{
 "source": "https://peabody.kids/flashcards/fun-logic-brain-teasers",
 "id": "fun-logic-brain-teasers",
 "title": "Brain Teasers and Logic Puzzles",
 "category": "trivia-fun",
 "subject": "Puzzles",
 "levels": [
  "3-5",
  "6-8",
  "9-12",
  "adult"
 ],
 "description": "Short puzzles that need clear thinking. Try before flipping.",
 "tags": [
  "puzzles",
  "logic",
  "brain teasers"
 ],
 "frontLabel": "Puzzle",
 "backLabel": "Answer",
 "cards": [
  [
   "A farmer has 17 sheep. All but 9 run away. How many are left?",
   "9"
  ],
  [
   "Some months have 31 days. How many have 28?",
   "All twelve"
  ],
  [
   "If you have only one match and enter a dark room with a candle, a lamp and a fireplace, what do you light first?",
   "The match"
  ],
  [
   "How many times can you subtract 5 from 25?",
   "Once, because after that it is 20, not 25"
  ],
  [
   "Which weighs more, a pound of feathers or a pound of bricks?",
   "They weigh the same"
  ],
  [
   "A rooster lays an egg on top of a barn roof. Which way does it roll?",
   "Roosters don't lay eggs"
  ],
  [
   "What is half of two plus two?",
   "Three (half of two is 1, plus 2)"
  ],
  [
   "How many animals of each kind did Moses take on the ark?",
   "None, it was Noah"
  ],
  [
   "Divide 30 by half and add 10. What is the answer?",
   "70"
  ],
  [
   "There are 3 apples and you take away 2. How many do you have?",
   "2"
  ],
  [
   "A bat and ball cost $1.10 total. The bat costs $1 more than the ball. How much is the ball?",
   "5 cents"
  ],
  [
   "If 5 machines make 5 widgets in 5 minutes, how long for 100 machines to make 100 widgets?",
   "5 minutes"
  ],
  [
   "What number comes next? 2, 4, 8, 16, ...",
   "32"
  ],
  [
   "What number comes next? 1, 1, 2, 3, 5, 8, ...",
   "13 (the Fibonacci numbers)"
  ],
  [
   "What number comes next? 1, 4, 9, 16, ...",
   "25 (square numbers)"
  ],
  [
   "What number comes next? 3, 6, 9, 12, ...",
   "15"
  ],
  [
   "What letter comes next? O, T, T, F, F, S, S, ...",
   "E (One, Two, Three, Four, Five, Six, Seven, Eight)"
  ],
  [
   "What letter comes next? J, F, M, A, M, J, ...",
   "J (months of the year: July)"
  ],
  [
   "Mary's father has five daughters: Nana, Nene, Nini, Nono, and who?",
   "Mary"
  ],
  [
   "A man is looking at a photo. 'Brothers and sisters, I have none, but that man's father is my father's son.' Who is in the photo?",
   "His son"
  ],
  [
   "You are in a race and pass the person in second place. What place are you in?",
   "Second"
  ],
  [
   "Two coins add up to 30 cents and one of them is not a nickel. What are they?",
   "A quarter and a nickel (one of them, the quarter, is not a nickel)"
  ],
  [
   "What can be broken without being touched?",
   "A promise"
  ],
  [
   "If a red house is made of red bricks and a blue house of blue bricks, what is a greenhouse made of?",
   "Glass"
  ],
  [
   "A clock strikes 6 in 5 seconds. How long to strike 12?",
   "11 seconds (count the gaps)"
  ],
  [
   "There are 3 boxes labeled apples, oranges, and both, all labeled wrong. You pick one fruit from one box. Which box?",
   "The box labeled 'both'"
  ],
  [
   "A snail climbs 3 feet up a 10-foot wall each day and slips back 2 feet each night. When does it reach the top?",
   "On day 8"
  ],
  [
   "If it takes 3 people 3 hours to dig 3 holes, how long for 1 person to dig 1 hole?",
   "3 hours"
  ],
  [
   "Tom's mother has 4 children: April, May, June and who?",
   "Tom"
  ],
  [
   "How many two-cent stamps are in a dozen?",
   "Twelve"
  ],
  [
   "What is 100 divided by 2, then plus 1, then divided by 3?",
   "17"
  ],
  [
   "The more you take, the more you leave behind. What are they?",
   "Footsteps"
  ],
  [
   "How can you make the number 7 even without adding or subtracting?",
   "Take away the S: seven becomes even"
  ],
  [
   "Which is bigger, 0.5 or 0.45?",
   "0.5"
  ],
  [
   "What is the next shape? circle, square, triangle, circle, square, ...",
   "Triangle"
  ],
  [
   "Five people shake hands once each with every other person. How many handshakes?",
   "10"
  ],
  [
   "A father is 4 times as old as his son. In 20 years he will be twice as old. How old is the son now?",
   "10 years old"
  ],
  [
   "Which is heavier, a ton of coal or a ton of cotton?",
   "Same"
  ],
  [
   "Which number is missing? 2, 3, 5, 7, 11, __, 17",
   "13 (prime numbers)"
  ],
  [
   "What are the next two letters? A, C, E, G, I, __, __",
   "K and M"
  ],
  [
   "How can two girls be born to the same mother on the same day at the same time and not be twins?",
   "They are part of triplets (or more)"
  ],
  [
   "Two fathers and two sons go fishing and each catch one fish, but only three fish are caught. How?",
   "There are three people: a grandfather, father and son"
  ],
  [
   "What goes up when rain comes down?",
   "An umbrella"
  ],
  [
   "What word is spelled wrong in every dictionary?",
   "Wrong"
  ],
  [
   "What is the smallest three-digit number using different digits?",
   "102"
  ],
  [
   "If you have 3 quarters, 4 dimes and 5 nickels, how many coins do you have?",
   "12"
  ],
  [
   "Which is bigger, 1/2 or 1/3?",
   "1/2"
  ]
 ]
}