| Mammals by Picture #3 | 0 | - | 4.41 | 55,484 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 39,563 |
| Mammals by Picture #1 | 0 | - | 4.76 | 82,266 |
| Birds by Picture #1 | 0 | - | 4.45 | 34,394 |
| Animals by Close-up Image | 0 | - | 4.40 | 203,720 |
| Animals A-Z by Picture | 0 | - | 4.14 | 59,356 |
| Extinct Animals by Picture | 0 | - | 4.47 | 30,781 |
| Mammals by Picture #2 | 0 | - | 4.30 | 52,714 |
| Fish by Picture #1 | 0 | - | 4.39 | 102,202 |
| Animals by Skeleton Image | 0 | - | 4.79 | 38,477 |
| Mammals by Picture #4 | 0 | - | 4.03 | 30,627 |
| Sea Creatures by Picture | 0 | - | 4.26 | 16,101 |
| Countries with Wild Tigers | 0 | - | 4.95 | 110,938 |
| Countries with Wild Penguins | 0 | - | 4.93 | 90,219 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.89 | 78,643 |
| Birds by Picture #2 | 0 | - | 4.29 | 30,457 |
| Fish by Picture #2 | 0 | - | 4.06 | 16,274 |
| Birds by Picture #3 | 0 | - | 4.18 | 28,282 |
| Countries with the Most Sheep | 0 | - | 4.89 | 82,443 |
| Countries With The Most Bird Species | 0 | - | 4.86 | 19,499 |
| Countries With Two or More Bear Species | 0 | - | 4.89 | 18,730 |
| Countries with the Most Wolves | 0 | - | 4.88 | 78,706 |
| Countries that Catch the Most Fish | 0 | - | 4.89 | 101,320 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.54 | 23,481 |
| Top 15 Countries with the Most Cows | 0 | - | 4.65 | 89,335 |
| Countries with the Most Wild Elephants | 0 | - | 4.57 | 50,834 |
| Animal Populations of Countries | 0 | - | 4.50 | 40,140 |
| Name that Bug | 0 | - | 4.11 | 44,012 |
| Former Countries by Territory Map | 0 | - | 4.97 | 85,788 |
| Empires by Maps | 0 | - | 4.98 | 94,436 |
| Australian Animals By Picture | 0 | - | 4.44 | 29,207 |
| Animals of Australia | 0 | - | 4.51 | 39,862 |
| Countries with More Cows than People | 0 | - | 4.41 | 47,651 |
| North American Bird-Named Teams | 0 | - | 4.41 | 65,132 |
| Countries with NO Snakes | 0 | - | 4.52 | 62,249 |
| Where Do Musk Oxen Live? | 0 | - | 4.64 | 14,575 |
| "Big Five" African Game Animals | 0 | - | 4.20 | 45,580 |
| Countries with Wild Lions | 0 | - | 4.75 | 21,158 |
| Islands by Shape #2 | 0 | - | 4.87 | 44,992 |
| Reptile Picture Quiz | 0 | - | 4.27 | 13,111 |
| Dog Breed Picture Quiz | 0 | - | 4.32 | 195,909 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 53,839 |
| All Country Flags of the World | 0 | - | 5.00 | 2,969,413 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,365,834 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,002,417 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 671,778 |
| Animals in World History | 0 | - | 4.82 | 40,191 |
| Top 10 Countries with the Most Horses | 0 | - | 4.51 | 64,420 |
| Make a Stained Glass Window | 0 | - | 4.99 | 59,005 |
| Flags with Crescents | 0 | - | 4.98 | 143,503 |
| Country Flag Trivia | 0 | - | 4.84 | 43,909 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.99 | 76,110 |
| Country Flags with the Union Jack | 0 | - | 4.84 | 56,208 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 67,863 |
| Flag Maths | 0 | - | 4.92 | 49,944 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.84 | 41,918 |
| National Soccer Team Logos | 0 | - | 4.83 | 155,482 |
| Largest Land Animals of Africa | 0 | - | 4.34 | 11,640 |
| Top Countries for Shark Attacks | 0 | - | 4.49 | 43,736 |
| Famous Foreheads #1 | 0 | - | 4.49 | 66,428 |
| National Animals | 0 | - | 4.28 | 83,522 |
| Flags to Languages | 0 | - | 4.95 | 158,612 |
| Bodies of Water by Satellite Image #1 | 0 | - | 4.19 | 63,143 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.95 | 40,973 |
| Fruits by Picture | 0 | - | 4.19 | 734,424 |
