| Fish by Picture #1 | 0 | - | 4.41 | 108,110 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 54,874 |
| Name that Bug | 0 | - | 4.12 | 45,457 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,012 |
| Animals by Close-up Image | 0 | - | 4.42 | 216,918 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,267 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,938 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,145 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,634 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,329 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,438 |
| Animals A-Z by Picture | 0 | - | 4.08 | 65,936 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,787 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,914 |
| Fish by Picture #2 | 0 | - | 4.08 | 18,411 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,890 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,433 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,228 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,232 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,056 |
| Animals in World History | 0 | - | 4.74 | 44,231 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,517 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,684 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,480 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,598 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,635 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,613 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,523 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,781 |
| Flowers by Picture | 0 | - | 4.46 | 105,022 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,630 |
| Empires by Maps | 0 | - | 4.98 | 118,598 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,142 |
| Merged Company Logos #1 | 0 | - | 4.91 | 105,480 |
| Countries with More Cows than People | 0 | - | 4.43 | 54,654 |
| North American Bird-Named Teams | 0 | - | 4.43 | 67,637 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,503 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,004 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 102,851 |
| Play-Doh People from History | 0 | - | 4.99 | 93,903 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,340 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 48,764 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 48,919 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,057 |
| All Country Flags of the World | 0 | - | 5.00 | 3,605,037 |
| Name the Cat Flags | 0 | - | 5.00 | 40,058 |
| Extinct Animals | 0 | - | 4.18 | 27,409 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,217 |
| Earliest Domestication of Animals | 0 | - | 4.33 | 28,211 |
| Animals in the News | 0 | - | 4.37 | 26,720 |
| Countries with Wild Lions | 0 | - | 4.77 | 25,990 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,690 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,257 |
| Megadiverse Countries | 0 | - | 4.97 | 133,927 |
| Birds by Picture #2 | 0 | - | 4.33 | 35,972 |
| Birds by Picture #3 | 0 | - | 4.24 | 32,868 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,526,896 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,671 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,856 |
| Asian Countries with NO Wolves | 0 | - | 4.60 | 18,618 |
| Old World... or New World? | 0 | - | 4.66 | 21,209 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,212 |
| Make a Stained Glass Window | 0 | - | 5.00 | 67,847 |
| Flags with Crescents | 0 | - | 4.98 | 167,647 |
| Country Flag Trivia | 0 | - | 4.81 | 55,979 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,482 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,501 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,968 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,500 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,417 |
| Badly Drawn Flags #1 | 0 | - | 4.99 | 59,942 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,079 |
| Real vs. Fake Flags | 0 | - | 4.98 | 122,644 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,743 |
| National Football Team Logos | 0 | - | 4.84 | 178,761 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,202 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,694 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,385 |
| Countries with Fjords | 0 | - | 4.93 | 100,230 |
| Years in History by Picture | 0 | - | 4.44 | 35,126 |
| Where Are These Doors? | 0 | - | 4.45 | 29,607 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,454 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,265 |
| Flags to Languages | 0 | - | 4.95 | 172,556 |
| Merged Company Logos #2 | 0 | - | 4.75 | 76,797 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,158 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,437 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 62,326 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,310 |
| Fruits by Picture | 0 | - | 4.20 | 804,769 |
| Old Movies by Picture | 0 | - | 4.51 | 24,825 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,700 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 205,535 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,597 |
| Geography by Picture - B | 0 | - | 4.42 | 55,428 |
| Geography by Picture - H | 0 | - | 4.49 | 58,059 |
| Geography by Picture - N | 0 | - | 4.45 | 42,057 |
| Geography by Picture - R | 0 | - | 4.55 | 40,885 |
| Geography by Picture - T | 0 | - | 4.54 | 57,688 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,485 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 532,393 |
