| French Animal Words | 0 | - | 4.44 | 134,704 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,432 |
| Animal Varieties #1 | 0 | - | 4.48 | 92,999 |
| A Whale of a Quiz | 0 | - | 4.41 | 36,113 |
| Animal Varieties #3 | 0 | - | 4.52 | 55,475 |
| Animal Stereotypes | 0 | - | 4.48 | 37,356 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,459 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,768 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,811 |
| Animal Varieties #2 | 0 | - | 4.40 | 66,755 |
| Types of Bears | 0 | - | 4.51 | 143,839 |
| Deadly Animals | 0 | - | 4.02 | 110,685 |
| Famous Animals #1 | 0 | - | 4.03 | 239,808 |
| Famous Animals #2 | 0 | - | 4.02 | 57,539 |
| Famous Animals Quiz #3 | 0 | - | 4.24 | 43,366 |
| Animal Facts | 0 | - | 4.15 | 43,012 |
| Cat Knowledge | 0 | - | 4.48 | 25,835 |
| Bear Knowledge | 0 | - | 4.54 | 35,116 |
| Cow Knowledge | 0 | - | 4.46 | 24,285 |
| Elephant Knowledge | 0 | - | 4.41 | 23,982 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 56,258 |
| Human Taxonomy | 0 | - | 4.69 | 18,935 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,743 |
| Animals: No Vowels #1 | 0 | - | 4.56 | 64,217 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,567 |
| Words Containing Animals #2 | 0 | - | 4.09 | 34,466 |
| Name that Bug | 0 | - | 4.12 | 45,594 |
| Pack Animals | 0 | - | 4.20 | 10,400 |
| Lion Trivia | 0 | - | 4.19 | 16,418 |
| Mammal Knowledge #1 | 0 | - | 4.20 | 19,691 |
| Mammal Knowledge #2 | 0 | - | 4.13 | 18,528 |
| Insect Knowledge #1 | 0 | - | 4.38 | 12,413 |
| Insect Knowledge #2 | 0 | - | 4.22 | 8,989 |
| Bird in the Answers | 0 | - | 4.11 | 33,831 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,211 |
| Horse Knowledge | 0 | - | 4.46 | 24,082 |
| Snake Knowledge | 0 | - | 4.49 | 18,838 |
| Animals that Start with L | 0 | - | 4.47 | 102,278 |
| Animals that Start with P | 0 | - | 4.45 | 86,330 |
| Animals that Start with S | 0 | - | 4.49 | 87,531 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,681 |
| Top World Languages | 0 | - | 4.92 | 825,184 |
| Spanish Food Words | 0 | - | 4.67 | 252,724 |
| Animals: No Vowels #2 | 0 | - | 4.50 | 22,469 |
| Spanish Name Translation | 0 | - | 4.13 | 169,066 |
| Words that are Animals | 0 | - | 3.85 | 41,489 |
| Extinct Animals | 0 | - | 4.16 | 27,536 |
| Primate Knowledge | 0 | - | 4.17 | 15,325 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,325 |
| Earliest Domestication of Animals | 0 | - | 4.34 | 28,279 |
| Animals in the News | 0 | - | 4.37 | 26,811 |
| Multiple Choice Animal Quiz #2 | 0 | - | 4.21 | 15,484 |
| Largest Types of Birds | 0 | - | 4.19 | 26,993 |
| Bird Knowledge #1 | 0 | - | 4.33 | 15,756 |
| Fish Knowledge | 0 | - | 4.38 | 25,684 |
| Megadiverse Countries | 0 | - | 4.96 | 135,063 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 81,760 |
| Countries by Official Language | 0 | - | 4.95 | 195,365 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,591 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,537 |
| Countries in their Native Language | 0 | - | 4.99 | 199,154 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,373 |
| Official European Union Languages | 0 | - | 4.97 | 239,024 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,198 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,196 |
| Song Title Translation - Spanish | 0 | - | 4.57 | 35,851 |
| Fictional Animals #1 | 0 | - | 4.06 | 46,443 |
| Mammals in the Answer | 0 | - | 4.35 | 29,979 |
| Three Letter Animals Quiz | 0 | - | 3.97 | 301,166 |
| Animals A-Z #1 | 0 | - | 4.40 | 93,779 |
| Animals A-Z #2 | 0 | - | 4.12 | 66,445 |
| Word Puzzles - Animals #1 | 0 | - | 4.37 | 28,679 |
| Word Puzzles - Animals #2 | 0 | - | 4.20 | 24,885 |
| Animal Decoder | 0 | - | 4.06 | 15,558 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,286 |
| Animals by Skeleton Image | 0 | - | 4.81 | 46,694 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,593 |
| The Shark Quiz!! | 0 | - | 4.25 | 24,768 |
| Animals that Start with A | 0 | - | 4.26 | 112,266 |
| Animals that Start with B | 0 | - | 4.31 | 113,977 |
| Animals that Start with C | 0 | - | 4.21 | 93,388 |
| Animals that Start with D | 0 | - | 4.25 | 87,141 |
| Animals that Start with E | 0 | - | 4.28 | 74,060 |
| Animals that Start with F | 0 | - | 4.28 | 107,281 |
| Animals that Start with G | 0 | - | 4.25 | 80,286 |
| Animals that Start with K | 0 | - | 4.07 | 66,657 |
| Animals that Start with M | 0 | - | 4.23 | 84,184 |
| Animals that Start with R | 0 | - | 4.28 | 87,547 |
| Animals that Start with T | 0 | - | 4.32 | 91,965 |
| Animals that Start with H | 0 | - | 4.31 | 86,472 |
| Animals that Start with O | 0 | - | 4.27 | 88,720 |
| Animals that Start with W | 0 | - | 4.36 | 47,277 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,918 |
| Countries with Fjords | 0 | - | 4.94 | 101,079 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,768 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,581 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,516 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,793 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,504 |
| Spanish Loan Words | 0 | - | 4.23 | 45,915 |
| German-Speaking Countries | 0 | - | 4.91 | 145,796 |
| Italian Name Translation | 0 | - | 4.83 | 47,337 |
| French-Speaking Countries | 0 | - | 4.85 | 271,004 |
