| Regions of Countries #1 | 0 | - | 4.96 | 159,689 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,079 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,845 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 723,010 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,234 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,634,020 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,608,056 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,105,943 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,636 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 166,469 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 119,006 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,841 |
| Countries with Four Letters | 0 | - | 4.99 | 423,437 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,044 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,967 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 337,118 |
| Landlocked Countries | 0 | - | 4.99 | 422,298 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,113 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 183,426 |
| Country Chain | 0 | - | 4.96 | 217,592 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,439 |
| Countries by Emojis | 0 | - | 4.99 | 240,505 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,137 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 321,831 |
| Islands by Country #1 | 0 | - | 4.90 | 175,532 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,780,984 |
| Name a Valid Country #3 | 0 | - | 4.99 | 263,724 |
| Name a Valid Country #1 | 0 | - | 4.99 | 291,395 |
| Name a Valid Country #2 | 0 | - | 4.98 | 251,566 |
| Name a Valid Country #4 | 0 | - | 4.97 | 256,717 |
| Name a Valid Country #5 | 0 | - | 4.99 | 207,726 |
| Name a Valid Country #6 | 0 | - | 4.94 | 130,011 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,680 |
| Himalayan Countries | 0 | - | 4.95 | 138,891 |
| Andean Countries | 0 | - | 4.93 | 84,707 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,906 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,966 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,527 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,868 |
| Danube Countries | 0 | - | 4.97 | 72,056 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,070 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,464 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,370 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,862 |
| European Landlocked Countries | 0 | - | 4.99 | 147,186 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,710 |
| Countries with the Most Species | 0 | - | 4.99 | 103,271 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,829 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,613 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,735 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,570 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,259 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,705 |
| Countries in the Alps | 0 | - | 4.87 | 118,262 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,321 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,089 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,689 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,630 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,554 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,977 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,711 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,531 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,201 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,888 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,672 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,546 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,254 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,506 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,565 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,977 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,340 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,183 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,136 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,101 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,220 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,258 |
| Largest Countries By Category | 0 | - | 4.97 | 158,272 |
| Countries by Countries | 0 | - | 4.96 | 63,269 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,733 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,303 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,704 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,819 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,603 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,544 |
| Island Countries | 0 | - | 4.99 | 711,157 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,264 |
| Northernmost Countries | 0 | - | 4.99 | 362,101 |
| Mountains by Country | 0 | - | 4.56 | 81,845 |
| Countries of South America | 0 | - | 5.00 | 927,789 |
| Countries of Oceania | 0 | - | 5.00 | 1,057,562 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,878,326 |
| "Land" Countries | 0 | - | 4.98 | 337,429 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,197 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,368 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,293 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,869 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,615 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,384,449 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,970 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,358 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,754 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 225,670 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,674 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,158 |
| Random Countries by Borders | 0 | - | 4.99 | 82,678 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,477 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,979 |
| Countries with Megacities | 0 | - | 4.99 | 264,745 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,816 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,517 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,071 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,591 |
| Countries by Official Language | 0 | - | 4.95 | 195,313 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,468 |
| Countries in their Native Language | 0 | - | 4.99 | 199,105 |
| Independence from Whom | 0 | - | 4.99 | 212,172 |
| Subdivisions by Country | 0 | - | 4.86 | 50,440 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,790 |
| Megadiverse Countries | 0 | - | 4.96 | 135,045 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,150 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,377 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,252 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,119 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,177 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,614 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,516 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,051 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,676 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,159 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,734 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,906 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,224 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,985 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,372 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,512 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,278 |
| World Map Quiz | 0 | - | 4.81 | 65,140 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 138,710 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,450 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,421 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,382 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,150 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,314 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,025 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,289 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,924 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,040 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,323 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,459 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,594 |
| Widest Countries East to West | 0 | - | 4.92 | 129,678 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,464 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,420 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,132 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,789 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,625 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,899 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,384 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,805 |
| Companies by Country | 0 | - | 4.61 | 119,840 |
| Landforms by Country | 0 | - | 4.52 | 51,986 |
| Inventions by Country #1 | 0 | - | 4.47 | 55,092 |
| Airlines by Country | 0 | - | 4.52 | 135,551 |
| Countries with Double Letters | 0 | - | 4.96 | 96,295 |
| Countries that End in N | 0 | - | 4.95 | 171,180 |
| Countries with Five Letters | 0 | - | 4.96 | 282,595 |
| Countries with Six Letters | 0 | - | 4.94 | 213,622 |
| Countries with W | 0 | - | 4.97 | 160,372 |
| Countries with Z | 0 | - | 4.98 | 291,530 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,748 |
| Countries That End in U | 0 | - | 4.95 | 120,869 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,505 |
| Countries that End in O | 0 | - | 4.92 | 159,526 |
| Countries that End in R | 0 | - | 4.87 | 118,977 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,743 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,151 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,719 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,491 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,415 |
| Countries That End in Y | 0 | - | 4.91 | 185,890 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,958 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,882 |
| Countries that End in I | 0 | - | 4.94 | 135,110 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,142 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,831 |
| Countries That End in NIA | 0 | - | 4.92 | 109,800 |
| Countries That End in BIA | 0 | - | 4.93 | 149,231 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,138 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,447 |
| Countries That End in RIA | 0 | - | 4.93 | 126,819 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,036 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,689 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,736 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,161 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,722 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,587 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,048 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,450 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,543 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,434 |
