| Animals - Taxonomy to Common Name | 0 | - | 4.81 | 28,404 |
| Animals by Skeleton Image | 0 | - | 4.81 | 46,792 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,921 |
| Animals in World History | 0 | - | 4.74 | 44,627 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,720 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,654 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 150,897 |
| Animal Adjectives | 0 | - | 4.77 | 60,147 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,775 |
| Animals: No Vowels #1 | 0 | - | 4.56 | 64,285 |
| Animals by Close-up Image | 0 | - | 4.42 | 218,808 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,885 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,408 |
| Mammals by Picture #1 | 0 | - | 4.70 | 92,221 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,594 |
| Words Containing Animals #2 | 0 | - | 4.09 | 34,483 |
| Name that Bug | 0 | - | 4.12 | 45,608 |
| Bird in the Answers | 0 | - | 4.11 | 33,889 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,223 |
| Word Scramble - Random Animals | 0 | - | 4.41 | 49,371 |
| Animal Emojis | 0 | - | 4.74 | 85,030 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,738 |
| Birds in the Answer | 0 | - | 4.56 | 52,902 |
| North American Bird-Named Teams | 0 | - | 4.44 | 67,964 |
| Animals that Start with L | 0 | - | 4.47 | 102,337 |
| Animals that Start with P | 0 | - | 4.45 | 86,387 |
| Animals that Start with S | 0 | - | 4.49 | 87,583 |
| Biggest Animals by Category | 0 | - | 4.18 | 73,247 |
| Word Scramble - Animals #1 | 0 | - | 4.36 | 138,309 |
| Animal Sounds | 0 | - | 4.26 | 191,936 |
| Word Scramble - Animals #2 | 0 | - | 4.39 | 52,553 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,455 |
| Animals: No Vowels #2 | 0 | - | 4.50 | 22,616 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,724 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,384 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,247 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,437 |
| Words that are Animals | 0 | - | 3.85 | 41,497 |
| Extinct Animals | 0 | - | 4.16 | 27,555 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,348 |
| Earliest Domestication of Animals | 0 | - | 4.34 | 28,289 |
| Animals in the News | 0 | - | 4.37 | 26,820 |
| Largest Types of Birds | 0 | - | 4.19 | 27,005 |
| Bird Knowledge #1 | 0 | - | 4.33 | 15,769 |
| Metals of Antiquity | 0 | - | 4.95 | 93,759 |
| Megadiverse Countries | 0 | - | 4.96 | 135,155 |
| People with Animal Names #1 | 0 | - | 3.97 | 42,582 |
| Fictional Animals #1 | 0 | - | 4.06 | 46,455 |
| Mammals in the Answer | 0 | - | 4.35 | 29,988 |
| Three Letter Animals Quiz | 0 | - | 3.97 | 301,268 |
| Animals A-Z #1 | 0 | - | 4.40 | 93,844 |
| Animals A-Z #2 | 0 | - | 4.12 | 66,481 |
| Word Puzzles - Animals #1 | 0 | - | 4.37 | 28,689 |
| Word Puzzles - Animals #2 | 0 | - | 4.20 | 24,896 |
| Countries with Wild Tigers | 0 | - | 4.96 | 137,112 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,410 |
| Animal Decoder | 0 | - | 4.06 | 15,573 |
| Animal Group Names | 0 | - | 4.07 | 23,257 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,301 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,791 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 87,422 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,782 |
| Animals that Start with A | 0 | - | 4.26 | 112,340 |
| Animals that Start with B | 0 | - | 4.31 | 114,049 |
| Animals that Start with C | 0 | - | 4.21 | 93,443 |
| Animals that Start with D | 0 | - | 4.25 | 87,187 |
| Animals that Start with E | 0 | - | 4.28 | 74,106 |
| Animals that Start with F | 0 | - | 4.28 | 107,355 |
| Animals that Start with G | 0 | - | 4.25 | 80,323 |
| Animals that Start with K | 0 | - | 4.07 | 66,685 |
| Animals that Start with M | 0 | - | 4.23 | 84,219 |
| Animals that Start with R | 0 | - | 4.28 | 87,590 |
| Animals that Start with T | 0 | - | 4.32 | 92,022 |
| Animals that Start with H | 0 | - | 4.31 | 86,511 |
| Animals that Start with O | 0 | - | 4.27 | 88,762 |
| Animals that Start with W | 0 | - | 4.36 | 47,311 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,803 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,976 |
| Countries with Fjords | 0 | - | 4.94 | 101,184 |
| Bear in the Answers | 0 | - | 4.29 | 62,196 |
| Animal Varieties #1 | 0 | - | 4.48 | 93,075 |
| A Whale of a Quiz | 0 | - | 4.41 | 36,131 |
| Animal Varieties #3 | 0 | - | 4.52 | 55,527 |
| Animal Stereotypes | 0 | - | 4.48 | 37,416 |
| Birds A-Z | 0 | - | 4.24 | 36,590 |
| Fictional Animals #2 | 0 | - | 3.97 | 36,371 |
| Countries with the Most Sheep | 0 | - | 4.93 | 103,510 |
| Head to Head - Animals | 0 | - | 4.88 | 69,837 |
| Fish by Picture #2 | 0 | - | 4.09 | 18,659 |
| Fictional Birds by Picture | 0 | - | 4.29 | 26,188 |
| 3 and 4 Letter Birds | 0 | - | 4.25 | 23,840 |
| Turkey (The Bird) | 0 | - | 4.15 | 12,425 |
| Animals that Start with N | 0 | - | 3.73 | 31,798 |
| Horse Vocabulary | 0 | - | 4.23 | 22,778 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,848 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,826 |
| Countries with Glaciers | 0 | - | 4.97 | 105,677 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,830 |
| Animal Varieties #2 | 0 | - | 4.40 | 66,797 |
| Types of Bears | 0 | - | 4.51 | 143,881 |
| Deadly Animals | 0 | - | 4.02 | 110,728 |
