Verbal Reasoning - Mental Ability Questions

In a certain code language, "COPIOUS" is written as "2345389" and "GENEROUS" is written as "16760389". How is "PIGEON" written in that code language?

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

CD, FA, IX, LU, ?

If S = 19, SUN = 54 and CAKE = 20 , then MISTAKE = ?

In a certain code language, "WILDHORN" is written as "1133" and "RAPTURE" is written as "1089". How is "PORTLOUIS" written in that code language?

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
_ yzaa _ y _ xy _ aazy _

In a certain code language, "OPTIMIST" is written as "LKRNRGHG". How is "PESSIMIST" written in that code language?

If P denotes ÷ , Q denotes x, R denotes + and S denotes ­ then what is the value of 18Q12P4R5S6

Navjot starts moving towards the west. After covering some distance, he turns left and then takes a right. Which direction is he facing now?