| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,788 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,051 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 162,610 |
| Megadiverse Countries | 0 | - | 4.96 | 134,500 |
| Seas on the World Map | 0 | - | 4.96 | 134,650 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,808 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,822 |
| Seas of the World | 0 | - | 5.00 | 155,263 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,976 |
| World's Longest Rivers | 0 | - | 4.88 | 121,750 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,976 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.91 | 96,267 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,704 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,599 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,473 |
| North Sea Countries | 0 | - | 4.92 | 86,739 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,400 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 87,116 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,180 |
| Countries With No Rivers | 0 | - | 4.96 | 76,175 |
| Countries with Fjords | 0 | - | 4.93 | 100,410 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,910 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,660 |
| Black Sea Countries | 0 | - | 4.87 | 60,402 |
| South China Sea Countries | 0 | - | 4.78 | 57,576 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,391 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,013 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,561 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,206 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,080 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,117 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,733 |
| Mekong River Countries Empty Map Quiz | 0 | - | 4.80 | 53,093 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,832 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,289 |
| Disney Animals | 0 | - | 4.27 | 239,099 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,267 |
| Animal Sounds | 0 | - | 4.26 | 191,371 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 205,756 |
| Movies with Animals in the Title #1 | 0 | - | 4.21 | 183,206 |
| Word Scramble - Animals #1 | 0 | - | 4.36 | 137,800 |
| Songs with Animals in the Title #1 | 0 | - | 4.36 | 129,159 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 149,946 |
| Types of Bears | 0 | - | 4.51 | 143,193 |
| French Animal Words | 0 | - | 4.44 | 134,003 |
| Flowers by Picture | 0 | - | 4.46 | 105,111 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,845 |
| Famous Rivers | 0 | - | 4.74 | 104,667 |
| Animals that Start with L | 0 | - | 4.47 | 101,662 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 96,066 |
| Animal Varieties #1 | 0 | - | 4.48 | 92,585 |
| Animals that Start with S | 0 | - | 4.49 | 87,099 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,142 |
| Bay of Bengal Countries With an Empty Map | 0 | - | 4.64 | 75,317 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,381 |
| Countries Closest to the Aegean Sea | 0 | - | 4.75 | 66,721 |
| Landforms by Country | 0 | - | 4.52 | 51,934 |
| Animal Varieties #3 | 0 | - | 4.53 | 55,210 |
| Animal Adjectives | 0 | - | 4.77 | 59,905 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,751 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,562 |
| Birds in the Answer | 0 | - | 4.56 | 52,743 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,211 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,399 |
| U.S. States With Palm Trees | 0 | - | 4.52 | 45,685 |
| Rivers of the United States | 0 | - | 4.93 | 65,760 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,741 |
| U.S. States with More Cows than People | 0 | - | 4.74 | 46,818 |
| Animals of Australia | 0 | - | 4.52 | 42,220 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,709 |
| Most Populous River Basins | 0 | - | 4.55 | 39,593 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,193 |
| Major U.S. Rivers with State Names | 0 | - | 4.49 | 39,449 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,377 |
| Asian Physical Geography | 0 | - | 4.61 | 35,425 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,921 |
| 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 | 65,625 |
| 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 | 30,101 |
| Cow Knowledge | 0 | - | 4.46 | 24,201 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,172 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,193 |
| South American Physical Geography | 0 | - | 4.58 | 18,299 |
| Human Taxonomy | 0 | - | 4.68 | 18,886 |
| U.S States with the Most Cows | 0 | - | 4.63 | 29,648 |
| Largest Rivers by Discharge | 0 | - | 4.53 | 15,957 |
| City to River #2 - Difficult | 0 | - | 4.64 | 25,875 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,270 |
| U.S. States Bordering the Great Lakes | 0 | - | 4.54 | 18,209 |
| Three Letter Animals Quiz | 0 | - | 3.97 | 300,574 |
| Famous Animals #1 | 0 | - | 4.03 | 239,017 |
