| Animals by Skeleton Image | 0 | - | 4.81 | 46,803 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,739 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,835 |
| Name that Bug | 0 | - | 4.12 | 45,609 |
| Animals by Close-up Image | 0 | - | 4.42 | 218,827 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,901 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,413 |
| Mammals by Picture #1 | 0 | - | 4.70 | 92,241 |
| Countries with Wild Tigers | 0 | - | 4.96 | 137,131 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,427 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 87,435 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,747 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,734 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,395 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,251 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,444 |
| Animals by Range on a World Map | 0 | - | 4.96 | 25,740 |
| Countries with the Most Sheep | 0 | - | 4.93 | 103,515 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,352 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,439 |
| Animals in World History | 0 | - | 4.74 | 44,629 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,941 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,787 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 55,101 |
| Animal Populations of Countries | 0 | - | 4.52 | 44,002 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,777 |
| Top 15 Countries with the Most Cows | 0 | - | 4.74 | 107,422 |
| Former Countries by Territory Map | 0 | - | 4.96 | 103,452 |
| Empires by Maps | 0 | - | 4.98 | 121,448 |
| Fish by Picture #2 | 0 | - | 4.09 | 18,662 |
| Merged Company Logos #1 | 0 | - | 4.90 | 107,025 |
| Flowers by Picture | 0 | - | 4.46 | 105,805 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,939 |
| Countries with More Cows than People | 0 | - | 4.46 | 61,569 |
| North American Bird-Named Teams | 0 | - | 4.44 | 67,966 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,643 |
| All Country Flags of the World | 0 | - | 5.00 | 3,698,787 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,455 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,503 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,341 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,442 |
| Visual Memory Test - Random Cartoons | 0 | - | 4.98 | 105,059 |
| Play-Doh People from History | 0 | - | 4.99 | 95,321 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 61,417 |
| Jeppy in Disguise #1 | 0 | - | 4.92 | 49,837 |
| Jeppy in Disguise #2 | 0 | - | 4.96 | 49,913 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,933 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,543,182 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,095,853 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 735,512 |
| Name the Cat Flags | 0 | - | 5.00 | 40,495 |
| Extinct Animals | 0 | - | 4.16 | 27,555 |
| Earliest Domestication of Animals | 0 | - | 4.34 | 28,289 |
| Animals in the News | 0 | - | 4.37 | 26,822 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 69,186 |
| Megadiverse Countries | 0 | - | 4.96 | 135,161 |
| Make a Stained Glass Window | 0 | - | 5.00 | 68,880 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,735 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,608 |
| Birds by Picture #3 | 0 | - | 4.24 | 33,399 |
| Flags with Crescents | 0 | - | 4.98 | 170,892 |
| Country Flag Trivia | 0 | - | 4.81 | 57,748 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,572 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,143 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,239 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,722 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,753 |
| Badly Drawn Flags #1 | 0 | - | 4.99 | 60,876 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,311 |
| Real vs. Fake Flags | 0 | - | 4.98 | 125,371 |
| Ultimate Car Logos Quiz | 0 | - | 4.81 | 183,034 |
| National Football Team Logos | 0 | - | 4.85 | 181,343 |
| Asian Countries with NO Wolves | 0 | - | 4.60 | 18,962 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,301 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,792 |
| Animals - Taxonomy to Common Name | 0 | - | 4.81 | 28,414 |
| Old World... or New World? | 0 | - | 4.66 | 21,407 |
| Top Countries for Shark Attacks | 0 | - | 4.47 | 45,903 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,984 |
| Countries with Fjords | 0 | - | 4.94 | 101,198 |
| Years in History by Picture | 0 | - | 4.44 | 35,693 |
| Where Are These Doors? | 0 | - | 4.45 | 30,146 |
| Famous Foreheads #1 | 0 | - | 4.47 | 75,267 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,870 |
| Merged Company Logos #2 | 0 | - | 4.75 | 77,955 |
| Flags to Languages | 0 | - | 4.95 | 174,251 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,893 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 33,136 |
| Build-a-Bird by Guessing Countries | 0 | - | 4.99 | 63,568 |
| Terrestrial Biomes - Map Quiz | 0 | - | 4.99 | 21,640 |
| Fruits by Picture | 0 | - | 4.19 | 808,637 |
| Old Movies by Picture | 0 | - | 4.51 | 25,202 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 47,242 |
| Name that Object #1 | 0 | - | 3.57 | 96,570 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 338,719 |
| Geography by Picture - B | 0 | - | 4.42 | 55,734 |
| Geography by Picture - H | 0 | - | 4.50 | 58,334 |
| Geography by Picture - N | 0 | - | 4.45 | 42,303 |
| Geography by Picture - R | 0 | - | 4.56 | 41,111 |
