| Random Symbol to Element | 0 | - | 4.88 | 92,189 |
| 4-Letter Geography Chain #1 | 0 | - | 4.82 | 169,140 |
| Word Scramble - Body Parts | 0 | - | 4.38 | 175,766 |
| Three Letter Body Parts | 0 | - | 4.39 | 204,876 |
| One-Syllable Human Body Parts | 0 | - | 4.29 | 87,692 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,090,381 |
| Country Chain | 0 | - | 4.96 | 215,655 |
| Body Parts in History and Culture | 0 | - | 4.42 | 35,074 |
| International Scientific Units | 0 | - | 4.95 | 155,248 |
| Electromagnetic Spectrum | 0 | - | 4.93 | 62,162 |
| Science General Knowledge #1 | 0 | - | 4.54 | 163,388 |
| Science General Knowledge #2 | 0 | - | 4.47 | 116,591 |
| Science General Knowledge #3 | 0 | - | 4.55 | 99,162 |
| Word Chain - Science | 0 | - | 4.59 | 54,378 |
| Most Common Elements in the Human Body | 0 | - | 4.74 | 150,573 |
| First Names of Scientists | 0 | - | 4.50 | 56,443 |
| Elements of the Periodic Table | 0 | - | 5.00 | 2,219,221 |
| Answers are Elements #2 | 0 | - | 4.43 | 54,822 |
| Periodic Table Elements A-Z | 0 | - | 4.78 | 102,169 |
| Name a Valid Element | 0 | - | 4.64 | 69,551 |
| Songs with Body Parts in the Title | 0 | - | 4.31 | 214,522 |
| 4-Letter Music Chain | 0 | - | 4.48 | 53,024 |
| 4-Letter Geography Chain #2 | 0 | - | 4.53 | 87,191 |
| 4-Letter History Chain #1 | 0 | - | 4.41 | 84,710 |
| 5-Letter History Chain #3 | 0 | - | 4.47 | 66,089 |
| 6-Letter History Chain #2 | 0 | - | 4.53 | 57,235 |
| 5-Letter History Chain #1 | 0 | - | 4.54 | 101,791 |
| 4-Letter Movie Chain #3 | 0 | - | 4.50 | 59,247 |
| Cities Chain #2 | 0 | - | 4.42 | 56,158 |
| Cities Chain #1 | 0 | - | 4.61 | 66,334 |
| Word Chain - Christmas | 0 | - | 4.51 | 50,385 |
| Groups of Two - Science | 0 | - | 4.26 | 48,132 |
| Science Decoder | 0 | - | 4.52 | 28,643 |
| Elements by Symbol | 0 | - | 4.92 | 195,417 |
| Speed Symbol by Element | 0 | - | 4.91 | 103,565 |
| Chemical Elements with Short Names | 0 | - | 4.81 | 93,410 |
| Noble Gases | 0 | - | 4.89 | 77,411 |
| Elements that are Gases at Room Temperature | 0 | - | 4.85 | 64,023 |
| Periodic Table Symbols | 0 | - | 4.97 | 70,848 |
| Elements with One-Letter Symbols | 0 | - | 4.83 | 80,833 |
| Name the Virus | 0 | - | 4.86 | 76,216 |
| Body Part Words | 0 | - | 4.43 | 145,186 |
| Human Body A-Z | 0 | - | 4.51 | 128,319 |
| Answers are Elements #1 | 0 | - | 4.30 | 52,695 |
| Animal Anatomy Quiz | 0 | - | 4.38 | 59,645 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 118,297 |
| 5-Letter Geography Chain #1 | 0 | - | 4.21 | 130,684 |
| 5-Letter Geography Chain #2 | 0 | - | 4.39 | 126,424 |
| 6-Letter Geography Chain #1 | 0 | - | 4.27 | 95,754 |
| 4-Letter Movie Chain #1 | 0 | - | 4.36 | 109,256 |
| 5-Letter Movie Chain #1 | 0 | - | 4.05 | 68,314 |
| 5-Letter Music Chain | 0 | - | 4.12 | 84,628 |
| 6-Letter Geography Chain #2 | 0 | - | 4.40 | 70,858 |
| 5-Letter Geography Chain #3 | 0 | - | 4.25 | 73,286 |
| 5-Letter History Chain #2 | 0 | - | 4.25 | 68,753 |
| 6-Letter History Chain #1 | 0 | - | 4.28 | 69,778 |
| 4-Letter History Chain #2 | 0 | - | 4.35 | 58,020 |
| 4-Letter History Chain #3 | 0 | - | 4.38 | 60,024 |
| 5-Letter Movie Chain #2 | 0 | - | 4.32 | 48,214 |
| 5-Letter Movie Chain #3 | 0 | - | 4.33 | 38,965 |
| 4-Letter Movie Chain #2 | 0 | - | 4.36 | 56,429 |
| Word Chain - Africa | 0 | - | 4.47 | 31,435 |
| Halloween Word Chain | 0 | - | 4.12 | 37,417 |
| Major Taxonomic Ranks | 0 | - | 4.63 | 79,781 |
| Famous Scientists | 0 | - | 4.57 | 42,435 |
| Citrus Fruits | 0 | - | 3.65 | 41,945 |
| Things Named For People #3 - Science | 0 | - | 4.85 | 53,566 |
