Portmanteau WordsSet 5

1What does " Car pooling " most likely mean?
2What does premix mean?
3Which word means "to watch multiple episodes of a TV show in one sitting"?
4Number crunchier is the informal name for
5Medicare, a federal program established for Americans 65+, was intended to provide
6What does jab mean?
7Software which can harm a device
8Asking large amounts of people for money for a project
9What does "speedometer" measure?