| Pick a Picture - Animal Relations | 0 | - | 4.94 | 54,816 |
| Animals by Skeleton Image | 0 | - | 4.80 | 45,966 |
| Animals by Close-up Image | 0 | - | 4.42 | 216,550 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,220 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,906 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,084 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,588 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,297 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,405 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,066 |
| Animals A-Z by Picture | 0 | - | 4.08 | 65,878 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,757 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,888 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,846 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,192 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,223 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,378 |
| Animals in World History | 0 | - | 4.74 | 44,208 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,468 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,009 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,463 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,587 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,495 |
| Empires by Maps | 0 | - | 4.98 | 118,395 |
| Merged Company Logos #1 | 0 | - | 4.91 | 105,398 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,608 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,595 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,506 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,767 |
| Fish by Picture #2 | 0 | - | 4.08 | 18,392 |
| Flowers by Picture | 0 | - | 4.46 | 105,000 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,092 |
| Countries with More Cows than People | 0 | - | 4.43 | 54,619 |
| North American Bird-Named Teams | 0 | - | 4.43 | 67,612 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,503 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,986 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 102,715 |
| Play-Doh People from History | 0 | - | 4.99 | 93,823 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,288 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 48,718 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 48,869 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,011 |
| All Country Flags of the World | 0 | - | 5.00 | 3,600,083 |
| Extinct Animals | 0 | - | 4.18 | 27,401 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,202 |
| Earliest Domestication of Animals | 0 | - | 4.33 | 28,208 |
| Animals in the News | 0 | - | 4.37 | 26,716 |
| Countries with Wild Lions | 0 | - | 4.77 | 25,967 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,252 |
| Megadiverse Countries | 0 | - | 4.97 | 133,875 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,525,958 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,210 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,524 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,659 |
| Birds by Picture #2 | 0 | - | 4.33 | 35,933 |
| Birds by Picture #3 | 0 | - | 4.24 | 32,825 |
| Asian Countries with NO Wolves | 0 | - | 4.60 | 18,602 |
| Old World... or New World? | 0 | - | 4.66 | 21,199 |
| Years in History by Picture | 0 | - | 4.44 | 35,091 |
| Make a Stained Glass Window | 0 | - | 5.00 | 67,792 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,200 |
| Flags with Crescents | 0 | - | 4.98 | 167,492 |
| Country Flag Trivia | 0 | - | 4.81 | 55,895 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,364 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,427 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,868 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,429 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,354 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,002 |
| Real vs. Fake Flags | 0 | - | 4.98 | 122,507 |
| National Football Team Logos | 0 | - | 4.84 | 178,591 |
| Merged Company Logos #2 | 0 | - | 4.75 | 76,717 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,192 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,688 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,669 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,368 |
| Countries with Fjords | 0 | - | 4.93 | 100,183 |
| Name that Object #1 | 0 | - | 3.56 | 96,296 |
| Flags to Languages | 0 | - | 4.95 | 172,444 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,738 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,149 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,370 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 62,274 |
| Fruits by Picture | 0 | - | 4.20 | 804,538 |
| Old Movies by Picture | 0 | - | 4.51 | 24,783 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,665 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,440 |
| Geography by Picture - B | 0 | - | 4.42 | 55,403 |
| Geography by Picture - H | 0 | - | 4.49 | 58,038 |
| Geography by Picture - N | 0 | - | 4.45 | 42,044 |
| Geography by Picture - R | 0 | - | 4.55 | 40,874 |
| Geography by Picture - T | 0 | - | 4.54 | 57,673 |
| Random Logos Quiz | 0 | - | 4.32 | 206,974 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 113,206 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,119 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,712 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,608 |
