| Pick a Picture - Animal Relations | 0 | - | 4.94 | 54,913 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,050 |
| Animals by Close-up Image | 0 | - | 4.42 | 216,999 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,302 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,965 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,199 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,678 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,355 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,462 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,150 |
| Animals A-Z by Picture | 0 | - | 4.08 | 65,984 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,811 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,937 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,919 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,251 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,240 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,486 |
| Animals in World History | 0 | - | 4.74 | 44,252 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,497 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,101 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,561 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,611 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,748 |
| Empires by Maps | 0 | - | 4.98 | 118,743 |
| Merged Company Logos #1 | 0 | - | 4.91 | 105,551 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,660 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,636 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,532 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,795 |
| Fish by Picture #2 | 0 | - | 4.08 | 18,425 |
| Flowers by Picture | 0 | - | 4.46 | 105,047 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,195 |
| Countries with More Cows than People | 0 | - | 4.43 | 54,964 |
| North American Bird-Named Teams | 0 | - | 4.43 | 67,644 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,508 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,021 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 102,937 |
| Play-Doh People from History | 0 | - | 4.99 | 93,973 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,389 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 48,806 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 48,966 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,100 |
| All Country Flags of the World | 0 | - | 5.00 | 3,609,914 |
| Extinct Animals | 0 | - | 4.18 | 27,421 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,235 |
| Earliest Domestication of Animals | 0 | - | 4.33 | 28,217 |
| Animals in the News | 0 | - | 4.37 | 26,727 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,021 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,260 |
| Megadiverse Countries | 0 | - | 4.97 | 133,965 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,527,745 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,088,066 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 730,140 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,712 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,005 |
| Birds by Picture #3 | 0 | - | 4.24 | 32,902 |
| Asian Countries with NO Wolves | 0 | - | 4.60 | 18,632 |
| Old World... or New World? | 0 | - | 4.66 | 21,225 |
| Years in History by Picture | 0 | - | 4.44 | 35,156 |
| Make a Stained Glass Window | 0 | - | 5.00 | 67,895 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,301 |
| Flags with Crescents | 0 | - | 4.98 | 167,808 |
| Country Flag Trivia | 0 | - | 4.81 | 56,046 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,569 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,563 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,075 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,554 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,469 |
| Badly Drawn Flags #1 | 0 | - | 4.99 | 59,979 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,137 |
| Real vs. Fake Flags | 0 | - | 4.98 | 122,765 |
| National Football Team Logos | 0 | - | 4.84 | 178,891 |
| Merged Company Logos #2 | 0 | - | 4.75 | 76,848 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,204 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,701 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,693 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,410 |
| Countries with Fjords | 0 | - | 4.93 | 100,269 |
| Name that Object #1 | 0 | - | 3.56 | 96,326 |
| Flags to Languages | 0 | - | 4.95 | 172,648 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,744 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,167 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,484 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 62,380 |
| Fruits by Picture | 0 | - | 4.20 | 804,995 |
| Old Movies by Picture | 0 | - | 4.51 | 24,848 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,727 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,467 |
| Geography by Picture - B | 0 | - | 4.42 | 55,440 |
| Geography by Picture - H | 0 | - | 4.50 | 58,071 |
| Geography by Picture - N | 0 | - | 4.45 | 42,066 |
| Geography by Picture - R | 0 | - | 4.55 | 40,894 |
| Geography by Picture - T | 0 | - | 4.54 | 57,701 |
| Random Logos Quiz | 0 | - | 4.31 | 207,192 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 113,514 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,163 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,758 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,658 |
