| Fish... or Not a Fish? | 0 | - | 4.39 | 43,173 |
| Animals by Skeleton Image | 0 | - | 4.80 | 45,924 |
| Animals - Taxonomy to Common Name | 0 | - | 4.79 | 28,076 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,035 |
| Animal Anatomy Quiz | 0 | - | 4.38 | 59,611 |
| Baby, Male and Female Animals | 0 | - | 4.42 | 149,538 |
| Animal Adjectives | 0 | - | 4.77 | 59,807 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,494 |
| Animals: No Vowels #1 | 0 | - | 4.57 | 63,522 |
| Animals by Close-up Image | 0 | - | 4.42 | 216,488 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,188 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,882 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,036 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,371 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,342 |
| Name that Bug | 0 | - | 4.12 | 45,434 |
| Fish by Picture #2 | 0 | - | 4.08 | 18,379 |
| Bird in the Answers | 0 | - | 4.10 | 33,212 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,090 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,752 |
| Word Scramble - Random Animals | 0 | - | 4.41 | 48,863 |
| Animal Emojis | 0 | - | 4.69 | 83,220 |
| Birds in the Answer | 0 | - | 4.56 | 52,680 |
| North American Bird-Named Teams | 0 | - | 4.43 | 67,600 |
| Animals that Start with L | 0 | - | 4.47 | 101,198 |
| Animals that Start with P | 0 | - | 4.45 | 85,596 |
| Animals that Start with S | 0 | - | 4.49 | 86,762 |
| Biggest Animals by Category | 0 | - | 4.18 | 72,921 |
| Word Scramble - Animals #1 | 0 | - | 4.36 | 137,554 |
| Animal Sounds | 0 | - | 4.26 | 191,087 |
| Words that are Animals | 0 | - | 3.88 | 41,401 |
| Extinct Animals | 0 | - | 4.18 | 27,394 |
| Word Scramble - Animals #2 | 0 | - | 4.39 | 52,232 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,188 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,219 |
| Earliest Domestication of Animals | 0 | - | 4.33 | 28,206 |
| Animals in the News | 0 | - | 4.37 | 26,708 |
| Animals: No Vowels #2 | 0 | - | 4.57 | 21,389 |
| Animals A-Z by Picture | 0 | - | 4.08 | 65,843 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,727 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,868 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,808 |
| Largest Types of Birds | 0 | - | 4.19 | 26,883 |
| Bird Knowledge #1 | 0 | - | 4.33 | 15,676 |
| Metals of Antiquity | 0 | - | 4.94 | 92,814 |
| Megadiverse Countries | 0 | - | 4.97 | 133,837 |
| Fictional Animals #1 | 0 | - | 4.06 | 46,330 |
| Animals A-Z #2 | 0 | - | 4.11 | 66,019 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,660 |
| Animals that Start with A | 0 | - | 4.26 | 111,176 |
| Animals that Start with B | 0 | - | 4.31 | 112,662 |
| Animals that Start with C | 0 | - | 4.23 | 92,159 |
| Animals that Start with D | 0 | - | 4.25 | 86,089 |
| Animals that Start with E | 0 | - | 4.28 | 73,339 |
| Animals that Start with F | 0 | - | 4.28 | 106,468 |
| Animals that Start with G | 0 | - | 4.25 | 79,633 |
| Animals that Start with K | 0 | - | 4.06 | 66,153 |
| Animals that Start with M | 0 | - | 4.24 | 83,516 |
| Animals that Start with R | 0 | - | 4.27 | 86,584 |
| Animals that Start with T | 0 | - | 4.32 | 90,596 |
| Animals that Start with H | 0 | - | 4.31 | 85,834 |
| Animals that Start with O | 0 | - | 4.27 | 88,176 |
| Animals that Start with W | 0 | - | 4.35 | 46,800 |
| People with Animal Names #1 | 0 | - | 3.97 | 42,462 |
| Mammals in the Answer | 0 | - | 4.35 | 29,915 |
| Three Letter Animals Quiz | 0 | - | 3.97 | 300,261 |
| Word Puzzles - Animals #1 | 0 | - | 4.37 | 28,506 |
| Word Puzzles - Animals #2 | 0 | - | 4.20 | 24,754 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,544 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,266 |
| Animal Decoder | 0 | - | 4.06 | 15,454 |
| Animal Group Names | 0 | - | 4.06 | 23,092 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,189 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,684 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,368 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,579 |
| Birds A-Z | 0 | - | 4.24 | 36,324 |
| Bear in the Answers | 0 | - | 4.29 | 61,563 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,521 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,335 |
| Countries with Fjords | 0 | - | 4.93 | 100,153 |
| Animal Varieties Quiz #1 | 0 | - | 4.48 | 92,344 |
| Fictional Animals #2 | 0 | - | 3.97 | 36,285 |
| A Whale of a Quiz | 0 | - | 4.41 | 35,948 |
| Animal Varieties #3 | 0 | - | 4.53 | 55,054 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,339 |
| Animal Stereotypes | 0 | - | 4.48 | 36,708 |
| Fictional Birds by Picture | 0 | - | 4.29 | 25,854 |
| 3 and 4 Letter Birds | 0 | - | 4.25 | 23,706 |
| Turkey (The Bird) | 0 | - | 4.15 | 12,380 |
| Horse Vocabulary | 0 | - | 4.22 | 22,663 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,189 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,553 |
| Countries with Glaciers | 0 | - | 4.97 | 104,591 |
| Animal Varieties #2 | 0 | - | 4.40 | 66,379 |
| Types of Bears | 0 | - | 4.51 | 143,062 |
| Deadly Animals | 0 | - | 4.03 | 109,850 |
| Famous Animals #1 | 0 | - | 4.03 | 238,756 |
| Famous Animals #2 | 0 | - | 4.02 | 57,311 |
| Famous Animals Quiz #3 | 0 | - | 4.24 | 43,136 |
| Animal Facts | 0 | - | 4.15 | 42,902 |
| People with Animal Names Quiz #2 | 0 | - | 3.77 | 26,934 |
