| Random Symbol to Element | 0 | - | 4.88 | 93,619 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,100,943 |
| The Only Country ... | 0 | - | 4.91 | 81,668 |
| Science General Knowledge #1 | 0 | - | 4.54 | 167,060 |
| Science General Knowledge #2 | 0 | - | 4.48 | 119,511 |
| Science General Knowledge #3 | 0 | - | 4.56 | 109,416 |
| Word Chain - Science | 0 | - | 4.59 | 55,077 |
| International Scientific Units | 0 | - | 4.95 | 157,760 |
| First Names of Scientists | 0 | - | 4.51 | 57,130 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 63,156 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,255,260 |
| Answers are Elements #2 | 0 | - | 4.43 | 55,161 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 103,295 |
| Name a Valid Element | 0 | - | 4.67 | 70,306 |
| Medical Acronyms | 0 | - | 4.43 | 97,131 |
| Medical Vocabulary | 0 | - | 4.54 | 59,381 |
| Groups of Two - Science | 0 | - | 4.26 | 48,424 |
| Science Decoder | 0 | - | 4.52 | 28,833 |
| Elements by Symbol | 0 | - | 4.92 | 198,216 |
| Speed Symbol by Element | 0 | - | 4.90 | 105,305 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 94,593 |
| Noble Gases | 0 | - | 4.89 | 78,656 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,920 |
| Periodic Table Symbols | 0 | - | 4.97 | 75,519 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 82,177 |
| Body Part Words | 0 | - | 4.43 | 146,279 |
| Name the Virus | 0 | - | 4.87 | 77,001 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 58,129 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,933 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,980 |
| Astronomy Decoder | 0 | - | 4.48 | 38,166 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 176,904 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,831 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 88,452 |
| Medical Specialties | 0 | - | 4.32 | 91,987 |
| Famous People from Africa | 0 | - | 4.45 | 10,981 |
| World Cities by Clue #2 | 0 | - | 4.49 | 50,386 |
| Cities that End in A by Clue | 0 | - | 4.55 | 53,144 |
| Cities that End in O by Clue | 0 | - | 4.56 | 61,426 |
| Cities that End in N by Clue | 0 | - | 4.55 | 54,279 |
| Cities that End in I by Clue | 0 | - | 4.62 | 57,486 |
| Cities that End in S by Clue | 0 | - | 4.57 | 45,102 |
| Citrus Fruits | 0 | - | 3.66 | 42,132 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 54,191 |
| Elemental Words | 0 | - | 4.97 | 52,483 |
| Metals of Antiquity | 0 | - | 4.95 | 93,771 |
| The Diseases They Had | 0 | - | 4.15 | 14,049 |
| Dumb it Down Doc | 0 | - | 4.13 | 65,106 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,644,124 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,658 |
| Best-Selling Video Game Consoles | 0 | - | 4.82 | 276,985 |
| Random Cities by Clue | 0 | - | 4.53 | 42,827 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,806 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 80,991 |
| Famous Scientists | 0 | - | 4.57 | 42,790 |
| Astronomy Quiz | 0 | - | 4.90 | 83,049 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 138,098 |
| Solar System Trivia | 0 | - | 4.93 | 46,988 |
| Songs with Body Parts in the Title | 0 | - | 4.32 | 216,231 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,551 |
| Italian Name Translation | 0 | - | 4.83 | 47,671 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 111,329 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,109,674 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 167,315 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 119,707 |
| Anagram Chain - Countries | 0 | - | 4.98 | 117,242 |
| 7 Deadly Sins | 0 | - | 4.88 | 402,633 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 109,128 |
| Famous Catholics | 0 | - | 4.26 | 33,252 |
| Disney Animated Characters | 0 | - | 4.88 | 602,422 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 237,757 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 452,549 |
| Cities that End in R by Clue | 0 | - | 4.68 | 19,008 |
| Cities that End in M by Clue | 0 | - | 4.56 | 21,341 |
| U.S. Cities by Clue #1 | 0 | - | 4.28 | 48,137 |
| U.S. Cities by Clue #2 | 0 | - | 4.08 | 31,708 |
| World Cities by Clue #1 | 0 | - | 4.30 | 74,263 |
| World Cities by Clue Quiz #3 | 0 | - | 4.31 | 48,624 |
| World Cities by Clue Quiz #4 | 0 | - | 4.41 | 24,046 |
| Countries with Four Letters | 0 | - | 4.99 | 424,882 |
| 4-Letter Geography Chain #1 | 0 | - | 4.82 | 170,587 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,218 |
| Name a Valid World City | 0 | - | 4.84 | 71,743 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 65,417 |
| Scientific Names | 0 | - | 4.32 | 78,660 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,870 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 32,071 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 189,504 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,732 |
| Body Part Cliches | 0 | - | 4.44 | 123,617 |
| Bones of the Human Body | 0 | - | 4.51 | 43,357 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,751 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 737,484 |
| Fruits: No Vowels | 0 | - | 4.81 | 100,238 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 306,135 |
| Islands by Country #1 | 0 | - | 4.90 | 175,983 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,040 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,380 |
| Regions of Countries #3 | 0 | - | 4.85 | 91,248 |
