| Random Symbol to Element | 0 | - | 4.88 | 92,119 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 162,876 |
| Solve the Secret Country #2 | 0 | - | 4.84 | 115,865 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,091 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,044 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,086,453 |
| Three Letter Body Parts | 0 | - | 4.39 | 204,779 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 87,610 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,226 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,089,884 |
| Body Parts in History and Culture | 0 | - | 4.42 | 34,994 |
| International Scientific Units | 0 | - | 4.95 | 155,064 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,042 |
| Science General Knowledge #1 | 0 | - | 4.54 | 163,326 |
| Science General Knowledge #2 | 0 | - | 4.47 | 116,548 |
| Science General Knowledge #3 | 0 | - | 4.55 | 99,117 |
| Word Chain - Science | 0 | - | 4.59 | 54,358 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 150,227 |
| The Sun Quiz | 0 | - | 4.93 | 34,041 |
| First Names of Scientists | 0 | - | 4.50 | 56,428 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,217,632 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,805 |
| Periodic Table Elements A-Z | 0 | - | 4.78 | 102,117 |
| Name a Valid Element | 0 | - | 4.64 | 69,512 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 214,407 |
| Word Scramble - Cities #1 | 0 | - | 4.50 | 98,944 |
| Groups of Two - Science | 0 | - | 4.26 | 48,118 |
| Science Decoder | 0 | - | 4.52 | 28,636 |
| Elements by Symbol Quiz | 0 | - | 4.92 | 195,244 |
| Speed Symbol by Element | 0 | - | 4.91 | 103,433 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 93,339 |
| Noble Gases | 0 | - | 4.89 | 77,317 |
| Elements that are Gases at Room Temperature | 0 | - | 4.85 | 63,949 |
| Periodic Table Symbols | 0 | - | 4.97 | 70,744 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 80,734 |
| Name the Virus | 0 | - | 4.86 | 76,169 |
| Body Part Words | 0 | - | 4.43 | 145,083 |
| Human Body A-Z | 0 | - | 4.51 | 128,190 |
| Answers are Elements #1 | 0 | - | 4.30 | 52,683 |
| Animal Anatomy Quiz | 0 | - | 4.38 | 59,611 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 118,046 |
| Word Scramble - Colors | 0 | - | 4.20 | 77,540 |
| Word Scramble - Musical Instruments | 0 | - | 4.31 | 59,596 |
| Word Scramble - Deities | 0 | - | 4.55 | 10,293 |
| Christmas Word Scramble | 0 | - | 4.36 | 41,719 |
| Word Scramble - Cities #2 | 0 | - | 4.54 | 25,005 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 79,712 |
| Famous Scientists | 0 | - | 4.57 | 42,390 |
| Citrus Fruits | 0 | - | 3.65 | 41,939 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,533 |
| Elemental Words | 0 | - | 4.96 | 51,932 |
| Metals of Antiquity | 0 | - | 4.94 | 92,814 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,174 |
| Astronomy Decoder | 0 | - | 4.50 | 37,815 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,126 |
| Best-Selling Video Game Consoles | 0 | - | 4.81 | 269,078 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,389 |
| Astronomy Quiz | 0 | - | 4.89 | 81,586 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 135,581 |
| Solar System Trivia | 0 | - | 4.93 | 45,912 |
| Body Parts - No Vowels | 0 | - | 4.15 | 25,024 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,584,014 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 109,826 |
| Word Scramble - Christmas | 0 | - | 3.88 | 35,756 |
| Halloween Scramble | 0 | - | 4.14 | 31,621 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 107,685 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,679 |
| 4-Letter Geography Chain #1 | 0 | - | 4.82 | 169,090 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,487 |
| Name a Valid World City | 0 | - | 4.83 | 70,011 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,649 |
| Scientific Names | 0 | - | 4.32 | 78,099 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 85,983 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,894 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.72 | 187,121 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,155 |
| Body Part Cliches | 0 | - | 4.43 | 122,874 |
| Medical Conditions Quiz | 0 | - | 4.78 | 122,996 |
| 7 Deadly Sins | 0 | - | 4.88 | 394,329 |
| Disney Animated Characters | 0 | - | 4.88 | 598,819 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,207 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,484 |
| Countries with Four Letters | 0 | - | 4.99 | 418,089 |
| Eight Most Popular Berries | 0 | - | 4.43 | 98,467 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.44 | 66,895 |
| Most Common Body Part Words | 0 | - | 3.90 | 31,467 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 710,626 |
| Word Scramble - Beers | 0 | - | 3.83 | 35,922 |
| Fruits: No Vowels | 0 | - | 4.81 | 98,396 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 302,498 |
| Islands by Country #1 | 0 | - | 4.87 | 174,401 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,845 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,218 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,289 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 113,543 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,163 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,291 |
| Country Chain | 0 | - | 4.96 | 215,581 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,524 |
