| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,587,454 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 711,409 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,667 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,621 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,825 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,745 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,133 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 116,091 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,215 |
| Countries of Africa | 0 | - | 5.00 | 2,507,589 |
| Countries with Four Letters | 0 | - | 4.99 | 418,484 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,822 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,174 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,911,351 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,380 |
| Landlocked Countries | 0 | - | 4.99 | 413,503 |
| Countries of the World - One Minute Sprint | 0 | - | 4.35 | 956,142 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,972 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,300 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,423 |
| Country Chain | 0 | - | 4.96 | 215,710 |
| Countries by Emojis | 0 | - | 4.99 | 236,142 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,097 |
| Islands by Country #1 | 0 | - | 4.87 | 174,471 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,910 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,272 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,329 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,715,782 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,787 |
| Name a Valid Country #1 | 0 | - | 4.99 | 283,444 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,367 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,546 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,775 |
| Name a Valid Country #6 | 0 | - | 4.95 | 126,376 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,544 |
| Himalayan Countries | 0 | - | 4.95 | 135,322 |
| Andean Countries | 0 | - | 4.94 | 82,805 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,204 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,171 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,880 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,585 |
| Danube Countries | 0 | - | 4.97 | 71,068 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,746 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,527 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,449 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,371 |
| European Landlocked Countries | 0 | - | 4.99 | 145,742 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,186 |
| Countries with the Most Species | 0 | - | 4.99 | 95,235 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,323 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,197 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,365 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,430 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,442 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,951 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,569 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,943 |
| Countries in the Alps | 0 | - | 4.86 | 116,803 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,549 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,240 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,996 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,409 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,147 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,992 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,559 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,743 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,233 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,040 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,193 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,038 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,445 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,731 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,743 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,038 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,631 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,333 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,252 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,759 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,229 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,649 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,597 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,332 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,843 |
| Largest Countries By Category | 0 | - | 4.97 | 156,742 |
| Countries by Countries | 0 | - | 4.96 | 62,249 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,543 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,790 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,305 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,368 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,423 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,960 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,757 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,592 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,745 |
| Countries that Start with A | 0 | - | 4.97 | 2,146,556 |
| Countries that Start with B | 0 | - | 4.95 | 2,279,655 |
| Countries that Start with C | 0 | - | 4.96 | 1,810,125 |
| Countries that Start with D | 0 | - | 4.96 | 701,411 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,385 |
| Countries that Start with G | 0 | - | 4.97 | 1,492,635 |
| Countries that Start with H | 0 | - | 4.96 | 597,861 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,161 |
| Countries that Start with J | 0 | - | 4.98 | 595,923 |
| Countries that Start with K | 0 | - | 4.97 | 809,309 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,753 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,629 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,436 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,360 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,136 |
| Countries that Start with U | 0 | - | 4.97 | 899,861 |
| Countries that Start with V | 0 | - | 4.98 | 605,039 |
| Countries that Start with F | 0 | - | 4.83 | 612,114 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,203 |
| Random Countries by Borders | 0 | - | 4.99 | 81,661 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,193 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.95 | 236,401 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,775 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,085 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,794 |
| Island Countries | 0 | - | 4.99 | 707,577 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,035 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,334 |
| Northernmost Countries | 0 | - | 4.99 | 357,672 |
| Countries of South America | 0 | - | 5.00 | 914,537 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,233 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,847,992 |
| "Land" Countries | 0 | - | 4.98 | 333,621 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 378,513 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 134,790 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,899 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,584 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,134 |
| Countries with Megacities | 0 | - | 4.99 | 246,792 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,055 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,931 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,479 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,822 |
| Countries by Official Language | 0 | - | 4.95 | 192,751 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,095 |
| Countries in their Native Language | 0 | - | 4.99 | 196,618 |
| Independence from Whom | 0 | - | 4.99 | 209,661 |
| Subdivisions by Country | 0 | - | 4.86 | 50,063 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,727 |
| Megadiverse Countries | 0 | - | 4.97 | 133,891 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,779 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,917 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,425 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,856 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,641 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,991 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,922 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,135 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,209 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,738 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,551 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,408 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,485 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,493 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,661 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,018 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,551 |
| World Map Quiz | 0 | - | 4.81 | 63,491 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,618 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,319 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,330 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,977 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,936 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,721 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,845 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,052 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,266 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,940 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,330 |
| Widest Countries East to West | 0 | - | 4.92 | 128,598 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,215 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,195 |
| 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 | 93,681 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,620 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,031 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,050 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,577 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 334,856 |
| Countries with Double Letters | 0 | - | 4.97 | 93,369 |
| Countries that End in N | 0 | - | 4.94 | 156,708 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,666 |
| Countries with Six Letters | 0 | - | 4.93 | 210,335 |
| Countries with W | 0 | - | 4.97 | 158,212 |
| Countries with Z | 0 | - | 4.98 | 287,850 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,534 |
| Countries That End in U | 0 | - | 4.95 | 119,511 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,523 |
| Countries that End in O | 0 | - | 4.92 | 158,545 |
| Countries that End in R | 0 | - | 4.87 | 118,267 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,855 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,994 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,310 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,481 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,999 |
| Countries That End in Y | 0 | - | 4.90 | 185,196 |
