Rope Burning Riddle
Description You are given two ropes and a lighter. Both ropes take exactly one hour to burn. Some parts of the ropes are thicker than other parts of the rope, therefore not all parts of the rope will burn at the same speed. Consequently burning half the rope will not necessarily take 30 minutes. Goal: Find a way to Measure 45 minutes of time.
All the rope will be burnt in 45 minutes
Light both ends of rope 'A'. At the same time light one end of rope 'B'. Once rope A has burnt out light the remaining end of rope 'B'.