| Random Logos Quiz | 0 | - | 4.32 | 207,089 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 113,394 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,134 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,731 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,629 |
| Pictures by Letter - D | 0 | - | 4.16 | 37,315 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,531 |
| Largest Land Animals of Asia | 0 | - | 3.62 | 8,258 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,306 |
| Countries With No Rivers | 0 | - | 4.96 | 76,049 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,270 |
| Rivers in History | 0 | - | 4.91 | 32,933 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,747 |
| North Sea Countries | 0 | - | 4.92 | 86,618 |
| Black Sea Countries | 0 | - | 4.87 | 60,347 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,025 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,124 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,267 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,963 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,192 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,636 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,422 |
| Elements by Picture | 0 | - | 4.28 | 69,567 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,168 |
| Islands by Picture | 0 | - | 4.29 | 105,946 |
| Name that Object #1 | 0 | - | 3.56 | 96,313 |
| Classic Movies by Movie Posters | 0 | - | 4.44 | 24,058 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,565 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 102,742 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 40,860 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,782 |
| International Footballers by Picture | 0 | - | 4.50 | 54,799 |
| Name that Historical Figure #2 | 0 | - | 4.43 | 282,740 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 106,673 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,316 |
| Geography by Picture - A | 0 | - | 4.39 | 60,062 |
| Geography by Picture - D | 0 | - | 4.15 | 45,504 |
| Geography by Picture - F | 0 | - | 4.31 | 50,838 |
| Geography by Picture - G | 0 | - | 4.38 | 47,800 |
| Geography by Picture - J | 0 | - | 4.16 | 38,343 |
| Geography by Picture - K | 0 | - | 4.28 | 33,024 |
| Geography by Picture - C | 0 | - | 4.31 | 56,920 |
| Geography by Picture - L | 0 | - | 4.37 | 58,772 |
| Geography by Picture - M | 0 | - | 4.14 | 40,352 |
| Geography by Picture - P | 0 | - | 4.24 | 42,307 |
| Geography by Picture - S | 0 | - | 4.38 | 46,920 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,473 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,512 |
| Flag Maths | 0 | - | 4.78 | 57,681 |
| Satellite Images #1 | 0 | - | 4.46 | 129,034 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,005 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,664 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,660 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,816 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,395 |
| Soccer Team Logos | 0 | - | 4.26 | 371,002 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,403,160 |
| Ultimate Car Logos Quiz | 0 | - | 4.79 | 176,451 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 259,372 |
| Video Game Logos Quiz | 0 | - | 4.40 | 182,743 |
| Movie Logos | 0 | - | 4.33 | 236,031 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,805 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,227 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,312 |
| History by Picture - A | 0 | - | 4.25 | 45,474 |
| History by Picture - B | 0 | - | 4.40 | 48,602 |
| History by Picture - C | 0 | - | 4.36 | 54,099 |
| History by Picture - F | 0 | - | 4.35 | 37,599 |
| History by Picture - G | 0 | - | 4.40 | 41,863 |
| History by Picture - D | 0 | - | 4.29 | 44,021 |
| History by Picture - E | 0 | - | 4.27 | 43,638 |
| History by Picture - H | 0 | - | 4.37 | 36,553 |
| History by Picture - K | 0 | - | 4.35 | 33,115 |
| History by Picture - M | 0 | - | 4.17 | 35,924 |
| History by Picture - N | 0 | - | 4.40 | 41,010 |
| History by Picture - O | 0 | - | 4.39 | 36,053 |
| History by Picture - T | 0 | - | 4.20 | 33,105 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 56,870 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 149,672 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,394 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,357 |
| Animal Adjectives | 0 | - | 4.77 | 59,840 |
| Animals - Taxonomy to Common Name | 0 | - | 4.79 | 28,107 |
| Animals: No Vowels #1 | 0 | - | 4.57 | 63,605 |
| Bird in the Answers | 0 | - | 4.10 | 33,295 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,110 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,339 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,250 |
| African Great Lakes | 0 | - | 4.82 | 65,227 |
| Rivers and Lakes whose Names are Countries | 0 | - | 4.95 | 45,175 |
| Countries with the Most Lakes Over 100 Km² | 0 | - | 4.83 | 31,616 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,864 |
| Nile River Basin Countries on a Map | 0 | - | 4.95 | 50,241 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,775 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,088 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,738 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,946 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,500 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,691 |