| Pictures by Letter - D | 0 | - | 4.16 | 37,300 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,516 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,237 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,444 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,409 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 531,825 |
| Largest Land Animals of Asia | 0 | - | 3.62 | 8,255 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,285 |
| Countries With No Rivers | 0 | - | 4.96 | 76,015 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,223 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,736 |
| North Sea Countries | 0 | - | 4.92 | 86,590 |
| Black Sea Countries | 0 | - | 4.87 | 60,331 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,013 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,099 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,132 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,948 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,178 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,611 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,396 |
| Elements by Picture | 0 | - | 4.28 | 69,533 |
| Name that Object #2 | 0 | - | 3.64 | 15,319 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,155 |
| Islands by Picture | 0 | - | 4.29 | 105,853 |
| Name that Object #3 | 0 | - | 3.93 | 14,298 |
| Classic Movies by Movie Posters | 0 | - | 4.44 | 24,032 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 102,508 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 40,824 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 205,484 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,761 |
| International Footballers by Picture | 0 | - | 4.50 | 54,700 |
| Name that Historical Figure #2 | 0 | - | 4.43 | 282,550 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 106,588 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,280 |
| Geography by Picture - A | 0 | - | 4.39 | 60,045 |
| Geography by Picture - D | 0 | - | 4.15 | 45,485 |
| Geography by Picture - F | 0 | - | 4.31 | 50,821 |
| Geography by Picture - G | 0 | - | 4.38 | 47,782 |
| Geography by Picture - J | 0 | - | 4.16 | 38,333 |
| Geography by Picture - K | 0 | - | 4.28 | 33,011 |
| Geography by Picture - C | 0 | - | 4.31 | 56,903 |
| Geography by Picture - L | 0 | - | 4.37 | 58,753 |
| Geography by Picture - M | 0 | - | 4.14 | 40,343 |
| Geography by Picture - P | 0 | - | 4.24 | 42,296 |
| Geography by Picture - S | 0 | - | 4.38 | 46,903 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,293 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,413 |
| Flag Maths | 0 | - | 4.78 | 57,672 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 128,996 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,975 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,640 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,642 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,801 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,343 |
| Soccer Team Logos | 0 | - | 4.26 | 370,656 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,401,144 |
| Ultimate Car Logos Quiz | 0 | - | 4.79 | 176,090 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 259,152 |
| Video Game Logos Quiz | 0 | - | 4.40 | 182,588 |
| Movie Logos | 0 | - | 4.33 | 235,762 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,733 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,167 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,208 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,273 |
| Pictures by Letter - G | 0 | - | 4.14 | 27,906 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,325 |
| Pictures by Letter - F | 0 | - | 4.17 | 28,798 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,290 |
| Pictures by Letter - Y | 0 | - | 4.22 | 26,101 |
| Pictures by Letter - R | 0 | - | 4.09 | 24,575 |
| Pictures by Letter - K | 0 | - | 4.18 | 24,915 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,175 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,316 |
| Pictures by Letter - P | 0 | - | 4.05 | 25,857 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,602 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,466 |
| History by Picture - A | 0 | - | 4.25 | 45,448 |
| History by Picture - B | 0 | - | 4.40 | 48,559 |
| History by Picture - C | 0 | - | 4.36 | 54,064 |
| History by Picture - F | 0 | - | 4.35 | 37,573 |
| History by Picture - G | 0 | - | 4.40 | 41,834 |
| History by Picture - D | 0 | - | 4.29 | 43,993 |
| History by Picture - E | 0 | - | 4.27 | 43,613 |
| History by Picture - H | 0 | - | 4.37 | 36,531 |
| History by Picture - K | 0 | - | 4.35 | 33,093 |
| History by Picture - M | 0 | - | 4.17 | 35,904 |
| History by Picture - N | 0 | - | 4.40 | 40,982 |
| History by Picture - O | 0 | - | 4.39 | 36,025 |
| History by Picture - T | 0 | - | 4.20 | 33,086 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 56,827 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 149,601 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,382 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,349 |
| Animal Adjectives | 0 | - | 4.77 | 59,823 |
| Animals - Taxonomy to Common Name | 0 | - | 4.79 | 28,092 |
| Animals: No Vowels #1 | 0 | - | 4.57 | 63,559 |
| Bird in the Answers | 0 | - | 4.10 | 33,269 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,096 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,332 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,213 |
| African Great Lakes | 0 | - | 4.82 | 65,107 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,682 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,881 |
