letter to Executive Engineer of the Jal Board about the water problems in English

Many desert plants overcome the water problem by

Which one of the following statements about water is false ?

Which statement is wrong about water pollution ?

How many different car licence plates can be constructed, if the licences contain three letters of the English alphabet followed by a three digit number, if repetition are allowed?

Which letters of the English alphabet have : a single horizontal line of symmetry

Write three capital letters of the English alphabet that do not have line symmetry but have rotational symmetry?

Each of the letters of the word 'AUTHORIZES' is written on identical circular discs and put in a bag. They are well shuffled. If a disc is drawn at random from the bag, what is the probability that the letter is: (i) a vowel (ii) one of the first 9 letters of the English alphabet which appears in the given word. (iii) one of the last 9 letters of the English alphabet which appears in the given word ?

A letter of English alphabet is chosen at random. Determine the probability that the chosen letter is a consonant.

A letter of English alphabet is chosen at random. Determine the probability that the chosen letter is a consonant.