| Random Symbol to Element | 0 | - | 4.88 | 94,119 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 66,072 |
| Solve the Secret Country #1 | 0 | - | 4.93 | 168,477 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 120,658 |
| Anagram Chain - Countries | 0 | - | 4.98 | 117,815 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,126,707 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,929 |
| One-Syllable Human Body Parts | 0 | - | 4.30 | 88,569 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,519 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,102,963 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,458 |
| International Scientific Units | 0 | - | 4.95 | 158,444 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 63,364 |
| Science General Knowledge #1 | 0 | - | 4.54 | 167,449 |
| Science General Knowledge #2 | 0 | - | 4.48 | 119,725 |
| Science General Knowledge #3 | 0 | - | 4.56 | 109,644 |
| Word Chain - Science | 0 | - | 4.59 | 55,180 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 152,541 |
| The Sun Quiz | 0 | - | 4.93 | 35,139 |
| First Names of Scientists | 0 | - | 4.51 | 57,241 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,262,178 |
| Answers are Elements #2 | 0 | - | 4.43 | 55,218 |
| Periodic Table Elements A-Z | 0 | - | 4.78 | 103,545 |
| Name a Valid Element | 0 | - | 4.68 | 70,442 |
| Songs with Body Parts in the Title | 0 | - | 4.32 | 216,518 |
| Word Scramble - Cities #1 | 0 | - | 4.50 | 99,491 |
| Groups of Two - Science | 0 | - | 4.26 | 48,475 |
| Science Decoder | 0 | - | 4.52 | 28,865 |
| Elements by Symbol | 0 | - | 4.92 | 198,950 |
| Speed Symbol by Element | 0 | - | 4.90 | 105,660 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 94,831 |
| Noble Gases | 0 | - | 4.89 | 78,883 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 65,129 |
| Periodic Table Symbols | 0 | - | 4.97 | 80,951 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 82,480 |
| Name the Virus | 0 | - | 4.87 | 77,148 |
| Body Part Words | 0 | - | 4.43 | 146,430 |
| Human Body A-Z | 0 | - | 4.51 | 130,091 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,987 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,964 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 119,976 |
| Word Scramble - Colors | 0 | - | 4.20 | 77,864 |
| Word Scramble - Musical Instruments | 0 | - | 4.31 | 59,848 |
| Word Scramble - Deities | 0 | - | 4.52 | 10,517 |
| Christmas Word Scramble | 0 | - | 4.36 | 41,996 |
| Halloween Scramble | 0 | - | 4.14 | 31,798 |
| Word Scramble - Cities #2 | 0 | - | 4.54 | 25,256 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 81,188 |
| Famous Scientists | 0 | - | 4.58 | 42,865 |
| Citrus Fruits | 0 | - | 3.67 | 42,211 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 54,304 |
| Elemental Words | 0 | - | 4.97 | 52,585 |
| Metals of Antiquity | 0 | - | 4.95 | 93,981 |
| Category Elimination - Elements | 0 | - | 4.61 | 54,157 |
| Astronomy Decoder | 0 | - | 4.48 | 38,247 |
| Most Common Body Part Words | 0 | - | 3.90 | 31,836 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,754 |
| Best-Selling Video Game Consoles | 0 | - | 4.82 | 278,518 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 105,049 |
| Animals - Taxonomy to Common Name | 0 | - | 4.81 | 28,525 |
| Astronomy Quiz | 0 | - | 4.90 | 83,356 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 138,573 |
| Solar System Trivia | 0 | - | 4.93 | 47,228 |
| Body Parts - No Vowels | 0 | - | 4.13 | 25,587 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,656,591 |
| Italian Name Translation | 0 | - | 4.83 | 48,052 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 111,817 |
| Word Scramble - Christmas | 0 | - | 3.88 | 35,838 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 109,392 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 238,220 |
| 4-Letter Geography Chain #1 | 0 | - | 4.82 | 170,978 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,353 |
| Name a Valid World City | 0 | - | 4.85 | 72,056 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 71,213 |
| Scientific Names | 0 | - | 4.32 | 78,746 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 87,023 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 32,103 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 189,830 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,856 |
| Body Part Cliches | 0 | - | 4.44 | 123,679 |
| Bones of the Human Body | 0 | - | 4.51 | 43,663 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,944 |
| 7 Deadly Sins | 0 | - | 4.88 | 404,420 |
| Disney Animated Characters | 0 | - | 4.88 | 603,037 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,735 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 453,850 |
| Countries with Four Letters | 0 | - | 4.99 | 426,131 |
| Eight Most Popular Berries | 0 | - | 4.44 | 100,571 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.45 | 68,607 |
| Random Geographic Groups of Seven | 0 | - | 4.92 | 46,881 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 744,124 |
| Word Scramble - Beers | 0 | - | 3.83 | 36,073 |
| Fruits: No Vowels | 0 | - | 4.81 | 100,568 |
| European History for Dummies | 0 | - | 4.83 | 90,434 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 306,778 |
| Islands by Country #1 | 0 | - | 4.90 | 176,434 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,298 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,615 |
