Verbal Reasoning - Mental Ability Questions

Which one of the following words will appear third in the dictionary?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

Hydrogen, Helium, Lithium, ?

Find the missing term in the following question:-

Select the missing number from the given responses

In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '÷' and '÷' represents '-'. What is the answer to the following question?
72 x 9 - 14 + 2 = ?

If North is called North west , West is called South west , South is called South east and so on . A person walks straight from South west to North east and then turns left . Walks straight and again turns left . Now at what direction he is facing ?

From the given alternatives, select the word which CANNOT be formed using the letters of the given word.

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If 12x16 = 188 and 14x18 = 248, then find the value of 16x20 = ?