| Pick a Picture - Animal Relations | 0 | - | 4.94 | 54,757 |
| Animals by Skeleton Image | 0 | - | 4.80 | 45,912 |
| Animals by Close-up Image | 0 | - | 4.42 | 216,469 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,181 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,876 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,023 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,533 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,264 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,360 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,028 |
| Animals A-Z by Picture | 0 | - | 4.08 | 65,838 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,717 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,866 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,800 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,147 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,216 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,334 |
| Animals in World History | 0 | - | 4.74 | 44,186 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,458 |
| Countries with the Most Wolves | 0 | - | 4.92 | 106,951 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,408 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,576 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,306 |
| Empires by Maps | 0 | - | 4.98 | 118,149 |
| Merged Company Logos #1 | 0 | - | 4.91 | 105,270 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,588 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,579 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,489 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,756 |
| Fish by Picture #2 | 0 | - | 4.08 | 18,375 |
| Flowers by Picture | 0 | - | 4.46 | 104,978 |
| Birds by Picture #1 | 0 | - | 4.46 | 41,040 |
| Countries with More Cows than People | 0 | - | 4.43 | 54,584 |
| North American Bird-Named Teams | 0 | - | 4.43 | 67,597 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,501 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,944 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 102,553 |
| Play-Doh People from History | 0 | - | 4.99 | 93,692 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,211 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 48,652 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 48,797 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 60,946 |
| All Country Flags of the World | 0 | - | 5.00 | 3,594,084 |
| Extinct Animals | 0 | - | 4.18 | 27,394 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,185 |
| Earliest Domestication of Animals | 0 | - | 4.33 | 28,206 |
| Animals in the News | 0 | - | 4.37 | 26,707 |
| Countries with Wild Lions | 0 | - | 4.77 | 25,933 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,249 |
| Megadiverse Countries | 0 | - | 4.97 | 133,829 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,524,591 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,086,610 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 729,106 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,628 |
| Birds by Picture #2 | 0 | - | 4.33 | 35,898 |
| Birds by Picture #3 | 0 | - | 4.24 | 32,795 |
| Asian Countries with NO Wolves | 0 | - | 4.60 | 18,576 |
| Old World... or New World? | 0 | - | 4.66 | 21,185 |
| Years in History by Picture | 0 | - | 4.44 | 35,047 |
| Make a Stained Glass Window | 0 | - | 5.00 | 67,711 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,121 |
| Flags with Crescents | 0 | - | 4.98 | 167,268 |
| Country Flag Trivia | 0 | - | 4.81 | 55,777 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,234 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,335 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,722 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,337 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,267 |
| Badly Drawn Flags #1 | 0 | - | 4.99 | 59,814 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 51,929 |
| Real vs. Fake Flags | 0 | - | 4.98 | 122,324 |
| National Football Team Logos | 0 | - | 4.84 | 178,398 |
| Merged Company Logos #2 | 0 | - | 4.75 | 76,633 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,189 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,684 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,659 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,332 |
| Countries with Fjords | 0 | - | 4.93 | 100,144 |
| Name that Object #1 | 0 | - | 3.56 | 96,265 |
| Flags to Languages | 0 | - | 4.95 | 172,330 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,730 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.96 | 50,136 |
| Countries With The Most Bird Species | 0 | - | 4.92 | 32,188 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 62,219 |
| Fruits by Picture | 0 | - | 4.20 | 804,297 |
| Old Movies by Picture | 0 | - | 4.51 | 24,754 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,624 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,427 |
| Geography by Picture - B | 0 | - | 4.42 | 55,385 |
| Geography by Picture - H | 0 | - | 4.49 | 58,016 |
| Geography by Picture - N | 0 | - | 4.45 | 42,030 |
| Geography by Picture - R | 0 | - | 4.55 | 40,865 |
| Geography by Picture - T | 0 | - | 4.54 | 57,647 |
| Random Logos Quiz | 0 | - | 4.32 | 206,843 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 112,959 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,085 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,682 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,564 |
