| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 711,476 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,587,915 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,965 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,765 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,162 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 116,112 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,227 |
| Countries with Four Letters | 0 | - | 4.99 | 418,521 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,837 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,189 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,917,271 |
| Landlocked Countries | 0 | - | 4.99 | 413,577 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 317,012 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,318 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,434 |
| Country Chain | 0 | - | 4.96 | 215,723 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,327 |
| Countries by Emojis | 0 | - | 4.99 | 236,169 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,106 |
| Islands by Country #1 | 0 | - | 4.87 | 174,483 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,921 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,284 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,332 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,716,389 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,800 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,806 |
| Name a Valid Country #1 | 0 | - | 4.99 | 283,489 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,395 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,572 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,795 |
| Name a Valid Country #6 | 0 | - | 4.95 | 126,401 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,573 |
| Himalayan Countries | 0 | - | 4.95 | 135,340 |
| Andean Countries | 0 | - | 4.94 | 82,822 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,207 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,198 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,891 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,598 |
| Danube Countries | 0 | - | 4.97 | 71,077 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,756 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,532 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,466 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,385 |
| European Landlocked Countries | 0 | - | 4.99 | 145,747 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,201 |
| Countries with the Most Species | 0 | - | 4.99 | 95,239 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,334 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,197 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,368 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,441 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,450 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,957 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,572 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,950 |
| Countries in the Alps | 0 | - | 4.86 | 116,818 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,558 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,250 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,001 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,414 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,155 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,999 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,571 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,744 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,275 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,045 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,194 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,040 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,450 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,739 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,749 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,056 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,637 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,341 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,252 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,767 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,272 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,666 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,599 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,338 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,850 |
| Largest Countries By Category | 0 | - | 4.97 | 156,754 |
| Countries by Countries | 0 | - | 4.96 | 62,251 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,673 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,630 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,569 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,825 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,327 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,379 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,436 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,962 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,762 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,599 |
| Random Countries by Borders | 0 | - | 4.99 | 81,672 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,218 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,899 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,104 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,829 |
| Island Countries | 0 | - | 4.99 | 707,609 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,235 |
| 20 Random Country Flags | 0 | - | 4.99 | 604,419 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,408 |
| Northernmost Countries | 0 | - | 4.99 | 357,707 |
| Countries of South America | 0 | - | 5.00 | 914,636 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,367 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,205 |
| "Land" Countries | 0 | - | 4.98 | 333,643 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 378,555 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 134,805 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,447 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,018 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,621 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,190 |
| Countries with Megacities | 0 | - | 4.99 | 246,866 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,101 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,957 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,512 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,848 |
| Countries by Official Language | 0 | - | 4.95 | 192,764 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,124 |
| Countries in their Native Language | 0 | - | 4.99 | 196,631 |
| Independence from Whom | 0 | - | 4.99 | 209,683 |
| Subdivisions by Country | 0 | - | 4.86 | 50,064 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,743 |
| Megadiverse Countries | 0 | - | 4.97 | 133,898 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,796 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,918 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,427 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,858 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,654 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,997 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,006 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,141 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,211 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,743 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,563 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,413 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,493 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,502 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,672 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,021 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,578 |
| World Map Quiz | 0 | - | 4.81 | 63,492 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,656 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,326 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,344 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,983 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,945 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,740 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,849 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,057 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,273 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,941 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,333 |
| Widest Countries East to West | 0 | - | 4.92 | 128,600 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,217 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,205 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,562 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,684 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,626 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,038 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,050 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,581 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 334,966 |
| Countries with Double Letters | 0 | - | 4.97 | 93,386 |
| Countries that End in N | 0 | - | 4.94 | 156,819 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,679 |
| Countries with Six Letters | 0 | - | 4.93 | 210,358 |
| Countries with W | 0 | - | 4.97 | 158,223 |
| Countries with Z | 0 | - | 4.98 | 287,872 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,546 |
| Countries That End in U | 0 | - | 4.95 | 119,516 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,541 |
| Countries that End in O | 0 | - | 4.92 | 158,551 |
| Countries that End in R | 0 | - | 4.87 | 118,273 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,857 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,016 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,322 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,489 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,009 |
| Countries That End in Y | 0 | - | 4.90 | 185,201 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,368 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,684 |
| Countries that End in I | 0 | - | 4.94 | 134,410 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,190 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,192 |
| Countries That End in NIA | 0 | - | 4.92 | 109,008 |
| Countries That End in BIA | 0 | - | 4.92 | 147,712 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,054 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,480 |
| Countries That End in RIA | 0 | - | 4.93 | 126,079 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,005 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,179 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,517 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,886 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,354 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,927 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,116 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,640 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,507 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,811 |
