| Random Symbol to Element | 0 | - | 4.88 | 93,876 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,102,150 |
| The Only Country ... | 0 | - | 4.91 | 81,839 |
| Science General Knowledge #1 | 0 | - | 4.54 | 167,285 |
| Science General Knowledge #2 | 0 | - | 4.48 | 119,638 |
| Science General Knowledge #3 | 0 | - | 4.56 | 109,552 |
| Word Chain - Science | 0 | - | 4.59 | 55,134 |
| International Scientific Units | 0 | - | 4.95 | 158,249 |
| First Names of Scientists | 0 | - | 4.51 | 57,197 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 63,242 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,259,229 |
| Answers are Elements #2 | 0 | - | 4.43 | 55,194 |
| Periodic Table Elements A-Z | 0 | - | 4.77 | 103,446 |
| Name a Valid Element | 0 | - | 4.67 | 70,395 |
| Medical Acronyms | 0 | - | 4.43 | 97,221 |
| Medical Vocabulary | 0 | - | 4.54 | 59,459 |
| Groups of Two - Science | 0 | - | 4.26 | 48,450 |
| Science Decoder | 0 | - | 4.52 | 28,855 |
| Elements by Symbol | 0 | - | 4.92 | 198,568 |
| Speed Symbol by Element | 0 | - | 4.90 | 105,517 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 94,754 |
| Noble Gases | 0 | - | 4.89 | 78,800 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 65,035 |
| Periodic Table Symbols | 0 | - | 4.98 | 80,153 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 82,372 |
| Body Part Words | 0 | - | 4.43 | 146,362 |
| Name the Virus | 0 | - | 4.87 | 77,083 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.70 | 58,206 |
| Answers are Elements #1 | 0 | - | 4.29 | 52,961 |
| Category Elimination - Elements | 0 | - | 4.61 | 54,084 |
| Astronomy Decoder | 0 | - | 4.48 | 38,213 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 177,033 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,885 |
| One-Syllable Human Body Parts | 0 | - | 4.30 | 88,519 |
| Medical Specialties | 0 | - | 4.33 | 92,292 |
| Famous People from Africa | 0 | - | 4.45 | 10,999 |
| World Cities by Clue #2 | 0 | - | 4.49 | 50,410 |
| Cities that End in A by Clue | 0 | - | 4.55 | 53,182 |
| Cities that End in O by Clue | 0 | - | 4.56 | 61,456 |
| Cities that End in N by Clue | 0 | - | 4.55 | 54,315 |
| Cities that End in I by Clue | 0 | - | 4.62 | 57,525 |
| Cities that End in S by Clue | 0 | - | 4.57 | 45,130 |
| Citrus Fruits | 0 | - | 3.67 | 42,154 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 54,264 |
| Elemental Words | 0 | - | 4.97 | 52,540 |
| Metals of Antiquity | 0 | - | 4.95 | 93,892 |
| The Diseases They Had | 0 | - | 4.15 | 14,067 |
| Dumb it Down Doc | 0 | - | 4.13 | 65,169 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,650,861 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,722 |
| Best-Selling Video Game Consoles | 0 | - | 4.82 | 277,815 |
| Random Cities by Clue | 0 | - | 4.53 | 42,849 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,959 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 81,112 |
| Famous Scientists | 0 | - | 4.57 | 42,841 |
| Astronomy Quiz | 0 | - | 4.90 | 83,232 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 138,376 |
| Solar System Trivia | 0 | - | 4.93 | 47,124 |
| Songs with Body Parts in the Title | 0 | - | 4.32 | 216,389 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 65,813 |
| Italian Name Translation | 0 | - | 4.83 | 47,898 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 111,480 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,120,834 |
| Solve the Secret Country #1 | 0 | - | 4.93 | 167,998 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 120,255 |
| Anagram Chain - Countries | 0 | - | 4.98 | 117,575 |
| 7 Deadly Sins | 0 | - | 4.88 | 403,869 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 109,271 |
| Famous Catholics | 0 | - | 4.26 | 33,449 |
| Disney Animated Characters | 0 | - | 4.88 | 602,809 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 238,054 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 453,133 |
| Cities that End in R by Clue | 0 | - | 4.68 | 19,059 |
| Cities that End in M by Clue | 0 | - | 4.56 | 21,400 |
| U.S. Cities by Clue #1 | 0 | - | 4.28 | 48,150 |
| U.S. Cities by Clue #2 | 0 | - | 4.08 | 31,719 |
| World Cities by Clue #1 | 0 | - | 4.30 | 74,298 |
| World Cities by Clue Quiz #3 | 0 | - | 4.31 | 48,643 |
| World Cities by Clue Quiz #4 | 0 | - | 4.41 | 24,063 |
| Countries with Four Letters | 0 | - | 4.99 | 425,598 |
| 4-Letter Geography Chain #1 | 0 | - | 4.82 | 170,798 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,287 |
| Name a Valid World City | 0 | - | 4.85 | 71,940 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,937 |
| Scientific Names | 0 | - | 4.32 | 78,718 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,947 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 32,089 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.73 | 189,730 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,803 |
| Body Part Cliches | 0 | - | 4.44 | 123,655 |
| Bones of the Human Body | 0 | - | 4.51 | 43,514 |
| Medical Conditions Quiz | 0 | - | 4.78 | 124,853 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 741,461 |
| Fruits: No Vowels | 0 | - | 4.81 | 100,425 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 306,512 |
| Islands by Country #1 | 0 | - | 4.90 | 176,275 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,193 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,510 |
| Regions of Countries #3 | 0 | - | 4.85 | 91,362 |
