| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,130 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,210 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,366 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,445 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,074 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,459 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,057 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,664 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,714 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,312 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,177 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,946 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,031 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,061 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,382 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,262 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,768 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,603 |
| Animals in World History | 0 | - | 4.74 | 44,351 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,486 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,866 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,642 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,212 |
| Empires by Maps | 0 | - | 4.98 | 119,428 |
| Merged Company Logos #1 | 0 | - | 4.91 | 105,918 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,777 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,740 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,607 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,864 |
| Fish by Picture #2 | 0 | - | 4.06 | 18,484 |
| Flowers by Picture | 0 | - | 4.46 | 105,135 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,387 |
| Countries with More Cows than People | 0 | - | 4.45 | 61,031 |
| North American Bird-Named Teams | 0 | - | 4.44 | 67,747 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,546 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,113 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 103,492 |
| Play-Doh People from History | 0 | - | 4.99 | 94,323 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,642 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 49,032 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 49,222 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,276 |
| All Country Flags of the World | 0 | - | 5.00 | 3,631,887 |
| Extinct Animals | 0 | - | 4.21 | 27,455 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,308 |
| Earliest Domestication of Animals | 0 | - | 4.34 | 28,229 |
| Animals in the News | 0 | - | 4.37 | 26,759 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,143 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,275 |
| Megadiverse Countries | 0 | - | 4.96 | 134,559 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,531,509 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,089,912 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 731,562 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,837 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,163 |
| Birds by Picture #3 | 0 | - | 4.24 | 33,012 |
| Asian Countries with NO Wolves | 0 | - | 4.60 | 18,720 |
| Old World... or New World? | 0 | - | 4.66 | 21,274 |
| Years in History by Picture | 0 | - | 4.44 | 35,329 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,150 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,542 |
| Flags with Crescents | 0 | - | 4.98 | 168,510 |
| Country Flag Trivia | 0 | - | 4.81 | 56,459 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,037 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,954 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,595 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,866 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,741 |
| Badly Drawn Flags #1 | 0 | - | 4.99 | 60,193 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,413 |
| Real vs. Fake Flags | 0 | - | 4.98 | 123,328 |
| National Football Team Logos | 0 | - | 4.85 | 179,553 |
| Merged Company Logos #2 | 0 | - | 4.75 | 77,124 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,225 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,725 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,750 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,568 |
| Countries with Fjords | 0 | - | 4.93 | 100,506 |
| Name that Object #1 | 0 | - | 3.56 | 96,389 |
| Flags to Languages | 0 | - | 4.95 | 173,054 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,785 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,216 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,664 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 62,725 |
| Terrestrial Biomes - Map Quiz | 0 | - | 4.99 | 16,782 |
| Fruits by Picture | 0 | - | 4.20 | 805,969 |
| Old Movies by Picture | 0 | - | 4.51 | 24,973 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,841 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,523 |
| Geography by Picture - B | 0 | - | 4.42 | 55,507 |
| Geography by Picture - H | 0 | - | 4.50 | 58,124 |
| Geography by Picture - N | 0 | - | 4.45 | 42,116 |
| Geography by Picture - R | 0 | - | 4.56 | 40,943 |
| Geography by Picture - T | 0 | - | 4.54 | 57,753 |
| Random Logos Quiz | 0 | - | 4.31 | 207,729 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 114,207 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,267 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,877 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,767 |
