| Pick a Picture - Animal Relations | 0 | - | 4.94 | 54,903 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,040 |
| Animals by Close-up Image | 0 | - | 4.42 | 216,978 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,291 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,953 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,182 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,660 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,345 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,453 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,133 |
| Animals A-Z by Picture | 0 | - | 4.08 | 65,969 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,803 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,927 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,908 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,244 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,237 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,470 |
| Animals in World History | 0 | - | 4.74 | 44,249 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,493 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,088 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,540 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,608 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,728 |
| Empires by Maps | 0 | - | 4.98 | 118,695 |
| Merged Company Logos #1 | 0 | - | 4.91 | 105,534 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,653 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,630 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,531 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,793 |
| Fish by Picture #2 | 0 | - | 4.08 | 18,420 |
| Flowers by Picture | 0 | - | 4.46 | 105,039 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,182 |
| Countries with More Cows than People | 0 | - | 4.43 | 54,666 |
| North American Bird-Named Teams | 0 | - | 4.43 | 67,640 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,507 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,016 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 102,920 |
| Play-Doh People from History | 0 | - | 4.99 | 93,962 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,384 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 48,790 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 48,951 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,088 |
| All Country Flags of the World | 0 | - | 5.00 | 3,608,461 |
| Extinct Animals | 0 | - | 4.18 | 27,416 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,225 |
| Earliest Domestication of Animals | 0 | - | 4.33 | 28,217 |
| Animals in the News | 0 | - | 4.37 | 26,726 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,012 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,259 |
| Megadiverse Countries | 0 | - | 4.97 | 133,960 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,527,503 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,968 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 730,073 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,707 |
| Birds by Picture #2 | 0 | - | 4.33 | 35,994 |
| Birds by Picture #3 | 0 | - | 4.24 | 32,891 |
| Asian Countries with NO Wolves | 0 | - | 4.60 | 18,628 |
| Old World... or New World? | 0 | - | 4.66 | 21,221 |
| Years in History by Picture | 0 | - | 4.44 | 35,150 |
| Make a Stained Glass Window | 0 | - | 5.00 | 67,878 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,291 |
| Flags with Crescents | 0 | - | 4.98 | 167,770 |
| Country Flag Trivia | 0 | - | 4.81 | 56,026 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,543 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,545 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,060 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,540 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,449 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,124 |
| Real vs. Fake Flags | 0 | - | 4.98 | 122,732 |
| National Football Team Logos | 0 | - | 4.84 | 178,869 |
| Merged Company Logos #2 | 0 | - | 4.75 | 76,834 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,204 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,701 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,692 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,408 |
| Countries with Fjords | 0 | - | 4.93 | 100,257 |
| Name that Object #1 | 0 | - | 3.56 | 96,325 |
| Flags to Languages | 0 | - | 4.95 | 172,631 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,744 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,165 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,471 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 62,362 |
| Fruits by Picture | 0 | - | 4.20 | 804,933 |
| Old Movies by Picture | 0 | - | 4.51 | 24,841 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,719 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,463 |
| Geography by Picture - B | 0 | - | 4.42 | 55,436 |
| Geography by Picture - H | 0 | - | 4.50 | 58,068 |
| Geography by Picture - N | 0 | - | 4.45 | 42,066 |
| Geography by Picture - R | 0 | - | 4.55 | 40,889 |
| Geography by Picture - T | 0 | - | 4.54 | 57,694 |
| Random Logos Quiz | 0 | - | 4.31 | 207,168 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 113,483 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,153 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,751 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,652 |
