| Fish... or Not a Fish? | 0 | - | 4.39 | 43,238 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,050 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,695 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 149,737 |
| Animal Adjectives | 0 | - | 4.77 | 59,855 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,532 |
| Animals: No Vowels #1 | 0 | - | 4.57 | 63,651 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,000 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,302 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,965 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,199 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,408 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,365 |
| Name that Bug | 0 | - | 4.12 | 45,462 |
| Bird in the Answers | 0 | - | 4.10 | 33,313 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,114 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,872 |
| Word Scramble - Random Animals | 0 | - | 4.41 | 48,931 |
| Animal Emojis | 0 | - | 4.70 | 83,410 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,150 |
| Birds in the Answer | 0 | - | 4.56 | 52,709 |
| North American Bird-Named Teams | 0 | - | 4.43 | 67,644 |
| Animals that Start with L | 0 | - | 4.47 | 101,540 |
| Animals that Start with P | 0 | - | 4.45 | 85,767 |
| Animals that Start with S | 0 | - | 4.49 | 86,959 |
| Biggest Animals by Category | 0 | - | 4.18 | 72,967 |
| Word Scramble - Animals #1 | 0 | - | 4.36 | 137,672 |
| Animal Sounds | 0 | - | 4.26 | 191,240 |
| Word Scramble - Animals #2 | 0 | - | 4.39 | 52,270 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,235 |
| Animals: No Vowels #2 | 0 | - | 4.57 | 21,598 |
| Animals A-Z by Picture | 0 | - | 4.08 | 65,984 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,811 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,937 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,919 |
| Words that are Animals | 0 | - | 3.88 | 41,423 |
| Extinct Animals | 0 | - | 4.18 | 27,421 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,240 |
| Earliest Domestication of Animals | 0 | - | 4.33 | 28,217 |
| Animals in the News | 0 | - | 4.37 | 26,727 |
| Largest Types of Birds | 0 | - | 4.19 | 26,906 |
| Bird Knowledge #1 | 0 | - | 4.33 | 15,692 |
| Metals of Antiquity | 0 | - | 4.94 | 92,983 |
| Megadiverse Countries | 0 | - | 4.97 | 133,967 |
| People with Animal Names #1 | 0 | - | 3.97 | 42,480 |
| Fictional Animals #1 | 0 | - | 4.06 | 46,360 |
| Mammals in the Answer | 0 | - | 4.35 | 29,922 |
| Three Letter Animals Quiz | 0 | - | 3.97 | 300,420 |
| Animals A-Z #2 | 0 | - | 4.12 | 66,088 |
| Word Puzzles - Animals #1 | 0 | - | 4.37 | 28,536 |
| Word Puzzles - Animals #2 | 0 | - | 4.20 | 24,776 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,680 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,359 |
| Animal Decoder | 0 | - | 4.06 | 15,472 |
| Animal Group Names | 0 | - | 4.06 | 23,113 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,204 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,701 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,466 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,611 |
| Animals that Start with A | 0 | - | 4.26 | 111,625 |
| Animals that Start with B | 0 | - | 4.31 | 113,318 |
| Animals that Start with C | 0 | - | 4.23 | 92,473 |
| Animals that Start with D | 0 | - | 4.25 | 86,605 |
| Animals that Start with E | 0 | - | 4.28 | 73,576 |
| Animals that Start with F | 0 | - | 4.28 | 106,698 |
| Animals that Start with G | 0 | - | 4.25 | 79,833 |
| Animals that Start with K | 0 | - | 4.07 | 66,314 |
| Animals that Start with M | 0 | - | 4.23 | 83,689 |
| Animals that Start with R | 0 | - | 4.27 | 87,078 |
| Animals that Start with T | 0 | - | 4.32 | 90,754 |
| Animals that Start with H | 0 | - | 4.31 | 85,997 |
| Animals that Start with O | 0 | - | 4.27 | 88,316 |
| Animals that Start with W | 0 | - | 4.36 | 46,934 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,559 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,411 |
| Countries with Fjords | 0 | - | 4.93 | 100,269 |
| Animal Varieties #1 | 0 | - | 4.48 | 92,461 |
| A Whale of a Quiz | 0 | - | 4.41 | 35,978 |
| Animal Varieties #3 | 0 | - | 4.53 | 55,130 |
| Animal Stereotypes | 0 | - | 4.48 | 36,843 |
| Birds A-Z | 0 | - | 4.24 | 36,380 |
| Bear in the Answers | 0 | - | 4.29 | 61,644 |
| Fictional Animals #2 | 0 | - | 3.97 | 36,299 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,490 |
| Fish by Picture #2 | 0 | - | 4.08 | 18,425 |
| Fictional Birds by Picture | 0 | - | 4.29 | 25,907 |
| 3 and 4 Letter Birds | 0 | - | 4.25 | 23,722 |
| Turkey (The Bird) | 0 | - | 4.15 | 12,384 |
| Horse Vocabulary | 0 | - | 4.22 | 22,678 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,285 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,702 |
| Countries with Glaciers | 0 | - | 4.97 | 104,720 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,079 |
| Australia True or False | 0 | - | 4.87 | 56,551 |
| Animal Varieties #2 | 0 | - | 4.40 | 66,438 |
| Types of Bears | 0 | - | 4.51 | 143,133 |
| Deadly Animals | 0 | - | 4.03 | 109,934 |
| Famous Animals #1 | 0 | - | 4.03 | 238,880 |
| Famous Animals #2 | 0 | - | 4.02 | 57,337 |
| Famous Animals Quiz #3 | 0 | - | 4.24 | 43,157 |
| Animal Facts | 0 | - | 4.15 | 42,915 |
| People with Animal Names Quiz #2 | 0 | - | 3.77 | 26,947 |
