1. Insert a node at the head of a singly linked list.
2. Insert a node at the tail of a singly linked list.
3. Insert a node at a specific position in a singly linked list.
4. Delete the head node of a singly linked list.
5. Delete the tail node of a singly linked list.
6. Delete a node at a specific position in a singly linked list.
7. Search for an element in a singly linked list.
8. Count the number of nodes in a singly linked list.
9. Reverse a singly linked list.
10. Print all elements of a singly linked list.
11. Find the middle element of a singly linked list.
12. Detect a cycle in a singly linked list.
13. Merge two sorted linked lists.
14. Find the nth node from the end of a singly linked list.
15. Remove duplicates from a sorted singly linked list.
16. Find the intersection point of two singly linked lists.
17. Check if two singly linked lists are identical.
18. Find the length of a singly linked list.
19. Swap two nodes in a singly linked list.
20. Split a singly linked list into two halves.
21. Delete all nodes with a given value from a singly linked list.
22. Find if a singly linked list is a palindrome.
23. Rotate a singly linked list by k positions.
24. Convert a singly linked list to a circular linked list.
25. Insert a node in a sorted singly linked list.
26. Find the maximum element in a singly linked list.
27. Find the minimum element in a singly linked list.
28. Clone a singly linked list with random pointers.
29. Append the last N nodes of a singly linked list to the front.
30. Check if a singly linked list has even or odd length.
31. Remove the last occurrence of an element from a singly linked list.
32. Delete alternate nodes from a singly linked list.
33. Pairwise swap elements in a singly linked list.
34. Move the last element to the front of a singly linked list.
35. Insert a node at the beginning of a circular linked list.
36. Insert a node at the end of a circular linked list.
37. Delete the head node of a circular linked list.
38. Delete the tail node of a circular linked list.
39. Find the length of a circular linked list.
40. Search for an element in a circular linked list.