Answer:
Step-by-step explanation:
e're back with another riddle, and this week's is nice and short, though figuring out the solution can be a bedeviling pursuit.
Problem
You have two ropes coated in an oil to help them burn. Each rope will take exactly 1 hour to burn all the way through. However, the ropes do not burn at constant rates—there are spots where they burn a little faster and spots where they burn a little slower, but it always takes 1 hour to finish the job.
With a lighter to ignite the ropes, how can you measure exactly 45 minutes?
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Hint
You can light multiple ends and/or multiple ropes at the exact same time.
Solution
Think about clever ways to light these ropes on fire for a little bit, then see the solution here.