| French Animal Words | 0 | - | 4.44 | 135,095 |
| Spanish Animal Words | 0 | - | 4.53 | 96,008 |
| German-Speaking Countries | 0 | - | 4.92 | 146,090 |
| Animal Varieties #1 | 0 | - | 4.48 | 93,431 |
| A Whale of a Quiz | 0 | - | 4.41 | 36,177 |
| Animal Varieties #3 | 0 | - | 4.50 | 55,699 |
| Animal Stereotypes | 0 | - | 4.48 | 37,561 |
| Animal Varieties #2 | 0 | - | 4.40 | 66,972 |
| Types of Bears | 0 | - | 4.50 | 143,991 |
| Deadly Animals | 0 | - | 4.02 | 110,857 |
| Famous Animals #1 | 0 | - | 4.03 | 240,051 |
| Famous Animals #2 | 0 | - | 4.02 | 57,614 |
| Famous Animals Quiz #3 | 0 | - | 4.24 | 43,439 |
| Animal Facts | 0 | - | 4.15 | 43,061 |
| Cat Knowledge | 0 | - | 4.49 | 25,888 |
| Bear Knowledge | 0 | - | 4.54 | 35,185 |
| Cow Knowledge | 0 | - | 4.46 | 24,322 |
| Elephant Knowledge | 0 | - | 4.41 | 24,024 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 56,410 |
| Human Taxonomy | 0 | - | 4.70 | 19,000 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,849 |
| Animals: No Vowels #1 | 0 | - | 4.56 | 64,438 |
| Words Containing Animals #1 | 0 | - | 4.21 | 43,650 |
| Words Containing Animals #2 | 0 | - | 4.09 | 34,512 |
| Name that Bug | 0 | - | 4.12 | 45,660 |
| Pack Animals | 0 | - | 4.20 | 10,445 |
| Lion Trivia | 0 | - | 4.19 | 16,449 |
| Mammal Knowledge #1 | 0 | - | 4.20 | 19,740 |
| Mammal Knowledge #2 | 0 | - | 4.13 | 18,584 |
| Insect Knowledge #1 | 0 | - | 4.38 | 12,465 |
| Insect Knowledge #2 | 0 | - | 4.22 | 9,021 |
| Bird in the Answers | 0 | - | 4.11 | 34,025 |
| Bird Knowledge #2 | 0 | - | 4.42 | 14,255 |
| Horse Knowledge | 0 | - | 4.46 | 24,148 |
| Snake Knowledge | 0 | - | 4.49 | 18,890 |
| Animals that Start with L | 0 | - | 4.47 | 102,544 |
| Animals that Start with P | 0 | - | 4.45 | 86,556 |
| Animals that Start with S | 0 | - | 4.49 | 87,761 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,037 |
| Top World Languages | 0 | - | 4.92 | 831,227 |
| Animals: No Vowels #2 | 0 | - | 4.51 | 22,870 |
| Words that are Animals | 0 | - | 3.85 | 41,522 |
| Extinct Animals | 0 | - | 4.13 | 27,593 |
| Primate Knowledge | 0 | - | 4.17 | 15,353 |
| Reptile Picture Quiz | 0 | - | 4.32 | 14,400 |
| Earliest Domestication of Animals | 0 | - | 4.34 | 28,324 |
| Animals in the News | 0 | - | 4.37 | 26,846 |
| Multiple Choice Animal Quiz #2 | 0 | - | 4.21 | 15,524 |
| Largest Types of Birds | 0 | - | 4.19 | 27,037 |
| Bird Knowledge #1 | 0 | - | 4.33 | 15,786 |
| Fish Knowledge | 0 | - | 4.38 | 25,770 |
| Megadiverse Countries | 0 | - | 4.96 | 149,014 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 82,242 |
| Countries by Official Language | 0 | - | 4.95 | 196,217 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,609 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,942 |
| Countries in their Native Language | 0 | - | 4.99 | 199,958 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,853 |
| Official European Union Languages | 0 | - | 4.97 | 240,355 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,806 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,136 |
| Fictional Animals #1 | 0 | - | 4.06 | 46,482 |
| Mammals in the Answer | 0 | - | 4.35 | 30,006 |
| Three Letter Animals Quiz | 0 | - | 3.97 | 301,543 |
| Animals A-Z #1 | 0 | - | 4.40 | 93,973 |
| Animals A-Z #2 | 0 | - | 4.12 | 66,558 |
| Word Puzzles - Animals #1 | 0 | - | 4.37 | 28,743 |
| Word Puzzles - Animals #2 | 0 | - | 4.20 | 24,933 |
| Animal Decoder | 0 | - | 4.06 | 15,613 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,326 |
| Animals by Skeleton Image | 0 | - | 4.81 | 47,047 |
