| Pick a Picture - Animal Relations | 0 | - | 4.94 | 54,806 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,467 |
| Name that Bug | 0 | - | 4.12 | 45,442 |
| Animals by Skeleton Image | 0 | - | 4.80 | 45,960 |
| Animals by Close-up Image | 0 | - | 4.42 | 216,544 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,217 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,902 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,078 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,579 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,288 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,399 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,057 |
| Animals A-Z by Picture | 0 | - | 4.08 | 65,870 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,752 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,887 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,841 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,188 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,369 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,222 |
| Countries with the Most Wolves | 0 | - | 4.92 | 106,998 |
| Animals in World History | 0 | - | 4.74 | 44,203 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,452 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,586 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,606 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,590 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,505 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,765 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,474 |
| Empires by Maps | 0 | - | 4.98 | 118,349 |
| Fish by Picture #2 | 0 | - | 4.08 | 18,390 |
| Merged Company Logos #1 | 0 | - | 4.91 | 105,379 |
| Flowers by Picture | 0 | - | 4.46 | 104,999 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,084 |
| Countries with More Cows than People | 0 | - | 4.43 | 54,611 |
| North American Bird-Named Teams | 0 | - | 4.43 | 67,610 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,503 |
| All Country Flags of the World | 0 | - | 5.00 | 3,598,975 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,199 |
| Countries with Wild Lions | 0 | - | 4.77 | 25,962 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,252 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,981 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 102,695 |
| Play-Doh People from History | 0 | - | 4.99 | 93,808 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,277 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 48,708 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 48,860 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 60,994 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,525,788 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,126 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,469 |
| Name the Cat Flags | 0 | - | 5.00 | 40,026 |
| Extinct Animals | 0 | - | 4.18 | 27,399 |
| Earliest Domestication of Animals | 0 | - | 4.33 | 28,208 |
| Animals in the News | 0 | - | 4.37 | 26,711 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,657 |
| Megadiverse Countries | 0 | - | 4.97 | 133,866 |
| Make a Stained Glass Window | 0 | - | 5.00 | 67,778 |
| Birds by Picture #2 | 0 | - | 4.33 | 35,927 |
| Birds by Picture #3 | 0 | - | 4.24 | 32,821 |
| Flags with Crescents | 0 | - | 4.98 | 167,459 |
| Country Flag Trivia | 0 | - | 4.81 | 55,876 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,344 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,418 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,842 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,410 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,340 |
| Badly Drawn Flags #1 | 0 | - | 4.99 | 59,867 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 51,990 |
| Real vs. Fake Flags | 0 | - | 4.98 | 122,477 |
| National Football Team Logos | 0 | - | 4.84 | 178,551 |
| Asian Countries with NO Wolves | 0 | - | 4.60 | 18,597 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,191 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,687 |
| Old World... or New World? | 0 | - | 4.66 | 21,197 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,666 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,361 |
| Countries with Fjords | 0 | - | 4.93 | 100,181 |
| Years in History by Picture | 0 | - | 4.44 | 35,081 |
| Where Are These Doors? | 0 | - | 4.45 | 29,572 |
| Famous Foreheads #1 | 0 | - | 4.47 | 74,187 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,735 |
| Merged Company Logos #2 | 0 | - | 4.75 | 76,709 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,438 |
| Flags to Languages | 0 | - | 4.95 | 172,433 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.96 | 50,145 |
| Countries With The Most Bird Species | 0 | - | 4.92 | 32,355 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 62,267 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,221 |
| Fruits by Picture | 0 | - | 4.20 | 804,496 |
| Old Movies by Picture | 0 | - | 4.51 | 24,782 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 46,652 |
| Name that Object #1 | 0 | - | 3.56 | 96,292 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,412 |
| Geography by Picture - B | 0 | - | 4.42 | 55,399 |
| Geography by Picture - H | 0 | - | 4.49 | 58,034 |
| Geography by Picture - N | 0 | - | 4.45 | 42,041 |
| Geography by Picture - R | 0 | - | 4.55 | 40,872 |
| Geography by Picture - T | 0 | - | 4.54 | 57,669 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,397 |
