| Pick a Picture - Animal Relations | 0 | - | 4.94 | 54,837 |
| Animals by Skeleton Image | 0 | - | 4.80 | 45,981 |
| Animals by Close-up Image | 0 | - | 4.42 | 216,572 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,235 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,913 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,103 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,604 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,309 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,413 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,080 |
| Animals A-Z by Picture | 0 | - | 4.08 | 65,903 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,765 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,897 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,863 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,205 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,228 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,401 |
| Animals in World History | 0 | - | 4.74 | 44,216 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,473 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,031 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,486 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,590 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,543 |
| Empires by Maps | 0 | - | 4.98 | 118,494 |
| Merged Company Logos #1 | 0 | - | 4.91 | 105,427 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,616 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,601 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,515 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,772 |
| Fish by Picture #2 | 0 | - | 4.08 | 18,399 |
| Flowers by Picture | 0 | - | 4.46 | 105,006 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,112 |
| Countries with More Cows than People | 0 | - | 4.43 | 54,636 |
| North American Bird-Named Teams | 0 | - | 4.43 | 67,627 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,503 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,993 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 102,770 |
| Play-Doh People from History | 0 | - | 4.99 | 93,854 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,305 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 48,736 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 48,887 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,030 |
| All Country Flags of the World | 0 | - | 5.00 | 3,601,820 |
| Extinct Animals | 0 | - | 4.18 | 27,404 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,206 |
| Earliest Domestication of Animals | 0 | - | 4.33 | 28,208 |
| Animals in the News | 0 | - | 4.37 | 26,718 |
| Countries with Wild Lions | 0 | - | 4.77 | 25,978 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,252 |
| Megadiverse Countries | 0 | - | 4.97 | 133,897 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,526,294 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,361 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,644 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,669 |
| Birds by Picture #2 | 0 | - | 4.33 | 35,945 |
| Birds by Picture #3 | 0 | - | 4.24 | 32,842 |
| Asian Countries with NO Wolves | 0 | - | 4.60 | 18,611 |
| Old World... or New World? | 0 | - | 4.66 | 21,204 |
| Years in History by Picture | 0 | - | 4.44 | 35,105 |
| Make a Stained Glass Window | 0 | - | 5.00 | 67,808 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,225 |
| Flags with Crescents | 0 | - | 4.98 | 167,543 |
| Country Flag Trivia | 0 | - | 4.81 | 55,927 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,410 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,447 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,904 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,460 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,376 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,029 |
| Real vs. Fake Flags | 0 | - | 4.98 | 122,565 |
| National Football Team Logos | 0 | - | 4.84 | 178,659 |
| Merged Company Logos #2 | 0 | - | 4.75 | 76,750 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,193 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,691 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,674 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,376 |
| Countries with Fjords | 0 | - | 4.93 | 100,200 |
| Name that Object #1 | 0 | - | 3.56 | 96,302 |
| Flags to Languages | 0 | - | 4.95 | 172,480 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,739 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,154 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,399 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 62,293 |
| Fruits by Picture | 0 | - | 4.20 | 804,622 |
| Old Movies by Picture | 0 | - | 4.51 | 24,798 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,683 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,446 |
| Geography by Picture - B | 0 | - | 4.42 | 55,413 |
| Geography by Picture - H | 0 | - | 4.49 | 58,045 |
| Geography by Picture - N | 0 | - | 4.45 | 42,047 |
| Geography by Picture - R | 0 | - | 4.55 | 40,876 |
| Geography by Picture - T | 0 | - | 4.54 | 57,676 |
| Random Logos Quiz | 0 | - | 4.32 | 207,012 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 113,277 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,122 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,721 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,614 |
