Given below are three combinations (i), (ii) and (iii) of five letters. In each combination, arrange the letters as per the English alphabetical order from left to right. Then, the first letter from the left end is numbered as I, the second as II, and so on up to V. From each of the rearranged words, the letters at the same position are clubbed together. The letters at which position (I, II, III, IV, or V) are in alphabetical order when taken in the order of combination (i), (ii) and (iii) respectively? (i) DXPKJ (ii) LSBFQ (iii) MWAGV

This question is based on the following words: LAD NOR NEB NOD How many letters are there between the second letter of the second word from the right and the second letter of the second word from the left, counted in English alphabetical order?

This question is based on the following words: RAW MEN AID FAY In each of the words, each vowel is changed to the letter immediately preceding it in the English alphabetical order and each consonant is changed to the letter immediately following it in the English alphabetical order. In how many letter-clusters thus formed will no vowel appear?