Hints

(Only up to Level 5!)

Level 1 : Follow the instructions!
Level 2 : Ctrl+U or Ctrl+Shift+I!
Level 3 : Notice the capital letters in gift? Use them!
Level 4 : Cat would be 3 1 20!
Level 5 : Cat 1 would be C!

Tips!

Valid for the entire thing!

For photo-editing softwares, GIMP is useful and free!

For audio-editing softwares, Audacity is also useful and free!

Play other riddles too! This can help with your overall knowledge and skills!