| Pictures by Letter - D | 0 | - | 4.13 | 37,446 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,661 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,639 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 336,566 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,721 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 535,655 |
| Largest Land Animals of Asia | 0 | - | 3.62 | 8,284 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,469 |
| Countries With No Rivers | 0 | - | 4.96 | 76,237 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,543 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,857 |
| North Sea Countries | 0 | - | 4.92 | 86,815 |
| Black Sea Countries | 0 | - | 4.87 | 60,455 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,159 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,262 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,055 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,257 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,790 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,544 |
| Elements by Picture | 0 | - | 4.27 | 69,746 |
| Name that Object #2 | 0 | - | 3.64 | 15,369 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,233 |
| Islands by Picture | 0 | - | 4.29 | 106,410 |
| Name that Object #3 | 0 | - | 3.93 | 14,340 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,171 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 103,240 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 41,012 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 205,828 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,891 |
| International Footballers by Picture | 0 | - | 4.50 | 55,175 |
| Name that Historical Figure #2 | 0 | - | 4.41 | 283,694 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 107,184 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,581 |
| Geography by Picture - A | 0 | - | 4.39 | 60,140 |
| Geography by Picture - D | 0 | - | 4.15 | 45,565 |
| Geography by Picture - F | 0 | - | 4.31 | 50,901 |
| Geography by Picture - G | 0 | - | 4.38 | 47,871 |
| Geography by Picture - J | 0 | - | 4.16 | 38,389 |
| Geography by Picture - K | 0 | - | 4.29 | 33,063 |
| Geography by Picture - C | 0 | - | 4.31 | 56,994 |
| Geography by Picture - L | 0 | - | 4.37 | 58,852 |
| Geography by Picture - M | 0 | - | 4.14 | 40,391 |
| Geography by Picture - P | 0 | - | 4.24 | 42,361 |
| Geography by Picture - S | 0 | - | 4.38 | 46,974 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 279,394 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,020 |
| Flag Maths | 0 | - | 4.64 | 57,712 |
| Satellite Images #1 | 0 | - | 4.46 | 129,185 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,149 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,788 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,792 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,890 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,670 |
| Soccer Team Logos | 0 | - | 4.26 | 372,639 |
| Brand Logos Quiz #1 | 0 | - | 4.82 | 2,411,934 |
| Ultimate Car Logos Quiz | 0 | - | 4.80 | 178,268 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 260,618 |
| Video Game Logos Quiz | 0 | - | 4.40 | 183,312 |
| Movie Logos | 0 | - | 4.33 | 237,144 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,250 |
| Brand Logos That Start with A | 0 | - | 4.52 | 69,796 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,376 |
| Pictures by Letter - G | 0 | - | 4.14 | 28,031 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,446 |
| Pictures by Letter - F | 0 | - | 4.17 | 28,924 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,373 |
| Pictures by Letter - Y | 0 | - | 4.22 | 26,194 |
| Pictures by Letter - R | 0 | - | 4.05 | 24,674 |
| Pictures by Letter - K | 0 | - | 4.18 | 25,023 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,290 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,408 |
| Pictures by Letter - P | 0 | - | 4.05 | 25,954 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,709 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,585 |
| History by Picture - A | 0 | - | 4.25 | 45,651 |
| History by Picture - B | 0 | - | 4.40 | 48,800 |
| History by Picture - C | 0 | - | 4.36 | 54,313 |
| History by Picture - F | 0 | - | 4.35 | 37,764 |
| History by Picture - G | 0 | - | 4.40 | 42,022 |
| History by Picture - D | 0 | - | 4.29 | 44,187 |
| History by Picture - E | 0 | - | 4.27 | 43,803 |
| History by Picture - H | 0 | - | 4.37 | 36,690 |
| History by Picture - K | 0 | - | 4.35 | 33,251 |
| History by Picture - M | 0 | - | 4.17 | 36,049 |
| History by Picture - N | 0 | - | 4.40 | 41,145 |
| History by Picture - O | 0 | - | 4.39 | 36,201 |
| History by Picture - T | 0 | - | 4.20 | 33,224 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 57,053 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 150,017 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,460 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,408 |
| Animal Adjectives | 0 | - | 4.77 | 59,921 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 28,194 |
| Animals: No Vowels #1 | 0 | - | 4.56 | 63,840 |
| Bird in the Answers | 0 | - | 4.11 | 33,441 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,136 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,401 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,433 |
| African Great Lakes | 0 | - | 4.82 | 65,725 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,038 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,151 |
