| Spanish Animal Words | 0 | - | 4.53 | 95,981 |
| French-Speaking Countries | 0 | - | 4.85 | 271,697 |
| Animal Varieties #1 | 0 | - | 4.48 | 93,178 |
| A Whale of a Quiz | 0 | - | 4.41 | 36,163 |
| Animal Varieties #3 | 0 | - | 4.50 | 55,599 |
| Animal Stereotypes | 0 | - | 4.48 | 37,497 |
| Animal Varieties #2 | 0 | - | 4.40 | 66,858 |
| Types of Bears | 0 | - | 4.50 | 143,941 |
| Deadly Animals | 0 | - | 4.02 | 110,806 |
| Famous Animals #1 | 0 | - | 4.03 | 239,988 |
| Famous Animals #2 | 0 | - | 4.02 | 57,590 |
| Famous Animals Quiz #3 | 0 | - | 4.24 | 43,418 |
| Animal Facts | 0 | - | 4.15 | 43,044 |
| Cat Knowledge | 0 | - | 4.49 | 25,880 |
| Bear Knowledge | 0 | - | 4.54 | 35,169 |
| Cow Knowledge | 0 | - | 4.46 | 24,313 |
| Elephant Knowledge | 0 | - | 4.41 | 24,011 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 56,356 |
| Human Taxonomy | 0 | - | 4.70 | 18,991 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,824 |
| Animals: No Vowels #1 | 0 | - | 4.56 | 64,377 |
| French Food Words | 0 | - | 4.80 | 196,067 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,624 |
| Words Containing Animals #2 | 0 | - | 4.09 | 34,498 |
| Name that Bug | 0 | - | 4.12 | 45,644 |
| Pack Animals | 0 | - | 4.20 | 10,442 |
| Lion Trivia | 0 | - | 4.19 | 16,440 |
| Mammal Knowledge #1 | 0 | - | 4.20 | 19,725 |
| Mammal Knowledge #2 | 0 | - | 4.13 | 18,566 |
| Insect Knowledge #1 | 0 | - | 4.38 | 12,455 |
| Insect Knowledge #2 | 0 | - | 4.22 | 9,012 |
| Bird in the Answers | 0 | - | 4.11 | 33,963 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,245 |
| Horse Knowledge | 0 | - | 4.46 | 24,137 |
| Snake Knowledge | 0 | - | 4.49 | 18,876 |
| Animals that Start with L | 0 | - | 4.47 | 102,445 |
| Animals that Start with P | 0 | - | 4.45 | 86,480 |
| Animals that Start with S | 0 | - | 4.49 | 87,674 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,723 |
| Top World Languages | 0 | - | 4.92 | 829,920 |
| Animals: No Vowels #2 | 0 | - | 4.51 | 22,778 |
| Words that are Animals | 0 | - | 3.85 | 41,515 |
| Extinct Animals | 0 | - | 4.13 | 27,579 |
| Primate Knowledge | 0 | - | 4.17 | 15,350 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,386 |
| Earliest Domestication of Animals | 0 | - | 4.34 | 28,310 |
| Animals in the News | 0 | - | 4.37 | 26,839 |
| Multiple Choice Animal Quiz #2 | 0 | - | 4.21 | 15,514 |
| Largest Types of Birds | 0 | - | 4.19 | 27,022 |
| Bird Knowledge #1 | 0 | - | 4.33 | 15,783 |
| Fish Knowledge | 0 | - | 4.38 | 25,748 |
| Megadiverse Countries | 0 | - | 4.96 | 135,287 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 82,130 |
| Countries by Official Language | 0 | - | 4.95 | 196,021 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,382 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,664 |
| Countries in their Native Language | 0 | - | 4.99 | 199,752 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,735 |
| Official European Union Languages | 0 | - | 4.97 | 239,819 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,662 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,963 |
| Fictional Animals #1 | 0 | - | 4.06 | 46,471 |
| Mammals in the Answer | 0 | - | 4.35 | 29,996 |
| Three Letter Animals Quiz | 0 | - | 3.97 | 301,438 |
| Animals A-Z #1 | 0 | - | 4.40 | 93,921 |
| Animals A-Z #2 | 0 | - | 4.12 | 66,530 |
| Word Puzzles - Animals #1 | 0 | - | 4.37 | 28,722 |
| Word Puzzles - Animals #2 | 0 | - | 4.20 | 24,919 |
| Animal Decoder | 0 | - | 4.06 | 15,596 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,319 |
| Animals by Skeleton Image | 0 | - | 4.81 | 46,952 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,749 |
| The Shark Quiz!! | 0 | - | 4.25 | 24,816 |
| Animals that Start with A | 0 | - | 4.26 | 112,452 |
| Animals that Start with B | 0 | - | 4.31 | 114,153 |
| Animals that Start with C | 0 | - | 4.21 | 93,542 |
| Animals that Start with D | 0 | - | 4.25 | 87,277 |
| Animals that Start with E | 0 | - | 4.28 | 74,184 |
| Animals that Start with F | 0 | - | 4.28 | 107,451 |
| Animals that Start with G | 0 | - | 4.25 | 80,395 |
| Animals that Start with K | 0 | - | 4.07 | 66,749 |
| Animals that Start with M | 0 | - | 4.23 | 84,286 |
| Animals that Start with R | 0 | - | 4.28 | 87,673 |
| Animals that Start with T | 0 | - | 4.32 | 92,118 |
| Animals that Start with H | 0 | - | 4.31 | 86,581 |
| Animals that Start with O | 0 | - | 4.27 | 88,828 |
| Animals that Start with W | 0 | - | 4.36 | 47,369 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 84,047 |
| Countries with Fjords | 0 | - | 4.94 | 101,330 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,904 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,707 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,889 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,685 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,983 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,698 |
| German-Speaking Countries | 0 | - | 4.92 | 146,030 |
| Italian Name Translation | 0 | - | 4.83 | 47,985 |
| French Phrases used in English | 0 | - | 4.16 | 46,807 |
| Song Title Translation - French | 0 | - | 4.56 | 26,960 |
| Fictional Animals #2 | 0 | - | 3.97 | 36,389 |
| Animals that Start with N | 0 | - | 3.73 | 31,838 |
| World's Longest Rivers | 0 | - | 4.89 | 137,623 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 165,509 |
