| Animals by Skeleton Image | 0 | - | 4.80 | 46,247 |
| Animals - Taxonomy to Common Name | 0 | - | 4.80 | 28,212 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,757 |
| Animals in World History | 0 | - | 4.74 | 44,387 |
| Pick a Picture - Animal Relations | 0 | - | 4.94 | 55,175 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,368 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 150,125 |
| Animal Adjectives | 0 | - | 4.77 | 59,941 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,625 |
| Animals: No Vowels #1 | 0 | - | 4.56 | 63,891 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,465 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,475 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,109 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,535 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,477 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,415 |
| Name that Bug | 0 | - | 4.12 | 45,512 |
| Bird in the Answers | 0 | - | 4.11 | 33,482 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,147 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,098 |
| Word Scramble - Random Animals | 0 | - | 4.41 | 49,057 |
| Animal Emojis | 0 | - | 4.73 | 83,864 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,351 |
| Birds in the Answer | 0 | - | 4.56 | 52,774 |
| North American Bird-Named Teams | 0 | - | 4.44 | 67,769 |
| Animals that Start with L | 0 | - | 4.47 | 101,733 |
| Animals that Start with P | 0 | - | 4.45 | 85,982 |
| Animals that Start with S | 0 | - | 4.49 | 87,175 |
| Biggest Animals by Category | 0 | - | 4.18 | 73,066 |
| Word Scramble - Animals #1 | 0 | - | 4.36 | 137,894 |
| Animal Sounds | 0 | - | 4.26 | 191,454 |
| Word Scramble - Animals #2 | 0 | - | 4.39 | 52,354 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,325 |
| Animals: No Vowels #2 | 0 | - | 4.49 | 21,950 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,231 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,981 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,047 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,095 |
| Words that are Animals | 0 | - | 3.88 | 41,443 |
| Extinct Animals | 0 | - | 4.21 | 27,464 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,272 |
| Earliest Domestication of Animals | 0 | - | 4.34 | 28,233 |
| Animals in the News | 0 | - | 4.37 | 26,765 |
| Largest Types of Birds | 0 | - | 4.19 | 26,940 |
| Bird Knowledge #1 | 0 | - | 4.33 | 15,720 |
| Metals of Antiquity | 0 | - | 4.94 | 93,209 |
| Megadiverse Countries | 0 | - | 4.96 | 134,657 |
| People with Animal Names #1 | 0 | - | 3.97 | 42,515 |
| Fictional Animals #1 | 0 | - | 4.06 | 46,400 |
| Mammals in the Answer | 0 | - | 4.35 | 29,944 |
| Three Letter Animals Quiz | 0 | - | 3.96 | 300,720 |
| Animals A-Z #2 | 0 | - | 4.12 | 66,199 |
| Word Puzzles - Animals #1 | 0 | - | 4.37 | 28,561 |
| Word Puzzles - Animals #2 | 0 | - | 4.20 | 24,810 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,116 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,713 |
| Animal Decoder | 0 | - | 4.06 | 15,502 |
| Animal Group Names | 0 | - | 4.06 | 23,156 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,235 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,731 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,771 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,658 |
| Animals that Start with A | 0 | - | 4.26 | 111,838 |
| Animals that Start with B | 0 | - | 4.31 | 113,543 |
| Animals that Start with C | 0 | - | 4.23 | 92,688 |
| Animals that Start with D | 0 | - | 4.25 | 86,778 |
| Animals that Start with E | 0 | - | 4.28 | 73,746 |
| Animals that Start with F | 0 | - | 4.28 | 106,909 |
| Animals that Start with G | 0 | - | 4.25 | 79,978 |
| Animals that Start with K | 0 | - | 4.07 | 66,437 |
| Animals that Start with M | 0 | - | 4.23 | 83,856 |
| Animals that Start with R | 0 | - | 4.27 | 87,251 |
| Animals that Start with T | 0 | - | 4.32 | 91,306 |
| Animals that Start with H | 0 | - | 4.31 | 86,161 |
| Animals that Start with O | 0 | - | 4.27 | 88,460 |
| Animals that Start with W | 0 | - | 4.36 | 47,060 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,640 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,691 |
| Countries with Fjords | 0 | - | 4.93 | 100,638 |
| Bear in the Answers | 0 | - | 4.29 | 61,773 |
| Animal Varieties #1 | 0 | - | 4.48 | 92,687 |
| A Whale of a Quiz | 0 | - | 4.41 | 36,040 |
| Animal Varieties #3 | 0 | - | 4.53 | 55,276 |
| Animal Stereotypes | 0 | - | 4.48 | 37,048 |
| Birds A-Z | 0 | - | 4.24 | 36,473 |
| Fictional Animals #2 | 0 | - | 3.97 | 36,324 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,810 |
| Head to Head - Animals | 0 | - | 4.88 | 69,221 |
| Fish by Picture #2 | 0 | - | 4.06 | 18,501 |
| Fictional Birds by Picture | 0 | - | 4.29 | 26,014 |
| 3 and 4 Letter Birds | 0 | - | 4.25 | 23,764 |
| Turkey (The Bird) | 0 | - | 4.15 | 12,398 |
| Horse Vocabulary | 0 | - | 4.22 | 22,708 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,469 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,189 |
| Countries with Glaciers | 0 | - | 4.97 | 104,937 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,620 |
| Animal Varieties #2 | 0 | - | 4.40 | 66,562 |
| Types of Bears | 0 | - | 4.51 | 143,248 |
| Deadly Animals | 0 | - | 4.03 | 110,104 |
| Famous Animals #1 | 0 | - | 4.03 | 239,122 |
