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Brain Teasers and Logic Puzzles

Short puzzles that need clear thinking. Try before flipping.

47 cardsGrades 3–5, Grades 6–8, Grades 9–12, Adult#puzzles#logic#brain teasers

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47 cards
  • A farmer has 17 sheep. All but 9 run away. How many are left?Puzzle
    9
  • Some months have 31 days. How many have 28?Puzzle
    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?Puzzle
    The match
  • How many times can you subtract 5 from 25?Puzzle
    Once, because after that it is 20, not 25
  • Which weighs more, a pound of feathers or a pound of bricks?Puzzle
    They weigh the same
  • A rooster lays an egg on top of a barn roof. Which way does it roll?Puzzle
    Roosters don't lay eggs
  • What is half of two plus two?Puzzle
    Three (half of two is 1, plus 2)
  • How many animals of each kind did Moses take on the ark?Puzzle
    None, it was Noah
  • Divide 30 by half and add 10. What is the answer?Puzzle
    70
  • There are 3 apples and you take away 2. How many do you have?Puzzle
    2
  • A bat and ball cost $1.10 total. The bat costs $1 more than the ball. How much is the ball?Puzzle
    5 cents
  • If 5 machines make 5 widgets in 5 minutes, how long for 100 machines to make 100 widgets?Puzzle
    5 minutes
  • What number comes next? 2, 4, 8, 16, ...Puzzle
    32
  • What number comes next? 1, 1, 2, 3, 5, 8, ...Puzzle
    13 (the Fibonacci numbers)
  • What number comes next? 1, 4, 9, 16, ...Puzzle
    25 (square numbers)
  • What number comes next? 3, 6, 9, 12, ...Puzzle
    15
  • What letter comes next? O, T, T, F, F, S, S, ...Puzzle
    E (One, Two, Three, Four, Five, Six, Seven, Eight)
  • What letter comes next? J, F, M, A, M, J, ...Puzzle
    J (months of the year: July)
  • Mary's father has five daughters: Nana, Nene, Nini, Nono, and who?Puzzle
    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?Puzzle
    His son
  • You are in a race and pass the person in second place. What place are you in?Puzzle
    Second
  • Two coins add up to 30 cents and one of them is not a nickel. What are they?Puzzle
    A quarter and a nickel (one of them, the quarter, is not a nickel)
  • What can be broken without being touched?Puzzle
    A promise
  • If a red house is made of red bricks and a blue house of blue bricks, what is a greenhouse made of?Puzzle
    Glass
  • A clock strikes 6 in 5 seconds. How long to strike 12?Puzzle
    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?Puzzle
    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?Puzzle
    On day 8
  • If it takes 3 people 3 hours to dig 3 holes, how long for 1 person to dig 1 hole?Puzzle
    3 hours
  • Tom's mother has 4 children: April, May, June and who?Puzzle
    Tom
  • How many two-cent stamps are in a dozen?Puzzle
    Twelve
  • What is 100 divided by 2, then plus 1, then divided by 3?Puzzle
    17
  • The more you take, the more you leave behind. What are they?Puzzle
    Footsteps
  • How can you make the number 7 even without adding or subtracting?Puzzle
    Take away the S: seven becomes even
  • Which is bigger, 0.5 or 0.45?Puzzle
    0.5
  • What is the next shape? circle, square, triangle, circle, square, ...Puzzle
    Triangle
  • Five people shake hands once each with every other person. How many handshakes?Puzzle
    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?Puzzle
    10 years old
  • Which is heavier, a ton of coal or a ton of cotton?Puzzle
    Same
  • Which number is missing? 2, 3, 5, 7, 11, __, 17Puzzle
    13 (prime numbers)
  • What are the next two letters? A, C, E, G, I, __, __Puzzle
    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?Puzzle
    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?Puzzle
    There are three people: a grandfather, father and son
  • What goes up when rain comes down?Puzzle
    An umbrella
  • What word is spelled wrong in every dictionary?Puzzle
    Wrong
  • What is the smallest three-digit number using different digits?Puzzle
    102
  • If you have 3 quarters, 4 dimes and 5 nickels, how many coins do you have?Puzzle
    12
  • Which is bigger, 1/2 or 1/3?Puzzle
    1/2

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