| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,601,102 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,093,285 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 68,516 |
| Empty World Map without 20 Random Countries | 0 | - | 4.93 | 136,029 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 380,218 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 214,754 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 138,030 |
| Random Countries by Borders | 0 | - | 4.99 | 81,894 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,917 |
| Random Capital to Country | 0 | - | 4.99 | 2,583,042 |
| Random World Capitals on a Map | 0 | - | 4.93 | 133,689 |
| Random Country to Capital | 0 | - | 4.98 | 914,394 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,115,057 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,759 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,165 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 116,988 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,717 |
| Countries with Four Letters | 0 | - | 4.99 | 419,977 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,574 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,720 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 75,083 |
| Landlocked Countries | 0 | - | 4.99 | 416,023 |
| Random Countries with Letters Missing | 0 | - | 4.51 | 93,875 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 278,099 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,821 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,937 |
| Country Chain | 0 | - | 4.96 | 216,312 |
| Countries by Emojis | 0 | - | 4.99 | 237,608 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,379 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 318,281 |
| Islands by Country #1 | 0 | - | 4.87 | 174,753 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,128 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,480 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,469 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,736,284 |
| Name a Valid Country #3 | 0 | - | 4.99 | 261,234 |
| Name a Valid Country #1 | 0 | - | 4.99 | 286,255 |
| Name a Valid Country #2 | 0 | - | 4.98 | 248,428 |
| Name a Valid Country #4 | 0 | - | 4.97 | 253,536 |
| Name a Valid Country #5 | 0 | - | 4.99 | 202,936 |
| Name a Valid Country #6 | 0 | - | 4.94 | 127,937 |
| Name a Valid Country #7 | 0 | - | 4.91 | 127,874 |
| Name a Valid Country #8 | 0 | - | 4.85 | 97,273 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 715,363 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,616 |
| Himalayan Countries | 0 | - | 4.95 | 136,236 |
| Andean Countries | 0 | - | 4.95 | 83,317 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,599 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,817 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,305 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,924 |
| Danube Countries | 0 | - | 4.97 | 71,333 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,113 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,788 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,018 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,972 |
| European Landlocked Countries | 0 | - | 4.99 | 146,051 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,659 |
| Countries with the Most Species | 0 | - | 4.99 | 97,364 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,799 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,297 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,473 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,113 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,761 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,130 |
| Countries in the Alps | 0 | - | 4.86 | 117,251 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,837 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,750 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,210 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,664 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,548 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,204 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,907 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,949 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,752 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,284 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,323 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,181 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,673 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,936 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,942 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,606 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,850 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,385 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,129 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,671 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,414 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,780 |
| Largest Countries By Category | 0 | - | 4.97 | 157,174 |
| Countries by Countries | 0 | - | 4.96 | 62,527 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,786 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,059 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,398 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,032 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,391 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,533 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,248 |
| Island Countries | 0 | - | 4.99 | 708,598 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,632 |
| Northernmost Countries | 0 | - | 4.99 | 359,066 |
| Countries of South America | 0 | - | 5.00 | 918,817 |
| Countries of Oceania | 0 | - | 5.00 | 1,045,626 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,856,579 |
| "Land" Countries | 0 | - | 4.98 | 334,277 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,808 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,649 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,676 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,478 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,067 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,368,902 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,109 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,861 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 234,473 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 223,612 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 191,022 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,957 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 78,030 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,777 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,119 |
| Countries with Megacities | 0 | - | 4.99 | 248,624 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,986 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,460 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,367 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,414 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 88,886 |
| Countries by Official Language | 0 | - | 4.95 | 193,788 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,278 |
| Countries in their Native Language | 0 | - | 4.99 | 197,437 |
| Independence from Whom | 0 | - | 4.99 | 210,399 |
| Subdivisions by Country | 0 | - | 4.86 | 50,170 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,219 |
| Megadiverse Countries | 0 | - | 4.96 | 134,497 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,644 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,056 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,595 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,936 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,082 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,176 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,473 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,503 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,333 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,795 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 76,069 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,555 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,652 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,622 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,827 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,162 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,043 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,351 |
| World Map Quiz | 0 | - | 4.81 | 63,938 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,040 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,649 |
| Countries by Founding Story | 0 | - | 4.95 | 76,816 |
| Countries by Road Signs | 0 | - | 4.98 | 53,346 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,948 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,606 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,325 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,538 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,192 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,391 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,572 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,112 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,598 |
| Widest Countries East to West | 0 | - | 4.92 | 129,095 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,307 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,575 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,738 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,918 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,919 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,304 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,978 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,657 |
| Countries with Double Letters | 0 | - | 4.96 | 93,819 |
| Countries that End in N | 0 | - | 4.94 | 157,253 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,216 |
| Countries with Six Letters | 0 | - | 4.93 | 210,849 |
| Countries with W | 0 | - | 4.97 | 158,506 |
| Countries with Z | 0 | - | 4.98 | 288,403 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,855 |
| Countries That End in U | 0 | - | 4.95 | 119,666 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,002 |
| Countries that End in O | 0 | - | 4.92 | 158,697 |
| Countries that End in R | 0 | - | 4.87 | 118,414 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,968 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,572 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,636 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,722 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,292 |
| Countries That End in Y | 0 | - | 4.90 | 185,325 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,739 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,999 |
| Countries that End in I | 0 | - | 4.94 | 134,594 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,599 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,360 |
| Countries That End in NIA | 0 | - | 4.92 | 109,225 |
| Countries That End in BIA | 0 | - | 4.93 | 148,457 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,344 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,704 |
| Countries That End in RIA | 0 | - | 4.93 | 126,259 |
