| Animals by Skeleton Image | 0 | - | 4.81 | 46,668 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,595 |
| Name that Bug | 0 | - | 4.12 | 45,589 |
| Animals by Close-up Image | 0 | - | 4.42 | 218,579 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,787 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,336 |
| Mammals by Picture #1 | 0 | - | 4.70 | 92,036 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,980 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,304 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,314 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,647 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,613 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,284 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,209 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,358 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,639 |
| Countries with the Most Sheep | 0 | - | 4.92 | 103,392 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,319 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,796 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,268 |
| Animals in World History | 0 | - | 4.74 | 44,579 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,668 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,752 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 55,039 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,937 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,738 |
| Top 15 Countries with the Most Cows | 0 | - | 4.73 | 107,314 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,122 |
| Empires by Maps | 0 | - | 4.98 | 120,971 |
| Fish by Picture #2 | 0 | - | 4.07 | 18,619 |
| Merged Company Logos #1 | 0 | - | 4.90 | 106,801 |
| Flowers by Picture | 0 | - | 4.46 | 105,732 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,815 |
| Countries with More Cows than People | 0 | - | 4.45 | 61,459 |
| North American Bird-Named Teams | 0 | - | 4.44 | 67,923 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,618 |
| All Country Flags of the World | 0 | - | 5.00 | 3,681,096 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,421 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,420 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,326 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,350 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 104,714 |
| Play-Doh People from History | 0 | - | 4.99 | 95,071 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 61,247 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 49,577 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 49,701 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,756 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,540,225 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,094,380 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 734,453 |
| Name the Cat Flags | 0 | - | 5.00 | 40,416 |
| Extinct Animals | 0 | - | 4.16 | 27,529 |
| Earliest Domestication of Animals | 0 | - | 4.34 | 28,276 |
| Animals in the News | 0 | - | 4.37 | 26,805 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 69,108 |
| Megadiverse Countries | 0 | - | 4.96 | 135,037 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,695 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,675 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,510 |
| Birds by Picture #3 | 0 | - | 4.24 | 33,321 |
| Flags with Crescents | 0 | - | 4.98 | 170,137 |
| Country Flag Trivia | 0 | - | 4.81 | 57,375 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,154 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,830 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,815 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,503 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,497 |
| Badly Drawn Flags #1 | 0 | - | 4.99 | 60,694 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,060 |
| Real vs. Fake Flags | 0 | - | 4.98 | 124,749 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 181,859 |
| National Football Team Logos | 0 | - | 4.85 | 180,869 |
| Asian Countries with NO Wolves | 0 | - | 4.60 | 18,899 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,283 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,773 |
| Old World... or New World? | 0 | - | 4.66 | 21,378 |
| Top Countries for Shark Attacks | 0 | - | 4.47 | 45,859 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,905 |
| Countries with Fjords | 0 | - | 4.94 | 101,053 |
| Years in History by Picture | 0 | - | 4.44 | 35,613 |
| Where Are These Doors? | 0 | - | 4.45 | 30,082 |
| Famous Foreheads #1 | 0 | - | 4.47 | 75,098 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,843 |
| Merged Company Logos #2 | 0 | - | 4.75 | 77,783 |
| Flags to Languages | 0 | - | 4.95 | 173,936 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,708 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 33,027 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 63,371 |
| Terrestrial Biomes - Map Quiz | 0 | - | 4.99 | 21,441 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,334 |
| Fruits by Picture | 0 | - | 4.19 | 808,013 |
| Old Movies by Picture | 0 | - | 4.51 | 25,152 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 47,136 |
| Name that Object #1 | 0 | - | 3.57 | 96,536 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 338,163 |
| Geography by Picture - B | 0 | - | 4.42 | 55,677 |
| Geography by Picture - H | 0 | - | 4.50 | 58,284 |
| Geography by Picture - N | 0 | - | 4.45 | 42,253 |
| Geography by Picture - R | 0 | - | 4.56 | 41,073 |