| Famous Jewish People | 0 | - | 3.91 | 47,706 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,701 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 115,329 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,915 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 184,315 |
| Cities by Wikipedia Descriptions #1 | 0 | - | 4.52 | 55,591 |
| Cities by Wikipedia Descriptions #3 | 0 | - | 4.58 | 47,882 |
| Country Chain | 0 | - | 4.96 | 218,378 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 218,786 |
| Cold War Decoder | 0 | - | 4.83 | 52,626 |
| Eight Most Popular Berries | 0 | - | 4.43 | 99,888 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.45 | 68,301 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,878 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 50,379 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 323,630 |
| Name a Valid Country #3 | 0 | - | 4.99 | 265,887 |
| Name a Valid Country #1 | 0 | - | 4.99 | 295,032 |
| Name a Valid Country #2 | 0 | - | 4.98 | 254,019 |
| Name a Valid Country #4 | 0 | - | 4.97 | 259,035 |
| Name a Valid Country #5 | 0 | - | 4.99 | 209,907 |
| Name a Valid Country #6 | 0 | - | 4.95 | 144,890 |
| Name a Valid Country #7 | 0 | - | 4.91 | 131,757 |
| Name a Valid Country #8 | 0 | - | 4.86 | 100,883 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 76,720 |
| Name a Valid Country #10 | 0 | - | 4.93 | 44,171 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,498 |
| Random Geographic Groups of Seven | 0 | - | 4.92 | 46,749 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,432 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,938 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,940 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,753 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 152,435 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 36,180 |
| Environmental Issues | 0 | - | 4.54 | 26,905 |
| Chuck Norris Facts | 0 | - | 4.52 | 8,675 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,719 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,636 |
| People With Place Names | 0 | - | 4.01 | 39,861 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.61 | 46,287 |
| Shared First Names #2 | 0 | - | 4.53 | 45,861 |
| People with J Initials | 0 | - | 4.51 | 55,597 |
| History Analogies #1 | 0 | - | 4.53 | 90,370 |
| History Analogies #2 | 0 | - | 4.49 | 77,489 |
| History Analogies #3 | 0 | - | 4.61 | 80,932 |
| Movie Title Antonyms #1 | 0 | - | 4.81 | 196,939 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 62,342 |
| English Idioms #1 | 0 | - | 4.45 | 146,459 |
| Cliche Quotes Quiz #2 | 0 | - | 4.42 | 45,539 |
| Clothing Idioms | 0 | - | 4.41 | 34,348 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 324,082 |
| African-American Historical Figures | 0 | - | 4.18 | 17,283 |
| Famous People from South America | 0 | - | 4.15 | 22,095 |
| Famous Caribbean People | 0 | - | 4.37 | 12,657 |
| Are You a Nerd? | 0 | - | 4.35 | 45,134 |
| The Eleven Colors | 0 | - | 4.74 | 235,962 |
| Groups of Things - History #1 | 0 | - | 4.41 | 94,473 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,678 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,680 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 81,208 |
| U.S. Cities by Clue #3 | 0 | - | 4.14 | 28,379 |
| Cities that End in L by Clue | 0 | - | 4.24 | 21,151 |
| Smaller Cities That You May Know | 0 | - | 4.35 | 28,539 |
| King in the Answers | 0 | - | 4.42 | 50,350 |
| Super in the Answers | 0 | - | 4.52 | 110,707 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,687 |
| Five Letter Geography #3 | 0 | - | 4.62 | 131,999 |
| Six Letter Geography #1 | 0 | - | 4.42 | 115,011 |
| Six Letter Geography #2 | 0 | - | 4.68 | 67,957 |
| Six Letter Geography #3 | 0 | - | 4.52 | 82,013 |
| Seven Letter Geography #1 | 0 | - | 4.48 | 80,340 |
| Seven Letter Geography #3 | 0 | - | 4.51 | 38,872 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,726 |
| Five Letter Geography #1 | 0 | - | 4.48 | 152,049 |
| Five Letter Geography #4 | 0 | - | 4.78 | 85,250 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,717 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 125,248 |
| Random Countries by Borders | 0 | - | 4.99 | 83,053 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 141,352 |
| Random History by Country | 0 | - | 4.53 | 34,993 |
| Random Name a Valid Country | 0 | - | 4.99 | 206,540 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 139,862 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 387,518 |
| Random Point on Land to Country | 0 | - | 4.99 | 237,090 |
| Random Countries on a Topological Map | 0 | - | 4.91 | 52,869 |
| Geography Decoder | 0 | - | 4.53 | 75,825 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,818 |
| Letter A Geography Chain | 0 | - | 4.54 | 67,730 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,438 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,609 |
| Fruits by Picture | 0 | - | 4.19 | 809,098 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,569 |
| Answers are Beverages | 0 | - | 4.06 | 61,549 |
| Basic Cake Ingredients | 0 | - | 4.23 | 110,666 |
| Types of Food | 0 | - | 4.25 | 90,287 |
| The Foods they Ate | 0 | - | 4.03 | 69,561 |
| Animals Used in Food | 0 | - | 4.28 | 78,401 |
| Most Popular Fruits | 0 | - | 4.16 | 96,936 |
| Healthiest Fruits and Vegetables | 0 | - | 4.02 | 46,896 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 85,583 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,973 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 62,131 |