| Largest Land Animals of Asia | 0 | - | 3.62 | 8,262 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,105 |
| Three Letter Mammals Quiz | 0 | - | 3.69 | 11,839 |
| Four Letter Mammals Quiz | 0 | - | 3.83 | 12,516 |
| Cat Knowledge | 0 | - | 4.49 | 25,728 |
| Bear Knowledge | 0 | - | 4.54 | 34,998 |
| Cow Knowledge | 0 | - | 4.46 | 24,175 |
| Elephant Knowledge | 0 | - | 4.41 | 23,909 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 56,003 |
| Human Taxonomy | 0 | - | 4.68 | 18,858 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,564 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,497 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,152 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,691 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,332 |
| Countries With No Rivers | 0 | - | 4.96 | 76,081 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,320 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,769 |
| North Sea Countries | 0 | - | 4.92 | 86,660 |
| Black Sea Countries | 0 | - | 4.87 | 60,365 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,055 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,147 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,977 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,126 |
| French Animal Words | 0 | - | 4.44 | 133,826 |
| Spanish Animal Words | 0 | - | 4.53 | 95,419 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,664 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,638 |
| Animals that Start with N | 0 | - | 3.73 | 31,466 |
| Horse Knowledge | 0 | - | 4.45 | 23,955 |
| Snake Knowledge | 0 | - | 4.49 | 18,742 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,795 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,174 |
| Elements by Picture | 0 | - | 4.28 | 69,610 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,336 |
| Countries with the Most Malaria Deaths | 0 | - | 4.47 | 44,935 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,399 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,349 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,289 |
| African Great Lakes | 0 | - | 4.82 | 65,310 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,823 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,976 |
| What Color is It - Multiple Choice | 0 | - | 4.47 | 43,792 |
| England or Wales? | 0 | - | 4.94 | 45,382 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,603 |
| Animals of Australia | 0 | - | 4.52 | 42,179 |
| Pack Animals | 0 | - | 4.23 | 10,337 |
| Lion Trivia | 0 | - | 4.19 | 16,373 |
| Countries with More Cows than People | 0 | - | 4.43 | 55,404 |
| Mammal Knowledge #1 | 0 | - | 4.20 | 19,610 |
| Mammal Knowledge #2 | 0 | - | 4.13 | 18,458 |
| Insect Knowledge #1 | 0 | - | 4.38 | 12,308 |
| Insect Knowledge #2 | 0 | - | 4.21 | 8,918 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,022 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,195 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,509 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,260 |
| Elements Named for Countries | 0 | - | 4.52 | 24,439 |
| Albert Einstein Trivia | 0 | - | 4.58 | 18,324 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,279 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 118,596 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,480 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,141 |
| Least-Forested Countries | 0 | - | 4.53 | 64,935 |
| Tropical Rainforest Countries | 0 | - | 4.68 | 81,766 |
| Northernmost Countries Without Glaciers | 0 | - | 4.61 | 36,084 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,739 |
| Asian Physical Geography | 0 | - | 4.61 | 35,386 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,489 |
| Rivers and Lakes whose Names are Countries | 0 | - | 4.95 | 45,201 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,843 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,910 |
| Nile River Basin Countries on a Map | 0 | - | 4.95 | 50,276 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,791 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 114,872 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,105 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,273 |
| Flowers by Picture | 0 | - | 4.46 | 105,047 |
| NBA Basketball Multiple Choice | 0 | - | 4.04 | 34,925 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,593 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,254 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,125 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 48,956 |
| Japan Multiple Choice | 0 | - | 4.48 | 40,552 |
| 1, 2, 3, or 4? | 0 | - | 4.28 | 69,775 |
| Animal Idioms Quiz #1 | 0 | - | 4.32 | 42,918 |
| Animal Idioms Quiz #2 | 0 | - | 4.33 | 43,483 |
| Primate Knowledge | 0 | - | 4.17 | 15,272 |
| Multiple Choice Animal Quiz #2 | 0 | - | 4.21 | 15,399 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,005 |
| Birds by Picture #3 | 0 | - | 4.24 | 32,902 |
| Dog Knowledge | 0 | - | 4.46 | 34,202 |
| Fish Knowledge | 0 | - | 4.38 | 25,507 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,714 |
| The Diseases They Had | 0 | - | 4.15 | 13,908 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,117 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.62 | 37,698 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,464 |
