| Random Symbol to Element | 0 | - | 4.88 | 92,382 |
| Science General Knowledge #1 | 0 | - | 4.54 | 163,843 |
| Science General Knowledge #2 | 0 | - | 4.48 | 117,074 |
| Science General Knowledge #3 | 0 | - | 4.55 | 99,567 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 68,176 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,091,027 |
| Random Geography General Knowledge Quiz | 0 | - | 4.46 | 134,689 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,092,093 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 113,822 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 214,332 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 45,361 |
| International Scientific Units | 0 | - | 4.95 | 155,680 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,355 |
| Word Chain - Science | 0 | - | 4.59 | 54,461 |
| Random General Knowledge - Countries | 0 | - | 4.33 | 88,439 |
| Random Countries by Borders | 0 | - | 4.99 | 81,794 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 137,607 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,551 |
| Random Point on Land to Country | 0 | - | 4.99 | 232,368 |
| Random Countries on a Topological Map | 0 | - | 4.90 | 51,365 |
| Country Quiz on a Map - USA | 0 | - | 4.98 | 57,020 |
| First Names of Scientists | 0 | - | 4.50 | 56,563 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,225,045 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,853 |
| Periodic Table Elements A-Z | 0 | - | 4.78 | 102,330 |
| Name a Valid Element | 0 | - | 4.64 | 69,669 |
| Geography General Knowledge #1 | 0 | - | 4.43 | 261,909 |
| Geography General Knowledge #3 | 0 | - | 4.54 | 132,116 |
| Geography General Knowledge #4 | 0 | - | 4.49 | 185,861 |
| Geography General Knowledge #6 | 0 | - | 4.53 | 151,218 |
| Geography General Knowledge #7 | 0 | - | 4.44 | 158,606 |
| Geography General Knowledge #8 | 0 | - | 4.45 | 149,662 |
| Geography General Knowledge #10 | 0 | - | 4.47 | 156,155 |
| Geography General Knowledge #11 | 0 | - | 4.52 | 109,753 |
| Geography General Knowledge #12 | 0 | - | 4.80 | 123,929 |
| Geography General Knowledge #13 | 0 | - | 4.63 | 67,482 |
| History General Knowledge #1 | 0 | - | 4.55 | 127,571 |
| History General Knowledge #3 | 0 | - | 4.50 | 95,928 |
| History General Knowledge #6 | 0 | - | 4.49 | 88,608 |
| History General Knowledge #10 | 0 | - | 4.43 | 77,513 |
| History General Knowledge #11 | 0 | - | 4.45 | 72,246 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,107 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 108,329 |
| Random Countries with Letters Missing | 0 | - | 4.51 | 93,680 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 135,476 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 379,565 |
| Groups of Two - Science | 0 | - | 4.26 | 48,167 |
| Science Decoder | 0 | - | 4.52 | 28,669 |
| Elements by Symbol | 0 | - | 4.92 | 195,889 |
| Speed Symbol by Element | 0 | - | 4.91 | 103,841 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 93,595 |
| Noble Gases | 0 | - | 4.89 | 77,593 |
| Elements that are Gases at Room Temperature | 0 | - | 4.86 | 64,158 |
| Periodic Table Symbols | 0 | - | 4.97 | 71,206 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 81,057 |
| Name the Virus | 0 | - | 4.86 | 76,412 |
| Bread Alone | 0 | - | 4.48 | 27,030 |
| Word Scramble - Random Animals | 0 | - | 4.41 | 48,959 |
| Country Decoders #1 | 0 | - | 4.44 | 43,577 |
| Answers are Elements #1 | 0 | - | 4.30 | 52,717 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 175,940 |
| Three Letter Body Parts | 0 | - | 4.40 | 205,352 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 87,856 |
| Geography General Knowledge #2 | 0 | - | 4.38 | 179,947 |
| Geography General Knowledge #5 | 0 | - | 4.34 | 148,259 |
| Geography General Knowledge #9 | 0 | - | 4.39 | 131,322 |
| History General Knowledge #5 | 0 | - | 4.39 | 106,150 |
| History General Knowledge #7 | 0 | - | 4.35 | 88,205 |
| History General Knowledge #8 | 0 | - | 4.32 | 83,669 |
| History General Knowledge #9 | 0 | - | 4.40 | 79,583 |
| History General Knowledge #12 | 0 | - | 4.32 | 66,940 |
| History General Knowledge #2 | 0 | - | 4.32 | 112,555 |
| History General Knowledge #4 | 0 | - | 4.33 | 110,269 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 79,975 |
| Famous Scientists | 0 | - | 4.57 | 42,502 |
| Citrus Fruits | 0 | - | 3.63 | 41,973 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,676 |
| Elemental Words | 0 | - | 4.96 | 52,053 |
| Metals of Antiquity | 0 | - | 4.94 | 93,020 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,317 |
| Astronomy Decoder | 0 | - | 4.50 | 37,886 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,210 |
| Best-Selling Video Game Consoles | 0 | - | 4.81 | 270,658 |
| How Do You Like Them Apples? | 0 | - | 4.31 | 22,989 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,664 |
| Astronomy Quiz | 0 | - | 4.90 | 81,916 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 136,033 |
| Solar System Trivia | 0 | - | 4.93 | 46,173 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,594,809 |
| Italian Name Translation | 0 | - | 4.81 | 45,483 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 110,111 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,684 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 116,559 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,492 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 107,979 |
| April Fools' Quiz #1 | 0 | - | 3.83 | 59,736 |
| April Fools' Quiz #2 | 0 | - | 3.40 | 48,782 |
| U.S. Geography General Knowledge #4 | 0 | - | 4.29 | 31,806 |
