Playwright Nancy Chastain&rsquo;s &ldquo;The Answer&rdquo; poses some big questions. Chastain also directs her play which is one of two being presented three evenings, back to back. The other is &ldquo;Flip&rdquo; written by Kate Rich and directed by Dick Sanders. 
In &ldquo;The Answer&rdquo; the two actors, Carolyn (played by Marsha Lynn) and Ann (Marla McPherson) are long-time friends in their mid-50s who share secrets. Carolyn had an affair with Ann&rsquo;s son (who is half her age),