Lost and Found by Andrew Clements (2008)

Twelve-year-old identical twins Jay and Ray have long resented that everyone treats them as a unit, an odd unit; so when the opportunity arises, they hatch a plot to take advantage of a clerical error at their new school and pretend they are just indeed one person. Clements is typically funny and irreverent; having twin boys himself the author orchestrates the plot so the parents are logically clueless and the boys are named Jay Ray and Ray Jay - easily confused auditorily as well as visually. The boys see an opportunity and run with the freedom of singleness. Chaos ensues as lies and misunderstandings mount giving the boys more trouble than their careful planning took into account. The situations are as true-to-life as they are funny! Ages: 8-9+