| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,381 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,511 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 164,313 |
| Megadiverse Countries | 0 | - | 4.96 | 135,016 |
| Seas on the World Map | 0 | - | 4.96 | 135,541 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,074 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,654 |
| Seas of the World | 0 | - | 5.00 | 157,391 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,968 |
| World's Longest Rivers | 0 | - | 4.90 | 137,020 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,652 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,523 |
| Countries with the Most Sheep | 0 | - | 4.92 | 103,382 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,290 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,896 |
| North Sea Countries | 0 | - | 4.92 | 87,488 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,250 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 87,952 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,469 |
| Countries With No Rivers | 0 | - | 4.96 | 76,915 |
| Countries with Fjords | 0 | - | 4.94 | 101,043 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,183 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,299 |
| Black Sea Countries | 0 | - | 4.87 | 60,650 |
| South China Sea Countries | 0 | - | 4.78 | 57,753 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,802 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,276 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,816 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,547 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,630 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,454 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,057 |
| Mekong River Countries Empty Map Quiz | 0 | - | 4.80 | 53,319 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 56,573 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,562 |
| Disney Animals | 0 | - | 4.27 | 240,138 |
| Animals by Close-up Image | 0 | - | 4.42 | 218,550 |
| Animal Sounds | 0 | - | 4.26 | 191,814 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 206,346 |
| Movies with Animals in the Title #1 | 0 | - | 4.20 | 183,833 |
| Word Scramble - Animals #1 | 0 | - | 4.36 | 138,175 |
| Songs with Animals in the Title #1 | 0 | - | 4.36 | 129,467 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 150,683 |
| Types of Bears | 0 | - | 4.51 | 143,821 |
| French Animal Words | 0 | - | 4.44 | 134,631 |
| Flowers by Picture | 0 | - | 4.46 | 105,729 |
| Top 15 Countries with the Most Cows | 0 | - | 4.74 | 107,293 |
| Famous Rivers | 0 | - | 4.75 | 105,064 |
| Animals that Start with L | 0 | - | 4.47 | 102,248 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 96,912 |
| Animal Varieties #1 | 0 | - | 4.48 | 92,977 |
| Animals that Start with S | 0 | - | 4.49 | 87,504 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,737 |
| Bay of Bengal Countries With an Empty Map | 0 | - | 4.67 | 75,588 |
| Mammals by Picture #1 | 0 | - | 4.70 | 92,015 |
| Countries Closest to the Aegean Sea | 0 | - | 4.75 | 66,934 |
| Landforms by Country | 0 | - | 4.52 | 51,980 |
| Animal Varieties #3 | 0 | - | 4.54 | 55,460 |
| Animal Adjectives | 0 | - | 4.77 | 60,074 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 55,032 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,661 |
| Birds in the Answer | 0 | - | 4.56 | 52,875 |
| Great Lakes Quiz | 0 | - | 4.80 | 50,478 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,729 |
| U.S. States With Palm Trees | 0 | - | 4.52 | 45,831 |
| Rivers of the United States | 0 | - | 4.93 | 66,326 |
| Top Countries for Shark Attacks | 0 | - | 4.47 | 45,858 |
| U.S. States with More Cows than People | 0 | - | 4.74 | 47,805 |
| Animals of Australia | 0 | - | 4.52 | 42,367 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,934 |
| Most Populous River Basins | 0 | - | 4.55 | 39,748 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,389 |
| Major U.S. Rivers with State Names | 0 | - | 4.49 | 39,649 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,541 |
| Asian Physical Geography | 0 | - | 4.61 | 35,561 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,232 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,118 |
| Capitals by River | 0 | - | 4.55 | 48,344 |
| African Physical Geography | 0 | - | 4.51 | 31,742 |
| States and Provinces that Touch the Great Lakes | 0 | - | 4.54 | 28,912 |
| Earliest Domestication of Animals | 0 | - | 4.34 | 28,273 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,652 |
| African Great Lakes | 0 | - | 4.82 | 66,508 |
| City to River #1 | 0 | - | 4.59 | 35,864 |
| UK Rivers Map Quiz | 0 | - | 4.54 | 30,501 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 30,298 |
| Cow Knowledge | 0 | - | 4.46 | 24,279 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,256 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,258 |
| South American Physical Geography | 0 | - | 4.58 | 18,367 |
| Human Taxonomy | 0 | - | 4.68 | 18,929 |
| U.S States with the Most Cows | 0 | - | 4.63 | 29,863 |
| Largest Rivers by Discharge | 0 | - | 4.54 | 16,037 |
| City to River #2 - Difficult | 0 | - | 4.64 | 26,105 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,323 |
| U.S. States Bordering the Great Lakes | 0 | - | 4.55 | 18,271 |
| Three Letter Animals Quiz | 0 | - | 3.97 | 301,131 |
