Lyle E. Mayer    Lyle Edwin Mayer, age 87, of LaPlata, Missouri formerly of Knox County died Friday, February 29, 2008, in the Twin Pines Adult Care Center in Kirksville, Missouri.    He was born August 26, 1920, in Kenwood, Missouri the son of Edwin Penman (Pen) and Callie Louise Pruett Mayer.    On April…