| Baby, Male and Female Animals | 0 | - | 4.43 | 150,350 |
| Animal Adjectives | 0 | - | 4.77 | 59,979 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,719 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,588 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,199 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,732 |
| Animals of Australia | 0 | - | 4.52 | 42,304 |
| Word Scramble - Random Animals | 0 | - | 4.41 | 49,157 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,492 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,574 |
| Birds in the Answer | 0 | - | 4.56 | 52,822 |
| North American Bird-Named Teams | 0 | - | 4.44 | 67,842 |
| Biggest Animals by Category | 0 | - | 4.18 | 73,120 |
| Word Scramble - Animals #1 | 0 | - | 4.36 | 137,999 |
| Animal Sounds | 0 | - | 4.26 | 191,616 |
| Word Scramble - Animals #2 | 0 | - | 4.39 | 52,410 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,358 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,386 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,077 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,106 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,196 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 119,185 |
| Metals of Antiquity | 0 | - | 4.95 | 93,377 |
| People with Animal Names #1 | 0 | - | 3.97 | 42,538 |
| Animal Idioms Quiz #1 | 0 | - | 4.32 | 43,026 |
| Animal Idioms Quiz #2 | 0 | - | 4.33 | 43,578 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,733 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,101 |
| Animal Group Names | 0 | - | 4.06 | 23,183 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,749 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,129 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,328 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,695 |
| Birds by Picture #3 | 0 | - | 4.24 | 33,146 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,452 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,699 |
| Bear in the Answers | 0 | - | 4.29 | 61,938 |
| Songs with Animals in the Title #1 | 0 | - | 4.36 | 129,317 |
| Animal Varieties #1 | 0 | - | 4.48 | 92,821 |
| A Whale of a Quiz | 0 | - | 4.41 | 36,068 |
| Animal Varieties #3 | 0 | - | 4.53 | 55,353 |
| Birds A-Z | 0 | - | 4.24 | 36,511 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,897 |
| Countries with the Most Sheep | 0 | - | 4.92 | 103,163 |
| Fish by Picture #2 | 0 | - | 4.06 | 18,554 |
| Fictional Birds by Picture | 0 | - | 4.29 | 26,080 |
| 3 and 4 Letter Birds | 0 | - | 4.25 | 23,788 |
| Horse Vocabulary | 0 | - | 4.23 | 22,726 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,600 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,489 |
| Countries with Glaciers | 0 | - | 4.97 | 105,365 |
| Big Cats | 0 | - | 3.91 | 67,780 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,737 |
| Animal Varieties #2 | 0 | - | 4.40 | 66,631 |
| Types of Bears | 0 | - | 4.51 | 143,430 |
| Deadly Animals | 0 | - | 4.03 | 110,228 |
| Famous Animals #1 | 0 | - | 4.03 | 239,601 |
| Famous Animals #2 | 0 | - | 4.02 | 57,490 |
| Famous Animals Quiz #3 | 0 | - | 4.24 | 43,300 |
| Animal Facts | 0 | - | 4.15 | 42,972 |
| People with Animal Names Quiz #2 | 0 | - | 3.77 | 26,977 |
| Largest Land Animals of Asia | 0 | - | 3.64 | 8,294 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,972 |
| Cat Knowledge | 0 | - | 4.48 | 25,795 |
| Bear Knowledge | 0 | - | 4.54 | 35,066 |
| Cow Knowledge | 0 | - | 4.46 | 24,242 |
| Elephant Knowledge | 0 | - | 4.41 | 23,951 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 56,160 |
| Human Taxonomy | 0 | - | 4.68 | 18,906 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,417 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 151,754 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,894 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,628 |
| Famous Cats | 0 | - | 4.08 | 18,033 |
| French Animal Words | 0 | - | 4.44 | 134,372 |
| Spanish Animal Words | 0 | - | 4.53 | 95,690 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,507 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,436 |
| Name that Bug | 0 | - | 4.12 | 45,545 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,943 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,850 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,660 |
| Bird in the Answers | 0 | - | 4.11 | 33,642 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,173 |
| Horse Knowledge | 0 | - | 4.46 | 24,044 |
| Snake Knowledge | 0 | - | 4.49 | 18,802 |
| Top 15 Countries with the Most Cows | 0 | - | 4.73 | 106,002 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,299 |
| Elements by Picture | 0 | - | 4.27 | 69,895 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,427 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,241 |
| African Great Lakes | 0 | - | 4.82 | 66,123 |
| Songs with Animals in the Title #2 | 0 | - | 3.90 | 27,964 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,552 |
| Pack Animals | 0 | - | 4.17 | 10,374 |
| Lion Trivia | 0 | - | 4.19 | 16,400 |
| Countries with More Cows than People | 0 | - | 4.45 | 61,250 |
| Mammal Knowledge #1 | 0 | - | 4.20 | 19,647 |
| Mammal Knowledge #2 | 0 | - | 4.13 | 18,493 |
| Insect Knowledge #1 | 0 | - | 4.38 | 12,372 |
| Insect Knowledge #2 | 0 | - | 4.22 | 8,959 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,286 |
