| Animals by Skeleton Image | 0 | - | 4.81 | 46,661 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,589 |
| Name that Bug | 0 | - | 4.12 | 45,588 |
| Animals by Close-up Image | 0 | - | 4.42 | 218,555 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,781 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,331 |
| Mammals by Picture #1 | 0 | - | 4.70 | 92,023 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,971 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,294 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,305 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,644 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,604 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,275 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,203 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,355 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,634 |
| Countries with the Most Sheep | 0 | - | 4.92 | 103,385 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,318 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,795 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,258 |
| Animals in World History | 0 | - | 4.74 | 44,576 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,658 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,750 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 55,033 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,936 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,735 |
| Top 15 Countries with the Most Cows | 0 | - | 4.74 | 107,301 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,112 |
| Empires by Maps | 0 | - | 4.98 | 120,952 |
| Fish by Picture #2 | 0 | - | 4.07 | 18,619 |
| Merged Company Logos #1 | 0 | - | 4.90 | 106,790 |
| Flowers by Picture | 0 | - | 4.46 | 105,729 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,810 |
| Countries with More Cows than People | 0 | - | 4.45 | 61,449 |
| North American Bird-Named Teams | 0 | - | 4.44 | 67,918 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,616 |
| All Country Flags of the World | 0 | - | 5.00 | 3,680,025 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,418 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,415 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,325 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,344 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 104,706 |
| Play-Doh People from History | 0 | - | 4.99 | 95,062 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 61,241 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 49,562 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 49,693 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,754 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,540,038 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,094,284 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 734,393 |
| Name the Cat Flags | 0 | - | 5.00 | 40,414 |
| Extinct Animals | 0 | - | 4.16 | 27,527 |
| Earliest Domestication of Animals | 0 | - | 4.34 | 28,273 |
| Animals in the News | 0 | - | 4.37 | 26,805 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 69,104 |
| Megadiverse Countries | 0 | - | 4.96 | 135,021 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,683 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,674 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,504 |
| Birds by Picture #3 | 0 | - | 4.24 | 33,315 |
| Flags with Crescents | 0 | - | 4.98 | 170,101 |
| Country Flag Trivia | 0 | - | 4.81 | 57,352 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,139 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,810 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,791 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,492 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,478 |
| Badly Drawn Flags #1 | 0 | - | 4.99 | 60,681 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,049 |
| Real vs. Fake Flags | 0 | - | 4.98 | 124,721 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 181,807 |
| National Football Team Logos | 0 | - | 4.85 | 180,851 |
| Asian Countries with NO Wolves | 0 | - | 4.60 | 18,897 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,282 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,772 |
| Old World... or New World? | 0 | - | 4.66 | 21,377 |
| Top Countries for Shark Attacks | 0 | - | 4.47 | 45,859 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,900 |
| Countries with Fjords | 0 | - | 4.94 | 101,049 |
| Years in History by Picture | 0 | - | 4.44 | 35,605 |
| Where Are These Doors? | 0 | - | 4.45 | 30,077 |
| Famous Foreheads #1 | 0 | - | 4.47 | 75,089 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,841 |
| Merged Company Logos #2 | 0 | - | 4.75 | 77,775 |
| Flags to Languages | 0 | - | 4.95 | 173,923 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,697 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 33,022 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 63,362 |
| Terrestrial Biomes - Map Quiz | 0 | - | 4.99 | 21,435 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,325 |
| Fruits by Picture | 0 | - | 4.19 | 807,985 |
| Old Movies by Picture | 0 | - | 4.51 | 25,149 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 47,130 |
| Name that Object #1 | 0 | - | 3.57 | 96,533 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 338,127 |
| Geography by Picture - B | 0 | - | 4.42 | 55,675 |
| Geography by Picture - H | 0 | - | 4.50 | 58,281 |
| Geography by Picture - N | 0 | - | 4.45 | 42,250 |
| Geography by Picture - R | 0 | - | 4.56 | 41,070 |
