diff --git a/pom.xml b/pom.xml
index b7812d8ab3..ab0ef42ad2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -49,6 +49,13 @@
 			<version>4.12</version>
 		</dependency>
 
+		<!-- EMAIL -->
+		<dependency>
+			<groupId>org.apache.commons</groupId>
+			<artifactId>commons-email</artifactId>
+			<version>1.5</version>
+		</dependency>
+
 
 		<!-- APACHE COMMONS -->
 		<dependency>
diff --git a/src/test/java/com/ossez/codebank/interview/tests/PillPackTest.java b/src/test/java/com/ossez/codebank/interview/tests/PillPackTest.java
new file mode 100644
index 0000000000..d9df81fc62
--- /dev/null
+++ b/src/test/java/com/ossez/codebank/interview/tests/PillPackTest.java
@@ -0,0 +1,57 @@
+package com.ossez.codebank.interview.tests;
+
+import static org.junit.Assert.assertEquals;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Stream;
+
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.ossez.codebank.interview.KayakCountUpDown;
+import com.ossez.codebank.interview.KayakRobotMovement;
+
+/**
+ * PillPack
+ * 
+ * <pre>
+ * https://www.cwiki.us/display/ITCLASSIFICATION/Flatten+Nested+Arrays
+ * </pre>
+ * 
+ * @author YuCheng
+ *
+ */
+public class PillPackTest {
+
+	private final static Logger logger = LoggerFactory.getLogger(PillPackTest.class);
+
+	List<Integer> returnList = new ArrayList<Integer>();
+
+	/**
+	 * https://www.cwiki.us/display/ITCLASSIFICATION/Flatten+Nested+Arrays
+	 * 
+	 * FlattenNestedArrays
+	 */
+	@Test
+	public void testFlattenNestedArrays() {
+		logger.debug("Test FlattenNestedArrays");
+
+		Object[] array = { 1, 2, new Object[] { 3, 4, new Object[] { 5 }, 6, 7 }, 8, 9, 10 };
+		logger.debug("{} - > {}", Arrays.deepToString(array), Arrays.toString(java8Flatten(array).toArray()));
+
+	}
+
+	/**
+	 * Java 8 Stream to Flatten array.
+	 * 
+	 * @param array
+	 * @return
+	 */
+	private static Stream<Object> java8Flatten(Object[] array) {
+		return Arrays.stream(array).flatMap(o -> o instanceof Object[] ? java8Flatten((Object[]) o) : Stream.of(o));
+	}
+
+}