diff --git a/src/functions.ts b/src/functions.ts
index 674ff85..e969d6e 100644
--- a/src/functions.ts
+++ b/src/functions.ts
@@ -8,6 +8,7 @@
  */
 function greet(name: string): void {
   // Your code here
+  console.log(`Hello ${name}`)
 }
 
 /**
@@ -21,7 +22,8 @@ function greet(name: string): void {
  */
 function isOdd(n: number): boolean {
   // Your code here
-
+  if(n%2 !== 0)
+    return true;
   return false; // replace false with what you see is fit
 }
 
@@ -36,8 +38,9 @@ function isOdd(n: number): boolean {
  */
 function oddsSmallerThan(n: number): number {
   // Your code here
-
-  return -1; // replace -1 with what you see is fit
+  if(n%2 !== 0)
+    return (n-1)/2; 
+  return n/2; // replace -1 with what you see is fit
 }
 
 /**
@@ -52,8 +55,9 @@ function oddsSmallerThan(n: number): number {
  */
 function squareOrDouble(n: number): number {
   // Your code here
-
-  return -1; // replace -1 with what you see is fit
+  if(n%2 !== 0)
+    return n**2;
+  return n*2; // replace -1 with what you see is fit
 }
 
 export { greet, isOdd, oddsSmallerThan, squareOrDouble };