diff --git a/Questions.md b/Questions.md
index 34ecbeb..a173715 100644
--- a/Questions.md
+++ b/Questions.md
@@ -52,5 +52,7 @@
 3. [Valid Parentheses](https://leetcode.com/problems/valid-parentheses/description/) `Leetcode 150` `Striver`
 4. [Min Stack](https://leetcode.com/problems/min-stack/description/) `Leetcode 150` `Striver`
 5. [LRU Cache](https://leetcode.com/problems/lru-cache/description/) `Leetcodze 150` `Striver`
-6. [LFU Cache](https://leetcode.com/problems/lfu-cache/description/) `Striver`
-7. [Largest Rectangle in Histogram](https://leetcode.com/problems/largest-rectangle-in-histogram/description/) `Striver`
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+6. [Nearest Smaller Element](https://www.interviewbit.com/problems/nearest-smaller-element/) `Striver`
+7. [Next Greater Element I](https://leetcode.com/problems/next-greater-element-i/description/) `Striver`
+8. [LFU Cache](https://leetcode.com/problems/lfu-cache/description/) `Striver`
+9. [Largest Rectangle in Histogram](https://leetcode.com/problems/largest-rectangle-in-histogram/description/) `Striver`
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