Verbal Reasoning - Mental Ability Questions

In a certain code language, “FRONT” is written as “618151420” and “BORNE” is written as “21518145”. How is “MORNS” written in that code language?

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

80 x 16 ÷ 4 + 2 - 8 = ?

If REDUCE= 56, RECYCLE = 71 then REUSE=?

Select the related word/letters/number from the given alternatives.
AEG: GKM :: MQS : ?

Choose the related word/letters/number from the given alternatives. 19 : 6859 : : 21 : ?

At a college party 5 girls are sitting in a row. P is to the left of M and to the right of O. R is sitting to the right of N, but to the left of O. Who is sitting in the middle?

Raju's wife is the sister of Rakesh's son. How is Raju related to Rakesh?

In the following question, select the related word pair from the given alternatives.
Heart : Organ : : ? : ?