| Fish... or Not a Fish? | 0 | - | 4.39 | 43,191 |
| Animals by Skeleton Image | 0 | - | 4.80 | 45,961 |
| Animal Anatomy Quiz | 0 | - | 4.38 | 59,645 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 149,591 |
| Animal Adjectives | 0 | - | 4.77 | 59,820 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,505 |
| Animals: No Vowels #1 | 0 | - | 4.57 | 63,549 |
| Animals by Close-up Image | 0 | - | 4.42 | 216,545 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,217 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,902 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,079 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,381 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,347 |
| Name that Bug | 0 | - | 4.12 | 45,442 |
| Bird in the Answers | 0 | - | 4.10 | 33,258 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,094 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,788 |
| Word Scramble - Random Animals | 0 | - | 4.41 | 48,885 |
| Animal Emojis | 0 | - | 4.69 | 83,272 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,059 |
| Birds in the Answer | 0 | - | 4.56 | 52,692 |
| North American Bird-Named Teams | 0 | - | 4.43 | 67,610 |
| Animals that Start with L | 0 | - | 4.47 | 101,221 |
| Animals that Start with P | 0 | - | 4.45 | 85,619 |
| Animals that Start with S | 0 | - | 4.49 | 86,778 |
| Biggest Animals by Category | 0 | - | 4.18 | 72,929 |
| Word Scramble - Animals #1 | 0 | - | 4.36 | 137,603 |
| Animal Sounds | 0 | - | 4.26 | 191,140 |
| Word Scramble - Animals #2 | 0 | - | 4.39 | 52,242 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,200 |
| Animals: No Vowels #2 | 0 | - | 4.57 | 21,436 |
| Animals A-Z by Picture | 0 | - | 4.08 | 65,870 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,752 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,887 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,842 |
| Words that are Animals | 0 | - | 3.88 | 41,405 |
| Extinct Animals | 0 | - | 4.18 | 27,399 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,222 |
| Earliest Domestication of Animals | 0 | - | 4.33 | 28,208 |
| Animals in the News | 0 | - | 4.37 | 26,711 |
| Largest Types of Birds | 0 | - | 4.19 | 26,889 |
| Bird Knowledge #1 | 0 | - | 4.33 | 15,678 |
| Metals of Antiquity | 0 | - | 4.94 | 92,875 |
| Megadiverse Countries | 0 | - | 4.97 | 133,867 |
| People with Animal Names #1 | 0 | - | 3.97 | 42,463 |
| Fictional Animals #1 | 0 | - | 4.06 | 46,334 |
| Mammals in the Answer | 0 | - | 4.35 | 29,917 |
| Three Letter Animals Quiz | 0 | - | 3.97 | 300,304 |
| Animals A-Z #2 | 0 | - | 4.11 | 66,036 |
| Word Puzzles - Animals #1 | 0 | - | 4.37 | 28,514 |
| Word Puzzles - Animals #2 | 0 | - | 4.20 | 24,757 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,579 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,289 |
| Animal Decoder | 0 | - | 4.06 | 15,457 |
| Animal Group Names | 0 | - | 4.06 | 23,098 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,191 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,687 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,399 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,586 |
| Animals that Start with A | 0 | - | 4.26 | 111,203 |
| Animals that Start with B | 0 | - | 4.31 | 112,690 |
| Animals that Start with C | 0 | - | 4.23 | 92,189 |
| Animals that Start with D | 0 | - | 4.25 | 86,111 |
| Animals that Start with E | 0 | - | 4.28 | 73,361 |
| Animals that Start with F | 0 | - | 4.28 | 106,489 |
| Animals that Start with G | 0 | - | 4.25 | 79,649 |
| Animals that Start with K | 0 | - | 4.06 | 66,163 |
| Animals that Start with M | 0 | - | 4.24 | 83,538 |
| Animals that Start with R | 0 | - | 4.27 | 86,602 |
| Animals that Start with T | 0 | - | 4.32 | 90,615 |
| Animals that Start with H | 0 | - | 4.31 | 85,856 |
| Animals that Start with O | 0 | - | 4.27 | 88,193 |
| Animals that Start with W | 0 | - | 4.35 | 46,820 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,532 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,362 |
| Countries with Fjords | 0 | - | 4.93 | 100,181 |
| Animal Varieties Quiz #1 | 0 | - | 4.48 | 92,389 |
| A Whale of a Quiz | 0 | - | 4.41 | 35,958 |
| Animal Varieties #3 | 0 | - | 4.53 | 55,074 |
| Animal Stereotypes | 0 | - | 4.48 | 36,749 |
| Birds A-Z | 0 | - | 4.24 | 36,335 |
| Bear in the Answers | 0 | - | 4.29 | 61,600 |
| Fictional Animals #2 | 0 | - | 3.97 | 36,289 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,370 |
| Fish by Picture #2 | 0 | - | 4.08 | 18,392 |
| Fictional Birds by Picture | 0 | - | 4.29 | 25,868 |
| 3 and 4 Letter Birds | 0 | - | 4.25 | 23,713 |
| Turkey (The Bird) | 0 | - | 4.15 | 12,382 |
| Horse Vocabulary | 0 | - | 4.22 | 22,668 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,219 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,605 |
| Countries with Glaciers | 0 | - | 4.97 | 104,634 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,033 |
| Australia True or False | 0 | - | 4.87 | 56,488 |
| Animal Varieties #2 | 0 | - | 4.40 | 66,399 |
| Types of Bears | 0 | - | 4.51 | 143,076 |
| Deadly Animals | 0 | - | 4.03 | 109,873 |
| Famous Animals #1 | 0 | - | 4.03 | 238,794 |
| Famous Animals #2 | 0 | - | 4.02 | 57,320 |
| Famous Animals Quiz #3 | 0 | - | 4.24 | 43,145 |
| Animal Facts | 0 | - | 4.15 | 42,902 |
| People with Animal Names Quiz #2 | 0 | - | 3.77 | 26,941 |