| Fictional Animals #2 | 0 | - | 3.97 | 36,355 |
| Animals that Start with N | 0 | - | 3.73 | 31,775 |
| World's Longest Rivers | 0 | - | 4.90 | 137,127 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 164,494 |
| English Speaking Countries | 0 | - | 4.64 | 357,715 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,824 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,694 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,576 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,336 |
| Category Elimination - Official Languages | 0 | - | 4.98 | 70,052 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,621 |
| Three Letter Mammals Quiz | 0 | - | 3.69 | 11,907 |
| Four Letter Mammals Quiz | 0 | - | 3.83 | 12,581 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,791 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 87,998 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 56,619 |
| Countries With No Rivers | 0 | - | 4.96 | 76,945 |
| Name a Valid Country on Each River | 0 | - | 4.95 | 62,333 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,091 |
| North Sea Countries | 0 | - | 4.92 | 87,514 |
| Black Sea Countries | 0 | - | 4.87 | 60,667 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,468 |
| Caspian Sea Countries | 0 | - | 4.91 | 63,567 |
| Seas on the World Map | 0 | - | 4.96 | 135,592 |
| Seas of the World | 0 | - | 5.00 | 157,532 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,294 |
| Places in their Native Language #2 | 0 | - | 4.80 | 134,621 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,887 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,382 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 150,751 |
| Animal Adjectives | 0 | - | 4.77 | 60,087 |
| Animals by Close-up Image | 0 | - | 4.42 | 218,626 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,807 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,353 |
| Mammals by Picture #1 | 0 | - | 4.70 | 92,074 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,551 |
| Geologic Time Scale | 0 | - | 4.41 | 10,041 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,836 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 30,043 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,683 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,603 |
| Random Name Translation | 0 | - | 4.52 | 42,658 |
| Slavic Languages | 0 | - | 4.68 | 54,498 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,589 |
| Translations of John | 0 | - | 4.53 | 27,245 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 58,041 |
| French Food Words | 0 | - | 4.80 | 195,458 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,888 |
| Biggest Animals by Category | 0 | - | 4.18 | 73,207 |
| Word Scramble - Animals #1 | 0 | - | 4.36 | 138,215 |
| Animal Sounds | 0 | - | 4.26 | 191,848 |
| Animals of Australia | 0 | - | 4.52 | 42,382 |
| Word Scramble - Animals #2 | 0 | - | 4.39 | 52,512 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,425 |
| Word Scramble - Random Animals | 0 | - | 4.41 | 49,295 |
| Animal Emojis | 0 | - | 4.74 | 84,877 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,665 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,644 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,303 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,216 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,842 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,372 |
| Birds in the Answer | 0 | - | 4.56 | 52,886 |
| North American Bird-Named Teams | 0 | - | 4.44 | 67,933 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.27 | 70,823 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,263 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,262 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,665 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,760 |
| Great Lakes Quiz | 0 | - | 4.80 | 50,510 |
| Rivers and Lakes whose Names are Countries | 0 | - | 4.95 | 45,620 |
| Famous Rivers | 0 | - | 4.75 | 105,096 |
| City to River #1 | 0 | - | 4.59 | 35,869 |
| Most Populous River Basins | 0 | - | 4.55 | 39,756 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,398 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 96,938 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,162 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.88 | 29,099 |
| Flowers by Picture | 0 | - | 4.46 | 105,745 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 221,036 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,409 |
| Italian Food Words | 0 | - | 4.27 | 71,478 |
| Animal Idioms Quiz #1 | 0 | - | 4.29 | 43,108 |
| Animal Idioms Quiz #2 | 0 | - | 4.33 | 43,655 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,539 |
| Birds by Picture #3 | 0 | - | 4.24 | 33,337 |
| Dog Knowledge | 0 | - | 4.46 | 34,479 |
| Landforms by Description Quiz | 0 | - | 4.33 | 26,026 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 30,319 |
| Famous Lakes Quiz | 0 | - | 4.52 | 24,033 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,628 |
| Rivers by City | 0 | - | 4.38 | 31,746 |
| City to River #2 - Difficult | 0 | - | 4.64 | 26,131 |
| Largest Rivers by Discharge | 0 | - | 4.54 | 16,049 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,474 |
| Plants by Picture | 0 | - | 4.24 | 14,485 |
| Trees in the Answer | 0 | - | 4.25 | 45,891 |
