| Birds by Picture #3 | 0 | - | 4.24 | 32,956 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,590 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 62,581 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,004 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,173 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,365 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,014 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,318 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,230 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,075 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,870 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,979 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,989 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,627 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,116 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,768 |
| Name that Bug | 0 | - | 4.12 | 45,484 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,491 |
| Fish by Picture #2 | 0 | - | 4.08 | 18,460 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,935 |
| Empires by Maps | 0 | - | 4.98 | 119,008 |
| Merged Company Logos #1 | 0 | - | 4.91 | 105,694 |
| Animals of Australia | 0 | - | 4.52 | 42,204 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,073 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,249 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 103,165 |
| Play-Doh People from History | 0 | - | 4.99 | 94,123 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,504 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 48,901 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 205,687 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,182 |
| All Country Flags of the World | 0 | - | 5.00 | 3,619,166 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,529,475 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,088,889 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 730,735 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,022 |
| Flags with Crescents | 0 | - | 4.98 | 168,065 |
| Country Flag Trivia | 0 | - | 4.81 | 56,199 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,742 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,710 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,280 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,682 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,592 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,251 |
| Real vs. Fake Flags | 0 | - | 4.98 | 122,983 |
| National Football Team Logos | 0 | - | 4.85 | 179,233 |
| Movies with Animals in the Title #1 | 0 | - | 4.21 | 183,176 |
| Movies with Animals in the Title #2 | 0 | - | 4.28 | 108,096 |
| National Animals | 0 | - | 4.24 | 89,222 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,914 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,556 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,621 |
| Years in History by Picture | 0 | - | 4.44 | 35,228 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,412 |
| Flags to Languages | 0 | - | 4.95 | 172,823 |
| Bodies of Water by Satellite Image #1 | 0 | - | 4.20 | 71,441 |
| Merged Company Logos #2 | 0 | - | 4.75 | 76,963 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,177 |
| Disney Animals | 0 | - | 4.27 | 238,981 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,653 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,310 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,493 |
| Fruits by Picture | 0 | - | 4.20 | 805,419 |
| Old Movies by Picture | 0 | - | 4.51 | 24,905 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,774 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 336,147 |
| Geography by Picture - B | 0 | - | 4.42 | 55,468 |
| Geography by Picture - H | 0 | - | 4.50 | 58,091 |
| Geography by Picture - N | 0 | - | 4.45 | 42,085 |
| Geography by Picture - R | 0 | - | 4.56 | 40,917 |
| Geography by Picture - T | 0 | - | 4.54 | 57,721 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,615 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 534,320 |
| Random Logos Quiz | 0 | - | 4.31 | 207,423 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 113,810 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,211 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,810 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,700 |
| Pictures by Letter - D | 0 | - | 4.16 | 37,389 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,599 |
| Animals in the Bible | 0 | - | 4.83 | 36,071 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,565 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,332 |
| Animals in World History | 0 | - | 4.74 | 44,305 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,771 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,225 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,716 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,485 |
| Elements by Picture | 0 | - | 4.28 | 69,666 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,206 |
| Islands by Picture | 0 | - | 4.29 | 106,200 |
| Name that Object #1 | 0 | - | 3.56 | 96,346 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,126 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,746 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 103,042 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 40,948 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,837 |
| International Footballers by Picture | 0 | - | 4.50 | 54,997 |