| Famous Jewish People | 0 | - | 3.98 | 40,427 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,652 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 115,155 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,612 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 184,009 |
| Cities by Wikipedia Descriptions #1 | 0 | - | 4.52 | 55,550 |
| Cities by Wikipedia Descriptions #3 | 0 | - | 4.58 | 47,847 |
| Country Chain | 0 | - | 4.96 | 218,042 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 218,213 |
| Cold War Decoder | 0 | - | 4.83 | 52,535 |
| Eight Most Popular Berries | 0 | - | 4.43 | 99,773 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.45 | 68,186 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,725 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 50,298 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 322,880 |
| Name a Valid Country #3 | 0 | - | 4.99 | 265,155 |
| Name a Valid Country #1 | 0 | - | 4.99 | 293,802 |
| Name a Valid Country #2 | 0 | - | 4.98 | 253,215 |
| Name a Valid Country #4 | 0 | - | 4.97 | 258,262 |
| Name a Valid Country #5 | 0 | - | 4.99 | 209,193 |
| Name a Valid Country #6 | 0 | - | 4.95 | 141,802 |
| Name a Valid Country #7 | 0 | - | 4.91 | 131,085 |
| Name a Valid Country #8 | 0 | - | 4.86 | 100,301 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 76,465 |
| Name a Valid Country #10 | 0 | - | 4.93 | 43,855 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,469 |
| Random Geographic Groups of Seven | 0 | - | 4.92 | 46,590 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,406 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,879 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,885 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,715 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 152,316 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 36,114 |
| Environmental Issues | 0 | - | 4.54 | 26,887 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,654 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,612 |
| Chuck Norris Facts | 0 | - | 4.52 | 8,616 |
| People With Place Names | 0 | - | 4.01 | 39,801 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.61 | 46,177 |
| Shared First Names #2 | 0 | - | 4.53 | 45,777 |
| People with J Initials | 0 | - | 4.51 | 55,554 |
| History Analogies #1 | 0 | - | 4.53 | 90,136 |
| History Analogies #2 | 0 | - | 4.49 | 77,372 |
| History Analogies #3 | 0 | - | 4.61 | 80,829 |
| Movie Title Antonyms #1 | 0 | - | 4.81 | 196,628 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 62,219 |
| English Idioms #1 | 0 | - | 4.45 | 146,241 |
| Cliche Quotes Quiz #2 | 0 | - | 4.42 | 45,480 |
| Clothing Idioms | 0 | - | 4.41 | 34,289 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 323,787 |
| African-American Historical Figures | 0 | - | 4.18 | 17,252 |
| Famous People from South America | 0 | - | 4.15 | 22,049 |
| Famous Caribbean People | 0 | - | 4.37 | 12,649 |
| Are You a Nerd? | 0 | - | 4.35 | 45,071 |
| The Eleven Colors | 0 | - | 4.74 | 235,751 |
| Groups of Things - History #1 | 0 | - | 4.41 | 94,377 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,492 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,554 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 80,802 |
| U.S. Cities by Clue #3 | 0 | - | 4.14 | 28,372 |
| Cities that End in L by Clue | 0 | - | 4.24 | 21,110 |
| Smaller Cities That You May Know | 0 | - | 4.35 | 28,514 |
| King in the Answers | 0 | - | 4.42 | 50,309 |
| Super in the Answers | 0 | - | 4.52 | 110,630 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,615 |
| Five Letter Geography #3 | 0 | - | 4.62 | 131,820 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,875 |
| Six Letter Geography #2 | 0 | - | 4.68 | 67,825 |
| Six Letter Geography #3 | 0 | - | 4.52 | 81,898 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 76,150 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 38,451 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,650 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,907 |
| Five Letter Geography #4 | 0 | - | 4.78 | 85,170 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,675 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 125,007 |
| Random Countries by Borders | 0 | - | 4.99 | 82,867 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 140,792 |
| Random History by Country | 0 | - | 4.53 | 34,970 |
| Random Name a Valid Country | 0 | - | 4.99 | 206,079 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 139,401 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 386,309 |
| Random Point on Land to Country | 0 | - | 4.99 | 236,583 |
| Geography Decoder | 0 | - | 4.53 | 75,782 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,784 |
| Letter A Geography Chain | 0 | - | 4.54 | 67,696 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,401 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,570 |
| Fruits by Picture | 0 | - | 4.19 | 808,638 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,545 |
| Answers are Beverages | 0 | - | 4.06 | 61,508 |
| Basic Cake Ingredients | 0 | - | 4.23 | 110,613 |
| Types of Food | 0 | - | 4.25 | 90,224 |
| The Foods they Ate | 0 | - | 4.03 | 69,542 |
| Animals Used in Food | 0 | - | 4.28 | 78,339 |
| Most Popular Fruits | 0 | - | 4.16 | 96,864 |
| Healthiest Fruits and Vegetables | 0 | - | 4.02 | 46,875 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 85,506 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,630 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 62,075 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 237,514 |
