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?
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# Thousand monkeys - math puzzle of the day

Monkey 1 presses all switches that are a multiple of 1.

Monkey 2 presses all switches that are a multiple of 2.

Monkey 3 presses all switches that are a multiple of 3.

Monkey 4 presses all switches that are a multiple of 4.

Etc., etc.

How many lamps are switched on after monkey 1000 pressed his switches? And which lamps are switched on?

# Pzzls top 10

Pzzl

Category

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3. Lockers

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5. Sky theory

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7. The superstitious president

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10. Planting trees

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