| Car Logos Quiz #1 | 0 | - | 4.44 | 531,702 |
| Random Logos Quiz | 0 | - | 4.32 | 206,957 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 113,177 |
| Pictures by Letter - A | 0 | - | 4.17 | 33,114 |
| Pictures by Letter - J | 0 | - | 4.31 | 39,707 |
| Pictures by Letter - B | 0 | - | 4.31 | 43,601 |
| Pictures by Letter - D | 0 | - | 4.16 | 37,296 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,512 |
| Largest Land Animals of Asia | 0 | - | 3.62 | 8,254 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,279 |
| Countries With No Rivers | 0 | - | 4.96 | 76,011 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,217 |
| Rivers in History | 0 | - | 4.91 | 32,911 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,734 |
| North Sea Countries | 0 | - | 4.92 | 86,588 |
| Black Sea Countries | 0 | - | 4.87 | 60,330 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,010 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,094 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,944 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,177 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 57,604 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,390 |
| Elements by Picture | 0 | - | 4.28 | 69,525 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,151 |
| Islands by Picture | 0 | - | 4.29 | 105,838 |
| Classic Movies by Movie Posters | 0 | - | 4.44 | 24,027 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 102,459 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 40,814 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 205,469 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 47,756 |
| International Footballers by Picture | 0 | - | 4.50 | 54,666 |
| Name that Historical Figure #2 | 0 | - | 4.43 | 282,516 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 106,576 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.50 | 50,276 |
| Geography by Picture - A | 0 | - | 4.39 | 60,042 |
| Geography by Picture - D | 0 | - | 4.15 | 45,481 |
| Geography by Picture - F | 0 | - | 4.31 | 50,819 |
| Geography by Picture - G | 0 | - | 4.38 | 47,780 |
| Geography by Picture - J | 0 | - | 4.16 | 38,332 |
| Geography by Picture - K | 0 | - | 4.28 | 33,011 |
| Geography by Picture - C | 0 | - | 4.31 | 56,899 |
| Geography by Picture - L | 0 | - | 4.37 | 58,746 |
| Geography by Picture - M | 0 | - | 4.14 | 40,341 |
| Geography by Picture - P | 0 | - | 4.24 | 42,293 |
| Geography by Picture - S | 0 | - | 4.38 | 46,903 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,257 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,399 |
| Flag Maths | 0 | - | 4.78 | 57,670 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 128,990 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,970 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,635 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,635 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,798 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,329 |
| Soccer Team Logos | 0 | - | 4.26 | 370,582 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,400,825 |
| Ultimate Car Logos Quiz | 0 | - | 4.79 | 175,996 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 259,108 |
| Video Game Logos Quiz | 0 | - | 4.40 | 182,570 |
| Movie Logos | 0 | - | 4.33 | 235,713 |
| Brand Logos That Start With M | 0 | - | 4.45 | 61,716 |
| Brand Logos That Start With B | 0 | - | 4.41 | 59,157 |
| Brand Logos That Start with A | 0 | - | 4.51 | 69,198 |
| History by Picture - A | 0 | - | 4.25 | 45,443 |
| History by Picture - B | 0 | - | 4.40 | 48,554 |
| History by Picture - C | 0 | - | 4.36 | 54,062 |
| History by Picture - F | 0 | - | 4.35 | 37,570 |
| History by Picture - G | 0 | - | 4.40 | 41,830 |
| History by Picture - D | 0 | - | 4.29 | 43,990 |
| History by Picture - E | 0 | - | 4.27 | 43,610 |
| History by Picture - H | 0 | - | 4.37 | 36,525 |
| History by Picture - K | 0 | - | 4.35 | 33,090 |
| History by Picture - M | 0 | - | 4.17 | 35,898 |
| History by Picture - N | 0 | - | 4.40 | 40,977 |
| History by Picture - O | 0 | - | 4.39 | 36,016 |
| History by Picture - T | 0 | - | 4.20 | 33,079 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 56,818 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 149,590 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,381 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,347 |
| Animal Adjectives | 0 | - | 4.77 | 59,820 |
| Animals - Taxonomy to Common Name | 0 | - | 4.79 | 28,091 |
| Animals: No Vowels #1 | 0 | - | 4.57 | 63,549 |
| Bird in the Answers | 0 | - | 4.10 | 33,258 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,094 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,330 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,205 |
| African Great Lakes | 0 | - | 4.82 | 65,100 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,672 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,873 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,437 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,616 |
| Musical Instruments by Picture #1 | 0 | - | 4.53 | 267,853 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,523 |
| Name that Object #2 | 0 | - | 3.64 | 15,318 |
| Authors by Picture | 0 | - | 4.48 | 25,389 |
| Name that Object #3 | 0 | - | 3.93 | 14,297 |
| Fruit and Vegetable Emojis | 0 | - | 4.42 | 79,410 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,486 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 55,030 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,147 |
