These are short and simple. :) I've included my answers, tell me if I am wrong please.

Question

CH3 is attached to a carbon on a pentane ring. Is the hybridization of the carbon sp3?

NH connects a benzene ring to two benzene rings. Is the hybridization of the nitrogen sp2?

OH is attached to a carbon on a pentane ring. Is the hybridization of the oxygen sp? I had issues with this one.

On a benzene ring, what is the hybridization of a carbon that has a double bond on one side and a single bond on the other? Is it sp2?