What is it for?
What did you say that for?
What do you need so much money for?
A: Have you heard that my father is going to quit his job?
B: What would he do that for?
A: He said work is too hectic and that he needs a break.
B: What will he do to earn a living?
A: He said he would take a vacation for a while and then go into the carpentry business. He thinks it will be more relaxing.
B: Well, I hope he’s happy.