| Pictures by Letter - D | 0 | - | 4.16 | 37,304 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,522 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,267 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,505 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,437 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 532,022 |
| Largest Land Animals of Asia | 0 | - | 3.62 | 8,257 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,296 |
| Countries With No Rivers | 0 | - | 4.96 | 76,026 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,241 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,740 |
| North Sea Countries | 0 | - | 4.92 | 86,602 |
| Black Sea Countries | 0 | - | 4.87 | 60,341 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,016 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,110 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,174 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,953 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,187 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,621 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,406 |
| Elements by Picture | 0 | - | 4.28 | 69,549 |
| Name that Object #2 | 0 | - | 3.64 | 15,322 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,157 |
| Islands by Picture | 0 | - | 4.29 | 105,892 |
| Name that Object #3 | 0 | - | 3.93 | 14,303 |
| Classic Movies by Movie Posters | 0 | - | 4.44 | 24,045 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 102,625 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 40,843 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 205,499 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,772 |
| International Footballers by Picture | 0 | - | 4.50 | 54,732 |
| Name that Historical Figure #2 | 0 | - | 4.43 | 282,620 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 106,625 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,296 |
| Geography by Picture - A | 0 | - | 4.39 | 60,050 |
| Geography by Picture - D | 0 | - | 4.15 | 45,492 |
| Geography by Picture - F | 0 | - | 4.31 | 50,824 |
| Geography by Picture - G | 0 | - | 4.38 | 47,786 |
| Geography by Picture - J | 0 | - | 4.16 | 38,334 |
| Geography by Picture - K | 0 | - | 4.28 | 33,013 |
| Geography by Picture - C | 0 | - | 4.31 | 56,908 |
| Geography by Picture - L | 0 | - | 4.37 | 58,760 |
| Geography by Picture - M | 0 | - | 4.14 | 40,346 |
| Geography by Picture - P | 0 | - | 4.24 | 42,297 |
| Geography by Picture - S | 0 | - | 4.38 | 46,908 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,353 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,455 |
| Flag Maths | 0 | - | 4.78 | 57,676 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 129,006 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,983 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,651 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,649 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,808 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,357 |
| Soccer Team Logos | 0 | - | 4.26 | 370,792 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,401,906 |
| Ultimate Car Logos Quiz | 0 | - | 4.79 | 176,216 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 259,227 |
| Video Game Logos Quiz | 0 | - | 4.40 | 182,642 |
| Movie Logos | 0 | - | 4.33 | 235,875 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,759 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,191 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,256 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,278 |
| Pictures by Letter - G | 0 | - | 4.14 | 27,913 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,331 |
| Pictures by Letter - F | 0 | - | 4.17 | 28,806 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,295 |
| Pictures by Letter - Y | 0 | - | 4.22 | 26,105 |
| Pictures by Letter - R | 0 | - | 4.09 | 24,582 |
| Pictures by Letter - K | 0 | - | 4.18 | 24,919 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,177 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,321 |
| Pictures by Letter - P | 0 | - | 4.05 | 25,863 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,611 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,471 |
| History by Picture - A | 0 | - | 4.25 | 45,459 |
| History by Picture - B | 0 | - | 4.40 | 48,580 |
| History by Picture - C | 0 | - | 4.36 | 54,081 |
| History by Picture - F | 0 | - | 4.35 | 37,580 |
| History by Picture - G | 0 | - | 4.40 | 41,845 |
| History by Picture - D | 0 | - | 4.29 | 44,008 |
| History by Picture - E | 0 | - | 4.27 | 43,623 |
| History by Picture - H | 0 | - | 4.37 | 36,542 |
| History by Picture - K | 0 | - | 4.35 | 33,100 |
| History by Picture - M | 0 | - | 4.17 | 35,911 |
| History by Picture - N | 0 | - | 4.40 | 40,996 |
| History by Picture - O | 0 | - | 4.39 | 36,038 |
| History by Picture - T | 0 | - | 4.20 | 33,097 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 56,845 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 149,625 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,384 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,351 |
| Animal Adjectives | 0 | - | 4.77 | 59,828 |
| Animals - Taxonomy to Common Name | 0 | - | 4.79 | 28,095 |
| Animals: No Vowels #1 | 0 | - | 4.57 | 63,579 |
| Bird in the Answers | 0 | - | 4.10 | 33,280 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,104 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,337 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,227 |
| African Great Lakes | 0 | - | 4.82 | 65,151 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,705 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,908 |
