| Birds by Picture #2 | 0 | - | 4.33 | 36,163 |
| Birds by Picture #3 | 0 | - | 4.24 | 33,012 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,664 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 62,723 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,125 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,360 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,444 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,072 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,458 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,311 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,172 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,943 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,030 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,060 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,642 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,207 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,785 |
| Name that Bug | 0 | - | 4.12 | 45,502 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,523 |
| Fish by Picture #2 | 0 | - | 4.06 | 18,484 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,205 |
| Empires by Maps | 0 | - | 4.98 | 119,421 |
| Merged Company Logos #1 | 0 | - | 4.91 | 105,909 |
| Animals of Australia | 0 | - | 4.52 | 42,241 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,113 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,262 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 103,474 |
| Play-Doh People from History | 0 | - | 4.99 | 94,320 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,641 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 49,030 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 205,824 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,275 |
| All Country Flags of the World | 0 | - | 5.00 | 3,631,709 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,531,479 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,089,905 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 731,551 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,150 |
| Flags with Crescents | 0 | - | 4.98 | 168,503 |
| Country Flag Trivia | 0 | - | 4.81 | 56,456 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,029 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,952 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,589 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,864 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,738 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,413 |
| Real vs. Fake Flags | 0 | - | 4.98 | 123,323 |
| National Football Team Logos | 0 | - | 4.85 | 179,550 |
| Movies with Animals in the Title #1 | 0 | - | 4.20 | 183,359 |
| Movies with Animals in the Title #2 | 0 | - | 4.28 | 108,175 |
| National Animals | 0 | - | 4.24 | 89,502 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,055 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,662 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,714 |
| Years in History by Picture | 0 | - | 4.44 | 35,329 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,539 |
| Flags to Languages | 0 | - | 4.95 | 173,053 |
| Bodies of Water by Satellite Image #1 | 0 | - | 4.20 | 71,579 |
| Merged Company Logos #2 | 0 | - | 4.75 | 77,114 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,214 |
| Disney Animals | 0 | - | 4.27 | 239,222 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,766 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,382 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,636 |
| Fruits by Picture | 0 | - | 4.20 | 805,961 |
| Old Movies by Picture | 0 | - | 4.51 | 24,972 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,838 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 336,558 |
| Geography by Picture - B | 0 | - | 4.42 | 55,506 |
| Geography by Picture - H | 0 | - | 4.50 | 58,123 |
| Geography by Picture - N | 0 | - | 4.45 | 42,116 |
| Geography by Picture - R | 0 | - | 4.56 | 40,942 |
| Geography by Picture - T | 0 | - | 4.54 | 57,753 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,719 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 535,633 |
| Random Logos Quiz | 0 | - | 4.31 | 207,719 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 114,196 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,266 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,874 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,766 |
| Pictures by Letter - D | 0 | - | 4.13 | 37,444 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,659 |
| Animals in the Bible | 0 | - | 4.83 | 36,268 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,602 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,484 |
| Animals in World History | 0 | - | 4.74 | 44,351 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,863 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,255 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,789 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,542 |
| Elements by Picture | 0 | - | 4.27 | 69,744 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,233 |
| Islands by Picture | 0 | - | 4.29 | 106,407 |
| Name that Object #1 | 0 | - | 3.56 | 96,387 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,170 |
| WWII Figures by Picture | 0 | - | 4.89 | 64,180 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 103,236 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 41,011 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,889 |
| International Footballers by Picture | 0 | - | 4.50 | 55,174 |
