diff --git a/kabanyasu_training/item_04.py b/kabanyasu_training/item_04.py
new file mode 100644
index 0000000..40a05e7
--- /dev/null
+++ b/kabanyasu_training/item_04.py
@@ -0,0 +1,4 @@
+from urllib.parse import parse_qs
+my_values = parse_qs('red=5&blue=0&green=',
+                    keep_blank_values=True)
+print(repr(my_values))
\ No newline at end of file
diff --git a/kabanyasu_training/item_07.py b/kabanyasu_training/item_07.py
new file mode 100644
index 0000000..467d2f0
--- /dev/null
+++ b/kabanyasu_training/item_07.py
@@ -0,0 +1,6 @@
+a = [1,2,3,4,5,6,7,8,9,10]
+squares = [x**2 for x in a]
+print(squares)
+
+even_squares = [x**2 for x in a if x%2==0]
+print(even_squares)
\ No newline at end of file
diff --git a/kabanyasu_training/item_08.py b/kabanyasu_training/item_08.py
new file mode 100644
index 0000000..7912272
--- /dev/null
+++ b/kabanyasu_training/item_08.py
@@ -0,0 +1,6 @@
+matrix = [[1,2,3],[4,5,6],[7,8,9]]
+flat = [x for row in matrix for x in row]
+print(flat)
+
+squared = [[x**2 for x in row] for row in matrix]
+print(squared)
\ No newline at end of file
diff --git a/kabanyasu_training/item_14.py b/kabanyasu_training/item_14.py
new file mode 100644
index 0000000..1030da7
--- /dev/null
+++ b/kabanyasu_training/item_14.py
@@ -0,0 +1,8 @@
+def divide(a,b):
+    try:
+        return a / b
+    except ZeroDivisionError as e:
+        raise ValueError('Invalid inputs') from e
+
+result = divide(1,0)
+print(result)
\ No newline at end of file