| Geography by Picture - T | 0 | - | 4.54 | 57,899 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 63,169 |
| Car Logos Quiz #1 | 0 | - | 4.52 | 540,902 |
| Random Logos Quiz | 0 | - | 4.33 | 208,797 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 115,562 |
| Pictures by Letter - A | 0 | - | 4.18 | 33,512 |
| Pictures by Letter - J | 0 | - | 4.31 | 40,133 |
| Pictures by Letter - B | 0 | - | 4.32 | 44,082 |
| Pictures by Letter - D | 0 | - | 4.14 | 37,681 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,880 |
| Largest Land Animals of Asia | 0 | - | 3.64 | 8,315 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,730 |
| Countries with the Most Lakes Over 100 Km² | 0 | - | 4.83 | 32,446 |
| Countries With No Rivers | 0 | - | 4.96 | 76,918 |
| Name a Valid Country on Each River | 0 | - | 4.95 | 62,280 |
| Rivers in History | 0 | - | 4.92 | 33,335 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,074 |
| North Sea Countries | 0 | - | 4.92 | 87,493 |
| Black Sea Countries | 0 | - | 4.87 | 60,651 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,454 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,548 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,278 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,418 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 58,049 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,773 |
| Elements by Picture | 0 | - | 4.27 | 70,080 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,385 |
| Islands by Picture | 0 | - | 4.28 | 107,252 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,314 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 104,111 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 41,356 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 206,351 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 48,089 |
| International Footballers by Picture | 0 | - | 4.50 | 55,891 |
| Name that Historical Figure #2 | 0 | - | 4.42 | 285,067 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 107,991 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.51 | 50,957 |
| Geography by Picture - A | 0 | - | 4.39 | 60,325 |
| Geography by Picture - D | 0 | - | 4.15 | 45,710 |
| Geography by Picture - F | 0 | - | 4.31 | 51,070 |
| Geography by Picture - G | 0 | - | 4.39 | 48,000 |
| Geography by Picture - J | 0 | - | 4.16 | 38,513 |
| Geography by Picture - K | 0 | - | 4.29 | 33,174 |
| Geography by Picture - C | 0 | - | 4.31 | 57,129 |
| Geography by Picture - L | 0 | - | 4.37 | 59,038 |
| Geography by Picture - M | 0 | - | 4.14 | 40,506 |
| Geography by Picture - P | 0 | - | 4.24 | 42,480 |
| Geography by Picture - S | 0 | - | 4.38 | 47,086 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 280,990 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,843 |
| Flag Maths | 0 | - | 4.64 | 57,792 |
| Satellite Images #1 | 0 | - | 4.47 | 129,485 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,402 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,989 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,009 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,043 |
| Cities by Picture #1 | 0 | - | 4.73 | 86,182 |
| Soccer Team Logos | 0 | - | 4.26 | 375,629 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,428,651 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 262,654 |
| Video Game Logos Quiz | 0 | - | 4.40 | 184,362 |
| Movie Logos | 0 | - | 4.33 | 239,130 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,656 |
| History by Picture - A | 0 | - | 4.26 | 45,932 |
| History by Picture - B | 0 | - | 4.40 | 49,118 |
| History by Picture - C | 0 | - | 4.36 | 54,634 |
| History by Picture - F | 0 | - | 4.35 | 38,001 |
| History by Picture - G | 0 | - | 4.40 | 42,248 |
| History by Picture - D | 0 | - | 4.29 | 44,439 |
| History by Picture - E | 0 | - | 4.25 | 44,054 |
| History by Picture - H | 0 | - | 4.37 | 36,897 |
| History by Picture - K | 0 | - | 4.35 | 33,454 |
| History by Picture - M | 0 | - | 4.17 | 36,234 |
| History by Picture - N | 0 | - | 4.40 | 41,360 |
| History by Picture - O | 0 | - | 4.39 | 36,400 |
| History by Picture - T | 0 | - | 4.20 | 33,395 |
| Name that Nut, Seed, or Bean | 0 | - | 4.63 | 57,408 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 150,693 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,560 |
| Words Containing Animals #2 | 0 | - | 4.09 | 34,466 |
| Animal Adjectives | 0 | - | 4.77 | 60,074 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 28,337 |
| Animals: No Vowels #1 | 0 | - | 4.56 | 64,194 |
| Bird in the Answers | 0 | - | 4.11 | 33,800 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,206 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,543 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,805 |
| African Great Lakes | 0 | - | 4.82 | 66,515 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,655 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,572 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,470 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,537 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 269,240 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,832 |
| Name that Object #2 | 0 | - | 3.64 | 15,468 |
| Authors by Picture | 0 | - | 4.48 | 25,561 |
| Name that Object #3 | 0 | - | 3.93 | 14,425 |
| Fruit and Vegetable Emojis | 0 | - | 4.45 | 90,341 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,766 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 55,946 |
| Planets By Picture Quiz | 0 | - | 4.49 | 57,013 |
