| Fish... or Not a Fish? | 0 | - | 4.39 | 43,411 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,346 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 28,237 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,432 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,783 |
| Animals in World History | 0 | - | 4.74 | 44,425 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 150,225 |
| Animal Adjectives | 0 | - | 4.77 | 59,963 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,648 |
| Animals: No Vowels #1 | 0 | - | 4.56 | 63,954 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,578 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,524 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,150 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,644 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,491 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,427 |
| Name that Bug | 0 | - | 4.12 | 45,533 |
| Fish by Picture #2 | 0 | - | 4.06 | 18,520 |
| Bird in the Answers | 0 | - | 4.11 | 33,546 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,159 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,163 |
| Word Scramble - Random Animals | 0 | - | 4.41 | 49,102 |
| Animal Emojis | 0 | - | 4.73 | 83,987 |
| Birds in the Answer | 0 | - | 4.56 | 52,798 |
| North American Bird-Named Teams | 0 | - | 4.44 | 67,801 |
| Animals that Start with L | 0 | - | 4.47 | 101,777 |
| Animals that Start with P | 0 | - | 4.45 | 86,013 |
| Animals that Start with S | 0 | - | 4.49 | 87,217 |
| Biggest Animals by Category | 0 | - | 4.18 | 73,087 |
| Word Scramble - Animals #1 | 0 | - | 4.36 | 137,940 |
| Animal Sounds | 0 | - | 4.26 | 191,534 |
| Words that are Animals | 0 | - | 3.88 | 41,446 |
| Extinct Animals | 0 | - | 4.21 | 27,480 |
| Word Scramble - Animals #2 | 0 | - | 4.39 | 52,387 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,340 |
| 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 |
| Animals: No Vowels #2 | 0 | - | 4.49 | 22,047 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,317 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,045 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,079 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,153 |
| Largest Types of Birds | 0 | - | 4.19 | 26,952 |
| Bird Knowledge #1 | 0 | - | 4.33 | 15,724 |
| Metals of Antiquity | 0 | - | 4.94 | 93,287 |
| Megadiverse Countries | 0 | - | 4.96 | 134,745 |
| Fictional Animals #1 | 0 | - | 4.06 | 46,408 |
| Animals A-Z #2 | 0 | - | 4.12 | 66,236 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,788 |
| Animals that Start with A | 0 | - | 4.26 | 111,895 |
| Animals that Start with B | 0 | - | 4.31 | 113,585 |
| Animals that Start with C | 0 | - | 4.23 | 92,745 |
| Animals that Start with D | 0 | - | 4.25 | 86,818 |
| Animals that Start with E | 0 | - | 4.28 | 73,779 |
| Animals that Start with F | 0 | - | 4.28 | 106,958 |
| Animals that Start with G | 0 | - | 4.25 | 80,008 |
| Animals that Start with K | 0 | - | 4.07 | 66,459 |
| Animals that Start with M | 0 | - | 4.23 | 83,896 |
| Animals that Start with R | 0 | - | 4.27 | 87,295 |
| Animals that Start with T | 0 | - | 4.32 | 91,344 |
| Animals that Start with H | 0 | - | 4.31 | 86,207 |
| Animals that Start with O | 0 | - | 4.27 | 88,493 |
| Animals that Start with W | 0 | - | 4.36 | 47,091 |
| Bear in the Answers | 0 | - | 4.29 | 61,839 |
| People with Animal Names #1 | 0 | - | 3.97 | 42,527 |
| Mammals in the Answer | 0 | - | 4.35 | 29,949 |
| Three Letter Animals Quiz | 0 | - | 3.96 | 300,805 |
| Word Puzzles - Animals #1 | 0 | - | 4.37 | 28,611 |
| Word Puzzles - Animals #2 | 0 | - | 4.20 | 24,840 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,219 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,787 |
| Animal Decoder | 0 | - | 4.06 | 15,511 |
| Animal Group Names | 0 | - | 4.06 | 23,169 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,246 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,739 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,831 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,681 |
| Birds A-Z | 0 | - | 4.24 | 36,495 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,664 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,746 |
| Countries with Fjords | 0 | - | 4.94 | 100,757 |
| Animal Varieties #1 | 0 | - | 4.48 | 92,747 |
| Fictional Animals #2 | 0 | - | 3.97 | 36,335 |
| A Whale of a Quiz | 0 | - | 4.41 | 36,054 |
| Animal Varieties #3 | 0 | - | 4.53 | 55,318 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,870 |
| Animal Stereotypes | 0 | - | 4.48 | 37,121 |
| Fictional Birds by Picture | 0 | - | 4.29 | 26,048 |
| 3 and 4 Letter Birds | 0 | - | 4.25 | 23,773 |
| Turkey (The Bird) | 0 | - | 4.15 | 12,402 |
| Horse Vocabulary | 0 | - | 4.23 | 22,720 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,538 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,389 |
| Countries with Glaciers | 0 | - | 4.97 | 105,013 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,642 |
| Animal Varieties #2 | 0 | - | 4.40 | 66,596 |
| Types of Bears | 0 | - | 4.51 | 143,279 |
| Deadly Animals | 0 | - | 4.03 | 110,161 |
| Famous Animals #1 | 0 | - | 4.03 | 239,180 |
| Famous Animals #2 | 0 | - | 4.02 | 57,411 |
| Famous Animals Quiz #3 | 0 | - | 4.24 | 43,240 |