| Pictures by Letter - D | 0 | - | 4.16 | 37,345 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,552 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,373 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,760 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,518 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 532,895 |
| Largest Land Animals of Asia | 0 | - | 3.62 | 8,261 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,328 |
| Countries With No Rivers | 0 | - | 4.96 | 76,079 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,317 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,768 |
| North Sea Countries | 0 | - | 4.92 | 86,659 |
| Black Sea Countries | 0 | - | 4.87 | 60,365 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,055 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,147 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,977 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,199 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,656 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,442 |
| Elements by Picture | 0 | - | 4.28 | 69,607 |
| Name that Object #2 | 0 | - | 3.64 | 15,340 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,174 |
| Islands by Picture | 0 | - | 4.29 | 106,036 |
| Name that Object #3 | 0 | - | 3.93 | 14,315 |
| Classic Movies by Movie Posters | 0 | - | 4.44 | 24,078 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 102,867 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 40,886 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 205,591 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,801 |
| International Footballers by Picture | 0 | - | 4.50 | 54,858 |
| Name that Historical Figure #2 | 0 | - | 4.43 | 282,908 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 106,756 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,355 |
| Geography by Picture - A | 0 | - | 4.39 | 60,066 |
| Geography by Picture - D | 0 | - | 4.15 | 45,518 |
| Geography by Picture - F | 0 | - | 4.31 | 50,846 |
| Geography by Picture - G | 0 | - | 4.38 | 47,816 |
| Geography by Picture - J | 0 | - | 4.16 | 38,350 |
| Geography by Picture - K | 0 | - | 4.29 | 33,031 |
| Geography by Picture - C | 0 | - | 4.31 | 56,933 |
| Geography by Picture - L | 0 | - | 4.37 | 58,784 |
| Geography by Picture - M | 0 | - | 4.14 | 40,357 |
| Geography by Picture - P | 0 | - | 4.24 | 42,318 |
| Geography by Picture - S | 0 | - | 4.38 | 46,932 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,656 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,603 |
| Flag Maths | 0 | - | 4.78 | 57,689 |
| Satellite Images #1 | 0 | - | 4.46 | 129,060 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,027 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,682 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,683 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,829 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,439 |
| Soccer Team Logos | 0 | - | 4.26 | 371,278 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,404,644 |
| Ultimate Car Logos Quiz | 0 | - | 4.80 | 176,761 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 259,570 |
| Video Game Logos Quiz | 0 | - | 4.40 | 182,830 |
| Movie Logos | 0 | - | 4.33 | 236,218 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,890 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,308 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,398 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,305 |
| Pictures by Letter - G | 0 | - | 4.14 | 27,949 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,365 |
| Pictures by Letter - F | 0 | - | 4.17 | 28,838 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,322 |
| Pictures by Letter - Y | 0 | - | 4.22 | 26,132 |
| Pictures by Letter - R | 0 | - | 4.09 | 24,611 |
| Pictures by Letter - K | 0 | - | 4.18 | 24,950 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,206 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,346 |
| Pictures by Letter - P | 0 | - | 4.05 | 25,892 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,645 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,512 |
| History by Picture - A | 0 | - | 4.25 | 45,500 |
| History by Picture - B | 0 | - | 4.40 | 48,627 |
| History by Picture - C | 0 | - | 4.36 | 54,138 |
| History by Picture - F | 0 | - | 4.35 | 37,629 |
| History by Picture - G | 0 | - | 4.40 | 41,889 |
| History by Picture - D | 0 | - | 4.29 | 44,052 |
| History by Picture - E | 0 | - | 4.27 | 43,667 |
| History by Picture - H | 0 | - | 4.37 | 36,581 |
| History by Picture - K | 0 | - | 4.35 | 33,142 |
| History by Picture - M | 0 | - | 4.17 | 35,942 |
| History by Picture - N | 0 | - | 4.40 | 41,034 |
| History by Picture - O | 0 | - | 4.39 | 36,077 |
| History by Picture - T | 0 | - | 4.20 | 33,126 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 56,914 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 149,736 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,408 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,365 |
| Animal Adjectives | 0 | - | 4.77 | 59,855 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 28,120 |
| Animals: No Vowels #1 | 0 | - | 4.57 | 63,649 |
| Bird in the Answers | 0 | - | 4.10 | 33,313 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,114 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,349 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,287 |
| African Great Lakes | 0 | - | 4.82 | 65,310 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,823 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,976 |
