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

Vandaag is het 22 October 2018

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# Perfect numbers - math puzzle

Difficulty:

Rating: 2.9/5.0

A perfect number is a number which is equal to the sum of all its divisors. For example 6 is divisable by 1,2,3 and 1 + 2 + 3 = 6. Can you find another perfect number?

# Mirror mirror on the wall - logic puzzle

Difficulty:

Rating: 2.9/5.0

Matthew leaves home in the morning to go to school. At the moment he leaves the house he looks at the clock in the mirror. The clock has no number indication and for this reason the boy makes a mistake in interpreting the time (mirror-image). Just assuming the clock must be out of order, Matthew cycles to school, where he arrives after twenty minutes. At that moment the clock at school shows a time that is two and a half hours later than the time that Matthew saw on the clock at home.

At what time did he reach school?

# Let's go for a hike - math puzzle

Difficulty:

Rating: 2.8/5.0