| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,800 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,055 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 162,623 |
| Megadiverse Countries | 0 | - | 4.96 | 134,506 |
| Seas on the World Map | 0 | - | 4.96 | 134,657 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,809 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,824 |
| Seas of the World | 0 | - | 5.00 | 155,274 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,983 |
| World's Longest Rivers | 0 | - | 4.88 | 121,760 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,981 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.91 | 96,274 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,711 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,602 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,475 |
| North Sea Countries | 0 | - | 4.92 | 86,742 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,407 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 87,126 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,180 |
| Countries With No Rivers | 0 | - | 4.96 | 76,181 |
| Countries with Fjords | 0 | - | 4.93 | 100,415 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,913 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,665 |
| Black Sea Countries | 0 | - | 4.87 | 60,403 |
| South China Sea Countries | 0 | - | 4.78 | 57,579 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,394 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,014 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,567 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,210 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,083 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,121 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,737 |
| Mekong River Countries Empty Map Quiz | 0 | - | 4.80 | 53,094 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,834 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,291 |
| Disney Animals | 0 | - | 4.27 | 239,118 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,278 |
| Animal Sounds | 0 | - | 4.26 | 191,375 |
| Dog Breed Picture Quiz | 0 | - | 4.34 | 205,770 |
| Movies with Animals in the Title #1 | 0 | - | 4.21 | 183,210 |
| Word Scramble - Animals #1 | 0 | - | 4.36 | 137,808 |
| Songs with Animals in the Title #1 | 0 | - | 4.36 | 129,165 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 149,956 |
| Types of Bears | 0 | - | 4.51 | 143,195 |
| French Animal Words | 0 | - | 4.44 | 134,008 |
| Flowers by Picture | 0 | - | 4.46 | 105,114 |
| 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 | 101,667 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 96,070 |
| Animal Varieties #1 | 0 | - | 4.48 | 92,593 |
| Animals that Start with S | 0 | - | 4.49 | 87,103 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,144 |
| Bay of Bengal Countries With an Empty Map | 0 | - | 4.64 | 75,318 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,397 |
| Countries Closest to the Aegean Sea | 0 | - | 4.75 | 66,722 |
| Landforms by Country | 0 | - | 4.52 | 51,934 |
| Animal Varieties #3 | 0 | - | 4.53 | 55,220 |
| Animal Adjectives | 0 | - | 4.77 | 59,907 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,753 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,564 |
| Birds in the Answer | 0 | - | 4.56 | 52,744 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,214 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,402 |
| U.S. States With Palm Trees | 0 | - | 4.52 | 45,689 |
| Rivers of the United States | 0 | - | 4.93 | 65,764 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,742 |
| U.S. States with More Cows than People | 0 | - | 4.74 | 46,927 |
| Animals of Australia | 0 | - | 4.52 | 42,220 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,712 |
| Most Populous River Basins | 0 | - | 4.55 | 39,593 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,195 |
| Major U.S. Rivers with State Names | 0 | - | 4.49 | 39,451 |
| 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 | 38,924 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 35,969 |
| Capitals by River | 0 | - | 4.55 | 48,262 |
| African Physical Geography | 0 | - | 4.51 | 31,606 |
| 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 | 65,639 |
| City to River #1 | 0 | - | 4.59 | 35,776 |
| UK Rivers Map Quiz | 0 | - | 4.54 | 30,301 |
| Gulfs and Bays on the World Map | 0 | - | 4.61 | 30,103 |
| Cow Knowledge | 0 | - | 4.46 | 24,203 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,175 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,193 |
| South American Physical Geography | 0 | - | 4.58 | 18,300 |
| Human Taxonomy | 0 | - | 4.68 | 18,887 |
| U.S States with the Most Cows | 0 | - | 4.63 | 29,650 |
| Largest Rivers by Discharge | 0 | - | 4.53 | 15,957 |
| City to River #2 - Difficult | 0 | - | 4.64 | 25,881 |
| 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 | 300,583 |
| Famous Animals #1 | 0 | - | 4.03 | 239,020 |
| Sayings About Animals #1 | 0 | - | 4.35 | 107,467 |
