Here is a riddle. The aim is to be the first to find the answer, without cheating by looking up the answer on the internet
"You possess a very accurate pair of scales, and 9 identical balls . One of them is slightly heavier than the other 8, but you don't know which one it is. The aim is to find out in 2 weightings"
that's an easy one to start off, but I have harder ones waiting for you. ^^