| Regions of Countries #3 | 0 | - | 4.85 | 91,434 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 115,464 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 202,186 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 184,551 |
| Country Chain | 0 | - | 4.96 | 218,567 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 219,304 |
| Cold War Decoder | 0 | - | 4.83 | 52,680 |
| Name a Valid Year in History | 0 | - | 4.93 | 68,006 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 50,436 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 324,052 |
| Name a Valid Country #3 | 0 | - | 4.99 | 266,207 |
| Name a Valid Country #1 | 0 | - | 4.99 | 295,706 |
| Name a Valid Country #2 | 0 | - | 4.98 | 254,402 |
| Name a Valid Country #4 | 0 | - | 4.97 | 259,383 |
| Name a Valid Country #5 | 0 | - | 4.99 | 210,236 |
| Name a Valid Country #6 | 0 | - | 4.95 | 145,462 |
| Name a Valid Country #7 | 0 | - | 4.91 | 132,005 |
| Name a Valid Country #8 | 0 | - | 4.86 | 101,137 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 76,885 |
| Name a Valid Country #10 | 0 | - | 4.93 | 44,331 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,990 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,164 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,977 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,774 |
| Science Multiple Choice #3 | 0 | - | 4.39 | 34,857 |
| Name the Constellations - With a Map | 0 | - | 4.91 | 36,244 |
| Environmental Issues | 0 | - | 4.54 | 26,916 |
| Country Quiz on a Map - USA | 0 | - | 4.98 | 58,564 |
| Chuck Norris Facts | 0 | - | 4.52 | 8,717 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,769 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,647 |
| People With Place Names | 0 | - | 4.01 | 39,890 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.61 | 46,346 |
| "Son" Last Names | 0 | - | 4.47 | 42,771 |
| Shared First Names #2 | 0 | - | 4.53 | 45,904 |
| People with J Initials | 0 | - | 4.51 | 55,624 |
| History Analogies #1 | 0 | - | 4.53 | 90,401 |
| History Analogies #2 | 0 | - | 4.49 | 77,522 |
| History Analogies #3 | 0 | - | 4.61 | 80,970 |
| Movie Title Antonyms #1 | 0 | - | 4.81 | 197,070 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 62,376 |
| English Idioms #1 | 0 | - | 4.45 | 146,543 |
| Cliche Quotes Quiz #2 | 0 | - | 4.42 | 45,562 |
| Clothing Idioms | 0 | - | 4.41 | 34,368 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 324,382 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,770 |
| Are You a Nerd? | 0 | - | 4.35 | 45,198 |
| The Eleven Colors | 0 | - | 4.74 | 236,095 |
| Groups of Things - History #1 | 0 | - | 4.41 | 94,541 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,829 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,778 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 81,510 |
| The Only Country ... | 0 | - | 4.91 | 81,963 |
| King in the Answers | 0 | - | 4.42 | 50,436 |
| Super in the Answers | 0 | - | 4.52 | 110,791 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,731 |
| Five Letter Geography #3 | 0 | - | 4.63 | 132,099 |
| Six Letter Geography #1 | 0 | - | 4.42 | 115,067 |
| Six Letter Geography #2 | 0 | - | 4.68 | 68,007 |
| Six Letter Geography #3 | 0 | - | 4.52 | 82,053 |
| Seven Letter Geography #1 | 0 | - | 4.48 | 80,594 |
| Seven Letter Geography #3 | 0 | - | 4.51 | 38,942 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,740 |
| Five Letter Geography #1 | 0 | - | 4.48 | 152,137 |
| Five Letter Geography #4 | 0 | - | 4.77 | 85,315 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,763 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 125,422 |
| Random Countries by Borders | 0 | - | 4.99 | 83,153 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 141,699 |
| Random History by Country | 0 | - | 4.53 | 35,021 |
| Random Name a Valid Country | 0 | - | 4.99 | 206,778 |
| Random Point on Land to Country | 0 | - | 4.99 | 237,440 |
| Random Countries on a Topological Map | 0 | - | 4.91 | 53,009 |
| Geography Decoder | 0 | - | 4.53 | 75,855 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,855 |
| Letter A Geography Chain | 0 | - | 4.54 | 67,761 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,463 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,890 |
| Fruits by Picture | 0 | - | 4.19 | 809,615 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,875 |
| Answers are Beverages | 0 | - | 4.06 | 61,839 |
| Basic Cake Ingredients | 0 | - | 4.23 | 110,969 |
| Types of Food | 0 | - | 4.25 | 90,670 |
| The Foods they Ate | 0 | - | 4.03 | 69,814 |
| Animals Used in Food | 0 | - | 4.28 | 78,616 |
| Most Popular Fruits | 0 | - | 4.16 | 97,088 |
| Healthiest Fruits and Vegetables | 0 | - | 4.02 | 46,952 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 85,739 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 124,220 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 62,179 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 238,378 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 227,263 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 193,874 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,053 |
| Name a Valid Island Country | 0 | - | 4.97 | 130,303 |
| Science Vocabulary #1 | 0 | - | 4.34 | 72,216 |
| Science Vocabulary #3 | 0 | - | 4.31 | 52,250 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,529 |
| Elements by Picture | 0 | - | 4.27 | 70,349 |
| Medical Acronyms | 0 | - | 4.43 | 97,289 |
| Medical Vocabulary | 0 | - | 4.54 | 59,510 |
| History General Knowledge #13 | 0 | - | 4.69 | 50,158 |
