diff --git a/Questions.md b/Questions.md
index cab67a3..86ebec6 100644
--- a/Questions.md
+++ b/Questions.md
@@ -57,4 +57,5 @@
 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`
 10. [Sliding Window Maximun](https://leetcode.com/problems/sliding-window-maximum/description/) `Striver`
-11. [Online Stock Span](https://leetcode.com/problems/online-stock-span/description/) `Striver`
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+11. [Online Stock Span](https://leetcode.com/problems/online-stock-span/description/) `Striver`
+12. [The Celebrity Problem](https://www.geeksforgeeks.org/problems/the-celebrity-problem/1) `Striver`
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