diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md
index ae4e1977..9b9cc912 100644
--- a/.github/pull_request_template.md
+++ b/.github/pull_request_template.md
@@ -20,7 +20,7 @@ Self checklist
 - [ ] I have committed my files one by one, on purpose, and for a reason
 - [ ] I have titled my PR with COHORT_NAME | FIRST_NAME LAST_NAME | REPO_NAME | WEEK 
 - [ ] I have tested my changes
-- [ ] My changes follow the [style guide](https://curriculum.codeyourfuture.io/guides/contributing/)
+- [ ] My changes follow the [style guide](https://syllabus.codeyourfuture.io/guides/code-style-guide/)
 - [ ] My changes meet the [requirements](./README.md) of this task
 
 ## Changelist
diff --git a/Sprint-2/debug/0.js b/Sprint-2/debug/0.js
index b46d471a..279c3be5 100644
--- a/Sprint-2/debug/0.js
+++ b/Sprint-2/debug/0.js
@@ -1,4 +1,5 @@
 // Predict and explain first...
+// Prediction : I think the function won't return anything because it's using console.log() and not return.
 
 function multiply(a, b) {
   console.log(a * b);
diff --git a/Sprint-2/debug/1.js b/Sprint-2/debug/1.js
index df4020ca..15081715 100644
--- a/Sprint-2/debug/1.js
+++ b/Sprint-2/debug/1.js
@@ -1,4 +1,5 @@
 // Predict and explain first...
+// Prediction : it will return "the sum of 10 and 32 is null". Because the function returns something but it's null.
 
 function sum(a, b) {
   return;
@@ -6,3 +7,13 @@ function sum(a, b) {
 }
 
 console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);
+// The result of summing 10 and 32 is 320
+
+// Predict and explain first...
+
+function sum(a, b) {
+  return;
+  a + b;
+}
+
+console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);
\ No newline at end of file
diff --git a/Sprint-2/debug/2.js b/Sprint-2/debug/2.js
index bae9652a..639c4b76 100644
--- a/Sprint-2/debug/2.js
+++ b/Sprint-2/debug/2.js
@@ -11,4 +11,4 @@ console.log(`The last digit of 105 is ${getLastDigit(105)}`);
 console.log(`The last digit of 806 is ${getLastDigit(806)}`);
 
 // This program should tell the user the last digit of each number.
-// Explain why getLastDigit is not working properly - correct the problem
+// Explain why getLastDigit is not working properly - correct the problem
\ No newline at end of file
diff --git a/Sprint-2/errors/0.js b/Sprint-2/errors/0.js
index 74640e11..06c7231d 100644
--- a/Sprint-2/errors/0.js
+++ b/Sprint-2/errors/0.js
@@ -3,7 +3,8 @@
 // call the function capitalise with a string input
 // interpret the error message and figure out why an error is occurring
 
+
 function capitalise(str) {
-  let str = `${str[0].toUpperCase()}${str.slice(1)}`;
+  str = `${str[0].toUpperCase()}${str.slice(1)}`; // No `let`, just reassign
   return str;
 }
diff --git a/Sprint-2/errors/1.js b/Sprint-2/errors/1.js
index 4602ed23..bf588eac 100644
--- a/Sprint-2/errors/1.js
+++ b/Sprint-2/errors/1.js
@@ -4,10 +4,8 @@
 // Try playing computer with the example to work out what is going on
 
 function convertToPercentage(decimalNumber) {
-  const decimalNumber = 0.5;
   const percentage = `${decimalNumber * 100}%`;
-
   return percentage;
 }
 
-console.log(decimalNumber);
+console.log(convertToPercentage(0.5)); // Outputs "50%"
diff --git a/Sprint-2/errors/2.js b/Sprint-2/errors/2.js
index 814334d9..177cf5cc 100644
--- a/Sprint-2/errors/2.js
+++ b/Sprint-2/errors/2.js
@@ -1,10 +1,8 @@
 
-// Predict and explain first...
-
-// this function should square any number but instead we're going to get an error
-
-function square(3) {
+function square(num) {
     return num * num;
 }
 
