Verbal Reasoning - Mental Ability Questions

In a certain code language, '-' represents '+', '+' represents 'x', 'x' represents '÷' and '÷' represents '-'. Find out the answer to the following question.

6 x 6 ÷ 10 - 8 + 2 = ?

If B = 2, K = 11; MAN = 0, SIN = 14, then what is the value of HOT?

Choose the related word/letters/number from the given alternatives.
AF : BE : : ? : DH

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

hello, lower, error, organ, tense, ?

Select the related word/letters/number from the given alternatives.
30 : 16 :: 24 : ?

In a certain code language, “LUNGS” is written as “OWQIV”. How is “HEART” written in that code language?

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series. CX, EV, GT, IR, ?

Some books are arranged one above the other. If a book is at 18th position from the top and 5th position from bottom then the total number of books is