| Name a Valid Country Bordering Each Sea | 0 | - | 4.91 | 115,986 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,191 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,734 |
| African Great Lakes | 0 | - | 4.82 | 66,528 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,523 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,471 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,525 |
| Sea in the Answers | 0 | - | 4.08 | 49,030 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 48,978 |
| South China Sea Countries | 0 | - | 4.78 | 57,756 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,957 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,354 |
| Landforms by Country | 0 | - | 4.52 | 51,984 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,120 |
| Seas of Europe | 0 | - | 4.37 | 84,727 |
| Capitals by River | 0 | - | 4.55 | 48,345 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,647 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,633,496 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,148 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,824 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,239 |
| Random Capital to Country | 0 | - | 4.99 | 2,594,925 |
| Random Country to Capital | 0 | - | 4.98 | 922,946 |
| Last Names by Country of Origin | 0 | - | 4.64 | 156,725 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,105,794 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,981 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,304 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,597 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 166,426 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 118,965 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,822 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,314 |
| Countries with Four Letters | 0 | - | 4.99 | 423,401 |
| African Physical Geography | 0 | - | 4.51 | 31,744 |
| Asian Physical Geography | 0 | - | 4.61 | 35,564 |
| Rivers of the United States | 0 | - | 4.93 | 66,348 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,024 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,942 |
| Capital Cities Chain | 0 | - | 4.84 | 82,968 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,123 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,096 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 183,392 |
| Country Chain | 0 | - | 4.96 | 217,481 |
| Countries by Emojis | 0 | - | 4.99 | 240,477 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,124 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 321,807 |
| Islands by Country #1 | 0 | - | 4.90 | 175,501 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,664 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,054 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,826 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 217,441 |
| Countries with the Most Sheep | 0 | - | 4.92 | 103,393 |
| Name a Valid Country #3 | 0 | - | 4.99 | 263,699 |
| Name a Valid Country #1 | 0 | - | 4.99 | 291,339 |
| Name a Valid Country #2 | 0 | - | 4.98 | 251,533 |
| Name a Valid Country #4 | 0 | - | 4.97 | 256,693 |
| Name a Valid Country #5 | 0 | - | 4.99 | 207,697 |
| Name a Valid Country #6 | 0 | - | 4.94 | 129,991 |
| Name a Valid Country #7 | 0 | - | 4.91 | 129,736 |
| Name a Valid Country #8 | 0 | - | 4.86 | 99,097 |
| Bodies of Water by Satellite Image #1 | 0 | - | 4.19 | 72,140 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 722,919 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 33,028 |
| Top 10 African Countries by Coastline | 0 | - | 4.29 | 47,951 |
| The Only Country ... | 0 | - | 4.91 | 81,425 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,192 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,364 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,282 |
| Countries With No Rivers | 0 | - | 4.96 | 76,926 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,867 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,614 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,733 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 225,647 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,663 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,152 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 140,212 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 80,182 |
| Name a Valid Country on Each River | 0 | - | 4.95 | 62,296 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,668 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,218 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,268 |
| Random Countries by Borders | 0 | - | 4.99 | 82,668 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 384,934 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,458 |
| Geological Extremes | 0 | - | 4.34 | 40,061 |
| European Physical Geography | 0 | - | 4.26 | 33,542 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 87,965 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 56,585 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,396 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,796 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,947 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,650 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,361 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,616 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,425 |
| Random World Capitals on a Map | 0 | - | 4.93 | 134,897 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 80,779 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 89,520 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 138,673 |
