| Pick a Picture - Animal Relations | 0 | - | 4.94 | 54,888 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,019 |
| Animals by Close-up Image | 0 | - | 4.42 | 216,949 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,273 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,944 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,160 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,645 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,337 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,445 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,116 |
| Animals A-Z by Picture | 0 | - | 4.08 | 65,950 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,792 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,918 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,903 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,235 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,234 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,451 |
| Animals in World History | 0 | - | 4.74 | 44,236 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,482 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,069 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,527 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,602 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,656 |
| Empires by Maps | 0 | - | 4.98 | 118,636 |
| Merged Company Logos #1 | 0 | - | 4.91 | 105,500 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,638 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,621 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,524 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,786 |
| Fish by Picture #2 | 0 | - | 4.08 | 18,414 |
| Flowers by Picture | 0 | - | 4.46 | 105,027 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,159 |
| Countries with More Cows than People | 0 | - | 4.43 | 54,659 |
| North American Bird-Named Teams | 0 | - | 4.43 | 67,638 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,503 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,007 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 102,872 |
| Play-Doh People from History | 0 | - | 4.99 | 93,924 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,357 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 48,774 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 48,927 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,073 |
| All Country Flags of the World | 0 | - | 5.00 | 3,606,165 |
| Extinct Animals | 0 | - | 4.18 | 27,410 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,218 |
| Earliest Domestication of Animals | 0 | - | 4.33 | 28,211 |
| Animals in the News | 0 | - | 4.37 | 26,721 |
| Countries with Wild Lions | 0 | - | 4.77 | 25,996 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,258 |
| Megadiverse Countries | 0 | - | 4.97 | 133,937 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,527,095 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,755 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,919 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,697 |
| Birds by Picture #2 | 0 | - | 4.33 | 35,981 |
| Birds by Picture #3 | 0 | - | 4.24 | 32,880 |
| Asian Countries with NO Wolves | 0 | - | 4.60 | 18,622 |
| Old World... or New World? | 0 | - | 4.66 | 21,213 |
| Years in History by Picture | 0 | - | 4.44 | 35,131 |
| Make a Stained Glass Window | 0 | - | 5.00 | 67,859 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,274 |
| Flags with Crescents | 0 | - | 4.98 | 167,677 |
| Country Flag Trivia | 0 | - | 4.81 | 55,992 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,504 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,527 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,999 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,512 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,431 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,090 |
| Real vs. Fake Flags | 0 | - | 4.98 | 122,681 |
| National Football Team Logos | 0 | - | 4.84 | 178,803 |
| Merged Company Logos #2 | 0 | - | 4.75 | 76,815 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,203 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,696 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,688 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,394 |
| Countries with Fjords | 0 | - | 4.93 | 100,239 |
| Name that Object #1 | 0 | - | 3.56 | 96,318 |
| Flags to Languages | 0 | - | 4.95 | 172,578 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,743 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,161 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,452 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 62,342 |
| Fruits by Picture | 0 | - | 4.20 | 804,823 |
| Old Movies by Picture | 0 | - | 4.51 | 24,830 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,704 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,458 |
| Geography by Picture - B | 0 | - | 4.42 | 55,428 |
| Geography by Picture - H | 0 | - | 4.49 | 58,061 |
| Geography by Picture - N | 0 | - | 4.45 | 42,059 |
| Geography by Picture - R | 0 | - | 4.55 | 40,885 |
| Geography by Picture - T | 0 | - | 4.54 | 57,691 |
| Random Logos Quiz | 0 | - | 4.32 | 207,112 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 113,410 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,144 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,737 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,639 |
