A REVIEW OF BRAIN TEASERS

c) It’s as mild as a feather, though the strongest human being can’t keep it for in excess of five minutes. What on earth is it?139. A ship provides a ladder that’s ten toes very long, and hangs off the facet on the boat, with its final a few toes submerged in drinking water. If the ocean tide rises five ft, just how much on the ladder might