| Famous Animals #1 | 0 | - | 4.03 | 239,781 |
| Sayings About Animals #1 | 0 | - | 4.35 | 107,963 |
| Movies with Animals in the Title #2 | 0 | - | 4.28 | 108,621 |
| Animals that Start with A | 0 | - | 4.26 | 112,237 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,642 |
| Animals that Start with B | 0 | - | 4.31 | 113,950 |
| Animals that Start with F | 0 | - | 4.28 | 107,255 |
| Most Popular Dog Breeds in the U.S. | 0 | - | 4.15 | 113,293 |
| Animals that Start with C | 0 | - | 4.21 | 93,362 |
| Animals that Start with R | 0 | - | 4.28 | 87,530 |
| Animals that Start with T | 0 | - | 4.32 | 91,935 |
| Animals that Start with O | 0 | - | 4.27 | 88,696 |
| Seas of Europe | 0 | - | 4.37 | 84,720 |
| Animals that Start with H | 0 | - | 4.31 | 86,450 |
| Spanish Animal Words | 0 | - | 4.53 | 95,803 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,772 |
| Animals that Start with P | 0 | - | 4.45 | 86,301 |
| Animals that Start with D | 0 | - | 4.25 | 87,113 |
| National Animals | 0 | - | 4.24 | 89,765 |
| Animals that Start with M | 0 | - | 4.23 | 84,162 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.27 | 70,818 |
| Brand-Name Animals | 0 | - | 4.16 | 74,567 |
| Biggest Animals by Category | 0 | - | 4.18 | 73,194 |
| Animals that Start with G | 0 | - | 4.25 | 80,265 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,741 |
| Cartoon Catchphrases Quiz | 0 | - | 4.20 | 69,845 |
| Animals that Start with E | 0 | - | 4.28 | 74,039 |
| North American Bird-Named Teams | 0 | - | 4.44 | 67,917 |
| Books with Animals in the Title #1 | 0 | - | 4.41 | 74,631 |
| Animal Varieties #2 | 0 | - | 4.40 | 66,739 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,878 |
| Bodies of Water by Satellite Image #1 | 0 | - | 4.20 | 72,132 |
| Biggest City by River | 0 | - | 4.38 | 52,884 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,601 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 69,103 |
| Movies with Landforms in the Name | 0 | - | 4.16 | 50,476 |
| Word Scramble - Animals #2 | 0 | - | 4.39 | 52,499 |
| Trees in the Answer | 0 | - | 4.25 | 45,879 |
| Name that Bug | 0 | - | 4.12 | 45,587 |
| Top 10 U.S. States with the Longest Coastline | 0 | - | 4.45 | 50,858 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,616 |
| Top 10 African Countries by Coastline | 0 | - | 4.29 | 47,948 |
| Famous Animals Quiz #3 | 0 | - | 4.24 | 43,357 |
| Animal Idioms Quiz #2 | 0 | - | 4.33 | 43,647 |
| Animal Idioms Quiz #1 | 0 | - | 4.33 | 43,100 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 56,242 |
| Animal Facts | 0 | - | 4.15 | 43,007 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,558 |
| Animals that Start with W | 0 | - | 4.36 | 47,260 |
| Sayings About Animals #4 | 0 | - | 4.21 | 42,154 |
| Geological Extremes | 0 | - | 4.34 | 40,058 |
| Countries with More Cows than People | 0 | - | 4.45 | 61,445 |
| A Whale of a Quiz | 0 | - | 4.41 | 36,107 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,269 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,352 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,417 |
| Birds A-Z | 0 | - | 4.24 | 36,560 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,778 |
| European Physical Geography | 0 | - | 4.26 | 33,540 |
| Rivers A-Z | 0 | - | 4.35 | 32,797 |
| Word Scramble - Random Animals | 0 | - | 4.41 | 49,266 |
| Famous Pets | 0 | - | 3.98 | 30,462 |
| Streets with Tree Names | 0 | - | 4.19 | 28,957 |
| Mammals in the Answer | 0 | - | 4.35 | 29,974 |
| Dog Knowledge | 0 | - | 4.46 | 34,464 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,604 |
| U.S. States by Landform Quiz | 0 | - | 4.00 | 26,858 |
| Largest Types of Birds | 0 | - | 4.19 | 26,989 |
| Word Puzzles - Animals #1 | 0 | - | 4.37 | 28,676 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,671 |
| Landforms by Description Quiz | 0 | - | 4.33 | 26,025 |
| Extinct Animals | 0 | - | 4.16 | 27,526 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,329 |
| Cat Knowledge | 0 | - | 4.48 | 25,827 |
| Word Puzzles - Animals #2 | 0 | - | 4.20 | 24,885 |
| Elephant Knowledge | 0 | - | 4.41 | 23,980 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,734 |
| Rivers on Borders | 0 | - | 4.02 | 22,709 |
| The Shark Quiz!! | 0 | - | 4.25 | 24,759 |
| 3 and 4 Letter Birds | 0 | - | 4.25 | 23,826 |
| Famous Lakes Quiz | 0 | - | 4.52 | 24,029 |
| Rivers by City | 0 | - | 4.38 | 31,741 |
| Horse Vocabulary | 0 | - | 4.23 | 22,764 |
| Bear Knowledge | 0 | - | 4.54 | 35,112 |
| U.S. State Birds | 0 | - | 4.31 | 21,424 |
| Bird in the Answers | 0 | - | 4.11 | 33,800 |
| Mammal Knowledge #1 | 0 | - | 4.20 | 19,681 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,282 |
| Mammal Knowledge #2 | 0 | - | 4.13 | 18,520 |
| Dinosaur Trivia | 0 | - | 4.36 | 22,143 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,805 |
| Bodies of Water by Satellite Image #2 | 0 | - | 4.36 | 19,724 |
| Snake Knowledge | 0 | - | 4.49 | 18,832 |
| Lion Trivia | 0 | - | 4.19 | 16,412 |
| Horse Knowledge | 0 | - | 4.46 | 24,078 |
| 3 and 4 Letter Trees | 0 | - | 4.21 | 17,270 |
| Books with Animals in the Title #2 | 0 | - | 4.23 | 18,076 |
| Primate Knowledge | 0 | - | 4.17 | 15,318 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,749 |
| Bird Knowledge #1 | 0 | - | 4.33 | 15,750 |
| Lakes in the United States by Clue | 0 | - | 4.31 | 19,225 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,502 |
| Longest Rivers in the UK | 0 | - | 4.42 | 13,818 |