| Fish... or Not a Fish? | 0 | - | 4.39 | 43,814 |
| The Shark Quiz!! | 0 | - | 4.25 | 24,829 |
| Animals that Start with A | 0 | - | 4.26 | 112,571 |
| Animals that Start with B | 0 | - | 4.31 | 114,518 |
| Animals that Start with C | 0 | - | 4.21 | 93,642 |
| Animals that Start with D | 0 | - | 4.25 | 87,376 |
| Animals that Start with E | 0 | - | 4.28 | 74,265 |
| Animals that Start with F | 0 | - | 4.28 | 107,550 |
| Animals that Start with G | 0 | - | 4.25 | 80,480 |
| Animals that Start with K | 0 | - | 4.07 | 66,811 |
| Animals that Start with M | 0 | - | 4.23 | 84,351 |
| Animals that Start with R | 0 | - | 4.28 | 87,737 |
| Animals that Start with T | 0 | - | 4.32 | 92,184 |
| Animals that Start with H | 0 | - | 4.31 | 86,655 |
| Animals that Start with O | 0 | - | 4.27 | 88,888 |
| Animals that Start with W | 0 | - | 4.36 | 47,428 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 84,240 |
| Countries with Fjords | 0 | - | 4.94 | 101,588 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,948 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,753 |
| Spanish to English Country Names | 0 | - | 4.86 | 34,018 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,982 |
| Top World Languages A-Z | 0 | - | 4.81 | 37,022 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,756 |
| Italian Name Translation | 0 | - | 4.83 | 48,206 |
| French-Speaking Countries | 0 | - | 4.85 | 271,878 |
| Fictional Animals #2 | 0 | - | 3.97 | 36,404 |
| Animals that Start with N | 0 | - | 3.73 | 31,900 |
| World's Longest Rivers | 0 | - | 4.89 | 137,780 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 165,869 |
| English Speaking Countries | 0 | - | 4.64 | 358,426 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 114,038 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 72,214 |
| Top African Languages on a Map | 0 | - | 4.94 | 75,465 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,656 |
| Category Elimination - Official Languages | 0 | - | 4.98 | 70,508 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,992 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,249 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,979 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,808 |
| Three Letter Mammals Quiz | 0 | - | 3.69 | 11,941 |
| Four Letter Mammals Quiz | 0 | - | 3.83 | 12,626 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,925 |
| World's Longest Rivers on a Map | 0 | - | 4.90 | 88,452 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 56,997 |
| Countries With No Rivers | 0 | - | 4.96 | 77,255 |
| Name a Valid Country on Each River | 0 | - | 4.95 | 63,140 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,225 |
| North Sea Countries | 0 | - | 4.92 | 87,786 |
| Black Sea Countries | 0 | - | 4.87 | 60,798 |
| Countries That Touch the Red Sea | 0 | - | 4.91 | 65,660 |
| Caspian Sea Countries | 0 | - | 4.91 | 63,749 |
| Seas on the World Map | 0 | - | 4.96 | 136,112 |
| Seas of the World | 0 | - | 5.00 | 158,844 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 414,402 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,425 |
| Places in their Native Language #2 | 0 | - | 4.80 | 135,074 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 128,471 |
| Name an Official Language A-Z | 0 | - | 4.91 | 177,145 |
| Baby, Male and Female Animals | 0 | - | 4.43 | 151,239 |
| Animal Adjectives | 0 | - | 4.77 | 60,242 |
| Animals by Close-up Image | 0 | - | 4.42 | 219,532 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 46,065 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,544 |
