| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,222 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,295 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,515 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,498 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,132 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,570 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,165 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,751 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,801 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,387 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,269 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,010 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,061 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,113 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,436 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,279 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,838 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,631 |
| Animals in World History | 0 | - | 4.74 | 44,406 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,593 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,955 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,669 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,424 |
| Empires by Maps | 0 | - | 4.98 | 119,790 |
| Merged Company Logos #1 | 0 | - | 4.90 | 106,150 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,818 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,777 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,636 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,893 |
| Fish by Picture #2 | 0 | - | 4.06 | 18,511 |
| Flowers by Picture | 0 | - | 4.46 | 105,543 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,464 |
| Countries with More Cows than People | 0 | - | 4.45 | 61,137 |
| North American Bird-Named Teams | 0 | - | 4.44 | 67,787 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,559 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,166 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 103,758 |
| Play-Doh People from History | 0 | - | 4.99 | 94,493 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,786 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 49,158 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 49,326 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,376 |
| All Country Flags of the World | 0 | - | 5.00 | 3,641,417 |
| Extinct Animals | 0 | - | 4.21 | 27,476 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,329 |
| Earliest Domestication of Animals | 0 | - | 4.34 | 28,241 |
| Animals in the News | 0 | - | 4.37 | 26,768 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,205 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,286 |
| Megadiverse Countries | 0 | - | 4.96 | 134,697 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,533,303 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,090,972 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 732,141 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,892 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,225 |
| Birds by Picture #3 | 0 | - | 4.24 | 33,061 |
| Asian Countries with NO Wolves | 0 | - | 4.60 | 18,761 |
| Old World... or New World? | 0 | - | 4.66 | 21,292 |
| Years in History by Picture | 0 | - | 4.44 | 35,402 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,289 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,671 |
| Flags with Crescents | 0 | - | 4.98 | 168,846 |
| Country Flag Trivia | 0 | - | 4.81 | 56,653 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,271 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,127 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,866 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,012 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,913 |
| Badly Drawn Flags #1 | 0 | - | 4.99 | 60,308 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,535 |
| Real vs. Fake Flags | 0 | - | 4.98 | 123,622 |
| National Football Team Logos | 0 | - | 4.85 | 179,803 |
| Merged Company Logos #2 | 0 | - | 4.75 | 77,277 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,240 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,735 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,777 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,727 |
| Countries with Fjords | 0 | - | 4.93 | 100,715 |
| Name that Object #1 | 0 | - | 3.57 | 96,451 |
| Flags to Languages | 0 | - | 4.95 | 173,253 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,801 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,324 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,714 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 62,835 |
| Terrestrial Biomes - Map Quiz | 0 | - | 4.99 | 20,589 |
| Fruits by Picture | 0 | - | 4.19 | 806,369 |
| Old Movies by Picture | 0 | - | 4.51 | 25,024 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,909 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,550 |
| Geography by Picture - B | 0 | - | 4.42 | 55,538 |
| Geography by Picture - H | 0 | - | 4.50 | 58,162 |
| Geography by Picture - N | 0 | - | 4.45 | 42,149 |
| Geography by Picture - R | 0 | - | 4.56 | 40,967 |
| Geography by Picture - T | 0 | - | 4.54 | 57,783 |
| Random Logos Quiz | 0 | - | 4.31 | 207,967 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 114,530 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,322 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,943 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,846 |
