Can You Solve These 12 Tricky Problems?
Since she was born less than 40 years ago, then the sequence must be 2,4,8,16,32 - meaning the youngest is 2 years old. 3 6 1 2 There are 12 identical Coins. They all have the exact same weight except for 1 coin that is heavier than the other 11 coins.
12 Qs