Answer:
If you drop me, I'm sure to crack. Give me a smile and I'll always smile back. What am I?
I can be driven but have no wheels. I can be sliced but still remains whole
I look like a tiny trombone
I belong to everyone. Sometimes make you happy, sometimes make you sad. I will never end until the day you do. What am I?
I help engines spin and pants stay up. What am I?
Those with eyes bigger than their stomach will definitely leave the restaurant with one of them. It is named after a house pet as well.