'When it is raining, peacocks dance.'

Based only on this sentence, which one of the following options is necessarily true?

Water: P:: Food: Q

Choose the P and Q combination from the options below to form a meaningful analogy.

Two tiles are missing in Panel I. Which one of the options in Panel II is the appropriate choice for the missing tiles?

Figures (i) and (ii) represent intercity highway systems. The black dots represent cities and the line segments between them represent intercity highways. A salesperson needs to make a trip. She needs to start from a city, visit each of the remaining cities exactly once, and finally return to the same city from which she started.

Which one of the following options is then true?