| Animals by Skeleton Image | 0 | - | 4.81 | 46,453 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,382 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,752 |
| Name that Bug | 0 | - | 4.12 | 45,557 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,798 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,621 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,217 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,777 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,761 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,139 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,161 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,518 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,419 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,103 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,117 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,223 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,531 |
| Countries with the Most Sheep | 0 | - | 4.92 | 103,206 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,297 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,022 |
| Animals in World History | 0 | - | 4.74 | 44,476 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,456 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,702 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,957 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,861 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,675 |
| Top 15 Countries with the Most Cows | 0 | - | 4.73 | 106,521 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,737 |
| Empires by Maps | 0 | - | 4.98 | 120,322 |
| Fish by Picture #2 | 0 | - | 4.07 | 18,559 |
| Merged Company Logos #1 | 0 | - | 4.90 | 106,441 |
| Flowers by Picture | 0 | - | 4.46 | 105,626 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,610 |
| Countries with More Cows than People | 0 | - | 4.45 | 61,284 |
| North American Bird-Named Teams | 0 | - | 4.44 | 67,859 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,581 |
| All Country Flags of the World | 0 | - | 5.00 | 3,659,172 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,370 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,304 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,307 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,244 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 104,219 |
| Play-Doh People from History | 0 | - | 4.99 | 94,735 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,998 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 49,337 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 49,497 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,550 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,536,374 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,092,493 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 733,171 |
| Name the Cat Flags | 0 | - | 5.00 | 40,328 |
| Extinct Animals | 0 | - | 4.16 | 27,504 |
| Earliest Domestication of Animals | 0 | - | 4.34 | 28,258 |
| Animals in the News | 0 | - | 4.37 | 26,788 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 69,000 |
| Megadiverse Countries | 0 | - | 4.96 | 134,837 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,474 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,348 |
| Birds by Picture #3 | 0 | - | 4.24 | 33,173 |
| Flags with Crescents | 0 | - | 4.98 | 169,404 |
| Country Flag Trivia | 0 | - | 4.81 | 56,959 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,667 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,434 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,300 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,235 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,184 |
| Badly Drawn Flags #1 | 0 | - | 4.99 | 60,463 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,751 |
| Real vs. Fake Flags | 0 | - | 4.98 | 124,117 |
| National Football Team Logos | 0 | - | 4.85 | 180,274 |
| Asian Countries with NO Wolves | 0 | - | 4.60 | 18,819 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,265 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,753 |
| Old World... or New World? | 0 | - | 4.66 | 21,329 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,814 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,796 |
| Countries with Fjords | 0 | - | 4.94 | 100,856 |
| Years in History by Picture | 0 | - | 4.44 | 35,486 |
| Where Are These Doors? | 0 | - | 4.45 | 29,982 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,865 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,820 |
| Merged Company Logos #2 | 0 | - | 4.75 | 77,522 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,597 |
| Flags to Languages | 0 | - | 4.95 | 173,575 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,502 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,919 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 63,144 |
| Terrestrial Biomes - Map Quiz | 0 | - | 4.99 | 21,158 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,038 |
| Fruits by Picture | 0 | - | 4.19 | 807,114 |
| Old Movies by Picture | 0 | - | 4.51 | 25,085 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 47,005 |
| Name that Object #1 | 0 | - | 3.57 | 96,494 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 337,416 |
| Geography by Picture - B | 0 | - | 4.42 | 55,591 |
| Geography by Picture - H | 0 | - | 4.50 | 58,215 |
| Geography by Picture - N | 0 | - | 4.45 | 42,195 |
| Geography by Picture - R | 0 | - | 4.56 | 41,017 |
