| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,643,087 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 736,875 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 280,409 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,275 |
| European Countries with One Border | 0 | - | 4.97 | 183,461 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,213 |
| Random Countries by Borders | 0 | - | 4.99 | 82,854 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,519 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 154,668 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.87 | 89,326 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,118 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.89 | 100,428 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,445 |
| Countries Bordering France | 0 | - | 4.83 | 404,278 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,267 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,592 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.95 | 241,710 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,109,309 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 452,454 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 167,238 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 119,635 |
| Anagram Chain - Countries | 0 | - | 4.98 | 117,194 |
| Countries with Four Letters | 0 | - | 4.99 | 424,781 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,496 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 65,370 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,733,733 |
| Countries Bordering India | 0 | - | 4.98 | 163,701 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,820 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,645 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,747 |
| Countries that Border China | 0 | - | 4.96 | 263,918 |
| Countries Bordering Kenya | 0 | - | 4.87 | 63,051 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,865 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,148 |
| Merged Countries #2 | 0 | - | 4.96 | 99,711 |
| Merged Countries #6 | 0 | - | 4.90 | 73,665 |
| Merged Countries #7 | 0 | - | 4.93 | 83,014 |
| Landlocked Countries | 0 | - | 4.99 | 423,834 |
| Countries of the World - One Minute Sprint | 0 | - | 4.36 | 980,734 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 322,720 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,572 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 183,959 |
| Country Chain | 0 | - | 4.96 | 217,963 |
| Countries by Emojis | 0 | - | 4.99 | 241,191 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,353 |
| Islands by Country #1 | 0 | - | 4.90 | 175,827 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,009 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,352 |
| Regions of Countries #3 | 0 | - | 4.85 | 91,213 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,792,206 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 218,140 |
| Countries of Africa by Borders in 30 Seconds | 0 | - | 4.43 | 356,399 |
| Asian Countries by Borders in 30 Seconds | 0 | - | 4.45 | 416,812 |
| Name a Valid Country #3 | 0 | - | 4.99 | 265,004 |
| Name a Valid Country #1 | 0 | - | 4.99 | 293,545 |
| Name a Valid Country #2 | 0 | - | 4.98 | 253,048 |
| Name a Valid Country #4 | 0 | - | 4.97 | 258,097 |
| Name a Valid Country #5 | 0 | - | 4.99 | 209,047 |
| Name a Valid Country #6 | 0 | - | 4.94 | 140,573 |
| Monarchies Bordering Monarchies | 0 | - | 4.81 | 60,510 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,354 |
| Himalayan Countries | 0 | - | 4.94 | 139,531 |
| Andean Countries | 0 | - | 4.94 | 85,064 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,247 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,457 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,806 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,118 |
| Danube Countries | 0 | - | 4.97 | 72,209 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,308 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,624 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,711 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,216 |
| European Landlocked Countries | 0 | - | 4.99 | 147,378 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,984 |
| Countries with the Most Species | 0 | - | 4.99 | 103,423 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,113 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,681 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,793 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,468 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,538 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,699 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,439 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,852 |
| Countries in the Alps | 0 | - | 4.87 | 118,496 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,081 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,457 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,813 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,814 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,749 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,098 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,923 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,674 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,299 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,018 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,762 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,632 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,389 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,639 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,721 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,381 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,476 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,485 |
| Countries that Host the Most Refugees | 0 | - | 4.97 | 65,241 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,364 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,924 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,660 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,381 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,973 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,747 |
| Largest Countries By Category | 0 | - | 4.97 | 158,548 |
| Countries by Countries | 0 | - | 4.96 | 63,443 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,176 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,481 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 237,379 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 226,424 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 193,134 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,012 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,522 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,348 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,622 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,906 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,400 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,248 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,572 |
| Walking Across Borders with Hints #1 | 0 | - | 4.94 | 109,195 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 87,815 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,976 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,261 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,105 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,565 |
| Island Countries | 0 | - | 4.99 | 711,770 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,388,549 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,052,467 |
| Northernmost Countries | 0 | - | 4.99 | 363,085 |
| Countries of South America | 0 | - | 5.00 | 929,994 |
| Countries of Oceania | 0 | - | 5.00 | 1,060,290 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,883,412 |
| "Land" Countries | 0 | - | 4.98 | 337,888 |
| Countries That Border Russia | 0 | - | 4.98 | 463,816 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 386,196 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 139,331 |
| Asian Countries with the Fewest Borders | 0 | - | 4.74 | 107,226 |
| Countries Bordering the EU | 0 | - | 4.78 | 73,426 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,271 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,718 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,448 |
| Countries with Megacities | 0 | - | 4.99 | 265,885 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,240 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,754 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,500 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,852 |
| Countries by Official Language | 0 | - | 4.95 | 195,645 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,100 |
| Countries in their Native Language | 0 | - | 4.99 | 199,424 |
| Independence from Whom | 0 | - | 4.99 | 212,570 |
| Subdivisions by Country | 0 | - | 4.87 | 50,534 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,075 |
| Megadiverse Countries | 0 | - | 4.96 | 135,156 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,444 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,463 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,343 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,163 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,375 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,700 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,742 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,471 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,748 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,207 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,095 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,258 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,332 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,062 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,477 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,602 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,839 |
| World Map Quiz | 0 | - | 4.81 | 65,381 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,280 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,532 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,666 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,683 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,338 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,968 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,199 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,320 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,537 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,587 |
| Tallest Countries North to South | 0 | - | 4.85 | 129,040 |
| Widest Countries East to West | 0 | - | 4.92 | 130,199 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,530 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,024 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,439 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,932 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,808 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,084 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,447 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,853 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 337,524 |
| Countries with Double Letters | 0 | - | 4.96 | 96,686 |
| Countries that End in N | 0 | - | 4.95 | 171,567 |
| Countries with Five Letters | 0 | - | 4.96 | 283,217 |
