| Pick a Picture - Animal Relations | 0 | - | 4.94 | 54,993 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,110 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,150 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,355 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,002 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,303 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,884 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,536 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,605 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,218 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,058 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,862 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,970 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,976 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,302 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,246 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,634 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,563 |
| Animals in World History | 0 | - | 4.74 | 44,299 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,306 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,749 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,625 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,901 |
| Empires by Maps | 0 | - | 4.98 | 118,950 |
| Merged Company Logos #1 | 0 | - | 4.91 | 105,664 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,723 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,685 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,569 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,829 |
| Fish by Picture #2 | 0 | - | 4.08 | 18,452 |
| Flowers by Picture | 0 | - | 4.46 | 105,090 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,267 |
| Countries with More Cows than People | 0 | - | 4.45 | 60,538 |
| North American Bird-Named Teams | 0 | - | 4.43 | 67,687 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,518 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,062 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 103,126 |
| Play-Doh People from History | 0 | - | 4.99 | 94,087 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,481 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 48,885 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 49,066 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,165 |
| All Country Flags of the World | 0 | - | 5.00 | 3,617,461 |
| Extinct Animals | 0 | - | 4.18 | 27,435 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,256 |
| Earliest Domestication of Animals | 0 | - | 4.33 | 28,222 |
| Animals in the News | 0 | - | 4.37 | 26,740 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,066 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,264 |
| Megadiverse Countries | 0 | - | 4.96 | 134,443 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,529,143 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,088,735 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 730,606 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,773 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,067 |
| Birds by Picture #3 | 0 | - | 4.24 | 32,943 |
| Asian Countries with NO Wolves | 0 | - | 4.60 | 18,666 |
| Old World... or New World? | 0 | - | 4.66 | 21,240 |
| Years in History by Picture | 0 | - | 4.44 | 35,220 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,003 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,392 |
| Flags with Crescents | 0 | - | 4.98 | 168,006 |
| Country Flag Trivia | 0 | - | 4.81 | 56,168 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,707 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,682 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,229 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,653 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,564 |
| Badly Drawn Flags #1 | 0 | - | 4.99 | 60,044 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,232 |
| Real vs. Fake Flags | 0 | - | 4.98 | 122,941 |
| National Football Team Logos | 0 | - | 4.85 | 179,129 |
| Merged Company Logos #2 | 0 | - | 4.75 | 76,930 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,212 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,706 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,724 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,448 |
| Countries with Fjords | 0 | - | 4.93 | 100,349 |
| Name that Object #1 | 0 | - | 3.56 | 96,344 |
| Flags to Languages | 0 | - | 4.95 | 172,788 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,765 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,175 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,581 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 62,554 |
| Fruits by Picture | 0 | - | 4.20 | 805,340 |
| Old Movies by Picture | 0 | - | 4.51 | 24,897 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,765 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,487 |
| Geography by Picture - B | 0 | - | 4.42 | 55,464 |
| Geography by Picture - H | 0 | - | 4.50 | 58,088 |
| Geography by Picture - N | 0 | - | 4.45 | 42,082 |
| Geography by Picture - R | 0 | - | 4.56 | 40,913 |
| Geography by Picture - T | 0 | - | 4.54 | 57,717 |
| Random Logos Quiz | 0 | - | 4.31 | 207,371 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 113,731 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,204 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,801 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,691 |
