Que. 
Given pointer to a node X in a singly linked list. Only one pointer is given, pointer to head node is not given, can we delete the node X from given linked list?

a. 
Possible if X is not last node. Use following two steps (a) Copy the data of next of X to X. (b) Delete next of X 
b. 
Possible if size of linked list is even 
c. 
Possible if size of linked list is odd 
d. 
Possible if X is not first node. Use following two steps (a) Copy the data of next of X to X. (b) Delete next of X 

Answer:Possible if X is not last node. Use following two steps (a) Copy the data of next of X to X. (b) Delete next of X 