| Pictures by Letter - D | 0 | - | 4.16 | 37,326 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,537 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,332 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,640 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,496 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 532,534 |
| Largest Land Animals of Asia | 0 | - | 3.62 | 8,258 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,314 |
| Countries With No Rivers | 0 | - | 4.96 | 76,059 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,277 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,752 |
| North Sea Countries | 0 | - | 4.92 | 86,629 |
| Black Sea Countries | 0 | - | 4.87 | 60,350 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,034 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,130 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,299 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,968 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,193 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,641 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,430 |
| Elements by Picture | 0 | - | 4.28 | 69,577 |
| Name that Object #2 | 0 | - | 3.64 | 15,335 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,171 |
| Islands by Picture | 0 | - | 4.29 | 105,970 |
| Name that Object #3 | 0 | - | 3.93 | 14,311 |
| Classic Movies by Movie Posters | 0 | - | 4.44 | 24,063 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 102,767 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 40,867 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 205,552 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,787 |
| International Footballers by Picture | 0 | - | 4.50 | 54,818 |
| Name that Historical Figure #2 | 0 | - | 4.43 | 282,787 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 106,693 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,324 |
| Geography by Picture - A | 0 | - | 4.39 | 60,063 |
| Geography by Picture - D | 0 | - | 4.15 | 45,509 |
| Geography by Picture - F | 0 | - | 4.31 | 50,840 |
| Geography by Picture - G | 0 | - | 4.38 | 47,800 |
| Geography by Picture - J | 0 | - | 4.16 | 38,344 |
| Geography by Picture - K | 0 | - | 4.28 | 33,027 |
| Geography by Picture - C | 0 | - | 4.31 | 56,921 |
| Geography by Picture - L | 0 | - | 4.37 | 58,775 |
| Geography by Picture - M | 0 | - | 4.14 | 40,353 |
| Geography by Picture - P | 0 | - | 4.24 | 42,312 |
| Geography by Picture - S | 0 | - | 4.38 | 46,923 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,512 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,537 |
| Flag Maths | 0 | - | 4.78 | 57,682 |
| Satellite Images #1 | 0 | - | 4.46 | 129,043 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,011 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,669 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,671 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,819 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,405 |
| Soccer Team Logos | 0 | - | 4.26 | 371,080 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,403,538 |
| Ultimate Car Logos Quiz | 0 | - | 4.79 | 176,514 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 259,418 |
| Video Game Logos Quiz | 0 | - | 4.40 | 182,764 |
| Movie Logos | 0 | - | 4.33 | 236,068 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,825 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,250 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,332 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,294 |
| Pictures by Letter - G | 0 | - | 4.14 | 27,939 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,348 |
| Pictures by Letter - F | 0 | - | 4.17 | 28,823 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,311 |
| Pictures by Letter - Y | 0 | - | 4.22 | 26,122 |
| Pictures by Letter - R | 0 | - | 4.09 | 24,600 |
| Pictures by Letter - K | 0 | - | 4.18 | 24,937 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,193 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,335 |
| Pictures by Letter - P | 0 | - | 4.05 | 25,878 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,630 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,497 |
| History by Picture - A | 0 | - | 4.25 | 45,478 |
| History by Picture - B | 0 | - | 4.40 | 48,604 |
| History by Picture - C | 0 | - | 4.36 | 54,105 |
| History by Picture - F | 0 | - | 4.35 | 37,603 |
| History by Picture - G | 0 | - | 4.40 | 41,870 |
| History by Picture - D | 0 | - | 4.29 | 44,026 |
| History by Picture - E | 0 | - | 4.27 | 43,645 |
| History by Picture - H | 0 | - | 4.37 | 36,557 |
| History by Picture - K | 0 | - | 4.35 | 33,122 |
| History by Picture - M | 0 | - | 4.17 | 35,931 |
| History by Picture - N | 0 | - | 4.40 | 41,017 |
| History by Picture - O | 0 | - | 4.39 | 36,062 |
| History by Picture - T | 0 | - | 4.20 | 33,109 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 56,888 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 149,689 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,398 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,359 |
| Animal Adjectives | 0 | - | 4.77 | 59,843 |
| Animals - Taxonomy to Common Name | 0 | - | 4.79 | 28,109 |
| Animals: No Vowels #1 | 0 | - | 4.57 | 63,612 |
| Bird in the Answers | 0 | - | 4.10 | 33,300 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,110 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,343 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,262 |
| African Great Lakes | 0 | - | 4.82 | 65,245 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,763 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,956 |
