| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,014 |
| Name that Bug | 0 | - | 4.12 | 45,489 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,123 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,190 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,376 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,020 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,335 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,927 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,566 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,628 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,238 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,090 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,878 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,986 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,000 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,318 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,660 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,249 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,569 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,350 |
| Animals in World History | 0 | - | 4.74 | 44,310 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,783 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,628 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,735 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,696 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,575 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,836 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,954 |
| Empires by Maps | 0 | - | 4.98 | 119,042 |
| Fish by Picture #2 | 0 | - | 4.08 | 18,462 |
| Merged Company Logos #1 | 0 | - | 4.91 | 105,709 |
| Flowers by Picture | 0 | - | 4.46 | 105,102 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,301 |
| Countries with More Cows than People | 0 | - | 4.45 | 60,723 |
| North American Bird-Named Teams | 0 | - | 4.43 | 67,703 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,524 |
| All Country Flags of the World | 0 | - | 5.00 | 3,620,379 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,272 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,084 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,269 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,076 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 103,185 |
| Play-Doh People from History | 0 | - | 4.99 | 94,146 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,511 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 48,913 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 49,105 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,189 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,529,657 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,088,966 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 730,796 |
| Name the Cat Flags | 0 | - | 5.00 | 40,132 |
| Extinct Animals | 0 | - | 4.19 | 27,438 |
| Earliest Domestication of Animals | 0 | - | 4.34 | 28,224 |
| Animals in the News | 0 | - | 4.37 | 26,743 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,783 |
| Megadiverse Countries | 0 | - | 4.96 | 134,478 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,032 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,094 |
| Birds by Picture #3 | 0 | - | 4.24 | 32,961 |
| Flags with Crescents | 0 | - | 4.98 | 168,088 |
| Country Flag Trivia | 0 | - | 4.81 | 56,209 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,764 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,729 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,297 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,694 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,601 |
| Badly Drawn Flags #1 | 0 | - | 4.99 | 60,079 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,263 |
| Real vs. Fake Flags | 0 | - | 4.98 | 123,012 |
| National Football Team Logos | 0 | - | 4.85 | 179,267 |
| Asian Countries with NO Wolves | 0 | - | 4.60 | 18,682 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,214 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,710 |
| Old World... or New World? | 0 | - | 4.66 | 21,247 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,733 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,460 |
| Countries with Fjords | 0 | - | 4.93 | 100,372 |
| Years in History by Picture | 0 | - | 4.44 | 35,233 |
| Where Are These Doors? | 0 | - | 4.45 | 29,679 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,424 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,768 |
| Merged Company Logos #2 | 0 | - | 4.75 | 76,984 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,495 |
| Flags to Languages | 0 | - | 4.95 | 172,847 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,177 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,601 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 62,593 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,504 |
| Fruits by Picture | 0 | - | 4.20 | 805,477 |
| Old Movies by Picture | 0 | - | 4.51 | 24,911 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,780 |
| Name that Object #1 | 0 | - | 3.56 | 96,347 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 336,187 |
| Geography by Picture - B | 0 | - | 4.42 | 55,473 |
| Geography by Picture - H | 0 | - | 4.50 | 58,093 |
| Geography by Picture - N | 0 | - | 4.45 | 42,088 |
| Geography by Picture - R | 0 | - | 4.56 | 40,917 |
| Geography by Picture - T | 0 | - | 4.54 | 57,725 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,621 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 534,459 |
| Random Logos Quiz | 0 | - | 4.31 | 207,451 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 113,841 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,217 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,820 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,706 |
| Pictures by Letter - D | 0 | - | 4.16 | 37,392 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,607 |
| Largest Land Animals of Asia | 0 | - | 3.62 | 8,268 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,387 |
| Countries With No Rivers | 0 | - | 4.96 | 76,144 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,405 |
| Rivers in History | 0 | - | 4.91 | 32,999 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,794 |
| North Sea Countries | 0 | - | 4.92 | 86,713 |
| Black Sea Countries | 0 | - | 4.87 | 60,389 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,102 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,178 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,005 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,230 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,725 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,492 |
| Elements by Picture | 0 | - | 4.28 | 69,678 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,210 |
| Islands by Picture | 0 | - | 4.29 | 106,216 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,131 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 103,060 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 40,956 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 205,705 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,843 |
| International Footballers by Picture | 0 | - | 4.50 | 55,014 |
| Name that Historical Figure #2 | 0 | - | 4.43 | 283,341 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 107,002 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,491 |
| Geography by Picture - A | 0 | - | 4.39 | 60,104 |
| Geography by Picture - D | 0 | - | 4.15 | 45,538 |
| Geography by Picture - F | 0 | - | 4.31 | 50,873 |
| Geography by Picture - G | 0 | - | 4.38 | 47,842 |
| Geography by Picture - J | 0 | - | 4.16 | 38,364 |
| Geography by Picture - K | 0 | - | 4.29 | 33,043 |
| Geography by Picture - C | 0 | - | 4.31 | 56,963 |
| Geography by Picture - L | 0 | - | 4.37 | 58,821 |
| Geography by Picture - M | 0 | - | 4.14 | 40,370 |
| Geography by Picture - P | 0 | - | 4.24 | 42,333 |
| Geography by Picture - S | 0 | - | 4.38 | 46,950 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 279,007 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,808 |
| Flag Maths | 0 | - | 4.69 | 57,696 |
| Satellite Images #1 | 0 | - | 4.46 | 129,125 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,090 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,737 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,733 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,864 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,562 |
| Soccer Team Logos | 0 | - | 4.26 | 372,001 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,408,464 |
| Ultimate Car Logos Quiz | 0 | - | 4.80 | 177,515 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 260,169 |
| Video Game Logos Quiz | 0 | - | 4.40 | 183,073 |
| Movie Logos | 0 | - | 4.33 | 236,659 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,091 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,608 |
| History by Picture - A | 0 | - | 4.25 | 45,564 |
| History by Picture - B | 0 | - | 4.40 | 48,695 |
| History by Picture - C | 0 | - | 4.36 | 54,206 |
| History by Picture - F | 0 | - | 4.35 | 37,692 |
| History by Picture - G | 0 | - | 4.40 | 41,938 |
| History by Picture - D | 0 | - | 4.29 | 44,109 |
| History by Picture - E | 0 | - | 4.27 | 43,728 |
| History by Picture - H | 0 | - | 4.37 | 36,629 |
| History by Picture - K | 0 | - | 4.35 | 33,189 |
| History by Picture - M | 0 | - | 4.17 | 35,989 |
| History by Picture - N | 0 | - | 4.40 | 41,073 |
| History by Picture - O | 0 | - | 4.39 | 36,130 |
| History by Picture - T | 0 | - | 4.20 | 33,169 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 56,980 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 149,895 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,439 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,388 |
| Animal Adjectives | 0 | - | 4.77 | 59,888 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 28,164 |
| Animals: No Vowels #1 | 0 | - | 4.55 | 63,754 |
| Bird in the Answers | 0 | - | 4.10 | 33,372 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,127 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,372 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,362 |
| African Great Lakes | 0 | - | 4.82 | 65,540 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,931 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,067 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,650 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,892 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 268,258 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,596 |
| Name that Object #2 | 0 | - | 3.64 | 15,354 |
| Authors by Picture | 0 | - | 4.48 | 25,444 |
| Name that Object #3 | 0 | - | 3.93 | 14,326 |
| Fruit and Vegetable Emojis | 0 | - | 4.42 | 79,713 |
| WWII Figures by Picture | 0 | - | 4.85 | 51,433 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 55,332 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,381 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 65,555 |