| U.S. Geography General Knowledge #3 | 0 | - | 4.15 | 34,804 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,057 |
| Random Geographic Groups of Six | 0 | - | 4.40 | 49,520 |
| 4-Letter Geography Chain #1 | 0 | - | 4.82 | 169,358 |
| Random Country Dots on an Empty World Map | 0 | - | 4.73 | 102,719 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,612 |
| Name a Valid World City | 0 | - | 4.83 | 70,329 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,467 |
| Scientific Names | 0 | - | 4.32 | 78,223 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,138 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,930 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.72 | 187,619 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,260 |
| Body Part Cliches | 0 | - | 4.43 | 123,140 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 215,064 |
| Bones of the Human Body | 0 | - | 4.52 | 40,717 |
| Medical Conditions Quiz | 0 | - | 4.78 | 123,403 |
| 7 Deadly Sins | 0 | - | 4.88 | 396,043 |
| Fast Math - Addition | 0 | - | 4.87 | 520,638 |
| Disney Animated Characters | 0 | - | 4.88 | 599,693 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,300 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,324 |
| Countries with Four Letters | 0 | - | 4.99 | 419,302 |
| Random Capital to Country | 0 | - | 4.99 | 2,580,612 |
| Random Country to Capital | 0 | - | 4.98 | 913,173 |
| Random Cities on a World Map | 0 | - | 4.25 | 44,460 |
| Eight Most Popular Berries | 0 | - | 4.43 | 98,820 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.44 | 67,183 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 713,335 |
| Fruits: No Vowels | 0 | - | 4.81 | 98,798 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 303,200 |
| Islands by Country #1 | 0 | - | 4.87 | 174,621 |
| Regions of Countries #1 | 0 | - | 4.97 | 159,029 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,371 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,405 |
| U.S. Geography General Knowledge #1 | 0 | - | 4.14 | 28,576 |
| U.S. Geography General Knowledge #2 | 0 | - | 4.27 | 24,619 |
| Country Decoders #2 | 0 | - | 4.12 | 26,750 |
| Countries with Shortest Maximum Distances to the Ocean | 0 | - | 4.13 | 30,888 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,589 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,698 |
| Country Chain | 0 | - | 4.96 | 215,994 |
| Cold War Decoder | 0 | - | 4.83 | 52,015 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,572 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 49,683 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 317,637 |
| Name a Valid Country #3 | 0 | - | 4.99 | 260,243 |
| Name a Valid Country #1 | 0 | - | 4.99 | 284,566 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,950 |
| Name a Valid Country #4 | 0 | - | 4.97 | 252,317 |
| Name a Valid Country #5 | 0 | - | 4.99 | 190,254 |
| Name a Valid Country #6 | 0 | - | 4.94 | 126,778 |
| Name a Valid Country #7 | 0 | - | 4.91 | 126,847 |
| Name a Valid Country #8 | 0 | - | 4.85 | 96,363 |
| Random Name a Valid Bordering Country | 0 | - | 4.99 | 74,484 |
| Name a Valid Country #10 | 0 | - | 4.93 | 41,674 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,262 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,167 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,344 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,075 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,462 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,378 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 150,976 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,713 |
| Environmental Issues | 0 | - | 4.54 | 26,747 |
| Chuck Norris Facts | 0 | - | 4.51 | 8,128 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,101 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,412 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.63 | 45,238 |
| Shared First Names #2 | 0 | - | 4.53 | 45,064 |
| People with J Initials | 0 | - | 4.51 | 55,276 |
| History Analogies #1 | 0 | - | 4.53 | 89,816 |
| History Analogies #2 | 0 | - | 4.49 | 77,037 |
| History Analogies #3 | 0 | - | 4.61 | 80,482 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 61,802 |
| Word Scramble - One Word Movies | 0 | - | 3.89 | 19,833 |
| English Idioms #1 | 0 | - | 4.45 | 144,959 |
| Cliche Quotes Quiz #2 | 0 | - | 4.43 | 45,271 |
| Clothing Idioms | 0 | - | 4.41 | 34,086 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,691 |
| Are You a Nerd? | 0 | - | 4.35 | 44,574 |
| The Eleven Colors | 0 | - | 4.73 | 233,521 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,653 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,560 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 77,661 |
| The Only Country ... | 0 | - | 4.91 | 80,114 |
| King in the Answers | 0 | - | 4.42 | 49,707 |
| Super in the Answers | 0 | - | 4.52 | 109,488 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,155 |
| Five Letter Geography #3 | 0 | - | 4.61 | 130,872 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,383 |
| Six Letter Geography #2 | 0 | - | 4.68 | 67,463 |
| Six Letter Geography #3 | 0 | - | 4.52 | 81,495 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 72,113 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 37,762 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,469 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,211 |
| Five Letter Geography #4 | 0 | - | 4.78 | 84,647 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,464 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 122,889 |
| Random History by Country | 0 | - | 4.53 | 34,697 |
| Geography Decoder | 0 | - | 4.53 | 75,397 |
