| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,772 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,050 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 162,571 |
| Megadiverse Countries | 0 | - | 4.96 | 134,497 |
| Seas on the World Map | 0 | - | 4.96 | 134,642 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,806 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,819 |
| Seas of the World | 0 | - | 5.00 | 155,231 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,970 |
| World's Longest Rivers | 0 | - | 4.88 | 121,740 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,968 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.91 | 96,265 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,695 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,594 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,470 |
| North Sea Countries | 0 | - | 4.92 | 86,736 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,390 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 87,109 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,177 |
| Countries With No Rivers | 0 | - | 4.96 | 76,171 |
| Countries with Fjords | 0 | - | 4.93 | 100,406 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,902 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,655 |
| Black Sea Countries | 0 | - | 4.87 | 60,399 |
| South China Sea Countries | 0 | - | 4.78 | 57,574 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,387 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,013 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,557 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,201 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,074 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,116 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,726 |
| Mekong River Countries Empty Map Quiz | 0 | - | 4.80 | 53,085 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,819 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,288 |
| Disney Animals | 0 | - | 4.27 | 239,079 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,253 |
| Animal Sounds | 0 | - | 4.26 | 191,362 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 205,749 |
| Movies with Animals in the Title #1 | 0 | - | 4.21 | 183,200 |
| Word Scramble - Animals #1 | 0 | - | 4.36 | 137,794 |
| Songs with Animals in the Title #1 | 0 | - | 4.36 | 129,159 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 149,935 |
| Types of Bears | 0 | - | 4.51 | 143,189 |
| French Animal Words | 0 | - | 4.44 | 133,996 |
| Flowers by Picture | 0 | - | 4.46 | 105,110 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,843 |
| Famous Rivers | 0 | - | 4.74 | 104,665 |
| Animals that Start with L | 0 | - | 4.47 | 101,654 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 96,060 |
| Animal Varieties #1 | 0 | - | 4.48 | 92,579 |
| Animals that Start with S | 0 | - | 4.49 | 87,096 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,137 |
| Bay of Bengal Countries With an Empty Map | 0 | - | 4.64 | 75,314 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,377 |
| Countries Closest to the Aegean Sea | 0 | - | 4.75 | 66,716 |
| Landforms by Country | 0 | - | 4.52 | 51,933 |
| Animal Varieties #3 | 0 | - | 4.53 | 55,208 |
| Animal Adjectives | 0 | - | 4.77 | 59,902 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,748 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,559 |
| Birds in the Answer | 0 | - | 4.56 | 52,741 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,206 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,396 |
| U.S. States With Palm Trees | 0 | - | 4.52 | 45,682 |
| Rivers of the United States | 0 | - | 4.93 | 65,752 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,739 |
| U.S. States with More Cows than People | 0 | - | 4.74 | 46,709 |
| Animals of Australia | 0 | - | 4.52 | 42,211 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,706 |
| Most Populous River Basins | 0 | - | 4.55 | 39,591 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,188 |
| Major U.S. Rivers with State Names | 0 | - | 4.49 | 39,449 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,374 |
| Asian Physical Geography | 0 | - | 4.61 | 35,424 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,914 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 35,961 |
| Capitals by River | 0 | - | 4.55 | 48,262 |
| African Physical Geography | 0 | - | 4.51 | 31,605 |
| States and Provinces that Touch the Great Lakes | 0 | - | 4.54 | 28,863 |
| Earliest Domestication of Animals | 0 | - | 4.34 | 28,225 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,512 |
| African Great Lakes | 0 | - | 4.82 | 65,604 |
| City to River #1 | 0 | - | 4.59 | 35,775 |
| UK Rivers Map Quiz | 0 | - | 4.54 | 30,297 |
| Gulfs and Bays on the World Map | 0 | - | 4.61 | 30,099 |
| Cow Knowledge | 0 | - | 4.46 | 24,201 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,172 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,192 |
| South American Physical Geography | 0 | - | 4.58 | 18,298 |
| Human Taxonomy | 0 | - | 4.68 | 18,885 |
| U.S States with the Most Cows | 0 | - | 4.63 | 29,648 |
| Largest Rivers by Discharge | 0 | - | 4.53 | 15,956 |
| City to River #2 - Difficult | 0 | - | 4.64 | 25,874 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,269 |
| U.S. States Bordering the Great Lakes | 0 | - | 4.54 | 18,208 |
| Three Letter Animals Quiz | 0 | - | 3.97 | 300,569 |
