| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 68,578 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,093,696 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 214,875 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 138,081 |
| Random Countries by Borders | 0 | - | 4.99 | 81,922 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,967 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,602,212 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,236 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,046 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,760 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,754 |
| Random Capital to Country | 0 | - | 4.99 | 2,583,517 |
| Random Country to Capital | 0 | - | 4.98 | 914,602 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,132,125 |
| Landlocked Countries | 0 | - | 4.99 | 416,251 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,853 |
| Countries with Four Letters | 0 | - | 4.99 | 420,098 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 380,369 |
| Empty World Map without 20 Random Countries | 0 | - | 4.93 | 136,182 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,737,796 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,743 |
| Himalayan Countries | 0 | - | 4.95 | 136,339 |
| Andean Countries | 0 | - | 4.95 | 83,395 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,657 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,887 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,351 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,958 |
| Danube Countries | 0 | - | 4.97 | 71,355 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,151 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,815 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,076 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,022 |
| European Landlocked Countries | 0 | - | 4.99 | 146,081 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,698 |
| Countries with the Most Species | 0 | - | 4.99 | 99,986 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,842 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,312 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,486 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,869 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,130 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,978 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,784 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,155 |
| Countries in the Alps | 0 | - | 4.86 | 117,283 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,866 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,806 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,226 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,697 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,759 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,218 |
| Country Chain | 0 | - | 4.96 | 216,359 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,943 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,967 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,768 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,300 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,337 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,188 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,690 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,959 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,971 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,635 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,867 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,401 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,155 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,775 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,468 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,790 |
| Largest Countries By Category | 0 | - | 4.97 | 157,204 |
| Countries by Emojis | 0 | - | 4.99 | 237,676 |
| Countries by Countries | 0 | - | 4.96 | 62,558 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,403 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 318,384 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,820 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,068 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,403 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,047 |
| Islands by Country #1 | 0 | - | 4.87 | 174,779 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,145 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,500 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,478 |
| Name a Valid Country #3 | 0 | - | 4.99 | 261,422 |
| Name a Valid Country #1 | 0 | - | 4.99 | 286,539 |
| Name a Valid Country #2 | 0 | - | 4.98 | 248,683 |
| Name a Valid Country #4 | 0 | - | 4.97 | 253,725 |
| Name a Valid Country #5 | 0 | - | 4.99 | 203,996 |
| Name a Valid Country #6 | 0 | - | 4.94 | 128,076 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 715,639 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,525 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,657 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,482 |
| Island Countries | 0 | - | 4.99 | 708,683 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,874 |
| Northernmost Countries | 0 | - | 4.99 | 359,169 |
| Countries of South America | 0 | - | 5.00 | 919,140 |
| Countries of Oceania | 0 | - | 5.00 | 1,045,971 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,857,384 |
| "Land" Countries | 0 | - | 4.98 | 334,323 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,831 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,660 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,703 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,492 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,081 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,369,489 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,135 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,876 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 234,542 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 223,679 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 191,081 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,991 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,802 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,166 |
| Countries with Megacities | 0 | - | 4.99 | 248,713 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,031 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,484 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,400 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,435 |
| Countries by Official Language | 0 | - | 4.95 | 193,883 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,365 |
| Countries in their Native Language | 0 | - | 4.99 | 197,528 |
| Independence from Whom | 0 | - | 4.99 | 210,448 |
| Subdivisions by Country | 0 | - | 4.86 | 50,179 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,254 |
| Megadiverse Countries | 0 | - | 4.96 | 134,512 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,717 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,063 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,612 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,939 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,404 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,187 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,508 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,516 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,352 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,798 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,109 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,563 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,661 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,629 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,833 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,183 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,415 |
| World Map Quiz | 0 | - | 4.81 | 63,991 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,158 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,661 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,987 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,625 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,352 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,604 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,223 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,416 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,591 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,127 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,613 |
| Widest Countries East to West | 0 | - | 4.92 | 129,110 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,318 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,600 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,896 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,930 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,944 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,322 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,019 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,661 |
| Countries with Double Letters | 0 | - | 4.96 | 93,857 |
| Countries that End in N | 0 | - | 4.94 | 157,829 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,255 |
| Countries with Six Letters | 0 | - | 4.93 | 210,877 |
| Countries with W | 0 | - | 4.97 | 158,551 |
| Countries with Z | 0 | - | 4.98 | 288,453 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,875 |
| Countries That End in U | 0 | - | 4.95 | 119,681 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,040 |
| Countries that End in O | 0 | - | 4.92 | 158,720 |
| Countries that End in R | 0 | - | 4.87 | 118,426 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,981 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,606 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,656 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,749 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,315 |
| Countries That End in Y | 0 | - | 4.90 | 185,334 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,758 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,015 |
| Countries that End in I | 0 | - | 4.94 | 134,607 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,621 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,376 |
| Countries That End in NIA | 0 | - | 4.92 | 109,242 |
| Countries That End in BIA | 0 | - | 4.93 | 148,478 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,367 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,722 |
| Countries That End in RIA | 0 | - | 4.93 | 126,285 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,271 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,974 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,797 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,154 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,705 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,093 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,374 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,893 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,785 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,955 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,458 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,121 |
