This problem has been around for a while, see if you can solve it without looking it up..
Objective is to measure exactly 4 gallons of water in a 5 gallon bucket.
Supplies: You have a 3 gallon and a 5 gallon bucket, one holds exactly 3 gallons and the other exactly 5 gallons. You have an infinite supply of water (lets just say more than you’ll ever need to solve this). The buckets have no markings on them.
You objective is to measure exactly 4 gallons of water and have it contained in the 5 gallon bucket. (I think you know why it won’y be in the 3 gallon bucket).
Comment back if you know the answer (well, one of them anyway)