| Famous Animals #1 | 0 | - | 4.03 | 239,014 |
| Sayings About Animals #1 | 0 | - | 4.35 | 107,460 |
| Movies with Animals in the Title #2 | 0 | - | 4.28 | 108,116 |
| Animals that Start with A | 0 | - | 4.26 | 111,753 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,270 |
| Animals that Start with B | 0 | - | 4.31 | 113,458 |
| Animals that Start with F | 0 | - | 4.28 | 106,819 |
| Most Popular Dog Breeds | 0 | - | 4.19 | 110,714 |
| Animals that Start with C | 0 | - | 4.23 | 92,603 |
| Animals that Start with R | 0 | - | 4.27 | 87,179 |
| Animals that Start with T | 0 | - | 4.32 | 91,233 |
| Animals that Start with O | 0 | - | 4.27 | 88,398 |
| Seas of Europe | 0 | - | 4.37 | 84,452 |
| Animals that Start with H | 0 | - | 4.31 | 86,092 |
| Spanish Animal Words | 0 | - | 4.53 | 95,512 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,555 |
| Animals that Start with P | 0 | - | 4.45 | 85,906 |
| Animals that Start with D | 0 | - | 4.25 | 86,717 |
| National Animals | 0 | - | 4.24 | 89,247 |
| Animals that Start with M | 0 | - | 4.23 | 83,792 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,755 |
| Brand-Name Animals | 0 | - | 4.16 | 74,365 |
| Biggest Animals by Category | 0 | - | 4.18 | 73,014 |
| Animals that Start with G | 0 | - | 4.25 | 79,914 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,988 |
| Cartoon Catchphrases Quiz | 0 | - | 4.20 | 69,671 |
| Animals that Start with E | 0 | - | 4.28 | 73,677 |
| North American Bird-Named Teams | 0 | - | 4.43 | 67,718 |
| Books with Animals in the Title #1 | 0 | - | 4.41 | 74,427 |
| Animal Varieties #2 | 0 | - | 4.40 | 66,509 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,730 |
| Bodies of Water by Satellite Image #1 | 0 | - | 4.20 | 71,495 |
| Biggest City by River | 0 | - | 4.41 | 52,740 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,113 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,799 |
| Movies with Landforms in the Name | 0 | - | 4.16 | 50,339 |
| Word Scramble - Animals #2 | 0 | - | 4.39 | 52,311 |
| Trees in the Answer | 0 | - | 4.25 | 45,782 |
| Name that Bug | 0 | - | 4.12 | 45,492 |
| Top 10 U.S. States with the Longest Coastline | 0 | - | 4.45 | 50,742 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,529 |
| Top 10 African Countries by Coastline | 0 | - | 4.27 | 47,853 |
| Famous Animals Quiz #3 | 0 | - | 4.24 | 43,193 |
| Animal Idioms Quiz #2 | 0 | - | 4.33 | 43,522 |
| Animal Idioms Quiz #1 | 0 | - | 4.32 | 42,962 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 56,047 |
| Animal Facts | 0 | - | 4.15 | 42,936 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,444 |
| Animals that Start with W | 0 | - | 4.36 | 47,004 |
| Sayings About Animals #4 | 0 | - | 4.21 | 41,982 |
| Geological Extremes | 0 | - | 4.34 | 39,973 |
| Countries with More Cows than People | 0 | - | 4.45 | 60,845 |
| A Whale of a Quiz | 0 | - | 4.41 | 36,020 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,902 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,022 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,284 |
| Birds A-Z | 0 | - | 4.24 | 36,429 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,402 |
| European Physical Geography | 0 | - | 4.26 | 33,414 |
| Rivers A-Z | 0 | - | 4.35 | 32,732 |
| Word Scramble - Random Animals | 0 | - | 4.41 | 48,997 |
| Famous Pets | 0 | - | 3.98 | 30,385 |
| Streets with Tree Names | 0 | - | 4.19 | 28,908 |
| Mammals in the Answer | 0 | - | 4.35 | 29,932 |
| Dog Knowledge | 0 | - | 4.46 | 34,245 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,392 |
| U.S. States by Landform Quiz | 0 | - | 4.00 | 26,825 |
| Largest Types of Birds | 0 | - | 4.19 | 26,928 |
| Word Puzzles - Animals #1 | 0 | - | 4.37 | 28,552 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,506 |
| Landforms by Description Quiz | 0 | - | 4.33 | 25,992 |
| Extinct Animals | 0 | - | 4.19 | 27,446 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,038 |
| Cat Knowledge | 0 | - | 4.48 | 25,752 |
| Word Puzzles - Animals #2 | 0 | - | 4.20 | 24,801 |
| Elephant Knowledge | 0 | - | 4.41 | 23,920 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,585 |
| Rivers on Borders | 0 | - | 4.02 | 22,657 |
| The Shark Quiz!! | 0 | - | 4.25 | 24,657 |
| 3 and 4 Letter Birds | 0 | - | 4.25 | 23,750 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,946 |
| Rivers by City | 0 | - | 4.38 | 31,666 |
| Horse Vocabulary | 0 | - | 4.22 | 22,694 |
| Bear Knowledge | 0 | - | 4.54 | 35,018 |
| U.S. State Birds | 0 | - | 4.31 | 21,363 |
| Bird in the Answers | 0 | - | 4.10 | 33,395 |
| Mammal Knowledge #1 | 0 | - | 4.20 | 19,620 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,217 |
| Mammal Knowledge #2 | 0 | - | 4.13 | 18,468 |
| Dinosaur Trivia | 0 | - | 4.36 | 21,972 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,323 |
| Bodies of Water by Satellite Image #2 | 0 | - | 4.36 | 19,621 |
| Snake Knowledge | 0 | - | 4.49 | 18,760 |
| Lion Trivia | 0 | - | 4.19 | 16,381 |
| Horse Knowledge | 0 | - | 4.45 | 23,981 |
| 3 and 4 Letter Trees | 0 | - | 4.21 | 17,208 |
| Books with Animals in the Title #2 | 0 | - | 4.23 | 18,003 |
| Primate Knowledge | 0 | - | 4.17 | 15,278 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,633 |
| Bird Knowledge #1 | 0 | - | 4.33 | 15,708 |
| Lakes in the United States by Clue | 0 | - | 4.31 | 19,194 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,116 |
| Longest Rivers in the UK | 0 | - | 4.42 | 13,751 |
