diff --git a/Questions.md b/Questions.md
index 49c4339..f2499c0 100644
--- a/Questions.md
+++ b/Questions.md
@@ -36,3 +36,5 @@
 8. [Delete Node in a Linked List](https://leetcode.com/problems/delete-node-in-a-linked-list/description/) `Leetcode 150` `Striver`
 9. [Reverse a LinkedList in groups of size k.](https://leetcode.com/problems/reverse-nodes-in-k-group/description/) `Leetcode 150` `Striver`
 10. [Rotate List](https://leetcode.com/problems/rotate-list/description/) `Leetcode 150` `Striver`
+11. [Copy List with Random Pointer](https://leetcode.com/problems/copy-list-with-random-pointer/description/) `Leetcode 150` `Striver`
+12.