diff --git a/Interview-Preparation-Kit/Dictionary-and-Hashmap/sherlock-and-anagrams.js b/Interview-Preparation-Kit/Dictionary-and-Hashmap/sherlock-and-anagrams.js
new file mode 100644
index 0000000..1c10a7d
--- /dev/null
+++ b/Interview-Preparation-Kit/Dictionary-and-Hashmap/sherlock-and-anagrams.js
@@ -0,0 +1,34 @@
+/**
+ * @title Sherlock and Anagrams
+ * @difficulty Medium
+ * @link https://www.hackerrank.com/challenges/sherlock-and-anagrams/problem
+ */
+
+const isAnagram = (origin, cand) => {
+  for (let i = 0; i < cand.length; i++) {
+    const del = origin.indexOf(cand.charAt(i));
+    if (del !== -1) {
+      origin = origin.substring(0, del) + origin.substring(del + 1);
+    } else {
+      return false;
+    }
+  }
+
+  return true;
+};
+
+const sherlockAndAnagrams = query => {
+  const {length} = query;
+  let cnt = 0;
+  for (let l = 1; l < length; l++) {
+    for (let start = 0; start + l < length; start++) {
+      const origin = query.substring(start, start + l);
+      for (let idx = start + 1; idx + l <= length; idx++) {
+        const cand = query.substring(idx, idx + l);
+        cnt = (isAnagram(origin, cand)) ? cnt + 1 : cnt;
+      }
+    }
+  }
+
+  return cnt;
+};
diff --git a/README.md b/README.md
index d0268dc..65b202f 100644
--- a/README.md
+++ b/README.md
@@ -61,6 +61,13 @@ Generates the README.md.
 | --- | --- | --- |
 | Easy | [2D Array - DS](https://www.hackerrank.com/challenges/2d-array/problem) | [Solution](./Interview-Preparation-Kit/Arrays/2d-array-ds.js)|
 | Easy | [Left Rotation](https://www.hackerrank.com/challenges/ctci-array-left-rotation/problem) | [Solution](./Interview-Preparation-Kit/Arrays/left-rotation.js)|
+#### Dictionary-and-Hashmap
+| Difficulty | Problem | Solution |
+| --- | --- | --- |
+| Medium | [Sherlock and Anagrams](https://www.hackerrank.com/challenges/sherlock-and-anagrams/problem) | [Solution](./Interview-Preparation-Kit/Dictionary-and-Hashmap/sherlock-and-anagrams.js)|
+#### Strings
+| Difficulty | Problem | Solution |
+| --- | --- | --- |
 #### Warm-up-Challenges
 | Difficulty | Problem | Solution |
 | --- | --- | --- |