| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,267 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,346 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,580 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,525 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,151 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,646 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,219 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,787 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,831 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,432 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,319 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,045 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,079 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,153 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,458 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,284 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,870 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,642 |
| Animals in World History | 0 | - | 4.74 | 44,425 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,642 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,004 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,681 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,514 |
| Empires by Maps | 0 | - | 4.98 | 119,917 |
| Merged Company Logos #1 | 0 | - | 4.90 | 106,239 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,839 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,790 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,648 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,903 |
| Fish by Picture #2 | 0 | - | 4.06 | 18,520 |
| Flowers by Picture | 0 | - | 4.46 | 105,575 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,511 |
| Countries with More Cows than People | 0 | - | 4.45 | 61,194 |
| North American Bird-Named Teams | 0 | - | 4.44 | 67,801 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,562 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,188 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 103,927 |
| Play-Doh People from History | 0 | - | 4.99 | 94,568 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,850 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 49,192 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 49,374 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,423 |
| All Country Flags of the World | 0 | - | 5.00 | 3,647,092 |
| Extinct Animals | 0 | - | 4.21 | 27,480 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,340 |
| Earliest Domestication of Animals | 0 | - | 4.34 | 28,245 |
| Animals in the News | 0 | - | 4.37 | 26,777 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,240 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,298 |
| Megadiverse Countries | 0 | - | 4.96 | 134,745 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,534,290 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,091,443 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 732,466 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,922 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,268 |
| Birds by Picture #3 | 0 | - | 4.24 | 33,097 |
| Asian Countries with NO Wolves | 0 | - | 4.60 | 18,781 |
| Old World... or New World? | 0 | - | 4.66 | 21,301 |
| Years in History by Picture | 0 | - | 4.44 | 35,431 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,338 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,734 |
| Flags with Crescents | 0 | - | 4.98 | 169,007 |
| Country Flag Trivia | 0 | - | 4.81 | 56,751 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,385 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,216 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,002 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,084 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,988 |
| Badly Drawn Flags #1 | 0 | - | 4.99 | 60,354 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,597 |
| Real vs. Fake Flags | 0 | - | 4.98 | 123,773 |
| National Football Team Logos | 0 | - | 4.85 | 179,919 |
| Merged Company Logos #2 | 0 | - | 4.75 | 77,342 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,246 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,739 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,788 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,746 |
| Countries with Fjords | 0 | - | 4.94 | 100,757 |
| Name that Object #1 | 0 | - | 3.57 | 96,462 |
| Flags to Languages | 0 | - | 4.95 | 173,357 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,804 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,383 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,737 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 62,880 |
| Terrestrial Biomes - Map Quiz | 0 | - | 4.99 | 20,869 |
| Fruits by Picture | 0 | - | 4.19 | 806,604 |
| Old Movies by Picture | 0 | - | 4.51 | 25,046 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,942 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,561 |
| Geography by Picture - B | 0 | - | 4.42 | 55,555 |
| Geography by Picture - H | 0 | - | 4.50 | 58,176 |
| Geography by Picture - N | 0 | - | 4.45 | 42,166 |
| Geography by Picture - R | 0 | - | 4.56 | 40,979 |
| Geography by Picture - T | 0 | - | 4.54 | 57,799 |
| Random Logos Quiz | 0 | - | 4.31 | 208,090 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 114,660 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,349 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,970 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,891 |
