Spiky get some three cups and a piece of coin. These will be his tools for pranking and tricking his friends.
So he asked them to find the yellow coin in those three cups and if they will be able to choose the right cup, he will give the coin to them
Spiky started shuffling the cups and then they started guessing where is the coin
Gladly they chose the correct cup and as a promise they got the coin.
But they don't have an idea that they can get much more than that coin if they choose one of the other two cups which contains $500