| Sayings About Animals #1 | 0 | - | 4.35 | 107,463 |
| Movies with Animals in the Title #2 | 0 | - | 4.28 | 108,119 |
| Animals that Start with A | 0 | - | 4.26 | 111,761 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,273 |
| Animals that Start with B | 0 | - | 4.31 | 113,463 |
| Animals that Start with F | 0 | - | 4.28 | 106,822 |
| Most Popular Dog Breeds | 0 | - | 4.19 | 110,721 |
| Animals that Start with C | 0 | - | 4.23 | 92,608 |
| Animals that Start with R | 0 | - | 4.27 | 87,181 |
| Animals that Start with T | 0 | - | 4.32 | 91,236 |
| Animals that Start with O | 0 | - | 4.27 | 88,400 |
| Seas of Europe | 0 | - | 4.37 | 84,455 |
| Animals that Start with H | 0 | - | 4.31 | 86,096 |
| Spanish Animal Words | 0 | - | 4.53 | 95,515 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,561 |
| Animals that Start with P | 0 | - | 4.45 | 85,912 |
| Animals that Start with D | 0 | - | 4.25 | 86,721 |
| National Animals | 0 | - | 4.24 | 89,254 |
| Animals that Start with M | 0 | - | 4.23 | 83,796 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,755 |
| Brand-Name Animals | 0 | - | 4.16 | 74,369 |
| Biggest Animals by Category | 0 | - | 4.18 | 73,018 |
| Animals that Start with G | 0 | - | 4.25 | 79,916 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,996 |
| Cartoon Catchphrases Quiz | 0 | - | 4.20 | 69,674 |
| Animals that Start with E | 0 | - | 4.28 | 73,683 |
| North American Bird-Named Teams | 0 | - | 4.43 | 67,722 |
| Books with Animals in the Title #1 | 0 | - | 4.41 | 74,432 |
| Animal Varieties #2 | 0 | - | 4.40 | 66,512 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,732 |
| Bodies of Water by Satellite Image #1 | 0 | - | 4.20 | 71,501 |
| Biggest City by River | 0 | - | 4.41 | 52,741 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,122 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,804 |
| Movies with Landforms in the Name | 0 | - | 4.16 | 50,339 |
| Word Scramble - Animals #2 | 0 | - | 4.39 | 52,316 |
| Trees in the Answer | 0 | - | 4.25 | 45,783 |
| Name that Bug | 0 | - | 4.12 | 45,492 |
| Top 10 U.S. States with the Longest Coastline | 0 | - | 4.45 | 50,746 |
| 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 | 43,195 |
| Animal Idioms Quiz #2 | 0 | - | 4.33 | 43,524 |
| Animal Idioms Quiz #1 | 0 | - | 4.32 | 42,965 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 56,051 |
| Animal Facts | 0 | - | 4.15 | 42,938 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,444 |
| Animals that Start with W | 0 | - | 4.36 | 47,007 |
| Sayings About Animals #4 | 0 | - | 4.21 | 41,983 |
| Geological Extremes | 0 | - | 4.34 | 39,973 |
| Countries with More Cows than People | 0 | - | 4.45 | 60,857 |
| A Whale of a Quiz | 0 | - | 4.41 | 36,021 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,904 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,027 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,288 |
| Birds A-Z | 0 | - | 4.24 | 36,432 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,406 |
| European Physical Geography | 0 | - | 4.26 | 33,414 |
| Rivers A-Z | 0 | - | 4.35 | 32,733 |
| Word Scramble - Random Animals | 0 | - | 4.41 | 48,999 |
| Famous Pets | 0 | - | 3.98 | 30,385 |
| Streets with Tree Names | 0 | - | 4.19 | 28,908 |
| Mammals in the Answer | 0 | - | 4.35 | 29,934 |
| Dog Knowledge | 0 | - | 4.46 | 34,248 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,393 |
| 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 | 28,553 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,508 |
| Landforms by Description Quiz | 0 | - | 4.33 | 25,992 |
| Extinct Animals | 0 | - | 4.19 | 27,446 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,040 |
| Cat Knowledge | 0 | - | 4.48 | 25,754 |
| Word Puzzles - Animals #2 | 0 | - | 4.20 | 24,803 |
| Elephant Knowledge | 0 | - | 4.41 | 23,921 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,588 |
| Rivers on Borders | 0 | - | 4.02 | 22,658 |
| The Shark Quiz!! | 0 | - | 4.25 | 24,659 |
| 3 and 4 Letter Birds | 0 | - | 4.25 | 23,750 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,948 |
| Rivers by City | 0 | - | 4.38 | 31,666 |
| Horse Vocabulary | 0 | - | 4.22 | 22,695 |
| Bear Knowledge | 0 | - | 4.54 | 35,019 |
| U.S. State Birds | 0 | - | 4.31 | 21,364 |
| Bird in the Answers | 0 | - | 4.10 | 33,399 |
| Mammal Knowledge #1 | 0 | - | 4.20 | 19,622 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,217 |
| Mammal Knowledge #2 | 0 | - | 4.13 | 18,471 |
| Dinosaur Trivia | 0 | - | 4.36 | 21,976 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,334 |
| Bodies of Water by Satellite Image #2 | 0 | - | 4.36 | 19,621 |
| Snake Knowledge | 0 | - | 4.49 | 18,760 |
| Lion Trivia | 0 | - | 4.19 | 16,382 |
| Horse Knowledge | 0 | - | 4.45 | 23,982 |
| 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 | 15,279 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,635 |
| Bird Knowledge #1 | 0 | - | 4.33 | 15,709 |
| Lakes in the United States by Clue | 0 | - | 4.31 | 19,195 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,123 |
| Longest Rivers in the UK | 0 | - | 4.42 | 13,752 |