| Old Movies by Picture | 0 | - | 4.50 | 21,610 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 42,866 |
| Name that Object #1 | 0 | - | 3.56 | 94,931 |
| Years in History by Picture | 0 | - | 4.43 | 30,025 |
| Classic Movies by Movie Posters | 0 | - | 4.43 | 21,401 |
| Geography by Picture - H | 0 | - | 4.52 | 55,149 |
| Geography by Picture - N | 0 | - | 4.46 | 39,544 |
| Geography by Picture - R | 0 | - | 4.55 | 38,584 |
| Geography by Picture - T | 0 | - | 4.63 | 54,723 |
| Name the Pixelated Landmark | 0 | - | 4.83 | 55,055 |
| Car Logos Quiz #1 | 0 | - | 4.42 | 451,708 |
| Random Logos Quiz | 0 | - | 4.34 | 189,626 |
| All North American Pro Sports Logos | 0 | - | 4.74 | 94,776 |
| Pictures by Letter - J | 0 | - | 4.27 | 36,039 |
| Pictures by Letter - B | 0 | - | 4.33 | 39,362 |
| Pictures by Letter - D | 0 | - | 4.13 | 33,765 |
| Pictures by Letter - M | 0 | - | 4.23 | 34,238 |
| History by Picture - N | 0 | - | 4.41 | 36,481 |
| Largest Land Animals of Asia | 0 | - | 3.62 | 7,668 |
| Capital Cities by Body of Water | 0 | - | 4.87 | 53,288 |
| Islands by Shape #1 | 0 | - | 4.27 | 71,558 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.21 | 53,227 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.20 | 46,602 |
| Elements by Picture | 0 | - | 4.29 | 63,536 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.46 | 27,107 |
| Islands by Picture | 0 | - | 4.30 | 91,895 |
| 1940s Celebrities by Picture | 0 | - | 4.46 | 44,234 |
| Name that Historical Figure #1 | 0 | - | 4.64 | 294,350 |
| Name that Historical Figure #2 | 0 | - | 4.44 | 247,877 |
| Geography by Picture - A | 0 | - | 4.35 | 56,844 |
| Geography by Picture - B | 0 | - | 4.36 | 52,391 |
| Geography by Picture - D | 0 | - | 4.10 | 43,155 |
| Geography by Picture - F | 0 | - | 4.25 | 48,263 |
| Geography by Picture - G | 0 | - | 4.39 | 45,318 |
| Geography by Picture - J | 0 | - | 4.14 | 36,341 |
| Geography by Picture - C | 0 | - | 4.28 | 54,199 |
| Geography by Picture - L | 0 | - | 4.34 | 55,786 |
| Geography by Picture - M | 0 | - | 4.11 | 38,355 |
| Geography by Picture - P | 0 | - | 4.28 | 40,109 |
| Geography by Picture - S | 0 | - | 4.35 | 44,521 |
| Random Flags Quiz | 0 | - | 4.41 | 256,026 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 114,591 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 122,650 |
| Satellite Images Quiz #2 | 0 | - | 4.65 | 103,581 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 84,340 |
| Bodies of Water by Satellite Image #2 | 0 | - | 4.29 | 18,241 |
| Satellite Images Quiz #5 | 0 | - | 4.46 | 45,703 |
| Satellite Images Quiz #6 | 0 | - | 4.52 | 35,583 |
| Cities by Picture #1 | 0 | - | 4.66 | 77,084 |
| Soccer Team Logos | 0 | - | 4.22 | 327,801 |
| Brand Logos Quiz #1 | 0 | - | 4.82 | 2,116,714 |
| Ultimate Car Logos Quiz | 0 | - | 4.56 | 123,772 |
| Video Game Logos Quiz | 0 | - | 4.37 | 150,869 |
| Movie Logos | 0 | - | 4.28 | 198,305 |
| Brand Logos That Start With M | 0 | - | 4.41 | 48,403 |
| Brand Logos That Start With B | 0 | - | 4.47 | 48,130 |
| Brand Logos That Start with A | 0 | - | 4.52 | 56,027 |
| History by Picture - A | 0 | - | 4.22 | 40,486 |
| History by Picture - B | 0 | - | 4.35 | 43,172 |
| History by Picture - C | 0 | - | 4.35 | 48,281 |
| History by Picture - F | 0 | - | 4.33 | 33,205 |
| History by Picture - G | 0 | - | 4.39 | 37,420 |
| History by Picture - D | 0 | - | 4.32 | 39,118 |
| History by Picture - E | 0 | - | 4.28 | 38,977 |
| History by Picture - H | 0 | - | 4.38 | 32,346 |
| History by Picture - K | 0 | - | 4.41 | 29,473 |
| History by Picture - M | 0 | - | 4.23 | 32,234 |
| History by Picture - O | 0 | - | 4.37 | 32,112 |
