Two people are cutting wood. They cut wood in 8 minutes. How many minutes it takes to cut the wood into 4 pieces?

16 minutes Reason: - To go from 1 piece to 4 pieces you need 3 cuts (pieces = cuts + 1). - With two people, they can cut in parallel, so in the first 8 minutes they can perform 2 cuts at once, giving 3 pieces. - One more cut is still needed to reach 4 pieces; that takes another 8 minutes. - Total time = 8 + 8 = 16 minutes. Assumes: each cut takes the same amount of time, and two cuts can be made simultaneously (one by each person).