| Famous Animals #1 | 0 | - | 4.03 | 239,871 |
| Famous Animals #2 | 0 | - | 4.02 | 57,569 |
| Famous Animals Quiz #3 | 0 | - | 4.24 | 43,386 |
| Animal Facts | 0 | - | 4.15 | 43,024 |
| People with Animal Names Quiz #2 | 0 | - | 3.77 | 27,015 |
| Largest Land Animals of Asia | 0 | - | 3.64 | 8,333 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,429 |
| Three Letter Mammals Quiz | 0 | - | 3.69 | 11,914 |
| Four Letter Mammals Quiz | 0 | - | 3.83 | 12,596 |
| Cat Knowledge | 0 | - | 4.48 | 25,855 |
| Bear Knowledge | 0 | - | 4.54 | 35,137 |
| Cow Knowledge | 0 | - | 4.46 | 24,296 |
| Elephant Knowledge | 0 | - | 4.41 | 23,994 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 56,312 |
| Human Taxonomy | 0 | - | 4.70 | 18,958 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,804 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,404 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 36,101 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,798 |
| Countries With No Rivers | 0 | - | 4.96 | 77,032 |
| Name a Valid Country on Each River | 0 | - | 4.95 | 62,470 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,121 |
| North Sea Countries | 0 | - | 4.92 | 87,605 |
| Black Sea Countries | 0 | - | 4.87 | 60,700 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,510 |
| Caspian Sea Countries | 0 | - | 4.91 | 63,616 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,333 |
| French Animal Words | 0 | - | 4.44 | 134,836 |
| Spanish Animal Words | 0 | - | 4.53 | 95,880 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 55,095 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,999 |
| Animals - Real or Fictional? | 0 | - | 4.57 | 49,715 |
| Horse Knowledge | 0 | - | 4.46 | 24,100 |
| Snake Knowledge | 0 | - | 4.49 | 18,852 |
| Top 15 Countries with the Most Cows | 0 | - | 4.73 | 107,419 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,451 |
| Elements by Picture | 0 | - | 4.27 | 70,188 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,508 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,474 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,819 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,584 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,904 |
| African Great Lakes | 0 | - | 4.82 | 66,757 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,808 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,676 |
| Animals of Australia | 0 | - | 4.52 | 42,430 |
| Pack Animals | 0 | - | 4.20 | 10,419 |
| Lion Trivia | 0 | - | 4.19 | 16,427 |
| Countries with More Cows than People | 0 | - | 4.46 | 61,563 |
| Mammal Knowledge #1 | 0 | - | 4.20 | 19,702 |
| Mammal Knowledge #2 | 0 | - | 4.13 | 18,537 |
| Insect Knowledge #1 | 0 | - | 4.38 | 12,429 |
| Insect Knowledge #2 | 0 | - | 4.22 | 9,002 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,496 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,928 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,641 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,338 |
| Elements Named for Countries | 0 | - | 4.52 | 24,896 |
| Albert Einstein Trivia | 0 | - | 4.58 | 18,426 |
| Planets By Picture Quiz | 0 | - | 4.49 | 57,201 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 119,725 |
| Countries with the Most Mangroves | 0 | - | 4.54 | 34,701 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,745 |
| Least-Forested Countries | 0 | - | 4.53 | 65,350 |
| Tropical Rainforest Countries | 0 | - | 4.69 | 82,264 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 36,181 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.27 | 70,839 |
| African Physical Geography | 0 | - | 4.51 | 31,779 |
| Asian Physical Geography | 0 | - | 4.61 | 35,588 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,891 |
| Rivers and Lakes whose Names are Countries | 0 | - | 4.95 | 45,678 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,321 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,762 |
| Nile River Basin Countries on a Map | 0 | - | 4.95 | 50,847 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,199 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.91 | 116,185 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,536 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.88 | 29,222 |
| Flowers by Picture | 0 | - | 4.46 | 105,800 |
| Animal Idioms Quiz #1 | 0 | - | 4.29 | 43,127 |
| Animal Idioms Quiz #2 | 0 | - | 4.33 | 43,684 |
| Primate Knowledge | 0 | - | 4.17 | 15,331 |
| Animals by Alternate Etymology | 0 | - | 3.49 | 9,635 |
| Multiple Choice Animal Quiz #2 | 0 | - | 4.21 | 15,496 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,603 |
| Birds by Picture #3 | 0 | - | 4.24 | 33,392 |
| Dog Knowledge | 0 | - | 4.46 | 34,511 |
| Fish Knowledge | 0 | - | 4.38 | 25,706 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 69,183 |
| The Diseases They Had | 0 | - | 4.15 | 14,048 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,180 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.62 | 37,906 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,741 |
| Geological Extremes | 0 | - | 4.34 | 40,089 |
| Landforms by Country | 0 | - | 4.52 | 52,004 |
| European Physical Geography | 0 | - | 4.26 | 33,570 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,159 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,671 |
| Rivers of the United States | 0 | - | 4.93 | 66,518 |
