Consider the following five words: CAT, DOG, PEN, RUG, SIP If all consonants within each word are changed to the letter that is two places next to it in the English alphabet, while all vowels remain unchanged, how many words will contain more than one vowel?

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

Consider the following sequence of words ordered from left to right: FOX, HEN, JUG, MAP, SIT Which letter comes three places after the third letter of the fourth word from the right side, as per the English alphabetical series?