How many snails does it take to power a small city? Plus, ruckus in the peanut gallery and what's the difference between an iceberg and seagull shit? Also, gardens in potholes in the road, feeding a dog via Twitter, a woman who is in love with the Statue of Liberty, an escaped penguin in Japan and is Carlsberg lager as important as the emergency services in Denmark? Question of the Week: Why do shoelaces come undone?