Bordering India | 0 | - | 4.98 | 163,293 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,159 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,090 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,428 |
| Countries that Border China | 0 | - | 4.96 | 262,771 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,768 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,718 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,732 |
| Merged Countries #2 | 0 | - | 4.96 | 98,860 |
| Merged Countries #6 | 0 | - | 4.90 | 73,093 |
| Merged Countries #7 | 0 | - | 4.93 | 82,411 |
| Landlocked Countries | 0 | - | 4.99 | 418,264 |
| Countries of the World - One Minute Sprint | 0 | - | 4.36 | 974,289 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,524 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 199,358 |
| Top Five Countries By Category #3 | 0 | - | 4.81 | 170,580 |
| Country Chain | 0 | - | 4.96 | 216,739 |
| Countries by Emojis | 0 | - | 4.99 | 238,439 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 55,602 |
| Islands by Country #1 | 0 | - | 4.88 | 175,032 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,315 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,664 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,588 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,752,981 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 215,737 |
| Countries of Africa by Borders in 30 Seconds | 0 | - | 4.43 | 355,545 |
| Asian Countries by Borders in 30 Seconds | 0 | - | 4.45 | 414,454 |
| Name a Valid Country #3 | 0 | - | 4.99 | 262,342 |
| Name a Valid Country #1 | 0 | - | 4.99 | 288,299 |
| Name a Valid Country #2 | 0 | - | 4.98 | 249,842 |
| Name a Valid Country #4 | 0 | - | 4.97 | 254,779 |
| Name a Valid Country #5 | 0 | - | 4.99 | 206,133 |
| Name a Valid Country #6 | 0 | - | 4.94 | 128,809 |
| Monarchies Bordering Monarchies | 0 | - | 4.81 | 60,152 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,648 |
| Himalayan Countries | 0 | - | 4.94 | 137,126 |
| Andean Countries | 0 | - | 4.95 | 83,779 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,027 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,403 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,701 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,258 |
| Danube Countries | 0 | - | 4.97 | 71,585 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,452 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,988 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,524 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,583 |
| European Landlocked Countries | 0 | - | 4.99 | 146,698 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,025 |
| Countries with the Most Species | 0 | - | 4.99 | 102,820 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,165 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,401 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,558 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,490 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,879 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,263 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,933 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,312 |
| Countries in the Alps | 0 | - | 4.87 | 117,590 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,069 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,254 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,370 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,914 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,022 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,398 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,194 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,132 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,929 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,495 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,443 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,302 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,877 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,140 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,161 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,043 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,014 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,882 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,537 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,430 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,003 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,074 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,947 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,587 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,254 |
| Largest Countries By Category | 0 | - | 4.97 | 157,539 |
| Countries by Countries | 0 | - | 4.96 | 62,779 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,426 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,046 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 235,297 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 224,352 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 191,639 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,124 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,446 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,140 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 138,790 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,457 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,263 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,940 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,962 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,212 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 108,736 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 87,376 |
| Random Name a Valid Country | 0 | - | 4.99 | 204,541 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,360 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,421 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,774 |
| Island Countries | 0 | - | 4.99 | 709,485 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,374,299 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,354 |
| Northernmost Countries | 0 | - | 4.99 | 360,191 |
| Countries of South America | 0 | - | 5.00 | 922,125 |
| Countries of Oceania | 0 | - | 5.00 | 1,049,973 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,864,529 |
| "Land" Countries | 0 | - | 4.98 | 335,653 |
| Countries That Border Russia | 0 | - | 4.98 | 460,955 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 381,640 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 137,073 |
| Asian Countries with the Fewest Borders | 0 | - | 4.74 | 106,815 |
| Countries Bordering the EU | 0 | - | 4.77 | 72,737 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,421 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,496 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,785 |
| Countries with Megacities | 0 | - | 4.99 | 250,001 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,638 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,856 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,942 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,838 |
| Countries by Official Language | 0 | - | 4.95 | 194,520 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,368 |
| Countries in their Native Language | 0 | - | 4.99 | 198,083 |
| Independence from Whom | 0 | - | 4.99 | 211,188 |
| Subdivisions by Country | 0 | - | 4.86 | 50,262 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,609 |
| Megadiverse Countries | 0 | - | 4.96 | 134,723 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,200 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,152 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,719 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,999 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,646 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,333 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,879 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,790 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,458 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,957 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,814 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,674 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,942 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,746 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,101 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,296 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,018 |
| World Map Quiz | 0 | - | 4.81 | 64,416 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,269 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,967 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,381 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,870 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,575 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,159 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,455 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,633 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,774 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,229 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,230 |
| Widest Countries East to West | 0 | - | 4.92 | 129,316 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,372 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,886 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,976 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,470 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,151 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,488 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,212 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,714 |
| Countries with Double Letters | 0 | - | 4.97 | 94,985 |
| Countries that End in N | 0 | - | 4.95 | 169,733 |
| Countries with Five Letters | 0 | - | 4.96 | 279,313 |
