| Fish... or Not a Fish? | 0 | - | 4.39 | 43,174 |
| Animals by Skeleton Image | 0 | - | 4.80 | 45,926 |
| Animal Anatomy Quiz | 0 | - | 4.38 | 59,614 |
| Baby, Male and Female Animals | 0 | - | 4.42 | 149,550 |
| Animal Adjectives | 0 | - | 4.77 | 59,811 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,495 |
| Animals: No Vowels #1 | 0 | - | 4.57 | 63,530 |
| Animals by Close-up Image | 0 | - | 4.42 | 216,500 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,189 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,884 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,047 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,372 |
| Words Containing Animals #2 | 0 | - | 4.07 | 34,343 |
| Name that Bug | 0 | - | 4.12 | 45,438 |
| Bird in the Answers | 0 | - | 4.10 | 33,218 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,090 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,760 |
| Word Scramble - Random Animals | 0 | - | 4.41 | 48,870 |
| Animal Emojis | 0 | - | 4.69 | 83,237 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,039 |
| Birds in the Answer | 0 | - | 4.56 | 52,682 |
| North American Bird-Named Teams | 0 | - | 4.43 | 67,601 |
| Animals that Start with L | 0 | - | 4.47 | 101,203 |
| Animals that Start with P | 0 | - | 4.45 | 85,601 |
| Animals that Start with S | 0 | - | 4.49 | 86,768 |
| Biggest Animals by Category | 0 | - | 4.18 | 72,923 |
| Word Scramble - Animals #1 | 0 | - | 4.36 | 137,569 |
| Animal Sounds | 0 | - | 4.26 | 191,093 |
| Word Scramble - Animals #2 | 0 | - | 4.39 | 52,234 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,193 |
| Animals: No Vowels #2 | 0 | - | 4.57 | 21,400 |
| Animals A-Z by Picture | 0 | - | 4.08 | 65,846 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,731 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,871 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,811 |
| Words that are Animals | 0 | - | 3.88 | 41,402 |
| Extinct Animals | 0 | - | 4.18 | 27,395 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,220 |
| Earliest Domestication of Animals | 0 | - | 4.33 | 28,206 |
| Animals in the News | 0 | - | 4.37 | 26,709 |
| Largest Types of Birds | 0 | - | 4.19 | 26,884 |
| Bird Knowledge #1 | 0 | - | 4.33 | 15,676 |
| Metals of Antiquity | 0 | - | 4.94 | 92,822 |
| Megadiverse Countries | 0 | - | 4.97 | 133,841 |
| People with Animal Names #1 | 0 | - | 3.97 | 42,463 |
| Fictional Animals #1 | 0 | - | 4.06 | 46,330 |
| Mammals in the Answer | 0 | - | 4.35 | 29,915 |
| Three Letter Animals Quiz | 0 | - | 3.97 | 300,267 |
| Animals A-Z #2 | 0 | - | 4.11 | 66,020 |
| Word Puzzles - Animals #1 | 0 | - | 4.37 | 28,510 |
| Word Puzzles - Animals #2 | 0 | - | 4.20 | 24,755 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,548 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,270 |
| Animal Decoder | 0 | - | 4.06 | 15,456 |
| Animal Group Names | 0 | - | 4.06 | 23,093 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,190 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,684 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,373 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,579 |
| Animals that Start with A | 0 | - | 4.26 | 111,180 |
| Animals that Start with B | 0 | - | 4.31 | 112,668 |
| Animals that Start with C | 0 | - | 4.23 | 92,166 |
| Animals that Start with D | 0 | - | 4.25 | 86,095 |
| Animals that Start with E | 0 | - | 4.28 | 73,344 |
| Animals that Start with F | 0 | - | 4.28 | 106,473 |
| Animals that Start with G | 0 | - | 4.25 | 79,635 |
| Animals that Start with K | 0 | - | 4.06 | 66,155 |
| Animals that Start with M | 0 | - | 4.24 | 83,518 |
| Animals that Start with R | 0 | - | 4.27 | 86,587 |
| Animals that Start with T | 0 | - | 4.32 | 90,603 |
| Animals that Start with H | 0 | - | 4.31 | 85,837 |
| Animals that Start with O | 0 | - | 4.27 | 88,180 |
| Animals that Start with W | 0 | - | 4.35 | 46,805 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,523 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,341 |
| Countries with Fjords | 0 | - | 4.93 | 100,160 |
| Animal Varieties Quiz #1 | 0 | - | 4.48 | 92,351 |
| A Whale of a Quiz | 0 | - | 4.41 | 35,953 |
| Animal Varieties #3 | 0 | - | 4.53 | 55,059 |
| Animal Stereotypes | 0 | - | 4.48 | 36,713 |
| Birds A-Z | 0 | - | 4.24 | 36,326 |
| Bear in the Answers | 0 | - | 4.29 | 61,568 |
| Fictional Animals #2 | 0 | - | 3.97 | 36,287 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,342 |
| Fish by Picture #2 | 0 | - | 4.08 | 18,381 |
| Fictional Birds by Picture | 0 | - | 4.29 | 25,855 |
| 3 and 4 Letter Birds | 0 | - | 4.25 | 23,708 |
| Turkey (The Bird) | 0 | - | 4.15 | 12,381 |
| Horse Vocabulary | 0 | - | 4.22 | 22,663 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,195 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,561 |
| Countries with Glaciers | 0 | - | 4.97 | 104,604 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,018 |
| Australia True or False | 0 | - | 4.87 | 56,471 |
| Animal Varieties #2 | 0 | - | 4.40 | 66,383 |
| Types of Bears | 0 | - | 4.51 | 143,062 |
| Deadly Animals | 0 | - | 4.03 | 109,853 |
| Famous Animals #1 | 0 | - | 4.03 | 238,763 |
| Famous Animals #2 | 0 | - | 4.02 | 57,314 |
| Famous Animals Quiz #3 | 0 | - | 4.24 | 43,138 |
| Animal Facts | 0 | - | 4.15 | 42,902 |