| Famous Animals #2 | 0 | - | 4.02 | 57,397 |
| Famous Animals Quiz #3 | 0 | - | 4.24 | 43,223 |
| Animal Facts | 0 | - | 4.15 | 42,951 |
| People with Animal Names Quiz #2 | 0 | - | 3.77 | 26,966 |
| Largest Land Animals of Asia | 0 | - | 3.64 | 8,286 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,558 |
| Three Letter Mammals Quiz | 0 | - | 3.69 | 11,864 |
| Four Letter Mammals Quiz | 0 | - | 3.83 | 12,537 |
| Cat Knowledge | 0 | - | 4.48 | 25,766 |
| Bear Knowledge | 0 | - | 4.54 | 35,043 |
| Cow Knowledge | 0 | - | 4.46 | 24,218 |
| Elephant Knowledge | 0 | - | 4.41 | 23,936 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 56,092 |
| Human Taxonomy | 0 | - | 4.68 | 18,897 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,919 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,227 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,828 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,527 |
| Countries With No Rivers | 0 | - | 4.96 | 76,494 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,740 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,928 |
| North Sea Countries | 0 | - | 4.92 | 86,896 |
| Black Sea Countries | 0 | - | 4.87 | 60,518 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,233 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,336 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,111 |
| French Animal Words | 0 | - | 4.44 | 134,165 |
| Spanish Animal Words | 0 | - | 4.53 | 95,592 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,806 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,762 |
| Animals - Real or Fictional? | 0 | - | 4.57 | 49,268 |
| Animals that Start with N | 0 | - | 3.73 | 31,581 |
| Horse Knowledge | 0 | - | 4.45 | 24,005 |
| Snake Knowledge | 0 | - | 4.49 | 18,782 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,883 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,249 |
| Elements by Picture | 0 | - | 4.27 | 69,776 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,403 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,133 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,525 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,445 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,533 |
| African Great Lakes | 0 | - | 4.82 | 65,833 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,195 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,227 |
| Animals of Australia | 0 | - | 4.52 | 42,263 |
| Pack Animals | 0 | - | 4.23 | 10,360 |
| Lion Trivia | 0 | - | 4.19 | 16,393 |
| Countries with More Cows than People | 0 | - | 4.45 | 61,092 |
| Mammal Knowledge #1 | 0 | - | 4.20 | 19,632 |
| Mammal Knowledge #2 | 0 | - | 4.13 | 18,478 |
| Insect Knowledge #1 | 0 | - | 4.38 | 12,348 |
| Insect Knowledge #2 | 0 | - | 4.22 | 8,945 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,194 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,432 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,555 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,282 |
| Elements Named for Countries | 0 | - | 4.52 | 24,586 |
| Albert Einstein Trivia | 0 | - | 4.58 | 18,348 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,553 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 118,964 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,557 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,339 |
| Least-Forested Countries | 0 | - | 4.53 | 65,096 |
| Tropical Rainforest Countries | 0 | - | 4.69 | 81,923 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 36,117 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,778 |
| African Physical Geography | 0 | - | 4.51 | 31,639 |
| Asian Physical Geography | 0 | - | 4.61 | 35,466 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,627 |
| Rivers and Lakes whose Names are Countries | 0 | - | 4.95 | 45,366 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,034 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,223 |
| Nile River Basin Countries on a Map | 0 | - | 4.95 | 50,503 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,962 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 115,309 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,268 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,602 |
| Flowers by Picture | 0 | - | 4.46 | 105,385 |
| Animal Idioms Quiz #1 | 0 | - | 4.32 | 43,001 |
| Animal Idioms Quiz #2 | 0 | - | 4.33 | 43,550 |
| Primate Knowledge | 0 | - | 4.17 | 15,291 |
| Animals by Alternate Etymology | 0 | - | 3.49 | 9,597 |
| Multiple Choice Animal Quiz #2 | 0 | - | 4.21 | 15,430 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,206 |
| Birds by Picture #3 | 0 | - | 4.24 | 33,040 |
| Dog Knowledge | 0 | - | 4.46 | 34,289 |
| Fish Knowledge | 0 | - | 4.38 | 25,588 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,869 |
| The Diseases They Had | 0 | - | 4.15 | 13,972 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,136 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.61 | 37,758 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,553 |
| Geological Extremes | 0 | - | 4.34 | 39,988 |
| Landforms by Country | 0 | - | 4.52 | 51,950 |
| European Physical Geography | 0 | - | 4.26 | 33,441 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,006 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,450 |
| Biggest City by River | 0 | - | 4.41 | 52,786 |
