diff --git a/thinkcspy/Chapter-16-Exercises/crossings.py b/thinkcspy/Chapter-16-Exercises/Problem11_crossings.py
similarity index 95%
rename from thinkcspy/Chapter-16-Exercises/crossings.py
rename to thinkcspy/Chapter-16-Exercises/Problem11_crossings.py
index 27cd385..a68eaf1 100644
--- a/thinkcspy/Chapter-16-Exercises/crossings.py
+++ b/thinkcspy/Chapter-16-Exercises/Problem11_crossings.py
@@ -1,3 +1,7 @@
+# Runestone.Academy thinkcspy course
+# Chapter 16
+# Problem 11
+
 def cross(rounds, bank1, boat, bank2):
     if bank1["Missionaries"] + bank1["Cannibals"] == 0 and boat["Missionaries"] + boat["Cannibals"] == 0:
         return "Journey complete"
diff --git a/thinkcspy/Chapter-16-Exercises/pascal.py b/thinkcspy/Chapter-16-Exercises/Problem13_pascal.py
similarity index 86%
rename from thinkcspy/Chapter-16-Exercises/pascal.py
rename to thinkcspy/Chapter-16-Exercises/Problem13_pascal.py
index 6068710..7969069 100644
--- a/thinkcspy/Chapter-16-Exercises/pascal.py
+++ b/thinkcspy/Chapter-16-Exercises/Problem13_pascal.py
@@ -1,4 +1,8 @@
-def createTriange(numRows):
+# Runestone.Academy thinkcspy course
+# Chapter 16
+# Problem 13
+
+def createTriangle(numRows):
     if numRows < 0:
         return
     else:     
@@ -36,6 +40,6 @@ def factorial(number):
         
 
 
-createTriange(10)
+createTriangle(10)
 
 
diff --git a/thinkcspy/Chapter-16-Exercises/tree.py b/thinkcspy/Chapter-16-Exercises/Problem3_tree.py
similarity index 92%
rename from thinkcspy/Chapter-16-Exercises/tree.py
rename to thinkcspy/Chapter-16-Exercises/Problem3_tree.py
index 1877005..bdf2223 100644
--- a/thinkcspy/Chapter-16-Exercises/tree.py
+++ b/thinkcspy/Chapter-16-Exercises/Problem3_tree.py
@@ -1,3 +1,7 @@
+# Runestone.Academy thinkcspy course
+# Chapter 16
+# Problem 3
+
 import turtle
 import random
 
diff --git a/thinkcspy/Chapter-16-Exercises/mountain.py b/thinkcspy/Chapter-16-Exercises/Problem4_mountain.py
similarity index 95%
rename from thinkcspy/Chapter-16-Exercises/mountain.py
rename to thinkcspy/Chapter-16-Exercises/Problem4_mountain.py
index 50eb438..4e47c89 100644
--- a/thinkcspy/Chapter-16-Exercises/mountain.py
+++ b/thinkcspy/Chapter-16-Exercises/Problem4_mountain.py
@@ -1,3 +1,7 @@
+# Runestone.Academy thinkcspy course
+# Chapter 16
+# Problem 4
+
 import turtle
 import random
 
diff --git a/thinkcspy/Chapter-16-Exercises/hanoi.py b/thinkcspy/Chapter-16-Exercises/Problem6and12_hanoi.py
similarity index 96%
rename from thinkcspy/Chapter-16-Exercises/hanoi.py
rename to thinkcspy/Chapter-16-Exercises/Problem6and12_hanoi.py
index 2c3d184..655f104 100644
--- a/thinkcspy/Chapter-16-Exercises/hanoi.py
+++ b/thinkcspy/Chapter-16-Exercises/Problem6and12_hanoi.py
@@ -1,3 +1,7 @@
+# Runestone.Academy thinkcspy course
+# Chapter 16
+# Problems 6 and 12
+
 import turtle
 import random
 
diff --git a/thinkcspy/Chapter-16-Exercises/hilbert.py b/thinkcspy/Chapter-16-Exercises/Problem7_hilbert.py
similarity index 94%
rename from thinkcspy/Chapter-16-Exercises/hilbert.py
rename to thinkcspy/Chapter-16-Exercises/Problem7_hilbert.py
index e9525cb..986f2c1 100644
--- a/thinkcspy/Chapter-16-Exercises/hilbert.py
+++ b/thinkcspy/Chapter-16-Exercises/Problem7_hilbert.py
@@ -1,3 +1,6 @@
+# Runestone.Academy thinkcspy course
+# Chapter 16
+# Problem 7
 
 import turtle
 
diff --git a/thinkcspy/Chapter-16-Exercises/kochsnowflake.py b/thinkcspy/Chapter-16-Exercises/Problem8_kochsnowflake.py
similarity index 94%
rename from thinkcspy/Chapter-16-Exercises/kochsnowflake.py
rename to thinkcspy/Chapter-16-Exercises/Problem8_kochsnowflake.py
index 0194425..cb1f51b 100644
--- a/thinkcspy/Chapter-16-Exercises/kochsnowflake.py
+++ b/thinkcspy/Chapter-16-Exercises/Problem8_kochsnowflake.py
@@ -1,3 +1,6 @@
+# Runestone.Academy thinkcspy course
+# Chapter 16
+# Problem 8
 
 import turtle
 
diff --git a/thinkcspy/Chapter-16-Exercises/gallons.py b/thinkcspy/Chapter-16-Exercises/Problem9and10_gallons.py
similarity index 93%
rename from thinkcspy/Chapter-16-Exercises/gallons.py
rename to thinkcspy/Chapter-16-Exercises/Problem9and10_gallons.py
index 1360f0d..08aec08 100644
--- a/thinkcspy/Chapter-16-Exercises/gallons.py
+++ b/thinkcspy/Chapter-16-Exercises/Problem9and10_gallons.py
@@ -1,3 +1,6 @@
+# Runestone.Academy thinkcspy course
+# Chapter 16
+# Problems 9 and 10
 
 def fillJug(rounds, jugA, jugB, target):
     pour = 0