Logic puzzles, riddles, math puzzles and brainteasers - pzzls.com

Vandaag is het 22 September 2018

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# American History X - logic puzzle

Difficulty:

Rating: 2.9/5.0

 The image on the right hand side refers to an important event in American history. What does it refer to?

# Fake coins - logic puzzle

Difficulty:

Rating: 3.0/5.0

 Suppose you have five bags filled with the same type of coins and a weigthing machine. One of this bags is completely filled with fake coins, the other bags contain only real ones. A real coin weights 10 gram and a fake one 11 gram. What is the minimal number of times you need to use the weighting machine in order to find the bag with the fake coins?

# Also having birthday today? - math puzzle

Difficulty:

Rating: 2.1/5.0

 Out of how many people should a group at least consist in order to have that the probability that two persons out of that group are having birthday on the same day, is larger than 1/2?

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