| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,733 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,631 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,160 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,620,356 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 165,536 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 118,193 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,413 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,474 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,492 |
| Random Capital to Country | 0 | - | 4.99 | 2,590,156 |
| Random Country to Capital | 0 | - | 4.98 | 919,826 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,100,507 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 450,437 |
| Countries with Four Letters | 0 | - | 4.99 | 422,135 |
| Last Names by Country of Origin | 0 | - | 4.63 | 156,449 |
| Boundary Waters | 0 | - | 4.92 | 88,442 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,130 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,028 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,364 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,425 |
| Capital Cities Chain | 0 | - | 4.83 | 82,678 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,832 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 200,448 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 181,335 |
| Country Chain | 0 | - | 4.96 | 217,007 |
| Countries by Emojis | 0 | - | 4.99 | 239,483 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 55,868 |
| Islands by Country #1 | 0 | - | 4.88 | 175,226 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,486 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,827 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,693 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 216,504 |
| Name a Valid Country #3 | 0 | - | 4.99 | 262,852 |
| Name a Valid Country #1 | 0 | - | 4.99 | 289,493 |
| Name a Valid Country #2 | 0 | - | 4.98 | 250,502 |
| Name a Valid Country #4 | 0 | - | 4.97 | 255,386 |
| Name a Valid Country #5 | 0 | - | 4.99 | 206,773 |
| Name a Valid Country #6 | 0 | - | 4.94 | 129,266 |
| Name a Valid Country #7 | 0 | - | 4.91 | 129,127 |
| Name a Valid Country #8 | 0 | - | 4.86 | 98,506 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 320,404 |
| Countries by Languages in 90 Seconds | 0 | - | 4.94 | 720,210 |
| The Only Country ... | 0 | - | 4.91 | 80,967 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,413,384 |
| Landlocked Countries | 0 | - | 4.99 | 419,897 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,837 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,132 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,061 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,725 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,424 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 235,926 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 224,895 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,075 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,726 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 139,397 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 570,735 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 79,416 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,051 |
| Random Countries by Borders | 0 | - | 4.99 | 82,383 |
| Random Name a Valid Country | 0 | - | 4.99 | 204,957 |
| Name a Valid Island Country | 0 | - | 4.96 | 114,860 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,322 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,558 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,072 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,762 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,985 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 109,931 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,286 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,737 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,866 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,075 |
| Word Scramble - Cities #1 | 0 | - | 4.50 | 99,206 |
| Largest World Cities With Five Letters | 0 | - | 4.53 | 66,961 |
| Cities Chain #2 | 0 | - | 4.42 | 56,356 |
| Cities Chain #1 | 0 | - | 4.61 | 66,610 |
| Name Any Valid U.S. City | 0 | - | 4.49 | 40,556 |
| World Capitals Quiz | 0 | - | 5.00 | 5,069,971 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 132,943 |
| Random World Capitals on a Map | 0 | - | 4.93 | 134,513 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 80,450 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 89,289 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,424 |
| Himalayan Countries | 0 | - | 4.95 | 137,855 |
| Andean Countries | 0 | - | 4.95 | 84,137 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,358 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,921 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,999 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,467 |
| Danube Countries | 0 | - | 4.97 | 71,759 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,694 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,156 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,844 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,921 |
| European Landlocked Countries | 0 | - | 4.99 | 146,889 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,269 |
| Countries with the Most Species | 0 | - | 4.99 | 103,028 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,431 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,464 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,635 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,388 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,064 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,461 |
| Countries in the Alps | 0 | - | 4.87 | 117,867 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,940 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,584 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,487 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,371 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,227 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,794 |
| Countries of the World - One Minute Sprint | 0 | - | 4.36 | 976,132 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,394 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,273 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,036 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,642 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,534 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,383 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,006 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,290 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,305 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,418 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,131 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,638 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,695 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,866 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,499 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,057 |
| Largest Countries By Category | 0 | - | 4.97 | 157,818 |
| Countries by Countries | 0 | - | 4.97 | 62,943 |
| Random Countries with Letters Missing | 0 | - | 4.51 | 95,561 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,368 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 137,732 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,186 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,495 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,878 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,743 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,443 |
| Musical Acts by Country #1 | 0 | - | 4.45 | 79,092 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,763,610 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 383,125 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,506 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,787 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,311 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,426 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,413 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,142 |
| Longest International Borders | 0 | - | 4.99 | 264,846 |
| Countries with Three Borders | 0 | - | 4.96 | 36,509 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,977 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,094 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,677 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 37,033 |
| Demonym of Every Country | 0 | - | 4.91 | 59,266 |
| Historical Middle Names | 0 | - | 4.16 | 35,762 |
| People with Food Names | 0 | - | 4.10 | 61,009 |
| First Names of Historical Figures #2 | 0 | - | 4.32 | 40,539 |
| First Names of Historical Figures #1 | 0 | - | 4.39 | 229,295 |
| Random Nicknames #1 | 0 | - | 4.11 | 34,842 |
| Birth Names | 0 | - | 4.30 | 61,752 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,388 |
| First Names of Scientists | 0 | - | 4.50 | 56,824 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,303 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,727 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,389 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,834 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,585,203 |
| Solve the Secret Capital City | 0 | - | 4.80 | 163,522 |
| Add A Letter - Make a Capital City | 0 | - | 4.46 | 32,422 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 75,437 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,054 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,869 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,896 |
| Island Countries | 0 | - | 4.99 | 710,163 |
| Countries that Produce the Most Cheese per Capita | 0 | - | 4.51 | 52,813 |
| Countries With One Word and Two U's | 0 | - | 4.45 | 50,905 |
| Top 10 Hottest Asian Countries | 0 | - | 4.63 | 49,146 |
| Random Countries Hidden in the World Map | 0 | - | 4.82 | 113,034 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,047,165 |
| Northernmost Countries | 0 | - | 4.99 | 360,957 |
| Countries That Produce the Most Spices | 0 | - | 4.44 | 41,582 |
| Countries by Milk Production | 0 | - | 4.54 | 43,960 |
| Foods by Country of Origin #1 | 0 | - | 4.40 | 336,539 |
| Mountains by Country | 0 | - | 4.56 | 81,761 |
| Islands by Country #2 | 0 | - | 4.80 | 77,396 |
| Countries of South America | 0 | - | 5.00 | 924,290 |
| Countries of Oceania | 0 | - | 5.00 | 1,053,073 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,869,950 |
| Name a Country A-Z | 0 | - | 5.00 | 243,140 |
| "Land" Countries | 0 | - | 4.98 | 336,047 |
| Countries Which Eat the Most Beef | 0 | - | 4.46 | 50,261 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 279,229 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 121,627 |
| Top World Languages | 0 | - | 4.92 | 821,467 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,370 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,279 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,307 |
| Countries with Megacities | 0 | - | 4.99 | 262,720 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,150 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,146 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,451 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,193 |
