| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 114,630 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,583,318 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,086,145 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,419 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,753 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,773 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,038 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,099 |
| Countries with Four Letters | 0 | - | 4.99 | 418,011 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,734 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,532 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,263 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 162,810 |
| Solve the Secret Country #2 | 0 | - | 4.84 | 115,810 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,057 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,359 |
| Landforms by Country | 0 | - | 4.52 | 51,909 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,615 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,016 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,848,549 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,522 |
| Countries Closest to the Aegean Sea | 0 | - | 4.75 | 66,636 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,417 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,757 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 710,475 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,121 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,260 |
| Country Chain | 0 | - | 4.96 | 215,545 |
| Countries by Emojis | 0 | - | 4.99 | 235,775 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,014 |
| Small Countries with Large Economies | 0 | - | 4.63 | 89,278 |
| Islands by Country #1 | 0 | - | 4.87 | 174,389 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,836 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,202 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,275 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,468 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,333 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,524 |
| Name a Valid Country #1 | 0 | - | 4.99 | 282,831 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,064 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,220 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,540 |
| Name a Valid Country #6 | 0 | - | 4.94 | 126,168 |
| Countries With The Most Bird Species | 0 | - | 4.92 | 32,179 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,252 |
| Landlocked Countries | 0 | - | 4.99 | 412,851 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,307 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,362 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,247 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,279 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,763 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,510 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,556 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,240 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,517 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,062 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,251 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 135,867 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 76,924 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,405 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,534 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,709,460 |
| Countries with the Most Wolves | 0 | - | 4.92 | 106,947 |
| Random Countries by Borders | 0 | - | 4.99 | 81,572 |
| Random Name a Valid Country | 0 | - | 4.99 | 202,975 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 134,440 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 377,924 |
| African Great Lakes | 0 | - | 4.82 | 65,018 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,458 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 322,980 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,814 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 400,972 |
| Island Countries | 0 | - | 4.99 | 707,223 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,220 |
| Himalayan Countries | 0 | - | 4.95 | 135,043 |
| Andean Countries | 0 | - | 4.94 | 82,656 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,077 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 122,978 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,750 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,457 |
| Danube Countries | 0 | - | 4.97 | 70,989 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,634 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,450 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,279 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,191 |
| European Landlocked Countries | 0 | - | 4.99 | 145,663 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,044 |
| Countries with the Most Species | 0 | - | 4.99 | 95,184 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,188 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,173 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,332 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,907 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,507 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,862 |
| Countries in the Alps | 0 | - | 4.87 | 116,678 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,464 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,066 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,936 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,318 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,061 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,934 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,466 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,682 |
| Largest Country by Body of Water | 0 | - | 4.95 | 55,296 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,964 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,164 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 40,994 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,358 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,668 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,670 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,855 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,564 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,199 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,659 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,813 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,351 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,534 |
| Largest Countries By Category | 0 | - | 4.97 | 156,602 |
| Countries by Countries | 0 | - | 4.96 | 62,160 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,359,944 |
| Bay of Bengal Countries With an Empty Map | 0 | - | 4.64 | 75,166 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,204 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,931 |
| Random Countries Hidden in the World Map | 0 | - | 4.81 | 111,490 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,306 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,649 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,286 |
| Northernmost Countries | 0 | - | 4.99 | 357,222 |
| Countries of South America | 0 | - | 5.00 | 913,310 |
| Countries of Oceania | 0 | - | 5.00 | 1,038,525 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,845,014 |
| "Land" Countries | 0 | - | 4.98 | 333,407 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,202 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,482 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,420 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,002 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,852 |
| Countries with Megacities | 0 | - | 4.99 | 246,154 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,771 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,727 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,236 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,664 |
| Countries by Official Language | 0 | - | 4.95 | 192,581 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,853 |
| Countries in their Native Language | 0 | - | 4.99 | 196,458 |
| Independence from Whom | 0 | - | 4.99 | 209,446 |
| Subdivisions by Country | 0 | - | 4.86 | 50,032 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,579 |
| Megadiverse Countries | 0 | - | 4.97 | 133,829 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,643 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,875 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,370 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,833 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,530 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,937 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,585 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,059 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,173 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,711 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,367 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,360 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,423 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,441 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,600 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,978 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,331 |
| World Map Quiz | 0 | - | 4.81 | 63,350 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,193 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,213 |
| Countries by Founding Story | 0 | - | 4.95 | 76,441 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,143 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,874 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,847 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,496 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,759 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 92,958 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,166 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,875 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,250 |
| Widest Countries East to West | 0 | - | 4.92 | 128,515 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,191 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,073 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,519 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,620 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,515 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,945 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,031 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,551 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 334,395 |
| Countries with Double Letters | 0 | - | 4.97 | 93,210 |
| Countries that End in N | 0 | - | 4.94 | 156,278 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,471 |
| Countries with Six Letters | 0 | - | 4.93 | 210,170 |
| Countries with W | 0 | - | 4.97 | 158,088 |
| Countries with Z | 0 | - | 4.98 | 287,316 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,423 |
| Countries That End in U | 0 | - | 4.95 | 119,440 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,322 |
| Countries that End in O | 0 | - | 4.92 | 158,473 |
| Countries that End in R | 0 | - | 4.86 | 118,198 |
