If BEAR is coded as FISH, FISH as CROW, CROW as DOG, DOG as ELEPHANT and ELEPHANT as ASS then who cannot remain alive in other place than water?

In the question given below, a group of digits/symbols is given followed by four combinations of letters numbered as (a), (b), (c) and (d). You have to find out which of the combinations (a), (b), (c) and (d) correctly represents the group of digits/symbols based on the following coding system and the conditions those follow and mark the number of that combination as your answer. If none of the four combinations correctly represents the group of digits/symbols, mark (e) i.e. 'None of these' as the answer.

CONDITIONS
(i) If the first unit in the group is an even digit and the last unit is a symbol both these are to be coded as the code for the symbol.
(ii) If the first unit in the group is an odd digit and the last digit is an even digit their codes are to be interchanged.
(iii) If both first and the last units in the group are symbols both these are to be coded as 'X'.
Find the code of $@91\$26$.
 

In the question given below, a group of digits/symbols is given followed by four combinations of letters numbered as (a), (b), (c) and (d). You have to find out which of the combinations (a), (b), (c) and (d) correctly represents the group of digits/symbols based on the following coding system and the conditions those follow and mark the number of that combination as your answer. If none of the four combinations correctly represents the group of digits/symbols, mark (e) i.e. 'None of these' as the answer.

CONDITIONS
(i) If the first unit in the group is an even digit and the last unit is a symbol both these are to be coded as the code for the symbol.
(ii) If the first unit in the group is an odd digit and the last digit is an even digit their codes are to be interchanged.
(iii) If both first and the last units in the group are symbols both these are to be coded as '$X$'.
Find the code of $387\#@9$
 

In the question given below, a group of digits/symbols is given followed by four combinations of letters numbered as (a), (b), (c) and (d). You have to find out which of the combinations (a), (b), (c) and (d) correctly represents the group of digits/symbols based on the following coding system and the conditions those follow and mark the number of that combination as your answer. If none of the four combinations correctly represents the group of digits/symbols, mark (e) i.e. 'None of these' as the answer.

CONDITIONS

(i) If the first unit in the group is an even digit and the last unit is a symbol both these are to be coded as the code for the symbol.

(ii) If the first unit in the group is an odd digit and the last digit is an even digit their codes are to be interchanged.

(iii) If both the first and the last units in the group are symbols both these are to be coded as $X$.

Find the code of $4@312\$$.

In the question given below, a group of digits/symbols is given followed by four combinations of letters numbered as (a), (b), (c) and (d). You have to find out which of the combinations (a), (b), (c) and (d) correctly represents the group of digits/symbols based on the following coding system and the conditions those follow and mark the number of that combination as your answer. If none of the four combinations correctly represents the group of digits/symbols, mark (e) i.e. 'None of these' as the answer.

CONDITIONS
(i) If the first unit in the group is an even digit and the last unit is a symbol both these are to be coded as the code for the symbol.
(ii) If the first unit in the group is an odd digit and the last digit is an even digit their codes are to be interchanged.
(iii) If both the first and the last units in the group are symbols both these are to be coded as '$X$'.
Find the code of $\%4187*$.
 

In the question given below, a group of digits/symbols is given followed by four combinations of letters numbered as (a), (b), (c) and (d). You have to find out which of the combinations (a), (b), (c) and (d) correctly represents the group of digits/symbols based on the following coding system and the conditions those follow and mark the number of that combination as your answer. If none of the four combinations correctly represents the group of digits/symbols, mark (e) i.e. 'None of these' as the answer.

CONDITIONS
(i) If the first unit in the group is an even digit and the last unit is a symbol both these are to be coded as the code for the symbol.
(ii) If the first unit in the group is an odd digit and the last digit is an even digit their codes are to be interchanged.
(iii) If both the first and the last units in the group are symbols both these are to be coded as 'X'.
Find the code of $9124\%6$.

In the following question, a group of numbers/symbols followed by five combinations of letter codes is given. You have to find out which of the combinations correctly represents the group of numbers/symbols based on the given coding system and the conditions and mark that combination as your answer.

Conditions
(i) If the first and the last elements are odd numbers then their codes are to be interchanged. 
(ii) If an even number is immediately followed as well as immediately preceded by a symbol then that even number is to be coded as 'O'.
(iii) If the third element is a symbol then the first element is to be coded as the code of that symbol.
(iv) If the second last element is an odd number then the code of that odd number is to be interchanged with the code of the last element.
(Please Note) : All the elements have to be counted from left to right to fulfil the conditions.
Find the code of $97@+4$. 

In the following question, a group of numbers of symbols followed by five combinations of letter codes is given. You have to find out which of the combinations correctly represents the group of numbers of symbols based on the given coding system and the conditions and mark that combination as your answer.

Conditions:

(i) If the first and the last elements are odd numbers then their codes are to be interchanged. 
(ii) If an even number is immediately followed as well as immediately preceded by a symbol then that even number is to be coded as '$O$'.
(iii) If the third element is a symbol then the first element is to be coded as the code of that symbol.
(iv) If the second last element is an odd number then the code of that odd number is to be interchanged with the code of the last element.
(Please Note): All the elements have to be counted from left to right to fulfil the conditions.
$7 \# 6 8 \& 3$

In the following question, a group of numbers of symbols followed by five combinations of letter codes is given. You have to find out which of the combinations correctly represents the group of numbers of symbols based on the given coding system and the conditions and mark that combination as your answer.

Conditions: (i) If the first and the last elements are odd numbers then their codes are to be interchanged. 
(ii) If an even number is immediately followed as well as immediately preceded by a symbol then that even number is to be coded as 'O'.
(iii) If the third element is a symbol then the first element is to be coded as the code of that symbol.
(iv) If the second last element is an odd number then the code of that odd number is to be interchanged with the code of the last element.
(Please Note): All the elements have to be counted from left to right to fulfil the conditions.
$4 \# 5 \% 9 2$