Love Letter

Vishnu is an Engineering student and Geetha is a Medical student. Vishnu and Geetha are in love. They are in different cities. Vishnu likes to write love letters to Geetha but there are no means of communication between him and Geetha. Once, Vishnu comes to know that Geetha’s friend Latha who stays in his place goes to Geetha’s place daily. He can hand the letters to Latha and ask her to deliver it to Geetha but he cannot believe Latha as she may read them. So he thinks of using a small trunk.

How can Vishnu use the trunk so as to deliver his love letters to Geetha via Latha and make sure that Latha can never read them?