| Pictures by Letter - D | 0 | - | 4.13 | 37,537 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,737 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,861 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 337,042 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,864 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 537,337 |
| Largest Land Animals of Asia | 0 | - | 3.64 | 8,292 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,592 |
| Countries With No Rivers | 0 | - | 4.96 | 76,691 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,951 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,972 |
| North Sea Countries | 0 | - | 4.92 | 87,294 |
| Black Sea Countries | 0 | - | 4.87 | 60,570 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,303 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,401 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,171 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,300 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,868 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,609 |
| Elements by Picture | 0 | - | 4.27 | 69,828 |
| Name that Object #2 | 0 | - | 3.64 | 15,428 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,278 |
| Islands by Picture | 0 | - | 4.29 | 106,700 |
| Name that Object #3 | 0 | - | 3.93 | 14,382 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,216 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 103,517 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 41,112 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 206,011 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,945 |
| International Footballers by Picture | 0 | - | 4.50 | 55,393 |
| Name that Historical Figure #2 | 0 | - | 4.42 | 284,119 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 107,428 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.51 | 50,697 |
| Geography by Picture - A | 0 | - | 4.39 | 60,193 |
| Geography by Picture - D | 0 | - | 4.15 | 45,607 |
| Geography by Picture - F | 0 | - | 4.31 | 50,945 |
| Geography by Picture - G | 0 | - | 4.38 | 47,908 |
| Geography by Picture - J | 0 | - | 4.16 | 38,428 |
| Geography by Picture - K | 0 | - | 4.29 | 33,092 |
| Geography by Picture - C | 0 | - | 4.31 | 57,031 |
| Geography by Picture - L | 0 | - | 4.37 | 58,898 |
| Geography by Picture - M | 0 | - | 4.14 | 40,419 |
| Geography by Picture - P | 0 | - | 4.24 | 42,396 |
| Geography by Picture - S | 0 | - | 4.38 | 47,006 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 279,909 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,267 |
| Flag Maths | 0 | - | 4.64 | 57,742 |
| Satellite Images #1 | 0 | - | 4.46 | 129,284 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,233 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,857 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,852 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,930 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,829 |
| Soccer Team Logos | 0 | - | 4.26 | 373,551 |
| Brand Logos Quiz #1 | 0 | - | 4.82 | 2,417,294 |
| Ultimate Car Logos Quiz | 0 | - | 4.80 | 179,350 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 261,263 |
| Video Game Logos Quiz | 0 | - | 4.40 | 183,634 |
| Movie Logos | 0 | - | 4.33 | 237,800 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,530 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,050 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,449 |
| Pictures by Letter - G | 0 | - | 4.14 | 28,103 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,515 |
| Pictures by Letter - F | 0 | - | 4.17 | 28,995 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,422 |
| Pictures by Letter - Y | 0 | - | 4.22 | 26,259 |
| Pictures by Letter - R | 0 | - | 4.05 | 24,732 |
| Pictures by Letter - K | 0 | - | 4.18 | 25,087 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,348 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,463 |
| Pictures by Letter - P | 0 | - | 4.05 | 26,009 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,753 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,641 |
| History by Picture - A | 0 | - | 4.26 | 45,729 |
| History by Picture - B | 0 | - | 4.40 | 48,879 |
| History by Picture - C | 0 | - | 4.36 | 54,405 |
| History by Picture - F | 0 | - | 4.35 | 37,836 |
| History by Picture - G | 0 | - | 4.40 | 42,091 |
| History by Picture - D | 0 | - | 4.29 | 44,265 |
| History by Picture - E | 0 | - | 4.27 | 43,872 |
| History by Picture - H | 0 | - | 4.37 | 36,752 |
| History by Picture - K | 0 | - | 4.35 | 33,319 |
| History by Picture - M | 0 | - | 4.17 | 36,113 |
| History by Picture - N | 0 | - | 4.40 | 41,216 |
| History by Picture - O | 0 | - | 4.39 | 36,273 |
| History by Picture - T | 0 | - | 4.20 | 33,278 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 57,165 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 150,226 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,491 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,427 |
| Animal Adjectives | 0 | - | 4.77 | 59,963 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 28,237 |
| Animals: No Vowels #1 | 0 | - | 4.56 | 63,954 |
| Bird in the Answers | 0 | - | 4.11 | 33,547 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,159 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,479 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,615 |
| African Great Lakes | 0 | - | 4.82 | 66,008 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,334 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,321 |