| Pictures by Letter - D | 0 | - | 4.16 | 37,266 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,489 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,157 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,221 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,351 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 531,045 |
| Largest Land Animals of Asia | 0 | - | 3.62 | 8,251 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,255 |
| Countries With No Rivers | 0 | - | 4.96 | 75,978 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,167 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,720 |
| North Sea Countries | 0 | - | 4.92 | 86,565 |
| Black Sea Countries | 0 | - | 4.87 | 60,298 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 64,980 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,073 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,926 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,168 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,578 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,369 |
| Elements by Picture | 0 | - | 4.27 | 69,487 |
| Name that Object #2 | 0 | - | 3.64 | 15,300 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,138 |
| Islands by Picture | 0 | - | 4.29 | 105,742 |
| Name that Object #3 | 0 | - | 3.93 | 14,286 |
| Classic Movies by Movie Posters | 0 | - | 4.44 | 24,001 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 102,317 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 40,782 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 205,425 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,730 |
| International Footballers by Picture | 0 | - | 4.50 | 54,573 |
| Name that Historical Figure #2 | 0 | - | 4.43 | 282,306 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 106,478 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,229 |
| Geography by Picture - A | 0 | - | 4.39 | 60,018 |
| Geography by Picture - D | 0 | - | 4.15 | 45,466 |
| Geography by Picture - F | 0 | - | 4.31 | 50,807 |
| Geography by Picture - G | 0 | - | 4.38 | 47,774 |
| Geography by Picture - J | 0 | - | 4.16 | 38,313 |
| Geography by Picture - K | 0 | - | 4.28 | 32,996 |
| Geography by Picture - C | 0 | - | 4.31 | 56,891 |
| Geography by Picture - L | 0 | - | 4.37 | 58,728 |
| Geography by Picture - M | 0 | - | 4.14 | 40,327 |
| Geography by Picture - P | 0 | - | 4.24 | 42,286 |
| Geography by Picture - S | 0 | - | 4.38 | 46,893 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,060 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,310 |
| Flag Maths | 0 | - | 4.78 | 57,663 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 128,956 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,953 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,615 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,613 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,774 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,271 |
| Soccer Team Logos | 0 | - | 4.26 | 370,204 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,398,774 |
| Ultimate Car Logos Quiz | 0 | - | 4.79 | 175,643 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 258,855 |
| Video Game Logos Quiz | 0 | - | 4.40 | 182,449 |
| Movie Logos | 0 | - | 4.33 | 235,478 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,631 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,076 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,120 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,253 |
| Pictures by Letter - G | 0 | - | 4.14 | 27,880 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,295 |
| Pictures by Letter - F | 0 | - | 4.17 | 28,765 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,276 |
| Pictures by Letter - Y | 0 | - | 4.22 | 26,085 |
| Pictures by Letter - R | 0 | - | 4.05 | 24,556 |
| Pictures by Letter - K | 0 | - | 4.18 | 24,892 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,146 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,298 |
| Pictures by Letter - P | 0 | - | 4.05 | 25,833 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,585 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,441 |
| History by Picture - A | 0 | - | 4.25 | 45,410 |
| History by Picture - B | 0 | - | 4.40 | 48,522 |
| History by Picture - C | 0 | - | 4.36 | 54,025 |
| History by Picture - F | 0 | - | 4.35 | 37,537 |
| History by Picture - G | 0 | - | 4.40 | 41,791 |
| History by Picture - D | 0 | - | 4.32 | 43,956 |
| History by Picture - E | 0 | - | 4.27 | 43,578 |
| History by Picture - H | 0 | - | 4.37 | 36,485 |
| History by Picture - K | 0 | - | 4.35 | 33,066 |
| History by Picture - M | 0 | - | 4.17 | 35,873 |
| History by Picture - N | 0 | - | 4.40 | 40,950 |
| History by Picture - O | 0 | - | 4.39 | 35,988 |
| History by Picture - T | 0 | - | 4.20 | 33,047 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 56,780 |
| Baby, Male and Female Animals | 0 | - | 4.42 | 149,530 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,371 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,341 |
| Animal Adjectives | 0 | - | 4.77 | 59,803 |
| Animals - Taxonomy to Common Name | 0 | - | 4.79 | 28,073 |
| Animals: No Vowels #1 | 0 | - | 4.57 | 63,516 |
| Bird in the Answers | 0 | - | 4.10 | 33,199 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,089 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,321 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,178 |
| African Great Lakes | 0 | - | 4.82 | 65,026 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,621 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,833 |
