Writing in Alphabetical order, which name of the following will appear in the last?

If in English alphabet, A = 1, D = 2, P = 4, then which of the following denotes 3?

As ‘Court of law’ is related to ‘Justice’, in the same way, ‘School’ is related to which one of the following?

If water is called food, food is called tree, tree is called sky, sky is called wall, then on which of the following grows a fruit?

Which of the following group of letters is different from the others?

If in VITREOUS all consonants are first arranged alphabetically and then all vowels alphabetically, which letter will be second to the right of fourth from the left?