| Cold War Decoder | 0 | - | 4.83 | 51,880 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,276 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 49,565 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,611 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,572 |
| Name a Valid Country #1 | 0 | - | 4.99 | 282,928 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,111 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,268 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,580 |
| Name a Valid Country #6 | 0 | - | 4.94 | 126,199 |
| Name a Valid Country #7 | 0 | - | 4.91 | 126,305 |
| Name a Valid Country #8 | 0 | - | 4.85 | 95,825 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 74,113 |
| Name a Valid Country #10 | 0 | - | 4.93 | 41,299 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 45,122 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,207 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,041 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,326 |
| Science Multiple Choice #2 | 0 | - | 4.40 | 36,298 |
| Science Multiple Choice #3 | 0 | - | 4.38 | 34,335 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,552 |
| Environmental Issues | 0 | - | 4.54 | 26,710 |
| Chuck Norris Facts | 0 | - | 4.50 | 8,000 |
| Two Letter Answers #2 | 0 | - | 4.43 | 85,983 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,367 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.64 | 45,052 |
| "Son" Last Names | 0 | - | 4.48 | 41,694 |
| Shared First Names #2 | 0 | - | 4.53 | 44,946 |
| People with J Initials | 0 | - | 4.51 | 55,200 |
| History Analogies #1 | 0 | - | 4.53 | 89,748 |
| History Analogies #2 | 0 | - | 4.49 | 76,968 |
| History Analogies #3 | 0 | - | 4.61 | 80,404 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 61,701 |
| English Idioms #1 | 0 | - | 4.45 | 144,190 |
| Cliche Quotes Quiz #2 | 0 | - | 4.43 | 45,217 |
| Clothing Idioms | 0 | - | 4.41 | 34,043 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,200 |
| Are You a Nerd? | 0 | - | 4.35 | 44,468 |
| The Eleven Colors | 0 | - | 4.73 | 233,176 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,319 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,379 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 76,976 |
| The Only Country ... | 0 | - | 4.91 | 79,732 |
| King in the Answers | 0 | - | 4.42 | 49,566 |
| Super in the Answers | 0 | - | 4.52 | 109,236 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,064 |
| Five Letter Geography #3 | 0 | - | 4.61 | 130,712 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,274 |
| Six Letter Geography #2 | 0 | - | 4.68 | 67,378 |
| Six Letter Geography #3 | 0 | - | 4.53 | 81,402 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 71,922 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 37,621 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,433 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,095 |
| Five Letter Geography #4 | 0 | - | 4.78 | 84,541 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,423 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 122,256 |
| Random Countries by Borders | 0 | - | 4.99 | 81,581 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 135,922 |
| Random History by Country | 0 | - | 4.53 | 34,636 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,020 |
| Random Point on Land to Country | 0 | - | 4.99 | 231,543 |
| Random Countries on a Topological Map | 0 | - | 4.91 | 51,131 |
| Geography Decoder | 0 | - | 4.53 | 75,313 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,349 |
| Letter A Geography Chain | 0 | - | 4.53 | 67,295 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,051 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,074 |
| Fruits by Picture | 0 | - | 4.20 | 804,339 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,126 |
| Answers are Beverages | 0 | - | 4.10 | 61,007 |
| Basic Cake Ingredients | 0 | - | 4.22 | 109,703 |
| Types of Food | 0 | - | 4.24 | 89,074 |
| The Foods they Ate | 0 | - | 4.03 | 69,170 |
| Animals Used in Food | 0 | - | 4.29 | 77,580 |
| Most Popular Fruits | 0 | - | 4.16 | 96,145 |
| Healthiest Fruits and Vegetables | 0 | - | 4.04 | 46,623 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 84,641 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,276 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,504 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,279 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,568 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,104 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,657 |
| Name a Valid Island Country | 0 | - | 4.96 | 113,948 |
| Country Quiz on a Map - USA | 0 | - | 4.98 | 56,722 |
| Science Vocabulary #1 | 0 | - | 4.34 | 71,337 |
| Science Vocabulary #3 | 0 | - | 4.31 | 51,623 |
| Rocks and Minerals Picture Quiz | 0 | - | 4.48 | 29,140 |
| Animals - Taxonomy to Common Name | 0 | - | 4.79 | 28,077 |
| Elements by Picture | 0 | - | 4.27 | 69,492 |
| Medical Acronyms | 0 | - | 4.43 | 95,725 |
| Medical Vocabulary | 0 | - | 4.54 | 58,470 |
| Two Letter Answers #4 | 0 | - | 4.27 | 88,575 |
| Two Letter Answers #1 | 0 | - | 4.31 | 108,281 |
| Three Letter Answers #2 | 0 | - | 4.09 | 71,568 |
| Two Letter Answers #3 | 0 | - | 4.15 | 82,355 |
| Three Letter Answers #1 | 0 | - | 4.32 | 73,799 |
| Historical Middle Names | 0 | - | 4.16 | 35,339 |
| People with Food Names | 0 | - | 4.10 | 60,426 |
| First Names of Historical Figures #2 | 0 | - | 4.32 | 40,204 |