| Mammals by Picture #1 | 0 | - | 4.69 | 92,562 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,695 |
| Geologic Time Scale | 0 | - | 4.41 | 10,083 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 75,070 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 30,195 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 116,096 |
| American Countries With No Atlantic Coastline | 0 | - | 4.93 | 92,893 |
| Random Name Translation | 0 | - | 4.52 | 42,892 |
| Slavic Languages | 0 | - | 4.67 | 54,776 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,702 |
| Translations of John | 0 | - | 4.53 | 27,395 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 58,309 |
| French Food Words | 0 | - | 4.80 | 196,273 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,973 |
| Biggest Animals by Category | 0 | - | 4.18 | 73,318 |
| Word Scramble - Animals #1 | 0 | - | 4.36 | 138,547 |
| Animal Sounds | 0 | - | 4.27 | 192,157 |
| Animals of Australia | 0 | - | 4.53 | 42,525 |
| Word Scramble - Animals #2 | 0 | - | 4.39 | 52,647 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,510 |
| Animal Emojis | 0 | - | 4.74 | 85,441 |
| Fish by Picture #1 | 0 | - | 4.41 | 109,136 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,963 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,563 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,384 |
| Birds by Picture #1 | 0 | - | 4.47 | 42,137 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,628 |
| Birds in the Answer | 0 | - | 4.56 | 52,946 |
| North American Bird-Named Teams | 0 | - | 4.44 | 68,034 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.27 | 70,859 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,325 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,297 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,741 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,983 |
| Great Lakes Quiz | 0 | - | 4.80 | 50,707 |
| Rivers and Lakes whose Names are Countries | 0 | - | 4.95 | 45,827 |
| Famous Rivers | 0 | - | 4.75 | 105,317 |
| City to River #1 | 0 | - | 4.59 | 35,919 |
| Most Populous River Basins | 0 | - | 4.55 | 39,837 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,514 |
| Seas that Touch the Most Countries | 0 | - | 4.64 | 97,173 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,317 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.88 | 29,462 |
| Flowers by Picture | 0 | - | 4.46 | 105,890 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 223,093 |
| Top European Languages on a Map | 0 | - | 4.77 | 133,000 |
| Spanish Name Translation | 0 | - | 4.13 | 169,406 |
| Spanish Food Words | 0 | - | 4.68 | 254,342 |
| Song Title Translation - German | 0 | - | 3.76 | 11,818 |
| Italian Food Words | 0 | - | 4.27 | 71,791 |
| Animal Idioms Quiz #1 | 0 | - | 4.30 | 43,221 |
| Animal Idioms Quiz #2 | 0 | - | 4.33 | 43,779 |
| Word Scramble - Random Animals | 0 | - | 4.38 | 49,510 |
| Birds by Picture #2 | 0 | - | 4.33 | 36,790 |
| Birds by Picture #3 | 0 | - | 4.24 | 33,541 |
| Dog Knowledge | 0 | - | 4.46 | 34,671 |
| Landforms by Description Quiz | 0 | - | 4.33 | 26,037 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 30,441 |
| Famous Lakes Quiz | 0 | - | 4.52 | 24,086 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,769 |
| Rivers by City | 0 | - | 4.38 | 31,784 |
| City to River #2 - Difficult | 0 | - | 4.64 | 26,270 |
| Largest Rivers by Discharge | 0 | - | 4.54 | 16,101 |
| Plants by Picture | 0 | - | 4.24 | 14,532 |
| Trees in the Answer | 0 | - | 4.23 | 45,948 |
