Answer:
Man's most important invention.
What has hands but canβt clap?
It belongs to you but you donβt use it. It does not belong to other people but they use it. What is it?
You can carry it everywhere you go, and it does not get heavy. What is it?
Tickle with your fingers and a song it will sing. Be careful, though, you may break a string. What is it?
A word of five letters, Upside down is the same, A shark does this, But itβs not to blame. What is the word?