| Largest Land Animals of Asia | 0 | - | 3.62 | 8,251 |
| Countries with the Most Wolves | 0 | - | 4.92 | 106,964 |
| Three Letter Mammals Quiz | 0 | - | 3.69 | 11,826 |
| Four Letter Mammals Quiz | 0 | - | 3.83 | 12,500 |
| Cat Knowledge | 0 | - | 4.49 | 25,712 |
| Bear Knowledge | 0 | - | 4.54 | 34,974 |
| Cow Knowledge | 0 | - | 4.46 | 24,155 |
| Elephant Knowledge | 0 | - | 4.41 | 23,896 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 55,956 |
| Human Taxonomy | 0 | - | 4.68 | 18,826 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,418 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,459 |
| Body Parts in History and Culture | 0 | - | 4.42 | 34,994 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,551 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,258 |
| Countries With No Rivers | 0 | - | 4.96 | 75,986 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,173 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,725 |
| North Sea Countries | 0 | - | 4.92 | 86,568 |
| Black Sea Countries | 0 | - | 4.87 | 60,304 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 64,984 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,077 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,927 |
| French Animal Words | 0 | - | 4.44 | 133,575 |
| Spanish Animal Words | 0 | - | 4.53 | 95,330 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,592 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,582 |
| Animals that Start with N | 0 | - | 3.73 | 31,335 |
| Horse Knowledge | 0 | - | 4.45 | 23,928 |
| Snake Knowledge | 0 | - | 4.49 | 18,718 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,759 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,140 |
| Elements by Picture | 0 | - | 4.27 | 69,490 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,295 |
| Countries with the Most Malaria Deaths | 0 | - | 4.47 | 44,815 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,327 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,323 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,187 |
| African Great Lakes | 0 | - | 4.82 | 65,046 |
| Rivers and Lakes whose Names are Countries | 0 | - | 4.95 | 45,131 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,750 |
| Nile River Basin Countries on a Map | 0 | - | 4.95 | 50,170 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,726 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,043 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,630 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,839 |
| Animals of Australia | 0 | - | 4.52 | 42,137 |
| Pack Animals | 0 | - | 4.23 | 10,330 |
| Lion Trivia | 0 | - | 4.19 | 16,362 |
| Countries with More Cows than People | 0 | - | 4.43 | 54,590 |
| Mammal Knowledge #1 | 0 | - | 4.20 | 19,589 |
| Mammal Knowledge #2 | 0 | - | 4.13 | 18,435 |
| Insect Knowledge #1 | 0 | - | 4.38 | 12,294 |
| Insect Knowledge #2 | 0 | - | 4.21 | 8,904 |
| Countries with Wild Lions | 0 | - | 4.77 | 25,940 |
| Birds by Picture #1 | 0 | - | 4.46 | 41,051 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,502 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,249 |
| Elements Named for Countries | 0 | - | 4.52 | 24,348 |
| Albert Einstein Trivia | 0 | - | 4.57 | 18,304 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,099 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 118,041 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,443 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,043 |
| Least-Forested Countries | 0 | - | 4.53 | 64,868 |
| Tropical Rainforest Countries | 0 | - | 4.68 | 81,673 |
| Northernmost Countries Without Glaciers | 0 | - | 4.61 | 36,058 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,725 |
| Asian Physical Geography | 0 | - | 4.61 | 35,361 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,422 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,768 |
| Rivers of the United States | 0 | - | 4.93 | 65,430 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 114,652 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,020 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,122 |
| Flowers by Picture | 0 | - | 4.46 | 104,984 |
| Animal Idioms Quiz #1 | 0 | - | 4.32 | 42,886 |
| Animal Idioms Quiz #2 | 0 | - | 4.33 | 43,453 |
| Books with Animals in the Title #1 | 0 | - | 4.41 | 74,198 |
| Primate Knowledge | 0 | - | 4.17 | 15,259 |
| Multiple Choice Animal Quiz #2 | 0 | - | 4.21 | 15,382 |
| Birds by Picture #2 | 0 | - | 4.33 | 35,904 |
| Birds by Picture #3 | 0 | - | 4.24 | 32,801 |
| Dog Knowledge | 0 | - | 4.46 | 34,150 |
| Fish Knowledge | 0 | - | 4.38 | 25,475 |
| The Shark Quiz!! | 0 | - | 4.25 | 24,590 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,637 |
| The Diseases They Had | 0 | - | 4.15 | 13,875 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,093 |
| Least Forested Countries in Asia | 0 | - | 4.74 | 64,385 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.61 | 37,654 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,413 |
| Geological Extremes | 0 | - | 4.34 | 39,922 |
| Landforms by Country | 0 | - | 4.52 | 51,909 |
| African Physical Geography | 0 | - | 4.51 | 31,557 |
| European Physical Geography | 0 | - | 4.26 | 33,365 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 35,876 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,295 |