| Name that Historical Figure #2 | 0 | - | 4.43 | 283,309 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 106,988 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,484 |
| Geography by Picture - A | 0 | - | 4.39 | 60,101 |
| Geography by Picture - D | 0 | - | 4.15 | 45,538 |
| Geography by Picture - F | 0 | - | 4.31 | 50,868 |
| Geography by Picture - G | 0 | - | 4.38 | 47,840 |
| Geography by Picture - J | 0 | - | 4.16 | 38,361 |
| Geography by Picture - K | 0 | - | 4.29 | 33,042 |
| Geography by Picture - C | 0 | - | 4.31 | 56,960 |
| Geography by Picture - L | 0 | - | 4.37 | 58,815 |
| Geography by Picture - M | 0 | - | 4.14 | 40,370 |
| Geography by Picture - P | 0 | - | 4.24 | 42,332 |
| Geography by Picture - S | 0 | - | 4.38 | 46,947 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,973 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,792 |
| Flag Maths | 0 | - | 4.74 | 57,695 |
| Satellite Images #1 | 0 | - | 4.46 | 129,124 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,084 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,735 |
| Bodies of Water by Satellite Image #2 | 0 | - | 4.36 | 19,617 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,729 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,864 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,548 |
| Soccer Team Logos | 0 | - | 4.26 | 371,932 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,408,089 |
| Ultimate Car Logos Quiz | 0 | - | 4.80 | 177,427 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 260,110 |
| Video Game Logos Quiz | 0 | - | 4.40 | 183,046 |
| Movie Logos | 0 | - | 4.33 | 236,620 |
| Brand Logos That Start With M | 0 | - | 4.45 | 62,079 |
| Brand Logos That Start With B | 0 | - | 4.38 | 59,455 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,591 |
| History by Picture - A | 0 | - | 4.25 | 45,554 |
| History by Picture - B | 0 | - | 4.40 | 48,688 |
| History by Picture - C | 0 | - | 4.36 | 54,197 |
| History by Picture - F | 0 | - | 4.35 | 37,683 |
| History by Picture - G | 0 | - | 4.40 | 41,930 |
| History by Picture - D | 0 | - | 4.29 | 44,101 |
| History by Picture - E | 0 | - | 4.27 | 43,721 |
| History by Picture - H | 0 | - | 4.37 | 36,624 |
| History by Picture - K | 0 | - | 4.35 | 33,181 |
| History by Picture - M | 0 | - | 4.17 | 35,981 |
| History by Picture - N | 0 | - | 4.40 | 41,066 |
| History by Picture - O | 0 | - | 4.39 | 36,124 |
| History by Picture - T | 0 | - | 4.20 | 33,164 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 56,971 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,731 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,692 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,570 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,831 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,874 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,015 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.91 | 96,245 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,640 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,881 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 268,228 |
| Flowers by Picture | 0 | - | 4.46 | 105,094 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,591 |
| Name that Object #2 | 0 | - | 3.64 | 15,353 |
| Authors by Picture | 0 | - | 4.48 | 25,440 |
| Name that Object #3 | 0 | - | 3.93 | 14,326 |
| Fruit and Vegetable Emojis | 0 | - | 4.43 | 79,702 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 55,319 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,373 |
| Songs by Picture Quiz #1 | 0 | - | 4.68 | 65,544 |
| Songs by Picture Quiz #2 | 0 | - | 4.42 | 58,564 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 164,620 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.27 | 70,135 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.26 | 51,213 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.24 | 50,992 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.19 | 71,375 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.13 | 79,120 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.16 | 72,067 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.15 | 94,792 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.29 | 45,985 |
| Name that Historical Figure #3 | 0 | - | 4.36 | 238,367 |
| Name that Historical Figure #4 | 0 | - | 4.29 | 158,419 |
| Name that Historical Figure #6 | 0 | - | 4.27 | 92,752 |
| Musicians by Picture #1 | 0 | - | 4.39 | 107,608 |
| Musicians by Picture #2 | 0 | - | 4.29 | 75,621 |
| Musicians by Picture #4 | 0 | - | 4.07 | 64,293 |
| Musicians by Picture #3 | 0 | - | 4.10 | 58,522 |
| Emoji Flags | 0 | - | 4.35 | 43,884 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 170,307 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.64 | 37,571 |
| Languages by Combined Flags | 0 | - | 4.53 | 99,389 |
| Satellite Images Quiz #3 | 0 | - | 4.35 | 73,290 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 65,929 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 70,278 |
| Peninsulas by Satellite Image | 0 | - | 4.53 | 27,706 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 393,432 |
| Airline Logos | 0 | - | 4.45 | 140,162 |
| Fast Food Logos Quiz | 0 | - | 4.44 | 247,349 |
| Mostly-American Candy Logos | 0 | - | 4.14 | 158,186 |
| Brand Logos That Start With S | 0 | - | 4.37 | 56,986 |
| Brand Logos That Start With D | 0 | - | 4.37 | 60,945 |
| Brand Logos That Start With L | 0 | - | 4.39 | 60,482 |
| Brand Logos That Start With C | 0 | - | 4.17 | 49,205 |
| Pictures by Letter - E | 0 | - | 3.49 | 34,338 |
| Pictures by Letter - G | 0 | - | 4.14 | 27,981 |
| Pictures by Letter - L | 0 | - | 4.14 | 30,398 |
