Birthday party

You put these in robots or toy cars to make them run. What are these?

People usually do this at night on New Year or other holidays.

People wear strange and colorful clothes when they do this.

Some people stand in front of a cake and do this before making a wish on their birthdays.

This is a kind of toy. You don’t have to touch it to make it run. What is it?

People hold a microphone and look at the words on a TV to sing when they do this.

When people do this, they have food and drinks while playing a game with a heavy ball.

This has drawings and a message on it. You send it to someone on their birthday. What is it?