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

Vandaag is het 20 February 2019

Sort - Least popuplar on top
Page: << 11 12 13 14 15 >>

# Sequences - math puzzle

Difficulty:

Rating: 3.0/5.0

What are the next numbers in the following sequences?
a: 77, 143, 221, 323, 437
b: 1, 5, 32, 288, 3413
c: 827, 23, 11, 6, 3
d: 2, 3, 5, 11, 31
e: 100, 121, 144, 202, 244

# Light a candle - math puzzle

Difficulty:

Rating: 3.1/5.0

 In a group of 200 people, everybody has a non burning candle. On person has a match at lights at some moment his candle. With this candle he walks to somebody else and lights a new candle. Then everybody with a burning candle will look for somebody without a burning candle, and if found they will light it. This will continue until all candles are lit. Suppose that from the moment a candle is lit it takes exactly 30 seconds to find a person with a non burning candle and light that candle. From the moment the first candle is lit, how long does it take before all candles are lit?

# Beach walk - math puzzle

Difficulty:

Rating: 3.1/5.0