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On this site you'll find lots of logic puzzles and riddles, puzzling riddles,
science puzzles and math puzzles and riddles.

Answers and detailed solutions are included.

Do you know other nice brain teasers, riddles or puzzles that should be on the site?
If that's the case, send a message to pzzls!

logic puzzle

Boiling an egg

Suppose you would like to boil an egg for exactly 15 minutes. But you only have two hourglasses, one of zeven and one of eleven minutes. What is the the fastest way to do this?

mail puzzle

rating 2.6/5

answer - solution

puzzle top 10

1.	Einstein's riddle	logic puzzle	rating: 4.0/5


2.	Lockers	math puzzle	rating: 3.6/5


3.	Lost your way	logic puzzle	rating: 3.5/5


4.	Find the way to freedom	logic puzzle	rating: 3.5/5


5.	Divisible from 1 to 9	math puzzle	rating: 3.5/5


6.	Always but never	puzzling puzzle	rating: 3.4/5


7.	The superstitious president	logic puzzle	rating: 3.4/5


8.	The entire universe	puzzling puzzle	rating: 3.4/5


9.	Bob and John	math puzzle	rating: 3.4/5


10.	Dots and lines	logic puzzle	rating: 3.4/5

Last changed 21-07-2008