| Animals that Start with L | 0 | - | 4.47 | 101,857 |
| Animals that Start with P | 0 | - | 4.45 | 86,087 |
| Animals that Start with S | 0 | - | 4.49 | 87,297 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,578 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,306 |
| Elements Named for Countries | 0 | - | 4.53 | 24,668 |
| Albert Einstein Trivia | 0 | - | 4.58 | 18,377 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,750 |
| Body Part Words | 0 | - | 4.43 | 145,904 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 176,273 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,552 |
| Human Body A-Z | 0 | - | 4.51 | 129,111 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 88,117 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,603 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,457 |
| Least-Forested Countries | 0 | - | 4.53 | 65,171 |
| Tropical Rainforest Countries | 0 | - | 4.69 | 82,025 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 36,141 |
| African Physical Geography | 0 | - | 4.51 | 31,675 |
| Asian Physical Geography | 0 | - | 4.60 | 35,501 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,715 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,133 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,393 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,077 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,327 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,358 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,409 |
| Fictional Animals #1 | 0 | - | 4.06 | 46,414 |
| Words that are Animals | 0 | - | 3.88 | 41,454 |
| Extinct Animals | 0 | - | 4.16 | 27,498 |
| Animals A-Z #2 | 0 | - | 4.12 | 66,351 |
| Primate Knowledge | 0 | - | 4.17 | 15,303 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,291 |
| Earliest Domestication of Animals | 0 | - | 4.34 | 28,256 |
| Dog Knowledge | 0 | - | 4.46 | 34,348 |
| Largest Types of Birds | 0 | - | 4.19 | 26,962 |
| Bird Knowledge #1 | 0 | - | 4.33 | 15,730 |
| Fish Knowledge | 0 | - | 4.38 | 25,634 |
| Animals that Start with A | 0 | - | 4.26 | 112,028 |
| Animals that Start with B | 0 | - | 4.31 | 113,718 |
| Animals that Start with C | 0 | - | 4.21 | 93,175 |
| Animals that Start with D | 0 | - | 4.25 | 86,926 |
| Animals that Start with E | 0 | - | 4.28 | 73,878 |
| Animals that Start with F | 0 | - | 4.28 | 107,065 |
| Animals that Start with G | 0 | - | 4.25 | 80,094 |
| Animals that Start with K | 0 | - | 4.07 | 66,527 |
| Animals that Start with M | 0 | - | 4.23 | 83,968 |
| Animals that Start with R | 0 | - | 4.27 | 87,350 |
| Animals that Start with T | 0 | - | 4.32 | 91,417 |
| Animals that Start with H | 0 | - | 4.31 | 86,293 |
| Animals that Start with O | 0 | - | 4.27 | 88,550 |
| Animals that Start with W | 0 | - | 4.36 | 47,133 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,981 |
| Most Common Body Part Words | 0 | - | 3.90 | 31,637 |
| The Diseases They Had | 0 | - | 4.15 | 13,997 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,148 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.61 | 37,791 |
| Geological Extremes | 0 | - | 4.34 | 40,014 |
| Landforms by Country | 0 | - | 4.52 | 51,966 |
| European Physical Geography | 0 | - | 4.26 | 33,490 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,056 |
| Rivers of the United States | 0 | - | 4.93 | 66,113 |
| Movies with Animals in the Title #1 | 0 | - | 4.20 | 183,623 |
| Movies with Animals in the Title #2 | 0 | - | 4.28 | 108,300 |
| Cartoon Catchphrases Quiz | 0 | - | 4.20 | 69,787 |
| Fictional Animals #2 | 0 | - | 3.97 | 36,337 |
| National Animals | 0 | - | 4.24 | 89,638 |
| Mammals in the Answer | 0 | - | 4.35 | 29,955 |
| Books with Animals in the Title #1 | 0 | - | 4.41 | 74,555 |
| Three Letter Animals Quiz | 0 | - | 3.96 | 300,886 |
| Word Puzzles - Animals #1 | 0 | - | 4.37 | 28,630 |
| Word Puzzles - Animals #2 | 0 | - | 4.20 | 24,853 |
| Animal Decoder | 0 | - | 4.06 | 15,523 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,259 |
| Most Popular Dog Breeds | 0 | - | 4.20 | 110,933 |
| The Shark Quiz!! | 0 | - | 4.25 | 24,717 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,803 |
| Animals that Start with N | 0 | - | 3.73 | 31,641 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,702 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 215,615 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 59,967 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,446 |
| Least Forested Countries in Asia | 0 | - | 4.74 | 64,676 |
| Oceania Physical Geography | 0 | - | 4.30 | 12,676 |
| Capitals by River | 0 | - | 4.55 | 48,299 |
| South China Sea Countries | 0 | - | 4.78 | 57,675 |
| Sayings About Animals #1 | 0 | - | 4.35 | 107,558 |
| Sayings About Animals #2 | 0 | - | 3.96 | 85,671 |
| Sayings About Animals #3 | 0 | - | 3.91 | 77,201 |
| Disney Animals | 0 | - | 4.27 | 239,674 |
| Books with Animals in the Title #2 | 0 | - | 4.23 | 18,047 |
| Sayings About Animals #4 | 0 | - | 4.21 | 42,045 |
| Three Letter Mammals Quiz | 0 | - | 3.69 | 11,881 |
| Four Letter Mammals Quiz | 0 | - | 3.83 | 12,553 |
| Brand-Name Animals | 0 | - | 4.16 | 74,476 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 206,103 |
| Dog in the Answers | 0 | - | 4.16 | 68,593 |
| Famous Dogs | 0 | - | 4.02 | 27,940 |
