| Fish... or Not a Fish? | 0 | - | 4.39 | 43,415 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,352 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,784 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 150,241 |
| Animal Adjectives | 0 | - | 4.77 | 59,965 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,650 |
| Animals: No Vowels #1 | 0 | - | 4.56 | 63,957 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,589 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,535 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,155 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,656 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,491 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,428 |
| Name that Bug | 0 | - | 4.12 | 45,533 |
| Bird in the Answers | 0 | - | 4.11 | 33,557 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,162 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,170 |
| Word Scramble - Random Animals | 0 | - | 4.41 | 49,105 |
| Animal Emojis | 0 | - | 4.73 | 84,006 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,438 |
| Birds in the Answer | 0 | - | 4.56 | 52,801 |
| North American Bird-Named Teams | 0 | - | 4.44 | 67,802 |
| Animals that Start with L | 0 | - | 4.47 | 101,781 |
| Animals that Start with P | 0 | - | 4.45 | 86,018 |
| Animals that Start with S | 0 | - | 4.49 | 87,220 |
| Biggest Animals by Category | 0 | - | 4.18 | 73,088 |
| Word Scramble - Animals #1 | 0 | - | 4.36 | 137,947 |
| Animal Sounds | 0 | - | 4.26 | 191,544 |
| Word Scramble - Animals #2 | 0 | - | 4.39 | 52,388 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,340 |
| Animals: No Vowels #2 | 0 | - | 4.49 | 22,054 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,322 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,054 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,084 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,159 |
| Words that are Animals | 0 | - | 3.88 | 41,447 |
| Extinct Animals | 0 | - | 4.21 | 27,481 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,284 |
| Earliest Domestication of Animals | 0 | - | 4.34 | 28,245 |
| Animals in the News | 0 | - | 4.37 | 26,777 |
| Largest Types of Birds | 0 | - | 4.19 | 26,954 |
| Bird Knowledge #1 | 0 | - | 4.33 | 15,726 |
| Metals of Antiquity | 0 | - | 4.94 | 93,299 |
| Megadiverse Countries | 0 | - | 4.96 | 134,751 |
| People with Animal Names #1 | 0 | - | 3.97 | 42,530 |
| Fictional Animals #1 | 0 | - | 4.06 | 46,409 |
| Mammals in the Answer | 0 | - | 4.35 | 29,949 |
| Three Letter Animals Quiz | 0 | - | 3.96 | 300,811 |
| Animals A-Z #2 | 0 | - | 4.12 | 66,239 |
| Word Puzzles - Animals #1 | 0 | - | 4.37 | 28,614 |
| Word Puzzles - Animals #2 | 0 | - | 4.20 | 24,841 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,227 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,791 |
| Animal Decoder | 0 | - | 4.06 | 15,513 |
| Animal Group Names | 0 | - | 4.06 | 23,171 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,248 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,742 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,835 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,685 |
| Animals that Start with A | 0 | - | 4.26 | 111,897 |
| Animals that Start with B | 0 | - | 4.31 | 113,588 |
| Animals that Start with C | 0 | - | 4.23 | 92,748 |
| Animals that Start with D | 0 | - | 4.25 | 86,820 |
| Animals that Start with E | 0 | - | 4.28 | 73,780 |
| Animals that Start with F | 0 | - | 4.28 | 106,961 |
| Animals that Start with G | 0 | - | 4.25 | 80,010 |
| Animals that Start with K | 0 | - | 4.07 | 66,461 |
| Animals that Start with M | 0 | - | 4.23 | 83,902 |
| Animals that Start with R | 0 | - | 4.27 | 87,298 |
| Animals that Start with T | 0 | - | 4.32 | 91,352 |
| Animals that Start with H | 0 | - | 4.31 | 86,213 |
| Animals that Start with O | 0 | - | 4.27 | 88,498 |
| Animals that Start with W | 0 | - | 4.36 | 47,092 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,667 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,753 |
| Countries with Fjords | 0 | - | 4.94 | 100,764 |
| Bear in the Answers | 0 | - | 4.29 | 61,858 |
| Animal Varieties #1 | 0 | - | 4.48 | 92,754 |
| A Whale of a Quiz | 0 | - | 4.41 | 36,055 |
| Animal Varieties #3 | 0 | - | 4.53 | 55,325 |
| Animal Stereotypes | 0 | - | 4.48 | 37,125 |
| Birds A-Z | 0 | - | 4.24 | 36,497 |
| Fictional Animals #2 | 0 | - | 3.97 | 36,335 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,879 |
| Fish by Picture #2 | 0 | - | 4.06 | 18,525 |
| Fictional Birds by Picture | 0 | - | 4.29 | 26,054 |
| 3 and 4 Letter Birds | 0 | - | 4.25 | 23,773 |
| Turkey (The Bird) | 0 | - | 4.15 | 12,403 |
| Horse Vocabulary | 0 | - | 4.23 | 22,721 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,545 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,393 |
| Countries with Glaciers | 0 | - | 4.97 | 105,025 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,283 |
| Australia True or False | 0 | - | 4.87 | 56,764 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,387 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,644 |
| Animal Varieties #2 | 0 | - | 4.40 | 66,598 |
| Types of Bears | 0 | - | 4.51 | 143,284 |
| Deadly Animals | 0 | - | 4.03 | 110,166 |
| Famous Animals #1 | 0 | - | 4.03 | 239,186 |
| Famous Animals #2 | 0 | - | 4.02 | 57,412 |