| Pictures by Letter - D | 0 | - | 4.13 | 37,507 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,715 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,789 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 336,870 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,813 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 536,778 |
| Largest Land Animals of Asia | 0 | - | 3.64 | 8,289 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,560 |
| Countries With No Rivers | 0 | - | 4.96 | 76,621 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,868 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,954 |
| North Sea Countries | 0 | - | 4.92 | 87,232 |
| Black Sea Countries | 0 | - | 4.87 | 60,552 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,273 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,380 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,148 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,287 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,836 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,581 |
| Elements by Picture | 0 | - | 4.27 | 69,792 |
| Name that Object #2 | 0 | - | 3.64 | 15,416 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,261 |
| Islands by Picture | 0 | - | 4.29 | 106,595 |
| Name that Object #3 | 0 | - | 3.93 | 14,373 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,199 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 103,415 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 41,080 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 205,953 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,924 |
| International Footballers by Picture | 0 | - | 4.50 | 55,297 |
| Name that Historical Figure #2 | 0 | - | 4.41 | 283,967 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 107,338 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,655 |
| Geography by Picture - A | 0 | - | 4.39 | 60,176 |
| Geography by Picture - D | 0 | - | 4.15 | 45,594 |
| Geography by Picture - F | 0 | - | 4.31 | 50,929 |
| Geography by Picture - G | 0 | - | 4.38 | 47,897 |
| Geography by Picture - J | 0 | - | 4.16 | 38,413 |
| Geography by Picture - K | 0 | - | 4.29 | 33,082 |
| Geography by Picture - C | 0 | - | 4.31 | 57,014 |
| Geography by Picture - L | 0 | - | 4.37 | 58,881 |
| Geography by Picture - M | 0 | - | 4.14 | 40,408 |
| Geography by Picture - P | 0 | - | 4.24 | 42,385 |
| Geography by Picture - S | 0 | - | 4.38 | 46,996 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 279,749 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,185 |
| Flag Maths | 0 | - | 4.64 | 57,734 |
| Satellite Images #1 | 0 | - | 4.46 | 129,251 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,205 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,829 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,830 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,912 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,768 |
| Soccer Team Logos | 0 | - | 4.26 | 373,245 |
| Brand Logos Quiz #1 | 0 | - | 4.82 | 2,415,462 |
| Ultimate Car Logos Quiz | 0 | - | 4.80 | 178,937 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 261,048 |
| Video Game Logos Quiz | 0 | - | 4.40 | 183,543 |
| Movie Logos | 0 | - | 4.33 | 237,592 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,436 |
| Brand Logos That Start with A | 0 | - | 4.52 | 69,964 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,419 |
| Pictures by Letter - G | 0 | - | 4.14 | 28,076 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,488 |
| Pictures by Letter - F | 0 | - | 4.17 | 28,959 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,406 |
| Pictures by Letter - Y | 0 | - | 4.22 | 26,235 |
| Pictures by Letter - R | 0 | - | 4.05 | 24,713 |
| Pictures by Letter - K | 0 | - | 4.18 | 25,062 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,327 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,448 |
| Pictures by Letter - P | 0 | - | 4.05 | 25,987 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,738 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,622 |
| History by Picture - A | 0 | - | 4.25 | 45,705 |
| History by Picture - B | 0 | - | 4.40 | 48,858 |
| History by Picture - C | 0 | - | 4.36 | 54,377 |
| History by Picture - F | 0 | - | 4.35 | 37,809 |
| History by Picture - G | 0 | - | 4.40 | 42,070 |
| History by Picture - D | 0 | - | 4.29 | 44,237 |
| History by Picture - E | 0 | - | 4.27 | 43,843 |
| History by Picture - H | 0 | - | 4.37 | 36,731 |
| History by Picture - K | 0 | - | 4.35 | 33,299 |
| History by Picture - M | 0 | - | 4.17 | 36,092 |
| History by Picture - N | 0 | - | 4.40 | 41,187 |
| History by Picture - O | 0 | - | 4.39 | 36,249 |
| History by Picture - T | 0 | - | 4.20 | 33,258 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 57,136 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 150,157 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,482 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,419 |
| Animal Adjectives | 0 | - | 4.77 | 59,946 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 28,220 |
| Animals: No Vowels #1 | 0 | - | 4.56 | 63,923 |
| Bird in the Answers | 0 | - | 4.11 | 33,504 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,150 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,461 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,578 |
| African Great Lakes | 0 | - | 4.82 | 65,918 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,277 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,274 |