| Pictures by Letter - D | 0 | - | 4.16 | 37,340 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,547 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,362 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,711 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,513 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 532,766 |
| Largest Land Animals of Asia | 0 | - | 3.62 | 8,261 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,319 |
| Countries With No Rivers | 0 | - | 4.96 | 76,069 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,300 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,766 |
| North Sea Countries | 0 | - | 4.92 | 86,650 |
| Black Sea Countries | 0 | - | 4.87 | 60,357 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,044 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,142 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,364 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,974 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,197 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,650 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,438 |
| Elements by Picture | 0 | - | 4.28 | 69,600 |
| Name that Object #2 | 0 | - | 3.64 | 15,339 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,172 |
| Islands by Picture | 0 | - | 4.29 | 106,012 |
| Name that Object #3 | 0 | - | 3.93 | 14,314 |
| Classic Movies by Movie Posters | 0 | - | 4.44 | 24,075 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 102,837 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 40,882 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 205,576 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,797 |
| International Footballers by Picture | 0 | - | 4.50 | 54,841 |
| Name that Historical Figure #2 | 0 | - | 4.43 | 282,859 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 106,736 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,342 |
| Geography by Picture - A | 0 | - | 4.39 | 60,066 |
| Geography by Picture - D | 0 | - | 4.15 | 45,517 |
| Geography by Picture - F | 0 | - | 4.31 | 50,846 |
| Geography by Picture - G | 0 | - | 4.38 | 47,813 |
| Geography by Picture - J | 0 | - | 4.16 | 38,349 |
| Geography by Picture - K | 0 | - | 4.29 | 33,030 |
| Geography by Picture - C | 0 | - | 4.31 | 56,927 |
| Geography by Picture - L | 0 | - | 4.37 | 58,782 |
| Geography by Picture - M | 0 | - | 4.14 | 40,356 |
| Geography by Picture - P | 0 | - | 4.24 | 42,317 |
| Geography by Picture - S | 0 | - | 4.38 | 46,929 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,609 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,582 |
| Flag Maths | 0 | - | 4.78 | 57,687 |
| Satellite Images #1 | 0 | - | 4.46 | 129,056 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,021 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,673 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,678 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,825 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,425 |
| Soccer Team Logos | 0 | - | 4.26 | 371,206 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,404,301 |
| Ultimate Car Logos Quiz | 0 | - | 4.80 | 176,664 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 259,513 |
| Video Game Logos Quiz | 0 | - | 4.40 | 182,808 |
| Movie Logos | 0 | - | 4.33 | 236,163 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,876 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,290 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,387 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,300 |
| Pictures by Letter - G | 0 | - | 4.14 | 27,945 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,355 |
| Pictures by Letter - F | 0 | - | 4.17 | 28,832 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,317 |
| Pictures by Letter - Y | 0 | - | 4.22 | 26,128 |
| Pictures by Letter - R | 0 | - | 4.09 | 24,607 |
| Pictures by Letter - K | 0 | - | 4.18 | 24,945 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,199 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,339 |
| Pictures by Letter - P | 0 | - | 4.05 | 25,885 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,639 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,503 |
| History by Picture - A | 0 | - | 4.25 | 45,490 |
| History by Picture - B | 0 | - | 4.40 | 48,617 |
| History by Picture - C | 0 | - | 4.36 | 54,123 |
| History by Picture - F | 0 | - | 4.35 | 37,619 |
| History by Picture - G | 0 | - | 4.40 | 41,882 |
| History by Picture - D | 0 | - | 4.29 | 44,042 |
| History by Picture - E | 0 | - | 4.27 | 43,658 |
| History by Picture - H | 0 | - | 4.37 | 36,570 |
| History by Picture - K | 0 | - | 4.35 | 33,138 |
| History by Picture - M | 0 | - | 4.17 | 35,937 |
| History by Picture - N | 0 | - | 4.40 | 41,025 |
| History by Picture - O | 0 | - | 4.39 | 36,070 |
| History by Picture - T | 0 | - | 4.20 | 33,119 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 56,904 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 149,719 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,404 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,365 |
| Animal Adjectives | 0 | - | 4.77 | 59,850 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 28,114 |
| Animals: No Vowels #1 | 0 | - | 4.57 | 63,636 |
| Bird in the Answers | 0 | - | 4.10 | 33,309 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,112 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,346 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,278 |
| African Great Lakes | 0 | - | 4.82 | 65,276 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,806 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,968 |
