| Pick a Picture - Animal Relations | 0 | - | 4.94 | 54,789 |
| Animals by Skeleton Image | 0 | - | 4.80 | 45,937 |
| Animals by Close-up Image | 0 | - | 4.42 | 216,518 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,198 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,889 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,065 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,562 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,279 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,386 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,042 |
| Animals A-Z by Picture | 0 | - | 4.08 | 65,852 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,739 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,878 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,826 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,176 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,222 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,355 |
| Animals in World History | 0 | - | 4.74 | 44,199 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,466 |
| Countries with the Most Wolves | 0 | - | 4.92 | 106,981 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,439 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,581 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,392 |
| Empires by Maps | 0 | - | 4.98 | 118,268 |
| Merged Company Logos #1 | 0 | - | 4.91 | 105,340 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,598 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,586 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,497 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,764 |
| Fish by Picture #2 | 0 | - | 4.08 | 18,384 |
| Flowers by Picture | 0 | - | 4.46 | 104,993 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,069 |
| Countries with More Cows than People | 0 | - | 4.43 | 54,602 |
| North American Bird-Named Teams | 0 | - | 4.43 | 67,604 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,503 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,968 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 102,666 |
| Play-Doh People from History | 0 | - | 4.99 | 93,763 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,251 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 48,691 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 48,844 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 60,978 |
| All Country Flags of the World | 0 | - | 5.00 | 3,597,235 |
| Extinct Animals | 0 | - | 4.18 | 27,396 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,195 |
| Earliest Domestication of Animals | 0 | - | 4.33 | 28,208 |
| Animals in the News | 0 | - | 4.37 | 26,710 |
| Countries with Wild Lions | 0 | - | 4.77 | 25,953 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,251 |
| Megadiverse Countries | 0 | - | 4.97 | 133,851 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,525,307 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,086,931 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,322 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,648 |
| Birds by Picture #2 | 0 | - | 4.33 | 35,916 |
| Birds by Picture #3 | 0 | - | 4.24 | 32,812 |
| Asian Countries with NO Wolves | 0 | - | 4.60 | 18,589 |
| Old World... or New World? | 0 | - | 4.66 | 21,194 |
| Years in History by Picture | 0 | - | 4.44 | 35,066 |
| Make a Stained Glass Window | 0 | - | 5.00 | 67,748 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,160 |
| Flags with Crescents | 0 | - | 4.98 | 167,387 |
| Country Flag Trivia | 0 | - | 4.81 | 55,835 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,301 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,390 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,804 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,382 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,312 |
| Badly Drawn Flags #1 | 0 | - | 4.99 | 59,850 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 51,964 |
| Real vs. Fake Flags | 0 | - | 4.98 | 122,421 |
| National Football Team Logos | 0 | - | 4.84 | 178,507 |
| Merged Company Logos #2 | 0 | - | 4.75 | 76,686 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,191 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,684 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,665 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,348 |
| Countries with Fjords | 0 | - | 4.93 | 100,172 |
| Name that Object #1 | 0 | - | 3.56 | 96,284 |
| Flags to Languages | 0 | - | 4.95 | 172,398 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,735 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.96 | 50,143 |
| Countries With The Most Bird Species | 0 | - | 4.92 | 32,286 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 62,248 |
| Fruits by Picture | 0 | - | 4.20 | 804,431 |
| Old Movies by Picture | 0 | - | 4.51 | 24,775 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,641 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,433 |
| Geography by Picture - B | 0 | - | 4.42 | 55,392 |
| Geography by Picture - H | 0 | - | 4.49 | 58,026 |
| Geography by Picture - N | 0 | - | 4.45 | 42,038 |
| Geography by Picture - R | 0 | - | 4.55 | 40,869 |
| Geography by Picture - T | 0 | - | 4.54 | 57,660 |
| Random Logos Quiz | 0 | - | 4.32 | 206,917 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 113,063 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,105 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,697 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,593 |
