A SHELL IS TIED TO THE SIDE OF A BOAT THE SHELL HANGS 3 METRES ABOVE WATER LEVEL THE WATER RISES 2 CM IN AN HOUR HOW MUCH TIME WILL IT TAKE BEFORE THE WATER TOUCHES THE RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

They started a crime wave. Did you answer this riddle correctly?
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No one does anything about it because the chemical is water. Did you answer this riddle correctly?
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Because they were all married and not single. Did you answer this riddle correctly?
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To the dock! Did you answer this riddle correctly?
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Because it works both ways. Did you answer this riddle correctly?
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"H2O too" sounds like "H2O2", which is hydrogen peroxide. Hydrogen peroxide is a poison and can be deadly if its concentration in water is sufficiently high. Did you answer this riddle correctly?
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Time to get a new watch! Did you answer this riddle correctly?
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Water! Did you answer this riddle correctly?
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Juve-Niles! Did you answer this riddle correctly?
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A watchdog Did you answer this riddle correctly?
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Water. Did you answer this riddle correctly?
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The nite (knight) Did you answer this riddle correctly?
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A drop of water. Did you answer this riddle correctly?
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Let the hourglass with 7 minutes timeframe be x and the hourglass with 11 minutes timeframe be y.
Turn x and y together.
After seven minutes, turn x.
After 11 minutes, turn x again.
Now it will take 4 minutes for x to stop.
At that moment, you would have calculated 15 minutes. Did you answer this riddle correctly?
YES  NO  

The clock says its poo-thirty. Did you answer this riddle correctly?
YES  NO