Question: It was still in the dining cart, hidden behind the counter.
The treasure was hiddne behind the counter in the dining cart.

Answer: it is not possible to tell

Question: California Institute of Technology vaults from fourth to first in the magazine's annual university rankings . Its three-to-one student-faculty ratio is much praised, as is its annual spending of $192,000 on each student.
California Institute of Technology is best known for its warm atmosphere and school spirit.

Answer: it is not possible to tell

Question: I'm not so sure about that, replied Tuppence thoughtfully.
Tuppence isn't sure about leaving.

Answer:
it is not possible to tell