Q: If Who put it in the chest, I wonder?, can we say that "I don't know who put it in the chest."?

A: it is not possible to tell

Q: If Yoffe suggests that truth can be found just as easily in tabloids as in traditional publishing outlets, can we say that "Truth can often be found in tabloids, according to Yoffe."?

A: yes

Q: If Computer pioneers John Von Neumann and Alan Turing were also mentioned--big surprise that their names should crop up in an Internet forum., can we say that "It was no surprise that computer pioneers John Von Neumann and Alan Turing were also mentioned"?

A: yes

Q: If 'But we have certain concerns about image copyright., can we say that "Image copyright is a concern of ours."?

A:
yes