| Name that Nut, Seed, or Bean | 0 | - | 4.64 | 50,259 |
| Baby, Male and Female Animals | 0 | - | 4.41 | 138,140 |
| Animal Adjectives | 0 | - | 4.76 | 56,692 |
| African Great Lakes | 0 | - | 4.84 | 53,256 |
| Art Works Picture Quiz #1 | 0 | - | 4.50 | 96,779 |
| Art Works Picture Quiz #2 | 0 | - | 4.46 | 86,308 |
| Musical Instruments by Picture #1 | 0 | - | 4.54 | 255,349 |
| Shapes and Symbols #2 | 0 | - | 4.03 | 55,618 |
| Flowers by Picture | 0 | - | 4.46 | 101,348 |
| Name that Object #2 | 0 | - | 3.63 | 14,327 |
| Authors by Picture | 0 | - | 4.46 | 23,695 |
| Name that Object #3 | 0 | - | 3.98 | 13,233 |
| WWII Figures by Picture | 0 | - | 4.88 | 40,401 |
| College Sports Logos Quiz #3 | 0 | - | 4.33 | 46,694 |
| Planets By Picture Quiz | 0 | - | 4.55 | 48,576 |
| Songs by Picture Quiz #1 | 0 | - | 4.75 | 57,119 |
| Songs by Picture Quiz #2 | 0 | - | 4.43 | 51,529 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.25 | 64,743 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.25 | 46,969 |
| 1950s Celebrities by Picture #1 | 0 | - | 4.22 | 47,588 |
| 1980s Celebrities by Picture #2 | 0 | - | 4.15 | 65,141 |
| 1980s Celebrities by Picture #1 | 0 | - | 4.04 | 56,492 |
| 1990s Celebrities by Picture #1 | 0 | - | 4.12 | 73,040 |
| 1990s Celebrities by Picture #2 | 0 | - | 4.11 | 65,275 |
| 2000s Celebrities by Picture #2 | 0 | - | 4.13 | 84,736 |
| 1950s Celebrities by Picture #2 | 0 | - | 4.28 | 42,836 |
| International Footballers by Picture | 0 | - | 4.39 | 44,674 |
| Name that Historical Figure #3 | 0 | - | 4.40 | 214,217 |
| Name that Historical Figure #4 | 0 | - | 4.28 | 140,011 |
| Name that Historical Figure #5 | 0 | - | 4.40 | 91,032 |
| Name that Historical Figure #6 | 0 | - | 4.21 | 78,954 |
| Musicians by Picture #1 | 0 | - | 4.36 | 86,466 |
| Musicians by Picture #2 | 0 | - | 4.26 | 60,302 |
| Musicians by Picture #4 | 0 | - | 4.10 | 52,948 |
| Musicians by Picture #3 | 0 | - | 4.15 | 49,832 |
| Emoji Flags | 0 | - | 4.34 | 40,629 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 150,849 |
| Satellite Images Quiz #3 | 0 | - | 4.38 | 70,264 |
| Satellite Images - Island Chains | 0 | - | 4.42 | 57,482 |
| Islands by Satellite Image #1 | 0 | - | 4.71 | 62,237 |
| Peninsulas by Satellite Image | 0 | - | 4.52 | 25,941 |
| Landmarks Picture Quiz #1 | 0 | - | 4.20 | 360,486 |
| Airline Logos | 0 | - | 4.43 | 127,586 |
| Car Logos Quiz #2 | 0 | - | 4.38 | 212,155 |
| Mostly-American Candy Logos | 0 | - | 4.11 | 137,731 |
| Brand Logos That Start With S | 0 | - | 4.35 | 44,710 |
| Brand Logos That Start With D | 0 | - | 4.34 | 49,405 |
| Brand Logos That Start With L | 0 | - | 4.36 | 47,349 |
| Brand Logos That Start With C | 0 | - | 4.13 | 40,412 |
| Pictures by Letter - A | 0 | - | 4.11 | 29,954 |
| Pictures by Letter - E | 0 | - | 3.53 | 31,727 |
| Pictures by Letter - C | 0 | - | 4.09 | 27,091 |
| Pictures by Letter - O | 0 | - | 4.01 | 26,339 |
| Pictures by Letter - G | 0 | - | 4.10 | 25,059 |
| Pictures by Letter - L | 0 | - | 4.12 | 27,498 |
| Pictures by Letter - F | 0 | - | 4.17 | 25,792 |
| Pictures by Letter - Z | 0 | - | 4.19 | 21,141 |
| Pictures by Letter - Y | 0 | - | 4.19 | 23,740 |
| Pictures by Letter - R | 0 | - | 4.12 | 22,240 |
| Pictures by Letter - K | 0 | - | 4.14 | 22,468 |
| Pictures by Letter - I | 0 | - | 4.19 | 27,225 |
| Pictures by Letter - N | 0 | - | 4.11 | 21,865 |
| Pictures by Letter - P | 0 | - | 4.06 | 23,516 |
| Pictures by Letter - U | 0 | - | 4.09 | 18,499 |
| Pictures by Letter - T | 0 | - | 4.33 | 24,885 |
| Vegetables by Picture | 0 | - | 4.32 | 53,677 |
| Animal Anatomy Quiz | 0 | - | 4.38 | 57,875 |
