Here's a puzzle for you......
Four people each bought a new house in a new housing development. The builder left something each needed off each of the houses. The four people went to the hardware store to price what they needed and this is what they found out. One would cost just $1.00. Eight would cost just $1.00. Sixteen would cost $2.00 and two hundred fifty would cost $3.00. Each bought what they needed and together everthing each needed for their house cost $4.00. What did the builder leave off that they needed to buy?