| Animal Facts | 0 | - | 4.15 | 42,962 |
| People with Animal Names Quiz #2 | 0 | - | 3.77 | 26,973 |
| Largest Land Animals of Asia | 0 | - | 3.64 | 8,292 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,642 |
| Three Letter Mammals Quiz | 0 | - | 3.69 | 11,872 |
| Four Letter Mammals Quiz | 0 | - | 3.83 | 12,543 |
| Cat Knowledge | 0 | - | 4.48 | 25,786 |
| Bear Knowledge | 0 | - | 4.54 | 35,060 |
| Cow Knowledge | 0 | - | 4.46 | 24,229 |
| Elephant Knowledge | 0 | - | 4.41 | 23,946 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 56,129 |
| Human Taxonomy | 0 | - | 4.68 | 18,900 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,004 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,245 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,860 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,592 |
| Countries With No Rivers | 0 | - | 4.96 | 76,691 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,951 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,972 |
| North Sea Countries | 0 | - | 4.92 | 87,294 |
| Black Sea Countries | 0 | - | 4.87 | 60,569 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,303 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,401 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,171 |
| French Animal Words | 0 | - | 4.44 | 134,265 |
| Spanish Animal Words | 0 | - | 4.53 | 95,638 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,839 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,790 |
| Animals that Start with N | 0 | - | 3.73 | 31,600 |
| Horse Knowledge | 0 | - | 4.46 | 24,024 |
| Snake Knowledge | 0 | - | 4.49 | 18,790 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,903 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,278 |
| Elements by Picture | 0 | - | 4.27 | 69,828 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,414 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,198 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,568 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,479 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,615 |
| African Great Lakes | 0 | - | 4.82 | 66,008 |
| Rivers and Lakes whose Names are Countries | 0 | - | 4.95 | 45,426 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,339 |
| Nile River Basin Countries on a Map | 0 | - | 4.95 | 50,570 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,029 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,324 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,334 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,321 |
| Animals of Australia | 0 | - | 4.52 | 42,285 |
| Pack Animals | 0 | - | 4.17 | 10,367 |
| Lion Trivia | 0 | - | 4.19 | 16,396 |
| Countries with More Cows than People | 0 | - | 4.45 | 61,194 |
| Mammal Knowledge #1 | 0 | - | 4.20 | 19,641 |
| Mammal Knowledge #2 | 0 | - | 4.13 | 18,485 |
| Insect Knowledge #1 | 0 | - | 4.38 | 12,360 |
| Insect Knowledge #2 | 0 | - | 4.22 | 8,952 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,240 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,511 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,562 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,297 |
| Elements Named for Countries | 0 | - | 4.52 | 24,623 |
| Albert Einstein Trivia | 0 | - | 4.58 | 18,358 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,632 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 119,071 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,580 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,395 |
| Least-Forested Countries | 0 | - | 4.53 | 65,129 |
| Tropical Rainforest Countries | 0 | - | 4.69 | 81,978 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 36,126 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,786 |
| African Physical Geography | 0 | - | 4.51 | 31,654 |
| Asian Physical Geography | 0 | - | 4.60 | 35,477 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,679 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,095 |
| Rivers of the United States | 0 | - | 4.93 | 66,064 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.91 | 115,473 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 412,353 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,713 |
| Flowers by Picture | 0 | - | 4.46 | 105,575 |
| Animal Idioms Quiz #1 | 0 | - | 4.32 | 43,021 |
| Animal Idioms Quiz #2 | 0 | - | 4.33 | 43,566 |
| Books with Animals in the Title #1 | 0 | - | 4.41 | 74,532 |
| Primate Knowledge | 0 | - | 4.17 | 15,297 |
| Multiple Choice Animal Quiz #2 | 0 | - | 4.21 | 15,438 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,268 |
| Birds by Picture #3 | 0 | - | 4.24 | 33,096 |
| Dog Knowledge | 0 | - | 4.46 | 34,317 |
| Fish Knowledge | 0 | - | 4.38 | 25,611 |
| The Shark Quiz!! | 0 | - | 4.25 | 24,697 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,922 |
| The Diseases They Had | 0 | - | 4.15 | 13,984 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,142 |
| Least Forested Countries in Asia | 0 | - | 4.74 | 64,637 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.61 | 37,778 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,581 |
| Geological Extremes | 0 | - | 4.34 | 40,003 |
| Landforms by Country | 0 | - | 4.52 | 51,958 |
| European Physical Geography | 0 | - | 4.26 | 33,468 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,024 |
