| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 728,077 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,243 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,399 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,636,266 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,106,663 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,776 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 166,630 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 119,145 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,923 |
| Countries with Four Letters | 0 | - | 4.99 | 423,659 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,125 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 65,044 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,634,555 |
| Landlocked Countries | 0 | - | 4.99 | 422,630 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 321,994 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,221 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 183,533 |
| Country Chain | 0 | - | 4.96 | 217,740 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,586 |
| Countries by Emojis | 0 | - | 4.99 | 240,618 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,171 |
| Islands by Country #1 | 0 | - | 4.90 | 175,612 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,768 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,146 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,904 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,783,341 |
| Name a Valid Country #3 | 0 | - | 4.99 | 263,838 |
| Name a Valid Country #1 | 0 | - | 4.99 | 291,671 |
| Name a Valid Country #2 | 0 | - | 4.98 | 251,700 |
| Name a Valid Country #4 | 0 | - | 4.97 | 256,853 |
| Name a Valid Country #5 | 0 | - | 4.99 | 207,846 |
| Name a Valid Country #6 | 0 | - | 4.94 | 130,094 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,847 |
| Himalayan Countries | 0 | - | 4.95 | 139,029 |
| Andean Countries | 0 | - | 4.93 | 84,798 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,025 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,102 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,612 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,926 |
| Danube Countries | 0 | - | 4.97 | 72,098 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,130 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,498 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,452 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,941 |
| European Landlocked Countries | 0 | - | 4.99 | 147,233 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,769 |
| Countries with the Most Species | 0 | - | 4.99 | 103,309 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,888 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,631 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,750 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,597 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,320 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,742 |
| Countries in the Alps | 0 | - | 4.87 | 118,313 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,533 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,191 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,721 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,674 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,585 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,000 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,756 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,569 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,227 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,924 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,691 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,573 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,298 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,541 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,607 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,061 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,369 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,330 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,493 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,204 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,291 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,325 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,284 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,896 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,640 |
| Largest Countries By Category | 0 | - | 4.97 | 158,343 |
| Countries by Countries | 0 | - | 4.96 | 63,319 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,008 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,384 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,870 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 225,819 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,761 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,775 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,235 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,311 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,749 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,280 |
| Random Countries by Borders | 0 | - | 4.99 | 82,719 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,541 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,182 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,700 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,729 |
| Island Countries | 0 | - | 4.99 | 711,268 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,385,296 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,688 |
| Northernmost Countries | 0 | - | 4.99 | 362,281 |
| Countries of South America | 0 | - | 5.00 | 928,273 |
| Countries of Oceania | 0 | - | 5.00 | 1,058,102 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,879,295 |
| "Land" Countries | 0 | - | 4.98 | 337,534 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 385,243 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,081 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,715 |
| Five Biggest Immigrant Groups by Country #3 | 0 | - | 4.70 | 66,459 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 138,815 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,463 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,449,220 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,231 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,091 |
| Countries with Megacities | 0 | - | 4.99 | 265,016 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,909 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,585 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,168 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,655 |
| Countries by Official Language | 0 | - | 4.95 | 195,377 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,548 |
| Countries in their Native Language | 0 | - | 4.99 | 199,165 |
| Independence from Whom | 0 | - | 4.99 | 212,253 |
| Subdivisions by Country | 0 | - | 4.87 | 50,462 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,845 |
| Megadiverse Countries | 0 | - | 4.96 | 135,066 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,204 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,390 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,272 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,131 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,214 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,637 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,559 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,183 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,694 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,168 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,820 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,930 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,243 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,999 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,395 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,526 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,397 |
| World Map Quiz | 0 | - | 4.81 | 65,184 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,411 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,219 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,354 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,060 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,415 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,961 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,072 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,352 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,478 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,617 |
| Widest Countries East to West | 0 | - | 4.92 | 129,716 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,472 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,456 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,143 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,812 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,644 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,935 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,398 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,813 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 337,215 |
| Countries with Double Letters | 0 | - | 4.96 | 96,379 |
| Countries that End in N | 0 | - | 4.95 | 171,271 |
| Countries with Five Letters | 0 | - | 4.96 | 282,753 |
| Countries with Six Letters | 0 | - | 4.94 | 213,704 |
| Countries with W | 0 | - | 4.97 | 160,442 |
| Countries with Z | 0 | - | 4.98 | 291,617 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,801 |
| Countries That End in U | 0 | - | 4.95 | 120,900 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,559 |
| Countries that End in O | 0 | - | 4.92 | 159,555 |
| Countries that End in R | 0 | - | 4.87 | 119,003 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,765 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,230 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,760 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,529 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,453 |
| Countries That End in Y | 0 | - | 4.91 | 185,914 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,008 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,931 |
| Countries that End in I | 0 | - | 4.94 | 135,135 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,187 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,854 |
| Countries That End in NIA | 0 | - | 4.92 | 109,834 |
| Countries That End in BIA | 0 | - | 4.93 | 149,269 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,170 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,479 |
| Countries That End in RIA | 0 | - | 4.93 | 126,853 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,073 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,784 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,787 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,214 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,767 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,612 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,077 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,461 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,584 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,459 |