+console.log(square(3)); // Outputs: 9
+
 
diff --git a/Sprint-2/extend/format-time.js b/Sprint-2/extend/format-time.js
index f3b83062..afa812c3 100644
--- a/Sprint-2/extend/format-time.js
+++ b/Sprint-2/extend/format-time.js
@@ -22,3 +22,21 @@ console.assert(
   currentOutput2 === targetOutput2,
   `current output: ${currentOutput2}, target output: ${targetOutput2}`
 );
+
+const tests = [
+  { input: "08:00", expected: "08:00 am" },
+  { input: "23:00", expected: "11:00 pm" },
+  { input: "00:00", expected: "12:00 am" },
+  { input: "12:00", expected: "12:00 pm" },
+  { input: "00:01", expected: "12:01 am" },
+  { input: "12:01", expected: "12:01 pm" },
+  { input: "13:00", expected: "1:00 pm" },
+];
+
+tests.forEach(({ input, expected }) => {
+  const output = formatAs12HourClock(input);
+  console.assert(
+    output === expected,
+    `Test failed for input "${input}". Output: "${output}", Expected: "${expected}"`
+  );
+});
diff --git a/Sprint-2/implement/bmi.js b/Sprint-2/implement/bmi.js
index 259f62d4..eaeff214 100644
--- a/Sprint-2/implement/bmi.js
+++ b/Sprint-2/implement/bmi.js
@@ -13,3 +13,16 @@
 // Given someone's weight in kg and height in metres
 // Then when we call this function with the weight and height
 // It should return their Body Mass Index to 1 decimal place
+
+
+function calculateBMI(weight, height) {
+    // Step 1: Square the height
+    const heightSquared = height ** 2;
+  
+    // Step 2: Divide weight by height squared
+    const bmi = weight / heightSquared;
+  
+    // Step 3: Return the result to 1 decimal place
+    return parseFloat(bmi.toFixed(1));
+  }
+  
\ No newline at end of file
diff --git a/Sprint-2/implement/cases.js b/Sprint-2/implement/cases.js
index 9e56a27b..a8f8e4fb 100644
--- a/Sprint-2/implement/cases.js
+++ b/Sprint-2/implement/cases.js
@@ -13,3 +13,16 @@
 
 // You will need to come up with an appropriate name for the function
 // Use the string documentation to help you find a solution
+
+
+function toUpperSnakeCase(input) {
+    // Step 1: Replace spaces with underscores
+    const snakeCase = input.replace(/ /g, "_");
+  
+    // Step 2: Convert the string to uppercase
+    const upperSnakeCase = snakeCase.toUpperCase();
+  
+    // Step 3: Return the result
+    return upperSnakeCase;
+  }
+  
\ No newline at end of file
diff --git a/Sprint-2/implement/to-pounds.js b/Sprint-2/implement/to-pounds.js
index 6265a1a7..a0f98fca 100644
--- a/Sprint-2/implement/to-pounds.js
+++ b/Sprint-2/implement/to-pounds.js
@@ -4,3 +4,13 @@
 // You will need to declare a function called toPounds with an appropriately named parameter.
 
 // You should call this function a number of times to check it works for different inputs
+
+
+function toPounds(kilograms) {
+    // Convert kilograms to pounds (1 kg = 2.20462 pounds)
+    const pounds = kilograms * 2.20462;
+  
+    // Return the result, rounded to 2 decimal places
+    return parseFloat(pounds.toFixed(2));
+  }
+  
\ No newline at end of file
diff --git a/Sprint-2/implement/vat.js b/Sprint-2/implement/vat.js
index 3fb16722..8647ce5c 100644
--- a/Sprint-2/implement/vat.js
+++ b/Sprint-2/implement/vat.js
@@ -8,3 +8,13 @@
 // Given a number,
 // When I call this function with a number
 // it returns the new price with VAT added on
+
+
+function addVAT(price) {
+    // Multiply the price by 1.2 to add 20% VAT
+    const vatInclusivePrice = price * 1.2;
+  
+    // Return the result, rounded to 2 decimal places
+    return parseFloat(vatInclusivePrice.toFixed(2));
+  }
+  
diff --git a/Sprint-2/interpret/time-format.js b/Sprint-2/interpret/time-format.js
index c5a0c161..b2e9615c 100644
--- a/Sprint-2/interpret/time-format.js
+++ b/Sprint-2/interpret/time-format.js
@@ -29,3 +29,6 @@ function formatTimeDisplay(seconds) {
 // d) What is the value assigned to num when pad is called for the last time in this program?  Explain your answer
 
 // e) What is the return value assigned to num when pad is called for the last time in this program?  Explain your answer
+
+
+return `${pad(0)}:${pad(1)}:${pad(1)}`; // "00:01:01"