| Largest Land Animals of Asia | 0 | - | 3.62 | 8,254 |
| Countries with the Most Wolves | 0 | - | 4.92 | 106,999 |
| Three Letter Mammals Quiz | 0 | - | 3.69 | 11,829 |
| Four Letter Mammals Quiz | 0 | - | 3.83 | 12,504 |
| Cat Knowledge | 0 | - | 4.49 | 25,717 |
| Bear Knowledge | 0 | - | 4.54 | 34,980 |
| Cow Knowledge | 0 | - | 4.46 | 24,162 |
| Elephant Knowledge | 0 | - | 4.41 | 23,897 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 55,970 |
| Human Taxonomy | 0 | - | 4.68 | 18,839 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,453 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,467 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,074 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,619 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,279 |
| Countries With No Rivers | 0 | - | 4.96 | 76,012 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,217 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,734 |
| North Sea Countries | 0 | - | 4.92 | 86,588 |
| Black Sea Countries | 0 | - | 4.87 | 60,330 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,011 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,094 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,944 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,034 |
| French Animal Words | 0 | - | 4.44 | 133,628 |
| Spanish Animal Words | 0 | - | 4.53 | 95,354 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,606 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,590 |
| Animals that Start with N | 0 | - | 3.73 | 31,346 |
| Horse Knowledge | 0 | - | 4.45 | 23,936 |
| Snake Knowledge | 0 | - | 4.49 | 18,722 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,766 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,151 |
| Elements by Picture | 0 | - | 4.28 | 69,525 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,303 |
| Countries with the Most Malaria Deaths | 0 | - | 4.47 | 44,844 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,350 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,330 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,207 |
| African Great Lakes | 0 | - | 4.82 | 65,100 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,673 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,874 |
| What Color is It - Multiple Choice | 0 | - | 4.47 | 43,742 |
| England or Wales? | 0 | - | 4.94 | 45,303 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,399 |
| Animals of Australia | 0 | - | 4.52 | 42,141 |
| Pack Animals | 0 | - | 4.23 | 10,330 |
| Lion Trivia | 0 | - | 4.19 | 16,365 |
| Countries with More Cows than People | 0 | - | 4.43 | 54,612 |
| Mammal Knowledge #1 | 0 | - | 4.20 | 19,594 |
| Mammal Knowledge #2 | 0 | - | 4.13 | 18,440 |
| Insect Knowledge #1 | 0 | - | 4.38 | 12,299 |
| Insect Knowledge #2 | 0 | - | 4.21 | 8,907 |
| Countries with Wild Lions | 0 | - | 4.77 | 25,963 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,086 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,503 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,252 |
| Elements Named for Countries | 0 | - | 4.52 | 24,372 |
| Albert Einstein Trivia | 0 | - | 4.58 | 18,308 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,148 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 118,297 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,453 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,069 |
| Least-Forested Countries | 0 | - | 4.53 | 64,883 |
| Tropical Rainforest Countries | 0 | - | 4.68 | 81,694 |
| Northernmost Countries Without Glaciers | 0 | - | 4.61 | 36,062 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,730 |
| Asian Physical Geography | 0 | - | 4.61 | 35,368 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,442 |
| Rivers and Lakes whose Names are Countries | 0 | - | 4.95 | 45,152 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,792 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,774 |
| Nile River Basin Countries on a Map | 0 | - | 4.95 | 50,201 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,741 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 114,715 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,062 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,167 |
| Flowers by Picture | 0 | - | 4.46 | 104,999 |
| NBA Basketball Multiple Choice | 0 | - | 4.04 | 34,844 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,557 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,135 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,018 |
| Canada Multiple Choice Quiz | 0 | - | 4.53 | 48,880 |
| Japan Multiple Choice | 0 | - | 4.48 | 40,523 |
| 1, 2, 3, or 4? | 0 | - | 4.28 | 69,714 |
| Animal Idioms Quiz #1 | 0 | - | 4.32 | 42,893 |
| Animal Idioms Quiz #2 | 0 | - | 4.33 | 43,459 |
| Primate Knowledge | 0 | - | 4.17 | 15,263 |
| Multiple Choice Animal Quiz #2 | 0 | - | 4.21 | 15,387 |
| Birds by Picture #2 | 0 | - | 4.33 | 35,929 |
| Birds by Picture #3 | 0 | - | 4.24 | 32,823 |
| Dog Knowledge | 0 | - | 4.46 | 34,169 |
| Fish Knowledge | 0 | - | 4.38 | 25,486 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,657 |
| The Diseases They Had | 0 | - | 4.15 | 13,882 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,098 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.61 | 37,671 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,426 |