| Pictures by Letter - D | 0 | - | 4.16 | 37,285 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,504 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,200 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,330 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,387 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 531,467 |
| Largest Land Animals of Asia | 0 | - | 3.62 | 8,252 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,269 |
| Countries With No Rivers | 0 | - | 4.96 | 76,000 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,196 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,731 |
| North Sea Countries | 0 | - | 4.92 | 86,577 |
| Black Sea Countries | 0 | - | 4.87 | 60,314 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 64,997 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,088 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,935 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,172 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,596 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,384 |
| Elements by Picture | 0 | - | 4.28 | 69,507 |
| Name that Object #2 | 0 | - | 3.64 | 15,314 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,145 |
| Islands by Picture | 0 | - | 4.29 | 105,807 |
| Name that Object #3 | 0 | - | 3.93 | 14,296 |
| Classic Movies by Movie Posters | 0 | - | 4.44 | 24,016 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 102,409 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 40,802 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 205,455 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,745 |
| International Footballers by Picture | 0 | - | 4.50 | 54,637 |
| Name that Historical Figure #2 | 0 | - | 4.43 | 282,432 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 106,539 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,258 |
| Geography by Picture - A | 0 | - | 4.39 | 60,033 |
| Geography by Picture - D | 0 | - | 4.15 | 45,475 |
| Geography by Picture - F | 0 | - | 4.31 | 50,815 |
| Geography by Picture - G | 0 | - | 4.38 | 47,777 |
| Geography by Picture - J | 0 | - | 4.16 | 38,328 |
| Geography by Picture - K | 0 | - | 4.28 | 33,005 |
| Geography by Picture - C | 0 | - | 4.31 | 56,895 |
| Geography by Picture - L | 0 | - | 4.37 | 58,735 |
| Geography by Picture - M | 0 | - | 4.14 | 40,338 |
| Geography by Picture - P | 0 | - | 4.24 | 42,292 |
| Geography by Picture - S | 0 | - | 4.38 | 46,900 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,187 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,366 |
| Flag Maths | 0 | - | 4.78 | 57,667 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 128,976 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,962 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,627 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,630 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,789 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,309 |
| Soccer Team Logos | 0 | - | 4.26 | 370,441 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,400,110 |
| Ultimate Car Logos Quiz | 0 | - | 4.79 | 175,873 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 259,018 |
| Video Game Logos Quiz | 0 | - | 4.40 | 182,520 |
| Movie Logos | 0 | - | 4.33 | 235,624 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,684 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,129 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,168 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,261 |
| Pictures by Letter - G | 0 | - | 4.14 | 27,894 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,311 |
| Pictures by Letter - F | 0 | - | 4.17 | 28,787 |
| Pictures by Letter - Z | 0 | - | 4.05 | 23,285 |
| Pictures by Letter - Y | 0 | - | 4.22 | 26,095 |
| Pictures by Letter - R | 0 | - | 4.09 | 24,569 |
| Pictures by Letter - K | 0 | - | 4.18 | 24,907 |
| Pictures by Letter - I | 0 | - | 4.16 | 30,165 |
| Pictures by Letter - N | 0 | - | 4.11 | 24,309 |
| Pictures by Letter - P | 0 | - | 4.05 | 25,848 |
| Pictures by Letter - U | 0 | - | 4.10 | 20,595 |
| Pictures by Letter - T | 0 | - | 4.34 | 27,458 |
| History by Picture - A | 0 | - | 4.25 | 45,437 |
| History by Picture - B | 0 | - | 4.40 | 48,544 |
| History by Picture - C | 0 | - | 4.36 | 54,051 |
| History by Picture - F | 0 | - | 4.35 | 37,560 |
| History by Picture - G | 0 | - | 4.40 | 41,819 |
| History by Picture - D | 0 | - | 4.29 | 43,983 |
| History by Picture - E | 0 | - | 4.27 | 43,601 |
| History by Picture - H | 0 | - | 4.37 | 36,514 |
| History by Picture - K | 0 | - | 4.35 | 33,082 |
| History by Picture - M | 0 | - | 4.17 | 35,890 |
| History by Picture - N | 0 | - | 4.40 | 40,969 |
| History by Picture - O | 0 | - | 4.39 | 36,007 |
| History by Picture - T | 0 | - | 4.20 | 33,068 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 56,805 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 149,567 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,374 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,346 |
| Animal Adjectives | 0 | - | 4.77 | 59,816 |
| Animals - Taxonomy to Common Name | 0 | - | 4.79 | 28,083 |
| Animals: No Vowels #1 | 0 | - | 4.57 | 63,534 |
| Bird in the Answers | 0 | - | 4.10 | 33,245 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,093 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,326 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,198 |
| African Great Lakes | 0 | - | 4.82 | 65,073 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,656 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,855 |
