Using all the letters of the word QUESTION, how many different words can be formed?

Using the letters of the word CHEMISTRY, how many six letter words can be formed, which end with Y?

Using all the letters of the word OBJECTS, how many words can be formed which begin with B but do not end with S?

Using all the letters of the word PROBLEM, how many words can be formed such that the consonants occupy the middle place?

Using all the letters of the word NOKIA, how many words can be formed, which begin with N and end with A?

Consider all the letters of the word 'FALIURE' How many words can be formed using these letter?

How many different words (with or without meaning) can be formed using all the letters of word 'WARDEN'? How many of these words being with w and end with N?

How many different words can be formed by using all the letters of the word MATHEMATICS ? In how many of them, vowels are always together ?

How many words, with or without meaning, can be formed using all the letters of the word EQUATION, using each letter exactly once?

How many words, with or without meaning, can be formed using all the letters of the word EQUATION, using each letter exactly once?