| Name that Historical Figure #2 | 0 | - | 4.41 | 283,691 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 107,182 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,581 |
| Geography by Picture - A | 0 | - | 4.39 | 60,140 |
| Geography by Picture - D | 0 | - | 4.15 | 45,565 |
| Geography by Picture - F | 0 | - | 4.31 | 50,901 |
| Geography by Picture - G | 0 | - | 4.38 | 47,871 |
| Geography by Picture - J | 0 | - | 4.16 | 38,389 |
| Geography by Picture - K | 0 | - | 4.29 | 33,063 |
| Geography by Picture - C | 0 | - | 4.31 | 56,993 |
| Geography by Picture - L | 0 | - | 4.37 | 58,852 |
| Geography by Picture - M | 0 | - | 4.14 | 40,390 |
| Geography by Picture - P | 0 | - | 4.24 | 42,361 |
| Geography by Picture - S | 0 | - | 4.38 | 46,973 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 279,392 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,018 |
| Flag Maths | 0 | - | 4.64 | 57,711 |
| Satellite Images #1 | 0 | - | 4.46 | 129,185 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,149 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,784 |
| Bodies of Water by Satellite Image #2 | 0 | - | 4.36 | 19,636 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,791 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,890 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,667 |
| Soccer Team Logos | 0 | - | 4.26 | 372,623 |
| Brand Logos Quiz #1 | 0 | - | 4.82 | 2,411,866 |
| Ultimate Car Logos Quiz | 0 | - | 4.80 | 178,258 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 260,611 |
| Video Game Logos Quiz | 0 | - | 4.40 | 183,305 |
| Movie Logos | 0 | - | 4.33 | 237,132 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,247 |
| Brand Logos That Start with A | 0 | - | 4.52 | 69,794 |
| History by Picture - A | 0 | - | 4.25 | 45,649 |
| History by Picture - B | 0 | - | 4.40 | 48,797 |
| History by Picture - C | 0 | - | 4.36 | 54,311 |
| History by Picture - F | 0 | - | 4.35 | 37,763 |
| History by Picture - G | 0 | - | 4.40 | 42,021 |
| History by Picture - D | 0 | - | 4.29 | 44,184 |
| History by Picture - E | 0 | - | 4.27 | 43,802 |
| History by Picture - H | 0 | - | 4.37 | 36,688 |
| History by Picture - K | 0 | - | 4.35 | 33,250 |
| History by Picture - M | 0 | - | 4.17 | 36,048 |
| History by Picture - N | 0 | - | 4.40 | 41,144 |
| History by Picture - O | 0 | - | 4.39 | 36,200 |
| History by Picture - T | 0 | - | 4.20 | 33,224 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 57,052 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,777 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,740 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,607 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,864 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,938 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,115 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.91 | 96,300 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,762 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,002 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 268,423 |
| Flowers by Picture | 0 | - | 4.46 | 105,135 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,631 |
| Name that Object #2 | 0 | - | 3.64 | 15,368 |
| Authors by Picture | 0 | - | 4.48 | 25,472 |
| Name that Object #3 | 0 | - | 3.93 | 14,338 |
| Fruit and Vegetable Emojis | 0 | - | 4.42 | 79,858 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 55,421 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,484 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 65,664 |
| Songs by Picture Quiz #2 | 0 | - | 4.42 | 58,657 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 164,897 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.27 | 70,222 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.26 | 51,269 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.24 | 51,042 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.19 | 71,476 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.13 | 79,198 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.16 | 72,154 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.15 | 94,929 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.29 | 46,033 |
| Name that Historical Figure #3 | 0 | - | 4.36 | 238,658 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 158,626 |
| Name that Historical Figure #6 | 0 | - | 4.26 | 92,920 |
| Musicians by Picture #1 | 0 | - | 4.39 | 107,933 |
| Musicians by Picture #2 | 0 | - | 4.29 | 75,843 |
| Musicians by Picture #4 | 0 | - | 4.07 | 64,463 |
| Musicians by Picture #3 | 0 | - | 4.10 | 58,642 |
| Emoji Flags | 0 | - | 4.35 | 43,937 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 170,617 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.67 | 37,661 |
| Languages by Combined Flags | 0 | - | 4.53 | 99,559 |
| Satellite Images Quiz #3 | 0 | - | 4.35 | 73,321 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 66,075 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 70,400 |
| Peninsulas by Satellite Image | 0 | - | 4.53 | 27,731 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 393,757 |
| Airline Logos | 0 | - | 4.45 | 140,311 |
| Fast Food Logos Quiz | 0 | - | 4.44 | 247,601 |
| Mostly-American Candy Logos | 0 | - | 4.14 | 158,404 |
| Brand Logos That Start With S | 0 | - | 4.37 | 57,167 |
| Brand Logos That Start With B | 0 | - | 4.38 | 59,628 |
| Brand Logos That Start With D | 0 | - | 4.37 | 61,123 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,672 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,340 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,374 |
| Pictures by Letter - G | 0 | - | 4.14 | 28,030 |