| National Animals | 0 | - | 4.24 | 89,775 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,662 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,813 |
| Bodies of Water by Satellite Image #2 | 0 | - | 4.36 | 19,730 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 30,031 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,580 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,396 |
| People with Animal Names #1 | 0 | - | 3.97 | 42,563 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,865 |
| Boundary Waters | 0 | - | 4.92 | 88,588 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,266 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,296 |
| Word Scramble - Cities #1 | 0 | - | 4.50 | 99,312 |
| Largest World Cities With Five Letters | 0 | - | 4.53 | 67,146 |
| Cities Chain #2 | 0 | - | 4.42 | 56,435 |
| Cities Chain #1 | 0 | - | 4.61 | 66,688 |
| Name Any Valid U.S. City | 0 | - | 4.49 | 40,697 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 75,664 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,500 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,602,586 |
| Countries of the World - One Minute Sprint | 0 | - | 4.36 | 978,789 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 55,039 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,937 |
| Random Countries with Letters Missing | 0 | - | 4.51 | 96,020 |
| Random Countries Hidden in the World Map | 0 | - | 4.82 | 113,641 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 337,095 |
| Musical Acts by Country #1 | 0 | - | 4.45 | 79,249 |
| Top 15 Countries with the Most Cows | 0 | - | 4.73 | 107,315 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 279,896 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 122,165 |
| Oceania Physical Geography | 0 | - | 4.30 | 12,700 |
| South American Physical Geography | 0 | - | 4.58 | 18,367 |
| First Names of Scientists | 0 | - | 4.51 | 57,000 |
| World Capitals Quiz | 0 | - | 5.00 | 5,084,636 |
| Solve the Secret Capital City | 0 | - | 4.80 | 163,795 |
| Add A Letter - Make a Capital City | 0 | - | 4.46 | 32,451 |
| Landlocked Countries | 0 | - | 4.99 | 422,223 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,618 |
| Countries that Produce the Most Cheese per Capita | 0 | - | 4.51 | 52,911 |
| Bay of Bengal Countries With an Empty Map | 0 | - | 4.67 | 75,594 |
| Countries With One Word and Two U's | 0 | - | 4.45 | 51,108 |
| Top 10 Hottest Asian Countries | 0 | - | 4.63 | 49,296 |
| Countries That Produce the Most Spices | 0 | - | 4.44 | 41,623 |
| Countries by Milk Production | 0 | - | 4.54 | 44,082 |
| Mountains by Country | 0 | - | 4.56 | 81,845 |
| Islands by Country #2 | 0 | - | 4.80 | 77,558 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,780,459 |
| Countries with More Cows than People | 0 | - | 4.45 | 61,460 |
| Countries Which Eat the Most Beef | 0 | - | 4.46 | 50,311 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 29,063 |
| Countries Closest to the Aegean Sea | 0 | - | 4.75 | 66,938 |
| Mekong River Countries Empty Map Quiz | 0 | - | 4.80 | 53,327 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.95 | 240,760 |
| Historical Middle Names | 0 | - | 4.16 | 35,910 |
| People with Food Names | 0 | - | 4.10 | 61,192 |
| First Names of Historical Figures #2 | 0 | - | 4.32 | 40,662 |
| First Names of Historical Figures #1 | 0 | - | 4.39 | 229,583 |
| Random Nicknames #1 | 0 | - | 4.11 | 34,884 |
| Also Known As #1 | 0 | - | 4.18 | 31,701 |
| Birth Names | 0 | - | 4.31 | 61,816 |
| Animal Emojis | 0 | - | 4.74 | 84,840 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,719 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,043 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,443 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,452 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,765 |
| Fictional Cities | 0 | - | 4.26 | 47,957 |
| Word Scramble - Cities #2 | 0 | - | 4.54 | 25,175 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,609 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,591,078 |
| Word Scramble - National Capitals | 0 | - | 4.19 | 489,386 |
| World Cities by Clue #2 | 0 | - | 4.49 | 50,340 |
| Cities that End in A by Clue | 0 | - | 4.55 | 53,082 |
| Cities that End in O by Clue | 0 | - | 4.56 | 61,374 |
| Cities that End in N by Clue | 0 | - | 4.55 | 54,224 |
| Cities that End in I by Clue | 0 | - | 4.62 | 57,418 |
| Cities that End in S by Clue | 0 | - | 4.57 | 45,047 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,581 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,493 |
| Island Countries | 0 | - | 4.99 | 711,136 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,609 |
| Himalayan Countries | 0 | - | 4.95 | 138,855 |
| Andean Countries | 0 | - | 4.93 | 84,684 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,885 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,926 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,515 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,855 |
| Danube Countries | 0 | - | 4.97 | 72,043 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,059 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,456 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,364 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,850 |
| European Landlocked Countries | 0 | - | 4.99 | 147,176 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,691 |
| Countries with the Most Species | 0 | - | 4.99 | 103,267 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,814 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,607 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,732 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,563 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,254 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,692 |