| People with Animal Names Quiz #2 | 0 | - | 3.77 | 26,935 |
| Largest Land Animals of Asia | 0 | - | 3.62 | 8,252 |
| Countries with the Most Wolves | 0 | - | 4.92 | 106,967 |
| Three Letter Mammals Quiz | 0 | - | 3.69 | 11,826 |
| Four Letter Mammals Quiz | 0 | - | 3.83 | 12,502 |
| Cat Knowledge | 0 | - | 4.49 | 25,712 |
| Bear Knowledge | 0 | - | 4.54 | 34,974 |
| Cow Knowledge | 0 | - | 4.46 | 24,157 |
| Elephant Knowledge | 0 | - | 4.41 | 23,896 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 55,959 |
| Human Taxonomy | 0 | - | 4.68 | 18,827 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,429 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,462 |
| Body Parts in History and Culture | 0 | - | 4.42 | 34,995 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,563 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,263 |
| Countries With No Rivers | 0 | - | 4.96 | 75,993 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,182 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,726 |
| North Sea Countries | 0 | - | 4.92 | 86,574 |
| Black Sea Countries | 0 | - | 4.87 | 60,311 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 64,986 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,083 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,929 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,019 |
| French Animal Words | 0 | - | 4.44 | 133,589 |
| Spanish Animal Words | 0 | - | 4.53 | 95,335 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,594 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,582 |
| Animals that Start with N | 0 | - | 3.73 | 31,338 |
| Horse Knowledge | 0 | - | 4.45 | 23,930 |
| Snake Knowledge | 0 | - | 4.49 | 18,718 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,760 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,143 |
| Elements by Picture | 0 | - | 4.27 | 69,495 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,296 |
| Countries with the Most Malaria Deaths | 0 | - | 4.47 | 44,824 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,333 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,323 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,193 |
| African Great Lakes | 0 | - | 4.82 | 65,060 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,638 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,844 |
| What Color is It - Multiple Choice | 0 | - | 4.47 | 43,729 |
| England or Wales? | 0 | - | 4.94 | 45,285 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,339 |
| 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 | 54,596 |
| Mammal Knowledge #1 | 0 | - | 4.20 | 19,590 |
| Mammal Knowledge #2 | 0 | - | 4.13 | 18,436 |
| Insect Knowledge #1 | 0 | - | 4.38 | 12,295 |
| Insect Knowledge #2 | 0 | - | 4.21 | 8,904 |
| Countries with Wild Lions | 0 | - | 4.77 | 25,944 |
| Birds by Picture #1 | 0 | - | 4.46 | 41,057 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,503 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,251 |
| Elements Named for Countries | 0 | - | 4.52 | 24,353 |
| Albert Einstein Trivia | 0 | - | 4.57 | 18,305 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,108 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 118,058 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,444 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,047 |
| Least-Forested Countries | 0 | - | 4.53 | 64,873 |
| Tropical Rainforest Countries | 0 | - | 4.68 | 81,675 |
| Northernmost Countries Without Glaciers | 0 | - | 4.61 | 36,058 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,726 |
| Asian Physical Geography | 0 | - | 4.61 | 35,362 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,428 |
| Rivers and Lakes whose Names are Countries | 0 | - | 4.95 | 45,135 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,776 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,753 |
| Nile River Basin Countries on a Map | 0 | - | 4.95 | 50,178 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,727 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 114,658 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,046 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,139 |
| Flowers by Picture | 0 | - | 4.46 | 104,987 |
| NBA Basketball Multiple Choice | 0 | - | 4.04 | 34,816 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,549 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,104 |
| Which Country Does Not Border... | 0 | - | 4.78 | 92,984 |
| Canada Multiple Choice Quiz | 0 | - | 4.53 | 48,858 |
| Japan Multiple Choice | 0 | - | 4.48 | 40,510 |
| 1, 2, 3, or 4? | 0 | - | 4.28 | 69,702 |
| Animal Idioms Quiz #1 | 0 | - | 4.32 | 42,886 |
| Animal Idioms Quiz #2 | 0 | - | 4.33 | 43,454 |
| Primate Knowledge | 0 | - | 4.17 | 15,261 |
| Multiple Choice Animal Quiz #2 | 0 | - | 4.21 | 15,383 |
| Birds by Picture #2 | 0 | - | 4.33 | 35,907 |
| Birds by Picture #3 | 0 | - | 4.24 | 32,803 |
| Dog Knowledge | 0 | - | 4.46 | 34,156 |
| Fish Knowledge | 0 | - | 4.38 | 25,479 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,642 |
| The Diseases They Had | 0 | - | 4.15 | 13,877 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,094 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.61 | 37,655 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,415 |
