Are there rentals for umbrellas and beach chairs?

Yes, several rentals, chairs surfboards, bikes etc.

I didnt notice any

Yes

Yes. Not off the beach but there are shops has rentals.

Yes, and surfboards and bikes

I did not see any. But I was not looking for them.

Not that I noticed. Try at the pedal bike kiosk as they'd know where to go for such rentals.

Yes left of the pier