| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,250 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,333 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,552 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,518 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,143 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,612 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,192 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,775 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,820 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,422 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,306 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,031 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,071 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,142 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,451 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,284 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,861 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,635 |
| Animals in World History | 0 | - | 4.74 | 44,418 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,622 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,989 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,677 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,475 |
| Empires by Maps | 0 | - | 4.98 | 119,867 |
| Merged Company Logos #1 | 0 | - | 4.90 | 106,204 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,830 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,785 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,646 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,897 |
| Fish by Picture #2 | 0 | - | 4.06 | 18,518 |
| Flowers by Picture | 0 | - | 4.46 | 105,563 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,498 |
| Countries with More Cows than People | 0 | - | 4.45 | 61,165 |
| North American Bird-Named Teams | 0 | - | 4.44 | 67,795 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,561 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,177 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 103,865 |
| Play-Doh People from History | 0 | - | 4.99 | 94,552 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,824 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 49,177 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 49,355 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,409 |
| All Country Flags of the World | 0 | - | 5.00 | 3,644,873 |
| Extinct Animals | 0 | - | 4.21 | 27,479 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,334 |
| Earliest Domestication of Animals | 0 | - | 4.34 | 28,244 |
| Animals in the News | 0 | - | 4.37 | 26,772 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,228 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,295 |
| Megadiverse Countries | 0 | - | 4.96 | 134,726 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,533,917 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,091,255 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 732,329 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,906 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,257 |
| Birds by Picture #3 | 0 | - | 4.24 | 33,086 |
| Asian Countries with NO Wolves | 0 | - | 4.60 | 18,776 |
| Old World... or New World? | 0 | - | 4.66 | 21,299 |
| Years in History by Picture | 0 | - | 4.44 | 35,418 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,319 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,711 |
| Flags with Crescents | 0 | - | 4.98 | 168,948 |
| Country Flag Trivia | 0 | - | 4.81 | 56,707 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,334 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,185 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 86,953 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,058 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,965 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,564 |
| Real vs. Fake Flags | 0 | - | 4.98 | 123,709 |
| National Football Team Logos | 0 | - | 4.85 | 179,887 |
| Merged Company Logos #2 | 0 | - | 4.75 | 77,320 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,244 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,738 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,781 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,740 |
| Countries with Fjords | 0 | - | 4.94 | 100,742 |
| Name that Object #1 | 0 | - | 3.57 | 96,457 |
| Flags to Languages | 0 | - | 4.95 | 173,320 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,802 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,367 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,729 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 62,860 |
| Terrestrial Biomes - Map Quiz | 0 | - | 4.99 | 20,776 |
| Fruits by Picture | 0 | - | 4.19 | 806,508 |
| Old Movies by Picture | 0 | - | 4.51 | 25,041 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,922 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,559 |
| Geography by Picture - B | 0 | - | 4.42 | 55,550 |
| Geography by Picture - H | 0 | - | 4.50 | 58,171 |
| Geography by Picture - N | 0 | - | 4.45 | 42,160 |
| Geography by Picture - R | 0 | - | 4.56 | 40,977 |
| Geography by Picture - T | 0 | - | 4.54 | 57,789 |
| Random Logos Quiz | 0 | - | 4.31 | 208,060 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 114,636 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,340 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,963 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,881 |