| Geography by Picture - T | 0 | - | 4.54 | 57,956 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,320 |
| Car Logos Quiz #1 | 0 | - | 4.52 | 542,666 |
| Random Logos Quiz | 0 | - | 4.33 | 209,110 |
| All North American Pro Sports Logos | 0 | - | 4.70 | 115,978 |
| Pictures by Letter - A | 0 | - | 4.18 | 33,579 |
| Pictures by Letter - J | 0 | - | 4.31 | 40,219 |
| Pictures by Letter - B | 0 | - | 4.32 | 44,180 |
| Pictures by Letter - D | 0 | - | 4.14 | 37,749 |
| Pictures by Letter - M | 0 | - | 4.24 | 37,945 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,575 |
| Largest Land Animals of Asia | 0 | - | 3.64 | 8,334 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,802 |
| Countries with the Most Lakes Over 100 Km² | 0 | - | 4.83 | 32,580 |
| Countries With No Rivers | 0 | - | 4.96 | 77,046 |
| Name a Valid Country on Each River | 0 | - | 4.95 | 62,681 |
| Rivers in History | 0 | - | 4.92 | 33,410 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,126 |
| North Sea Countries | 0 | - | 4.92 | 87,613 |
| Black Sea Countries | 0 | - | 4.87 | 60,702 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,515 |
| Caspian Sea Countries | 0 | - | 4.91 | 63,621 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,335 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,465 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 58,171 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 50,881 |
| Elements by Picture | 0 | - | 4.27 | 70,206 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,465 |
| Islands by Picture | 0 | - | 4.28 | 107,538 |
| Classic Movies by Movie Posters | 0 | - | 4.45 | 24,414 |
| 1980s Movie Silhouettes | 0 | - | 4.97 | 104,459 |
| Famous Landmarks Out Of Focus #2 | 0 | - | 4.37 | 41,455 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 206,525 |
| 1940s Celebrities by Picture | 0 | - | 4.43 | 48,155 |
| International Footballers by Picture | 0 | - | 4.51 | 56,184 |
| Name that Historical Figure #2 | 0 | - | 4.42 | 285,585 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 108,284 |
| Name that Historical Figure #7 - U.S. Edition | 0 | - | 4.51 | 51,082 |
| Geography by Picture - A | 0 | - | 4.39 | 60,384 |
| Geography by Picture - D | 0 | - | 4.15 | 45,751 |
| Geography by Picture - F | 0 | - | 4.31 | 51,129 |
| Geography by Picture - G | 0 | - | 4.39 | 48,047 |
| Geography by Picture - J | 0 | - | 4.16 | 38,558 |
| Geography by Picture - K | 0 | - | 4.29 | 33,216 |
| Geography by Picture - C | 0 | - | 4.31 | 57,185 |
| Geography by Picture - L | 0 | - | 4.37 | 59,091 |
| Geography by Picture - M | 0 | - | 4.14 | 40,548 |
| Geography by Picture - P | 0 | - | 4.24 | 42,528 |
| Geography by Picture - S | 0 | - | 4.38 | 47,144 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 281,599 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,188 |
| Flag Maths | 0 | - | 4.61 | 57,815 |
| Satellite Images #1 | 0 | - | 4.47 | 129,595 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,491 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,075 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,095 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,101 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,432 |
| Soccer Team Logos | 0 | - | 4.26 | 376,679 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,433,846 |
| Car Logos Quiz #2 | 0 | - | 4.43 | 263,315 |
| Video Game Logos Quiz | 0 | - | 4.40 | 184,725 |
| Movie Logos | 0 | - | 4.33 | 239,796 |
| Brand Logos That Start with A | 0 | - | 4.52 | 70,924 |
| History by Picture - A | 0 | - | 4.26 | 46,047 |
| History by Picture - B | 0 | - | 4.40 | 49,226 |
| History by Picture - C | 0 | - | 4.36 | 54,757 |
| History by Picture - F | 0 | - | 4.35 | 38,101 |
| History by Picture - G | 0 | - | 4.40 | 42,342 |
| History by Picture - D | 0 | - | 4.29 | 44,550 |
| History by Picture - E | 0 | - | 4.25 | 44,136 |
| History by Picture - H | 0 | - | 4.37 | 36,991 |
| History by Picture - K | 0 | - | 4.35 | 33,531 |
| History by Picture - M | 0 | - | 4.17 | 36,311 |
| History by Picture - N | 0 | - | 4.40 | 41,452 |
| History by Picture - O | 0 | - | 4.39 | 36,482 |
| History by Picture - T | 0 | - | 4.20 | 33,473 |
| Name that Nut, Seed, or Bean | 0 | - | 4.57 | 57,565 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 150,917 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,596 |
| Words Containing Animals #2 | 0 | - | 4.09 | 34,485 |
| Animal Adjectives | 0 | - | 4.77 | 60,151 |
| Animals: No Vowels #1 | 0 | - | 4.56 | 64,289 |
| Bird in the Answers | 0 | - | 4.11 | 33,899 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,225 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,590 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,911 |
| African Great Lakes | 0 | - | 4.82 | 66,774 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,820 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,686 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 119,662 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 105,718 |
| Musical Instruments by Picture #1 | 0 | - | 4.52 | 269,547 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,909 |
| Name that Object #2 | 0 | - | 3.64 | 15,491 |
| Authors by Picture | 0 | - | 4.48 | 25,605 |
| Name that Object #3 | 0 | - | 3.93 | 14,443 |
| Fruit and Vegetable Emojis | 0 | - | 4.45 | 90,663 |
| WWII Figures by Picture | 0 | - | 4.89 | 66,047 |
| College Sports Logos Quiz #3 | 0 | - | 4.30 | 56,060 |
| Planets By Picture Quiz | 0 | - | 4.49 | 57,213 |
