| Pick a Picture - Animal Relations | 0 | - | 4.94 | 54,894 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,023 |
| Animals by Close-up Image | 0 | - | 4.42 | 216,952 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,275 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,945 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,164 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,647 |
| 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 | 108,118 |
| Animals A-Z by Picture | 0 | - | 4.08 | 65,952 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,795 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,919 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,904 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,236 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,236 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,456 |
| Animals in World History | 0 | - | 4.74 | 44,237 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,485 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,072 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,530 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,602 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,670 |
| Empires by Maps | 0 | - | 4.98 | 118,644 |
| Merged Company Logos #1 | 0 | - | 4.91 | 105,506 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,640 |
| 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 | 92,788 |
| Fish by Picture #2 | 0 | - | 4.08 | 18,415 |
| Flowers by Picture | 0 | - | 4.46 | 105,028 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,162 |
| 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 | 63,504 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,010 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 102,882 |
| Play-Doh People from History | 0 | - | 4.99 | 93,932 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,362 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 48,776 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 48,931 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,076 |
| All Country Flags of the World | 0 | - | 5.00 | 3,606,469 |
| Extinct Animals | 0 | - | 4.18 | 27,413 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,218 |
| Earliest Domestication of Animals | 0 | - | 4.33 | 28,213 |
| Animals in the News | 0 | - | 4.37 | 26,721 |
| Countries with Wild Lions | 0 | - | 4.77 | 25,998 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,258 |
| Megadiverse Countries | 0 | - | 4.97 | 133,944 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,527,173 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,792 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,951 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,700 |
| Birds by Picture #2 | 0 | - | 4.33 | 35,986 |
| Birds by Picture #3 | 0 | - | 4.24 | 32,881 |
| Asian Countries with NO Wolves | 0 | - | 4.60 | 18,623 |
| Old World... or New World? | 0 | - | 4.66 | 21,215 |
| Years in History by Picture | 0 | - | 4.44 | 35,135 |
| Make a Stained Glass Window | 0 | - | 5.00 | 67,863 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,277 |
| Flags with Crescents | 0 | - | 4.98 | 167,690 |
| Country Flag Trivia | 0 | - | 4.81 | 55,996 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,515 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,530 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,008 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,514 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,433 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,096 |
| Real vs. Fake Flags | 0 | - | 4.98 | 122,692 |
| National Football Team Logos | 0 | - | 4.84 | 178,818 |
| Merged Company Logos #2 | 0 | - | 4.75 | 76,819 |
| 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 | 83,397 |
| Countries with Fjords | 0 | - | 4.93 | 100,240 |
| Name that Object #1 | 0 | - | 3.56 | 96,318 |
| Flags to Languages | 0 | - | 4.95 | 172,592 |
| 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 | 32,456 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 62,342 |
| Fruits by Picture | 0 | - | 4.20 | 804,840 |
| Old Movies by Picture | 0 | - | 4.51 | 24,832 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,707 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,459 |
| Geography by Picture - B | 0 | - | 4.42 | 55,429 |
| Geography by Picture - H | 0 | - | 4.49 | 58,064 |
| 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 | 57,692 |
| Random Logos Quiz | 0 | - | 4.32 | 207,123 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 113,424 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,145 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,738 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,642 |
| Pictures by Letter - D | 0 | - | 4.16 | 37,326 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,538 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,337 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,650 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,500 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 532,576 |
| 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 | 76,062 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,281 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,756 |
| North Sea Countries | 0 | - | 4.92 | 86,633 |
| Black Sea Countries | 0 | - | 4.87 | 60,352 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,037 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,131 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,308 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,969 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,195 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,642 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,430 |
| Elements by Picture | 0 | - | 4.28 | 69,580 |
| Name that Object #2 | 0 | - | 3.64 | 15,336 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,172 |
| Islands by Picture | 0 | - | 4.29 | 105,977 |
| Name that Object #3 | 0 | - | 3.93 | 14,312 |
| Classic Movies by Movie Posters | 0 | - | 4.44 | 24,065 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 102,780 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 40,868 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 205,554 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,789 |
| International Footballers by Picture | 0 | - | 4.50 | 54,824 |
| Name that Historical Figure #2 | 0 | - | 4.43 | 282,798 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 106,701 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,327 |
| Geography by Picture - A | 0 | - | 4.39 | 60,064 |
| Geography by Picture - D | 0 | - | 4.15 | 45,510 |
| Geography by Picture - F | 0 | - | 4.31 | 50,841 |
| Geography by Picture - G | 0 | - | 4.38 | 47,805 |
| 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 | 56,923 |
| Geography by Picture - L | 0 | - | 4.37 | 58,776 |
| 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 | 46,926 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,525 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,544 |
| Flag Maths | 0 | - | 4.78 | 57,683 |
| Satellite Images #1 | 0 | - | 4.46 | 129,044 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,011 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,671 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,671 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,820 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,411 |
| Soccer Team Logos | 0 | - | 4.26 | 371,108 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,403,678 |
| Ultimate Car Logos Quiz | 0 | - | 4.79 | 176,533 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 259,434 |
| Video Game Logos Quiz | 0 | - | 4.40 | 182,772 |
| Movie Logos | 0 | - | 4.33 | 236,082 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,831 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,254 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,338 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,294 |
| Pictures by Letter - G | 0 | - | 4.14 | 27,940 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,350 |
| Pictures by Letter - F | 0 | - | 4.17 | 28,823 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,312 |
| Pictures by Letter - Y | 0 | - | 4.22 | 26,124 |
| Pictures by Letter - R | 0 | - | 4.09 | 24,601 |
| Pictures by Letter - K | 0 | - | 4.18 | 24,938 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,193 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,336 |
| Pictures by Letter - P | 0 | - | 4.05 | 25,879 |
| 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 | 54,106 |
| History by Picture - F | 0 | - | 4.35 | 37,604 |
| History by Picture - G | 0 | - | 4.40 | 41,871 |
| History by Picture - D | 0 | - | 4.29 | 44,027 |
| History by Picture - E | 0 | - | 4.27 | 43,646 |
| History by Picture - H | 0 | - | 4.37 | 36,558 |
| History by Picture - K | 0 | - | 4.35 | 33,123 |
| History by Picture - M | 0 | - | 4.17 | 35,933 |
| History by Picture - N | 0 | - | 4.40 | 41,019 |
| History by Picture - O | 0 | - | 4.39 | 36,064 |
| History by Picture - T | 0 | - | 4.20 | 33,112 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 56,894 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 149,693 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,400 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,359 |
| Animal Adjectives | 0 | - | 4.77 | 59,843 |
| Animals - Taxonomy to Common Name | 0 | - | 4.79 | 28,110 |
| Animals: No Vowels #1 | 0 | - | 4.57 | 63,613 |
| 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 | 74,264 |
| African Great Lakes | 0 | - | 4.82 | 65,250 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,769 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,962 |
