| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,731 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 199,386 |
| Top Five Countries By Category #3 | 0 | - | 4.81 | 170,604 |
| Five Biggest Immigrant Groups by Country #3 | 0 | - | 4.70 | 66,178 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,612,740 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,097,492 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,971 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,674 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,108 |
| Countries with Four Letters | 0 | - | 4.99 | 421,349 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,092 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,170 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,299,129 |
| Landlocked Countries | 0 | - | 4.99 | 418,365 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,560 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 718,544 |
| Country Chain | 0 | - | 4.96 | 216,753 |
| Countries by Emojis | 0 | - | 4.99 | 238,468 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 55,624 |
| Islands by Country #1 | 0 | - | 4.88 | 175,042 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,321 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,675 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,593 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,753,713 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 215,772 |
| Name a Valid Country #3 | 0 | - | 4.99 | 262,371 |
| Name a Valid Country #1 | 0 | - | 4.99 | 288,361 |
| Name a Valid Country #2 | 0 | - | 4.98 | 249,888 |
| Name a Valid Country #4 | 0 | - | 4.97 | 254,817 |
| Name a Valid Country #5 | 0 | - | 4.99 | 206,168 |
| Name a Valid Country #6 | 0 | - | 4.94 | 128,832 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,692 |
| Himalayan Countries | 0 | - | 4.94 | 137,168 |
| Andean Countries | 0 | - | 4.95 | 83,792 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,041 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,435 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,724 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,266 |
| Danube Countries | 0 | - | 4.97 | 71,596 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,462 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,998 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,542 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,603 |
| European Landlocked Countries | 0 | - | 4.99 | 146,705 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,043 |
| Countries with the Most Species | 0 | - | 4.99 | 102,838 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,181 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,408 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,565 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,264 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,939 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,317 |
| Countries in the Alps | 0 | - | 4.87 | 117,603 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,079 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,268 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,373 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,925 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,030 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,403 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,211 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,138 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,934 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,505 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,448 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,308 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,882 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,156 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,171 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,068 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,023 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,896 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,541 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,442 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,102 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,094 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,954 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,597 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,261 |
| Largest Countries By Category | 0 | - | 4.97 | 157,550 |
| Countries by Countries | 0 | - | 4.96 | 62,786 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,436 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,051 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 235,332 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 224,383 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 191,662 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,134 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,462 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,146 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,276 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,946 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,611 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,641 |
| Random Countries by Borders | 0 | - | 4.99 | 82,243 |
| Random Name a Valid Country | 0 | - | 4.99 | 204,577 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,512 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,458 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,838 |
| Island Countries | 0 | - | 4.99 | 709,537 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,374,583 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,500 |
| Northernmost Countries | 0 | - | 4.99 | 360,236 |
| Countries of South America | 0 | - | 5.00 | 922,266 |
| Countries of Oceania | 0 | - | 5.00 | 1,050,132 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,864,880 |
| "Land" Countries | 0 | - | 4.98 | 335,677 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 381,698 |
| UK Immigration by Country | 0 | - | 4.94 | 140,618 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 137,110 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,574 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,546 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,842 |
| Countries with Megacities | 0 | - | 4.99 | 254,240 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,700 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,892 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,998 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,879 |
| Countries by Official Language | 0 | - | 4.95 | 194,548 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,405 |
| Countries in their Native Language | 0 | - | 4.99 | 198,096 |
| Independence from Whom | 0 | - | 4.99 | 211,208 |
| Subdivisions by Country | 0 | - | 4.86 | 50,266 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,619 |
| Megadiverse Countries | 0 | - | 4.96 | 134,735 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,333 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,157 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,723 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,001 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,656 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,342 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,898 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,800 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,460 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,965 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,845 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,682 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,953 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,751 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,109 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,300 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,058 |
| World Map Quiz | 0 | - | 4.81 | 64,428 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,325 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,975 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,407 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,877 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,588 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,202 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,471 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,641 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,786 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,236 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,239 |
| Widest Countries East to West | 0 | - | 4.92 | 129,322 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,373 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,900 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,982 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,480 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,162 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,499 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,219 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,716 |
| Countries with Double Letters | 0 | - | 4.97 | 95,007 |
| Countries that End in N | 0 | - | 4.95 | 169,789 |
| Countries with Five Letters | 0 | - | 4.96 | 279,562 |
| Countries with Six Letters | 0 | - | 4.94 | 212,372 |
| Countries with W | 0 | - | 4.97 | 159,458 |
| Countries with Z | 0 | - | 4.98 | 289,705 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,661 |
| Countries That End in U | 0 | - | 4.95 | 120,378 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,680 |
| Countries that End in O | 0 | - | 4.92 | 159,166 |
| Countries that End in R | 0 | - | 4.87 | 118,711 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,488 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,230 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,057 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,050 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,636 |
| Countries That End in Y | 0 | - | 4.90 | 185,625 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,161 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,358 |
| Countries that End in I | 0 | - | 4.94 | 134,836 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,014 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,551 |
| Countries That End in NIA | 0 | - | 4.92 | 109,487 |
| Countries That End in BIA | 0 | - | 4.93 | 148,801 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,660 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,015 |
| Countries That End in RIA | 0 | - | 4.93 | 126,497 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,587 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,558 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,157 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,497 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,053 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,290 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,643 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,191 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,075 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,174 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,773 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,479 |
