These are simple questions, but they are not simple to answer.

这些都是简单的问题，但是确无法简单地回答。

youdao

He says, oh it's a very simple question; it's not difficult to answer.

他答道,这问题太简单了,一点儿都不难回答

耶鲁公开课 - 古希腊历史简介课程节选

And when young women graduate, they should get equal pay for equal work. (Applause.) That should be a simple question to answer.

WHITEHOUSE: The White House

Before the latest figures were announced, Roy Norris, former chair of the Welsh Ambulance Services NHS Trust, said people would be wrong to think that the simple answer was to have more ambulances.

BBC: Ambulance service miss emergency response times

There is a simple answer to this seemingly complex crisis: Put the consumer in charge.

FORBES: Fact and Comment