| Movies with Animals in the Title #2 | 0 | - | 4.28 | 108,122 |
| Animals that Start with A | 0 | - | 4.26 | 111,763 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,276 |
| Animals that Start with B | 0 | - | 4.31 | 113,466 |
| Animals that Start with F | 0 | - | 4.28 | 106,828 |
| Most Popular Dog Breeds | 0 | - | 4.19 | 110,724 |
| Animals that Start with C | 0 | - | 4.23 | 92,612 |
| Animals that Start with R | 0 | - | 4.27 | 87,185 |
| Animals that Start with T | 0 | - | 4.32 | 91,239 |
| Animals that Start with O | 0 | - | 4.27 | 88,407 |
| Seas of Europe | 0 | - | 4.37 | 84,457 |
| Animals that Start with H | 0 | - | 4.31 | 86,100 |
| Spanish Animal Words | 0 | - | 4.53 | 95,522 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,563 |
| Animals that Start with P | 0 | - | 4.45 | 85,916 |
| Animals that Start with D | 0 | - | 4.25 | 86,722 |
| National Animals | 0 | - | 4.24 | 89,254 |
| Animals that Start with M | 0 | - | 4.23 | 83,802 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,755 |
| Brand-Name Animals | 0 | - | 4.16 | 74,374 |
| Biggest Animals by Category | 0 | - | 4.18 | 73,023 |
| Animals that Start with G | 0 | - | 4.25 | 79,921 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,003 |
| Cartoon Catchphrases Quiz | 0 | - | 4.20 | 69,675 |
| Animals that Start with E | 0 | - | 4.28 | 73,685 |
| North American Bird-Named Teams | 0 | - | 4.43 | 67,728 |
| Books with Animals in the Title #1 | 0 | - | 4.41 | 74,433 |
| Animal Varieties #2 | 0 | - | 4.40 | 66,518 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,732 |
| Bodies of Water by Satellite Image #1 | 0 | - | 4.20 | 71,513 |
| Biggest City by River | 0 | - | 4.41 | 52,743 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,133 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,809 |
| Movies with Landforms in the Name | 0 | - | 4.16 | 50,341 |
| Word Scramble - Animals #2 | 0 | - | 4.39 | 52,319 |
| Trees in the Answer | 0 | - | 4.25 | 45,787 |
| Name that Bug | 0 | - | 4.12 | 45,493 |
| Top 10 U.S. States with the Longest Coastline | 0 | - | 4.45 | 50,750 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,530 |
| Top 10 African Countries by Coastline | 0 | - | 4.27 | 47,855 |
| Famous Animals Quiz #3 | 0 | - | 4.24 | 43,196 |
| Animal Idioms Quiz #2 | 0 | - | 4.33 | 43,528 |
| Animal Idioms Quiz #1 | 0 | - | 4.32 | 42,969 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 56,053 |
| Animal Facts | 0 | - | 4.15 | 42,939 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,446 |
| Animals that Start with W | 0 | - | 4.36 | 47,010 |
| Sayings About Animals #4 | 0 | - | 4.21 | 41,986 |
| Geological Extremes | 0 | - | 4.34 | 39,973 |
| Countries with More Cows than People | 0 | - | 4.45 | 60,875 |
| A Whale of a Quiz | 0 | - | 4.41 | 36,023 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,912 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,033 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,291 |
| Birds A-Z | 0 | - | 4.24 | 36,434 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,416 |
| European Physical Geography | 0 | - | 4.26 | 33,414 |
| Rivers A-Z | 0 | - | 4.35 | 32,734 |
| Word Scramble - Random Animals | 0 | - | 4.41 | 49,005 |
| Famous Pets | 0 | - | 3.98 | 30,386 |
| Streets with Tree Names | 0 | - | 4.19 | 28,909 |
| Mammals in the Answer | 0 | - | 4.35 | 29,935 |
| Dog Knowledge | 0 | - | 4.46 | 34,253 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,394 |
| 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 | 31,509 |
| Landforms by Description Quiz | 0 | - | 4.33 | 25,992 |
| Extinct Animals | 0 | - | 4.19 | 27,446 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,043 |
| Cat Knowledge | 0 | - | 4.48 | 25,756 |
| Word Puzzles - Animals #2 | 0 | - | 4.20 | 24,803 |
| Elephant Knowledge | 0 | - | 4.41 | 23,922 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,590 |
| Rivers on Borders | 0 | - | 4.02 | 22,658 |
| The Shark Quiz!! | 0 | - | 4.25 | 24,663 |
| 3 and 4 Letter Birds | 0 | - | 4.25 | 23,751 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,949 |
| Rivers by City | 0 | - | 4.38 | 31,666 |
| Horse Vocabulary | 0 | - | 4.22 | 22,695 |
| Bear Knowledge | 0 | - | 4.54 | 35,021 |
| U.S. State Birds | 0 | - | 4.31 | 21,368 |
| Bird in the Answers | 0 | - | 4.10 | 33,404 |
| Mammal Knowledge #1 | 0 | - | 4.20 | 19,623 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,217 |
| Mammal Knowledge #2 | 0 | - | 4.13 | 18,471 |
| Dinosaur Trivia | 0 | - | 4.36 | 21,979 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,341 |
| Bodies of Water by Satellite Image #2 | 0 | - | 4.36 | 19,621 |
| Snake Knowledge | 0 | - | 4.49 | 18,763 |
| Lion Trivia | 0 | - | 4.19 | 16,383 |
| Horse Knowledge | 0 | - | 4.45 | 23,982 |
| 3 and 4 Letter Trees | 0 | - | 4.21 | 17,209 |
| Books with Animals in the Title #2 | 0 | - | 4.23 | 18,004 |
| Primate Knowledge | 0 | - | 4.17 | 15,279 |
| Sea Creatures by Picture | 0 | - | 4.27 | 17,637 |
| 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 | 36,127 |
| Longest Rivers in the UK | 0 | - | 4.42 | 13,752 |