| Elemental Words | 0 | - | 4.96 | 51,969 |
| Metals of Antiquity | 0 | - | 4.94 | 92,875 |
| Category Elimination - Elements | 0 | - | 4.62 | 53,210 |
| Astronomy Decoder | 0 | - | 4.50 | 37,831 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,153 |
| Best-Selling Video Game Consoles | 0 | - | 4.81 | 269,443 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,448 |
| Astronomy Quiz | 0 | - | 4.89 | 81,646 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 135,685 |
| Solar System Trivia | 0 | - | 4.93 | 45,983 |
| Body Parts - No Vowels | 0 | - | 4.15 | 25,068 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,586,205 |
| Songs that Start with the Same Word | 0 | - | 4.87 | 109,888 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,053 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 116,021 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,180 |
| Geography Quiz for Dummies | 0 | - | 4.87 | 107,773 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,775 |
| 5-Letter Literature Chain | 0 | - | 4.29 | 54,604 |
| 4-Letter Literature Chain | 0 | - | 4.39 | 42,224 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,520 |
| Disney Character Chain | 0 | - | 4.10 | 30,560 |
| Word Chain - Asia | 0 | - | 4.34 | 29,217 |
| Baseball Word Chain | 0 | - | 4.17 | 16,115 |
| Name a Valid World City | 0 | - | 4.83 | 70,082 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,763 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,132 |
| Scientific Names | 0 | - | 4.32 | 78,139 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,015 |
| Lightest Chemical Elements A-Z | 0 | - | 4.57 | 31,900 |
| Periodic Table Quiz - First 20 Elements | 0 | - | 4.72 | 187,209 |
| Periodic Table Elements by Clue #1 | 0 | - | 4.80 | 62,177 |
| Body Part Cliches | 0 | - | 4.43 | 123,009 |
| Medical Conditions Quiz | 0 | - | 4.78 | 123,066 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,357 |
| 7 Deadly Sins | 0 | - | 4.88 | 394,679 |
| Disney Animated Characters | 0 | - | 4.88 | 598,967 |
| Conspiracy Theories – Mostly U.S. | 0 | - | 4.44 | 56,229 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,652 |
| Countries with Four Letters | 0 | - | 4.99 | 418,364 |
| Word Chain - South America | 0 | - | 4.51 | 23,759 |
| Eight Most Popular Berries | 0 | - | 4.43 | 98,539 |
| Top 20 Fruits Sold in the U.S. | 0 | - | 4.44 | 66,953 |
| Most Common Body Part Words | 0 | - | 3.90 | 31,505 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 711,133 |
| Fruits: No Vowels | 0 | - | 4.81 | 98,476 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 302,618 |
| Islands by Country #1 | 0 | - | 4.87 | 174,449 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,882 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,255 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,318 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 113,601 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,252 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,381 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,690 |
| Cold War Decoder | 0 | - | 4.83 | 51,903 |
| Capital Cities Chain | 0 | - | 4.84 | 81,881 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,356 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 49,588 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,865 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,721 |
| Name a Valid Country #1 | 0 | - | 4.99 | 283,272 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,296 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,453 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,708 |
