| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,946 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,088,710 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,971 |
| Random Countries by Borders | 0 | - | 4.99 | 81,713 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,325 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,589,892 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,341 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 116,256 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,318 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,287 |
| Random Capital to Country | 0 | - | 4.99 | 2,578,872 |
| Random Country to Capital | 0 | - | 4.98 | 912,143 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,953,115 |
| Landlocked Countries | 0 | - | 4.99 | 413,982 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,954 |
| Countries with Four Letters | 0 | - | 4.99 | 418,764 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 378,846 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 134,977 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,720,309 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,752 |
| Himalayan Countries | 0 | - | 4.95 | 135,492 |
| Andean Countries | 0 | - | 4.94 | 82,891 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,277 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,290 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,970 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,653 |
| Danube Countries | 0 | - | 4.97 | 71,116 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,815 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,577 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,565 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,472 |
| European Landlocked Countries | 0 | - | 4.99 | 145,799 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,266 |
| Countries with the Most Species | 0 | - | 4.99 | 95,261 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,407 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,212 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,384 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,409 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,977 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,518 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,600 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,980 |
| Countries in the Alps | 0 | - | 4.86 | 116,896 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,609 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,334 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,040 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,460 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,220 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,042 |
| Country Chain | 0 | - | 4.96 | 215,821 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,618 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,787 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,446 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,104 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,206 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,063 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,481 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,790 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,783 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,153 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,685 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,277 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,828 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,514 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,805 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,624 |
| Largest Countries By Category | 0 | - | 4.97 | 156,835 |
| Countries by Emojis | 0 | - | 4.99 | 236,493 |
| Countries by Countries | 0 | - | 4.96 | 62,297 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,160 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 317,232 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,462 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,977 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,343 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,810 |
| Islands by Country #1 | 0 | - | 4.87 | 174,546 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,965 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,315 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,361 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,946 |
| Name a Valid Country #1 | 0 | - | 4.99 | 283,820 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,557 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,747 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,924 |
| Name a Valid Country #6 | 0 | - | 4.95 | 126,515 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 712,066 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,551 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,259 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,076 |
| Island Countries | 0 | - | 4.99 | 707,770 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,020 |
| Northernmost Countries | 0 | - | 4.99 | 357,951 |
| Countries of South America | 0 | - | 5.00 | 915,478 |
| Countries of Oceania | 0 | - | 5.00 | 1,041,461 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,849,849 |
| "Land" Countries | 0 | - | 4.98 | 333,749 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,500 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,488 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,391 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,372 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,888 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,363,402 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,753 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,664 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,710 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,963 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,476 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,537 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,626 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,507 |
| Countries with Megacities | 0 | - | 4.99 | 247,351 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,336 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,126 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,757 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,045 |
| Countries by Official Language | 0 | - | 4.95 | 192,857 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,242 |
| Countries in their Native Language | 0 | - | 4.99 | 196,714 |
| Independence from Whom | 0 | - | 4.99 | 209,801 |
| Subdivisions by Country | 0 | - | 4.86 | 50,085 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,835 |
| Megadiverse Countries | 0 | - | 4.97 | 133,937 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,885 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,937 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,446 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,870 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,717 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,032 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,114 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,187 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,230 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,754 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,666 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,444 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,523 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,522 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,708 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,041 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,684 |
| World Map Quiz | 0 | - | 4.81 | 63,554 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,907 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,374 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,444 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,118 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,992 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,879 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,908 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,102 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,312 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,965 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,365 |
| Widest Countries East to West | 0 | - | 4.92 | 128,640 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,221 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,276 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,589 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,720 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,671 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,096 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,060 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,596 |
| Countries with Double Letters | 0 | - | 4.96 | 93,454 |
| Countries that End in N | 0 | - | 4.94 | 156,959 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,766 |
| Countries with Six Letters | 0 | - | 4.93 | 210,429 |
| Countries with W | 0 | - | 4.97 | 158,279 |
| Countries with Z | 0 | - | 4.98 | 287,965 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,603 |
| Countries That End in U | 0 | - | 4.95 | 119,541 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,656 |
| Countries that End in O | 0 | - | 4.92 | 158,582 |
| Countries that End in R | 0 | - | 4.87 | 118,297 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,873 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,159 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,387 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,534 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,074 |
| Countries That End in Y | 0 | - | 4.90 | 185,226 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,443 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,737 |
| Countries that End in I | 0 | - | 4.94 | 134,451 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,270 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,226 |
| Countries That End in NIA | 0 | - | 4.92 | 109,037 |
| Countries That End in BIA | 0 | - | 4.92 | 147,744 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,121 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,521 |
| Countries That End in RIA | 0 | - | 4.93 | 126,110 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,043 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,268 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,551 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,928 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,408 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,952 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,158 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,685 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,549 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,832 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,194 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,861 |
| Countries that End in L | 0 | - | 4.94 | 155,780 |