| Pictures by Letter - D | 0 | - | 4.16 | 37,381 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,590 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,468 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 336,086 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,595 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 534,092 |
| Largest Land Animals of Asia | 0 | - | 3.62 | 8,265 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,378 |
| Countries With No Rivers | 0 | - | 4.96 | 76,130 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,382 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,786 |
| North Sea Countries | 0 | - | 4.92 | 86,697 |
| Black Sea Countries | 0 | - | 4.87 | 60,381 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,087 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,167 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,997 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,213 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,701 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,475 |
| Elements by Picture | 0 | - | 4.28 | 69,656 |
| Name that Object #2 | 0 | - | 3.64 | 15,351 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,204 |
| Islands by Picture | 0 | - | 4.29 | 106,171 |
| Name that Object #3 | 0 | - | 3.93 | 14,324 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,120 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 103,006 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 40,932 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 205,667 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,831 |
| International Footballers by Picture | 0 | - | 4.50 | 54,954 |
| Name that Historical Figure #2 | 0 | - | 4.43 | 283,240 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 106,961 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,465 |
| Geography by Picture - A | 0 | - | 4.39 | 60,093 |
| Geography by Picture - D | 0 | - | 4.15 | 45,535 |
| Geography by Picture - F | 0 | - | 4.31 | 50,864 |
| Geography by Picture - G | 0 | - | 4.38 | 47,837 |
| Geography by Picture - J | 0 | - | 4.16 | 38,360 |
| Geography by Picture - K | 0 | - | 4.29 | 33,039 |
| Geography by Picture - C | 0 | - | 4.31 | 56,954 |
| Geography by Picture - L | 0 | - | 4.37 | 58,811 |
| Geography by Picture - M | 0 | - | 4.14 | 40,368 |
| Geography by Picture - P | 0 | - | 4.24 | 42,329 |
| Geography by Picture - S | 0 | - | 4.38 | 46,942 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,917 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,757 |
| Flag Maths | 0 | - | 4.74 | 57,694 |
| Satellite Images #1 | 0 | - | 4.46 | 129,109 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,070 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,725 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,720 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,858 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,530 |
| Soccer Team Logos | 0 | - | 4.26 | 371,784 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,407,391 |
| Ultimate Car Logos Quiz | 0 | - | 4.80 | 177,266 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 260,004 |
| Video Game Logos Quiz | 0 | - | 4.40 | 182,993 |
| Movie Logos | 0 | - | 4.33 | 236,526 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,054 |
| Brand Logos That Start With B | 0 | - | 4.38 | 59,432 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,554 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,331 |
| Pictures by Letter - G | 0 | - | 4.14 | 27,975 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,391 |
| Pictures by Letter - F | 0 | - | 4.17 | 28,868 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,340 |
| Pictures by Letter - Y | 0 | - | 4.22 | 26,152 |
| Pictures by Letter - R | 0 | - | 4.09 | 24,637 |
| Pictures by Letter - K | 0 | - | 4.18 | 24,973 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,233 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,368 |
| Pictures by Letter - P | 0 | - | 4.05 | 25,908 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,668 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,533 |
| History by Picture - A | 0 | - | 4.25 | 45,541 |
| History by Picture - B | 0 | - | 4.40 | 48,677 |
| History by Picture - C | 0 | - | 4.36 | 54,183 |
| History by Picture - F | 0 | - | 4.35 | 37,668 |
| History by Picture - G | 0 | - | 4.40 | 41,920 |
| History by Picture - D | 0 | - | 4.29 | 44,090 |
| History by Picture - E | 0 | - | 4.27 | 43,705 |
| History by Picture - H | 0 | - | 4.37 | 36,613 |
| History by Picture - K | 0 | - | 4.35 | 33,171 |
| History by Picture - M | 0 | - | 4.17 | 35,973 |
| History by Picture - N | 0 | - | 4.40 | 41,058 |
| History by Picture - O | 0 | - | 4.39 | 36,113 |
| History by Picture - T | 0 | - | 4.20 | 33,155 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 56,964 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 149,836 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,429 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,379 |
| Animal Adjectives | 0 | - | 4.77 | 59,874 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 28,152 |
| Animals: No Vowels #1 | 0 | - | 4.55 | 63,719 |
| Bird in the Answers | 0 | - | 4.10 | 33,353 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,123 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,364 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,343 |
| African Great Lakes | 0 | - | 4.82 | 65,481 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,901 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,040 |