| Geography by Picture - T | 0 | - | 4.54 | 57,832 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 62,977 |
| Car Logos Quiz #1 | 0 | - | 4.45 | 538,637 |
| Random Logos Quiz | 0 | - | 4.31 | 208,345 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 114,987 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,412 |
| Pictures by Letter - J | 0 | - | 4.31 | 40,025 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,960 |
| Pictures by Letter - D | 0 | - | 4.13 | 37,580 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,796 |
| Largest Land Animals of Asia | 0 | - | 3.64 | 8,296 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,643 |
| Countries with the Most Lakes Over 100 Km² | 0 | - | 4.83 | 32,256 |
| Countries With No Rivers | 0 | - | 4.96 | 76,768 |
| Name a Valid Country on Each River | 0 | - | 4.95 | 62,065 |
| Rivers in History | 0 | - | 4.92 | 33,259 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,004 |
| North Sea Countries | 0 | - | 4.92 | 87,364 |
| Black Sea Countries | 0 | - | 4.87 | 60,591 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,358 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,454 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,212 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,347 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,942 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,678 |
| Elements by Picture | 0 | - | 4.27 | 69,916 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,309 |
| Islands by Picture | 0 | - | 4.29 | 106,894 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,256 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 103,749 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 41,186 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 206,147 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 48,006 |
| International Footballers by Picture | 0 | - | 4.50 | 55,571 |
| Name that Historical Figure #2 | 0 | - | 4.42 | 284,453 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 107,601 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.51 | 50,783 |
| Geography by Picture - A | 0 | - | 4.39 | 60,240 |
| Geography by Picture - D | 0 | - | 4.15 | 45,650 |
| Geography by Picture - F | 0 | - | 4.31 | 50,989 |
| Geography by Picture - G | 0 | - | 4.38 | 47,939 |
| Geography by Picture - J | 0 | - | 4.16 | 38,458 |
| Geography by Picture - K | 0 | - | 4.29 | 33,121 |
| Geography by Picture - C | 0 | - | 4.31 | 57,062 |
| Geography by Picture - L | 0 | - | 4.37 | 58,945 |
| Geography by Picture - M | 0 | - | 4.14 | 40,450 |
| Geography by Picture - P | 0 | - | 4.24 | 42,430 |
| Geography by Picture - S | 0 | - | 4.38 | 47,035 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 280,301 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,480 |
| Flag Maths | 0 | - | 4.64 | 57,759 |
| Satellite Images #1 | 0 | - | 4.47 | 129,349 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,283 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,897 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,904 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,970 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,955 |
| Soccer Team Logos | 0 | - | 4.26 | 374,289 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,421,556 |
| Ultimate Car Logos Quiz | 0 | - | 4.80 | 180,272 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 261,777 |
| Video Game Logos Quiz | 0 | - | 4.40 | 183,914 |
| Movie Logos | 0 | - | 4.33 | 238,328 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,770 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,259 |
| History by Picture - A | 0 | - | 4.26 | 45,803 |
| History by Picture - B | 0 | - | 4.40 | 48,958 |
| History by Picture - C | 0 | - | 4.36 | 54,487 |
| History by Picture - F | 0 | - | 4.35 | 37,892 |
| History by Picture - G | 0 | - | 4.40 | 42,152 |
| History by Picture - D | 0 | - | 4.29 | 44,321 |
| History by Picture - E | 0 | - | 4.25 | 43,941 |
| History by Picture - H | 0 | - | 4.37 | 36,806 |
| History by Picture - K | 0 | - | 4.35 | 33,363 |
| History by Picture - M | 0 | - | 4.17 | 36,150 |
| History by Picture - N | 0 | - | 4.40 | 41,268 |
| History by Picture - O | 0 | - | 4.39 | 36,321 |
| History by Picture - T | 0 | - | 4.20 | 33,320 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 57,269 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 150,401 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,513 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,442 |
| Animal Adjectives | 0 | - | 4.77 | 59,996 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 28,271 |
| Animals: No Vowels #1 | 0 | - | 4.56 | 64,055 |
| Bird in the Answers | 0 | - | 4.11 | 33,667 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,178 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,503 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,668 |
| African Great Lakes | 0 | - | 4.82 | 66,174 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,449 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,424 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,079 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,274 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 268,875 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,733 |
| Name that Object #2 | 0 | - | 3.64 | 15,442 |
| Authors by Picture | 0 | - | 4.48 | 25,530 |
| Name that Object #3 | 0 | - | 3.93 | 14,396 |
| Fruit and Vegetable Emojis | 0 | - | 4.44 | 89,012 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,389 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 55,744 |