| Name a Valid Country #6 | 0 | - | 4.94 | 126,327 |
| Name a Valid Country #7 | 0 | - | 4.91 | 126,398 |
| Name a Valid Country #8 | 0 | - | 4.85 | 95,945 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,232 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 45,172 |
| Science Vocabulary #2 | 0 | - | 4.52 | 59,237 |
| Simple Machines Quiz | 0 | - | 4.35 | 9,059 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,346 |
| Science Multiple Choice #2 | 0 | - | 4.40 | 36,326 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,619 |
| Environmental Issues | 0 | - | 4.54 | 26,716 |
| Chuck Norris Facts | 0 | - | 4.50 | 8,034 |
| Two Letter Answers #2 | 0 | - | 4.43 | 86,010 |
| One Letter Answers #1 | 0 | - | 4.47 | 77,380 |
| Guess a Top 5 Last Name by Country | 0 | - | 4.64 | 45,094 |
| Shared First Names #2 | 0 | - | 4.53 | 44,971 |
| People with J Initials | 0 | - | 4.51 | 55,208 |
| History Analogies #1 | 0 | - | 4.53 | 89,767 |
| History Analogies #2 | 0 | - | 4.49 | 76,986 |
| History Analogies #3 | 0 | - | 4.61 | 80,420 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 61,733 |
| English Idioms #1 | 0 | - | 4.45 | 144,247 |
| Cliche Quotes Quiz #2 | 0 | - | 4.43 | 45,226 |
| Clothing Idioms | 0 | - | 4.41 | 34,052 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,259 |
| Are You a Nerd? | 0 | - | 4.35 | 44,493 |
| The Eleven Colors | 0 | - | 4.73 | 233,241 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,393 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,424 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 77,115 |
| The Only Country ... | 0 | - | 4.91 | 79,816 |
| King in the Answers | 0 | - | 4.42 | 49,611 |
| Super in the Answers | 0 | - | 4.52 | 109,326 |
| Four Letter Geography #1 | 0 | - | 4.69 | 89,080 |
| Five Letter Geography #3 | 0 | - | 4.61 | 130,745 |
| Six Letter Geography #1 | 0 | - | 4.42 | 114,301 |
| Six Letter Geography #2 | 0 | - | 4.69 | 67,399 |
| Six Letter Geography #3 | 0 | - | 4.53 | 81,423 |
| Seven Letter Geography #1 | 0 | - | 4.52 | 71,969 |
| Seven Letter Geography #3 | 0 | - | 4.50 | 37,659 |
| Eight Letter Geography #1 | 0 | - | 4.45 | 38,445 |
| 5-Letter American TV Chain | 0 | - | 3.76 | 12,177 |
| 4-Letter American TV Chain | 0 | - | 3.83 | 18,257 |
| Five Letter Geography #1 | 0 | - | 4.48 | 151,109 |
| Five Letter Geography #4 | 0 | - | 4.78 | 84,571 |
| Five Letter Geography - Hero Mode | 0 | - | 4.63 | 35,434 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 122,382 |
| Random Countries by Borders | 0 | - | 4.99 | 81,634 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 136,761 |
| Random History by Country | 0 | - | 4.53 | 34,650 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,153 |
| Geography Decoder | 0 | - | 4.53 | 75,333 |
| Continental Geography Decoder | 0 | - | 4.46 | 52,372 |
| Love Chain Quiz | 0 | - | 3.98 | 30,170 |
| Letter A Geography Chain | 0 | - | 4.53 | 67,309 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,063 |
| Fruit & Vegetable Varieties Quiz | 0 | - | 4.30 | 58,102 |
| Fruits by Picture | 0 | - | 4.20 | 804,501 |
| Plants as Key Ingredient | 0 | - | 4.40 | 46,152 |
| Answers are Beverages | 0 | - | 4.10 | 61,040 |
| Basic Cake Ingredients | 0 | - | 4.22 | 109,739 |
| Types of Food | 0 | - | 4.24 | 89,116 |
| The Foods they Ate | 0 | - | 4.03 | 69,187 |
| Animals Used in Food | 0 | - | 4.29 | 77,620 |
| Most Popular Fruits | 0 | - | 4.16 | 96,194 |
| Healthiest Fruits and Vegetables | 0 | - | 4.04 | 46,635 |
| 10 Most Popular Pizza Toppings | 0 | - | 4.06 | 84,688 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,377 |