| Famous Animals Quiz #3 | 0 | - | 4.24 | 43,242 |
| Animal Facts | 0 | - | 4.15 | 42,964 |
| People with Animal Names Quiz #2 | 0 | - | 3.77 | 26,973 |
| Largest Land Animals of Asia | 0 | - | 3.64 | 8,293 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,655 |
| Three Letter Mammals Quiz | 0 | - | 3.69 | 11,872 |
| Four Letter Mammals Quiz | 0 | - | 3.83 | 12,543 |
| Cat Knowledge | 0 | - | 4.48 | 25,787 |
| Bear Knowledge | 0 | - | 4.54 | 35,060 |
| Cow Knowledge | 0 | - | 4.46 | 24,229 |
| Elephant Knowledge | 0 | - | 4.41 | 23,948 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 56,131 |
| Human Taxonomy | 0 | - | 4.68 | 18,900 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,013 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,246 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,864 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,597 |
| Countries With No Rivers | 0 | - | 4.96 | 76,693 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,963 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,976 |
| North Sea Countries | 0 | - | 4.92 | 87,301 |
| Black Sea Countries | 0 | - | 4.87 | 60,572 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,309 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,407 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,175 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,447 |
| French Animal Words | 0 | - | 4.44 | 134,279 |
| Spanish Animal Words | 0 | - | 4.53 | 95,640 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,846 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,794 |
| Animals that Start with N | 0 | - | 3.73 | 31,602 |
| Horse Knowledge | 0 | - | 4.46 | 24,025 |
| Snake Knowledge | 0 | - | 4.49 | 18,790 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,905 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,279 |
| Elements by Picture | 0 | - | 4.27 | 69,836 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,415 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,200 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,579 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,482 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,617 |
| African Great Lakes | 0 | - | 4.82 | 66,028 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,346 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,328 |
| What Color is It - Multiple Choice | 0 | - | 4.47 | 44,010 |
| England or Wales? | 0 | - | 4.94 | 45,599 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,287 |
| Animals of Australia | 0 | - | 4.52 | 42,287 |
| Pack Animals | 0 | - | 4.17 | 10,368 |
| Lion Trivia | 0 | - | 4.19 | 16,396 |
| Countries with More Cows than People | 0 | - | 4.45 | 61,198 |
| Mammal Knowledge #1 | 0 | - | 4.20 | 19,642 |
| Mammal Knowledge #2 | 0 | - | 4.13 | 18,487 |
| Insect Knowledge #1 | 0 | - | 4.38 | 12,361 |
| Insect Knowledge #2 | 0 | - | 4.22 | 8,954 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,243 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,517 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,563 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,298 |
| Elements Named for Countries | 0 | - | 4.52 | 24,630 |
| Albert Einstein Trivia | 0 | - | 4.58 | 18,361 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,647 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 119,082 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,580 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,399 |
| Least-Forested Countries | 0 | - | 4.53 | 65,139 |
| Tropical Rainforest Countries | 0 | - | 4.69 | 81,980 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 36,128 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,787 |
| African Physical Geography | 0 | - | 4.51 | 31,656 |
| Asian Physical Geography | 0 | - | 4.60 | 35,478 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,681 |
| Rivers and Lakes whose Names are Countries | 0 | - | 4.95 | 45,431 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,098 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,344 |
| Nile River Basin Countries on a Map | 0 | - | 4.95 | 50,572 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,031 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.91 | 115,481 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,327 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,723 |
| Flowers by Picture | 0 | - | 4.46 | 105,578 |
| NBA Basketball Multiple Choice | 0 | - | 4.04 | 35,179 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,695 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,637 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,424 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,232 |
| Japan Multiple Choice | 0 | - | 4.48 | 40,650 |
| 1, 2, 3, or 4? | 0 | - | 4.28 | 69,982 |
| Animal Idioms Quiz #1 | 0 | - | 4.32 | 43,021 |
| Animal Idioms Quiz #2 | 0 | - | 4.33 | 43,568 |
| Primate Knowledge | 0 | - | 4.17 | 15,297 |
| Multiple Choice Animal Quiz #2 | 0 | - | 4.21 | 15,440 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,271 |
| Birds by Picture #3 | 0 | - | 4.24 | 33,101 |
| Dog Knowledge | 0 | - | 4.46 | 34,322 |
| Fish Knowledge | 0 | - | 4.38 | 25,613 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,927 |
| The Diseases They Had | 0 | - | 4.15 | 13,984 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,143 |