| Pictures by Letter - D | 0 | - | 4.13 | 37,526 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,733 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,831 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 336,962 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,844 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 537,135 |
| Largest Land Animals of Asia | 0 | - | 3.64 | 8,290 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,578 |
| Countries With No Rivers | 0 | - | 4.96 | 76,671 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,916 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,969 |
| North Sea Countries | 0 | - | 4.92 | 87,284 |
| Black Sea Countries | 0 | - | 4.87 | 60,565 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,290 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,396 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 412,306 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,163 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,299 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,856 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,598 |
| Elements by Picture | 0 | - | 4.27 | 69,817 |
| Name that Object #2 | 0 | - | 3.64 | 15,422 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,268 |
| Islands by Picture | 0 | - | 4.29 | 106,657 |
| Name that Object #3 | 0 | - | 3.93 | 14,379 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,208 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 103,471 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 41,099 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 205,989 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,938 |
| International Footballers by Picture | 0 | - | 4.50 | 55,350 |
| Name that Historical Figure #2 | 0 | - | 4.42 | 284,051 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 107,387 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.51 | 50,679 |
| Geography by Picture - A | 0 | - | 4.39 | 60,186 |
| Geography by Picture - D | 0 | - | 4.15 | 45,603 |
| Geography by Picture - F | 0 | - | 4.31 | 50,937 |
| Geography by Picture - G | 0 | - | 4.38 | 47,905 |
| Geography by Picture - J | 0 | - | 4.16 | 38,424 |
| Geography by Picture - K | 0 | - | 4.29 | 33,089 |
| Geography by Picture - C | 0 | - | 4.31 | 57,026 |
| Geography by Picture - L | 0 | - | 4.37 | 58,895 |
| Geography by Picture - M | 0 | - | 4.14 | 40,414 |
| Geography by Picture - P | 0 | - | 4.24 | 42,391 |
| Geography by Picture - S | 0 | - | 4.38 | 47,002 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 279,851 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,236 |
| Flag Maths | 0 | - | 4.64 | 57,739 |
| Satellite Images #1 | 0 | - | 4.46 | 129,269 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,223 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,842 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,839 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,921 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,802 |
| Soccer Team Logos | 0 | - | 4.26 | 373,459 |
| Brand Logos Quiz #1 | 0 | - | 4.82 | 2,416,643 |
| Ultimate Car Logos Quiz | 0 | - | 4.80 | 179,191 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 261,184 |
| Video Game Logos Quiz | 0 | - | 4.40 | 183,611 |
| Movie Logos | 0 | - | 4.33 | 237,730 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,491 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,022 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,440 |
| Pictures by Letter - G | 0 | - | 4.14 | 28,094 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,510 |
| Pictures by Letter - F | 0 | - | 4.17 | 28,985 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,417 |
| Pictures by Letter - Y | 0 | - | 4.22 | 26,252 |
| Pictures by Letter - R | 0 | - | 4.05 | 24,726 |
| Pictures by Letter - K | 0 | - | 4.18 | 25,080 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,343 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,459 |
| Pictures by Letter - P | 0 | - | 4.05 | 26,004 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,750 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,635 |
| History by Picture - A | 0 | - | 4.26 | 45,720 |
| History by Picture - B | 0 | - | 4.40 | 48,868 |
| History by Picture - C | 0 | - | 4.36 | 54,393 |
| History by Picture - F | 0 | - | 4.35 | 37,820 |
| History by Picture - G | 0 | - | 4.40 | 42,081 |
| History by Picture - D | 0 | - | 4.29 | 44,251 |
| History by Picture - E | 0 | - | 4.27 | 43,859 |
| History by Picture - H | 0 | - | 4.37 | 36,737 |
| History by Picture - K | 0 | - | 4.35 | 33,310 |
| History by Picture - M | 0 | - | 4.17 | 36,101 |
| History by Picture - N | 0 | - | 4.40 | 41,200 |
| History by Picture - O | 0 | - | 4.39 | 36,259 |
| History by Picture - T | 0 | - | 4.20 | 33,269 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 57,152 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 150,202 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,487 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,423 |
| Animal Adjectives | 0 | - | 4.77 | 59,958 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 28,226 |
| Animals: No Vowels #1 | 0 | - | 4.56 | 63,948 |
| Bird in the Answers | 0 | - | 4.11 | 33,528 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,154 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,471 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,607 |
| African Great Lakes | 0 | - | 4.82 | 65,978 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,315 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,302 |