| Geography by Picture - T | 0 | - | 4.54 | 57,903 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,172 |
| Car Logos Quiz #1 | 0 | - | 4.52 | 540,996 |
| Random Logos Quiz | 0 | - | 4.33 | 208,809 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 115,602 |
| Pictures by Letter - A | 0 | - | 4.18 | 33,514 |
| Pictures by Letter - J | 0 | - | 4.31 | 40,138 |
| Pictures by Letter - B | 0 | - | 4.32 | 44,086 |
| Pictures by Letter - D | 0 | - | 4.14 | 37,683 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,882 |
| Largest Land Animals of Asia | 0 | - | 3.64 | 8,315 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,734 |
| Countries with the Most Lakes Over 100 Km² | 0 | - | 4.83 | 32,450 |
| Countries With No Rivers | 0 | - | 4.96 | 76,923 |
| Name a Valid Country on Each River | 0 | - | 4.95 | 62,295 |
| Rivers in History | 0 | - | 4.92 | 33,336 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,077 |
| North Sea Countries | 0 | - | 4.92 | 87,499 |
| Black Sea Countries | 0 | - | 4.87 | 60,654 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,454 |
| Caspian Sea Countries | 0 | - | 4.91 | 63,551 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,282 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,421 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 58,057 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,777 |
| Elements by Picture | 0 | - | 4.27 | 70,086 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,391 |
| Islands by Picture | 0 | - | 4.28 | 107,264 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,314 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 104,124 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 41,358 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 206,362 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 48,091 |
| International Footballers by Picture | 0 | - | 4.51 | 55,907 |
| Name that Historical Figure #2 | 0 | - | 4.42 | 285,095 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 108,014 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.51 | 50,961 |
| Geography by Picture - A | 0 | - | 4.39 | 60,327 |
| Geography by Picture - D | 0 | - | 4.15 | 45,711 |
| Geography by Picture - F | 0 | - | 4.31 | 51,073 |
| Geography by Picture - G | 0 | - | 4.39 | 48,003 |
| Geography by Picture - J | 0 | - | 4.16 | 38,516 |
| Geography by Picture - K | 0 | - | 4.29 | 33,176 |
| Geography by Picture - C | 0 | - | 4.31 | 57,131 |
| Geography by Picture - L | 0 | - | 4.37 | 59,043 |
| Geography by Picture - M | 0 | - | 4.14 | 40,508 |
| Geography by Picture - P | 0 | - | 4.24 | 42,482 |
| Geography by Picture - S | 0 | - | 4.38 | 47,090 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 281,023 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,855 |
| Flag Maths | 0 | - | 4.64 | 57,792 |
| Satellite Images #1 | 0 | - | 4.47 | 129,492 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,407 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,994 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,013 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,046 |
| Cities by Picture #1 | 0 | - | 4.73 | 86,191 |
| Soccer Team Logos | 0 | - | 4.26 | 375,675 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,428,928 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 262,681 |
| Video Game Logos Quiz | 0 | - | 4.40 | 184,388 |
| Movie Logos | 0 | - | 4.33 | 239,171 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,677 |
| History by Picture - A | 0 | - | 4.26 | 45,941 |
| History by Picture - B | 0 | - | 4.40 | 49,126 |
| History by Picture - C | 0 | - | 4.36 | 54,644 |
| History by Picture - F | 0 | - | 4.35 | 38,006 |
| History by Picture - G | 0 | - | 4.40 | 42,257 |
| History by Picture - D | 0 | - | 4.29 | 44,445 |
| History by Picture - E | 0 | - | 4.25 | 44,060 |
| History by Picture - H | 0 | - | 4.37 | 36,903 |
| History by Picture - K | 0 | - | 4.35 | 33,458 |
| History by Picture - M | 0 | - | 4.17 | 36,238 |
| History by Picture - N | 0 | - | 4.40 | 41,367 |
| History by Picture - O | 0 | - | 4.39 | 36,405 |
| History by Picture - T | 0 | - | 4.20 | 33,399 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 57,420 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 150,706 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,563 |
| Words Containing Animals #2 | 0 | - | 4.09 | 34,466 |
| Animal Adjectives | 0 | - | 4.77 | 60,076 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 28,342 |
| Animals: No Vowels #1 | 0 | - | 4.56 | 64,198 |
| Bird in the Answers | 0 | - | 4.11 | 33,813 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,208 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,543 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,812 |
| African Great Lakes | 0 | - | 4.82 | 66,527 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,662 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,580 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,487 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,555 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 269,262 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,837 |
| Name that Object #2 | 0 | - | 3.64 | 15,470 |
| Authors by Picture | 0 | - | 4.48 | 25,561 |
| Name that Object #3 | 0 | - | 3.93 | 14,425 |
| Fruit and Vegetable Emojis | 0 | - | 4.45 | 90,362 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,782 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 55,957 |
| Planets By Picture Quiz | 0 | - | 4.49 | 57,024 |
