| Islands by Country #1 | 0 | - | 4.87 | 174,392 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,836 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,203 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,277 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,537 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,583,400 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,849,706 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,086,181 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,426 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 162,816 |
| Solve the Secret Country #2 | 0 | - | 4.84 | 115,819 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,059 |
| Countries with Four Letters | 0 | - | 4.99 | 418,021 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,622 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,017 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 334,400 |
| Landlocked Countries | 0 | - | 4.99 | 412,861 |
| Musical Acts by Country #1 | 0 | - | 4.45 | 78,809 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,127 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,264 |
| Country Chain | 0 | - | 4.96 | 215,550 |
| Countries by Emojis | 0 | - | 4.99 | 235,782 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,015 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,529 |
| Ethnic Groups by Country #2 | 0 | - | 4.29 | 52,591 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,709,581 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,534 |
| Name a Valid Country #1 | 0 | - | 4.99 | 282,842 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,072 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,225 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,546 |
| Name a Valid Country #6 | 0 | - | 4.94 | 126,173 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 710,487 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,225 |
| Himalayan Countries | 0 | - | 4.95 | 135,045 |
| Andean Countries | 0 | - | 4.94 | 82,658 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,079 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 122,979 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,752 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,460 |
| Danube Countries | 0 | - | 4.97 | 70,991 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,634 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,452 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,286 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,193 |
| European Landlocked Countries | 0 | - | 4.99 | 145,664 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,048 |
| Countries with the Most Species | 0 | - | 4.99 | 95,184 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,188 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,174 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,333 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,907 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,510 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,864 |
| Countries in the Alps | 0 | - | 4.87 | 116,680 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,466 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,077 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,938 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,319 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,063 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,934 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,469 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,683 |
| Largest Country by Body of Water | 0 | - | 4.95 | 55,430 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,965 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,164 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 40,995 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,362 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,670 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,671 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,857 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,566 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,199 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,663 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,819 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,358 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,537 |
| Largest Countries By Category | 0 | - | 4.97 | 156,608 |
| Countries by Countries | 0 | - | 4.96 | 62,163 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,207 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,931 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,649 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 322,994 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,820 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 400,988 |
| Island Countries | 0 | - | 4.99 | 707,226 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,305 |
| Northernmost Countries | 0 | - | 4.99 | 357,232 |
| Mountains by Country | 0 | - | 4.64 | 81,523 |
| Islands by Country #2 | 0 | - | 4.80 | 76,936 |
| Countries of South America | 0 | - | 5.00 | 913,347 |
| Countries of Oceania | 0 | - | 5.00 | 1,038,573 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,845,071 |
| "Land" Countries | 0 | - | 4.98 | 333,409 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,309 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,362 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,249 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,280 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,765 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,359,986 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,510 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,556 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,240 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,522 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,066 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,252 |
| Movies by Country Quiz #1 | 0 | - | 4.17 | 53,228 |
| Movies by Country Quiz #2 | 0 | - | 4.20 | 45,606 |
| Random Countries by Borders | 0 | - | 4.99 | 81,573 |
| Random Name a Valid Country | 0 | - | 4.99 | 202,989 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,855 |
| Countries with Megacities | 0 | - | 4.99 | 246,166 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,775 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,729 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,238 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,665 |
| Countries by Official Language | 0 | - | 4.95 | 192,581 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,856 |
| Countries in their Native Language | 0 | - | 4.99 | 196,461 |
| Independence from Whom | 0 | - | 4.99 | 209,453 |
| Subdivisions by Country | 0 | - | 4.86 | 50,034 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,580 |
| Megadiverse Countries | 0 | - | 4.97 | 133,829 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,645 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,876 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,372 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,836 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,535 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,937 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,586 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,059 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,175 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,711 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,368 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,360 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,424 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,441 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,600 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,978 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,333 |
| World Map Quiz | 0 | - | 4.81 | 63,351 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 134,459 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,216 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,149 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,875 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,849 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,500 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,762 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 92,958 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,169 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,876 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,251 |
| Widest Countries East to West | 0 | - | 4.92 | 128,519 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,191 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,073 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,519 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,621 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,515 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,945 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,031 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,552 |
| Inventions by Country #1 | 0 | - | 4.46 | 54,865 |
| Airlines by Country | 0 | - | 4.52 | 134,709 |
| Countries with Double Letters | 0 | - | 4.97 | 93,212 |
| Countries that End in N | 0 | - | 4.94 | 156,281 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,477 |
| Countries with Six Letters | 0 | - | 4.93 | 210,178 |
| Countries with W | 0 | - | 4.97 | 158,090 |
| Countries with Z | 0 | - | 4.98 | 287,343 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,425 |
| Countries That End in U | 0 | - | 4.95 | 119,441 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,326 |
| Countries that End in O | 0 | - | 4.92 | 158,473 |
| Countries that End in R | 0 | - | 4.86 | 118,201 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,807 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,854 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,180 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,377 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,565 |
| Countries That End in Y | 0 | - | 4.90 | 185,148 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,172 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,542 |
| Countries that End in I | 0 | - | 4.94 | 134,298 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,009 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,137 |
| Countries That End in NIA | 0 | - | 4.92 | 108,928 |
| Countries That End in BIA | 0 | - | 4.92 | 147,608 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 165,965 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,402 |
| Countries That End in RIA | 0 | - | 4.93 | 126,008 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 109,915 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 224,958 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,425 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,801 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,234 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,869 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,022 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,547 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,385 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,767 |