| English Speaking Countries | 0 | - | 4.64 | 358,274 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,982 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 72,092 |
| Top African Languages on a Map | 0 | - | 4.94 | 75,275 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,571 |
| Category Elimination - Official Languages | 0 | - | 4.98 | 70,408 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,934 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,154 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,850 |
| Proverbs Translated into French | 0 | - | 4.19 | 15,045 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,743 |
| Three Letter Mammals Quiz | 0 | - | 3.69 | 11,931 |
| Four Letter Mammals Quiz | 0 | - | 3.83 | 12,612 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,883 |
| World's Longest Rivers on a Map | 0 | - | 4.90 | 88,339 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 56,885 |
| Countries With No Rivers | 0 | - | 4.96 | 77,145 |
| Name a Valid Country on Each River | 0 | - | 4.95 | 63,024 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,178 |
| North Sea Countries | 0 | - | 4.92 | 87,701 |
| Black Sea Countries | 0 | - | 4.87 | 60,749 |
| Countries That Touch the Red Sea | 0 | - | 4.91 | 65,591 |
| Caspian Sea Countries | 0 | - | 4.91 | 63,679 |
| Seas on the World Map | 0 | - | 4.96 | 135,977 |
| Seas of the World | 0 | - | 5.00 | 158,505 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,372 |
| Places in their Native Language #2 | 0 | - | 4.80 | 134,965 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 128,124 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,989 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 151,115 |
| Animal Adjectives | 0 | - | 4.77 | 60,203 |
| Animals by Close-up Image | 0 | - | 4.42 | 219,082 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 46,019 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,487 |
| Mammals by Picture #1 | 0 | - | 4.70 | 92,463 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,628 |
| Geologic Time Scale | 0 | - | 4.41 | 10,066 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 75,005 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 30,161 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,986 |
| American Countries With No Atlantic Coastline | 0 | - | 4.93 | 92,820 |
| Random Name Translation | 0 | - | 4.52 | 42,844 |
| Slavic Languages | 0 | - | 4.67 | 54,699 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,679 |
| Translations of John | 0 | - | 4.53 | 27,356 |
| Count to 10 in Europe | 0 | - | 4.63 | 166,436 |
| Colors in Europe Quiz | 0 | - | 4.50 | 51,596 |
| European Greetings | 0 | - | 4.41 | 61,413 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 58,237 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,955 |
| Biggest Animals by Category | 0 | - | 4.18 | 73,293 |
| Word Scramble - Animals #1 | 0 | - | 4.36 | 138,467 |
| Animal Sounds | 0 | - | 4.27 | 192,031 |
| Animals of Australia | 0 | - | 4.53 | 42,496 |
| Word Scramble - Animals #2 | 0 | - | 4.39 | 52,618 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,487 |
| Animal Emojis | 0 | - | 4.74 | 85,285 |
| Fish by Picture #1 | 0 | - | 4.41 | 109,061 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,867 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,509 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,351 |
| Birds by Picture #1 | 0 | - | 4.47 | 42,055 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,576 |
| Birds in the Answer | 0 | - | 4.56 | 52,931 |
| North American Bird-Named Teams | 0 | - | 4.44 | 68,003 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.27 | 70,850 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,311 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,288 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,729 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,929 |
| Great Lakes Quiz | 0 | - | 4.80 | 50,667 |
| Famous Rivers | 0 | - | 4.75 | 105,248 |
| City to River #1 | 0 | - | 4.59 | 35,903 |
| Most Populous River Basins | 0 | - | 4.55 | 39,817 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,486 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 97,121 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,265 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.88 | 29,365 |
| Flowers by Picture | 0 | - | 4.46 | 105,869 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 222,616 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,851 |
| Spanish Name Translation | 0 | - | 4.13 | 169,334 |
| Days of the Week in Europe | 0 | - | 4.53 | 29,936 |
| Spanish Food Words | 0 | - | 4.67 | 253,966 |
| Italian Food Words | 0 | - | 4.27 | 71,730 |
| Animal Idioms Quiz #1 | 0 | - | 4.29 | 43,185 |
| Animal Idioms Quiz #2 | 0 | - | 4.33 | 43,741 |
| Word Scramble - Random Animals | 0 | - | 4.38 | 49,467 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,726 |
| Birds by Picture #3 | 0 | - | 4.24 | 33,491 |
| Dog Knowledge | 0 | - | 4.46 | 34,555 |
| Landforms by Description Quiz | 0 | - | 4.33 | 26,034 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 30,411 |
| Famous Lakes Quiz | 0 | - | 4.52 | 24,076 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,739 |
| Rivers by City | 0 | - | 4.38 | 31,778 |
| City to River #2 - Difficult | 0 | - | 4.64 | 26,228 |
