He prefers to keep things simple. (What)
He made sure that his book wasn't long-winded. (What...of)
The title of his book is Successful Public Speaking. (What)
It costs $30. (How)
He wrote it last year. (When)
Thirty-five pages were in that edition. (How)
It costs $7.00. (How)
He decided to fight back. (What)
She has three jobs. (How)
He wrote it during a sabbatical. (When)